#signalprocessing — Public Fediverse posts

An Interesting Fourier Transform – 1/F Noise

https://www.dsprelated.com/showarticle/40.php

Comments: https://news.ycombinator.com/item?id=49205082

#HackerNews #FourierTransform #1FNoise #DSP #SignalProcessing #Mathematics

An Interesting Fourier Transform – 1/F Noise

https://www.dsprelated.com/showarticle/40.php

Comments: https://news.ycombinator.com/item?id=49205082

#HackerNews #FourierTransform #1FNoise #DSP #SignalProcessing #Mathematics

MVspa_ Stochastic processes
Стохастические процессы, Випадкові процеси
#Stochastic processes
#Стохастическиепроцессы, #Випадковіпроцеси
t.me/scilib_yura15cbx/230

MVsa Statistics and applications
Статистика та додатки, Статистика и приложения
#Statistics
t.me/scilib_yura15cbx/229

EM_ Mechanics of elastic materials
Механіка пружних матеріалів, Механика упругих материалов
t.me/scilib_yura15cbx/228

MPd_ Dynamical systems
Динамические системы, Динамічні системи
#Dynamical systems
t.me/scilib_yura15cbx/227

MNw_ Wavelets, signal processing
Вейвлети, обробка сигналів, Вейвлеты, обработка сигналов
#Wavelets, #signal processing
t.me/scilib_yura15cbx/226

MNs_ Simulations of physics
Физические симуляции
t.me/scilib_yura15cbx/225

MNl_ Numerical linear algebra
Числова лінійна алгебра, Численная линейная алгебра
t.me/scilib_yura15cbx/224

MNf_ Finite elements
Конечные элементы, Скінченні елементи
t.me/scilib_yura15cbx/223

MNd_ Numerical calculus
t.me/scilib_yura15cbx/222

MDgt_ General topology
#topology
Общая топология, Загальна топологія
t.me/scilib_yura15cbx/221

MDdg_ Differential geometry
Диференціальна геометрія, Дифференциальная геометрия
t.me/scilib_yura15cbx/220

MDat_ Algebraic and differential topology
Алгебраическая и дифференциальная топология, Алгебраїчна та диференціальна топологія
t.me/scilib_yura15cbx/219

MCv_ Variational calculus
Варіаційне числення, Вариационное исчисление
t.me/scilib_yura15cbx/218

MCta_ Tensor calculus, forms
Тензорное исчисление, формы, Тензорне числення, форми
t.me/scilib_yura15cbx/217

MCsf_ Special functions
Спеціальні функції, Специальные функции
t.me/scilib_yura15cbx/216

MCf_ Functional analysis
Функциональный анализ, Функціональний аналіз
t.me/scilib_yura15cbx/215

MCet_ Elementary calculus textbooks
Підручники з елементарного числення, Учебники по элементарному исчислению
t.me/scilib_yura15cbx/214

MCde_ Differential equations
Дифференциальные уравнения, Диференціальні рівняння
#Differential equations
t.me/scilib_yura15cbx/213

MCcf_ Continued fractions
Суцільні дроби, Непрерывные дроби
t.me/scilib_yura15cbx/212

MCc_ Complex variable
Комплексная переменная, Комплексна змінна
t.me/scilib_yura15cbx/211

MCat_ Advanced calculus
t.me/scilib_yura15cbx/210

Asymptotics, perturbations
Асимптотика, збурення,
Асимптотика, возмущения
#Asymptotics, #perturbations
#Асимптотика, #збурення,
#Асимптотика, #возмущения
t.me/scilib_yura15cbx/209

Group theory, Теория групп, Теорія груп
#Group theory, #Теориягрупп, #Теоріягруп
t.me/scilib_yura15cbx/208

Algebra textbooks,
Підручники з алгебри,
Учебники по алгебре
t.me/scilib_yura15cbx/207

Set theory,
Теория множеств, Теорія множин
#Set theory,
#Теория множеств,
t.me/scilib_yura15cbx/206

Representation theory
Теорія репрезентації, Теория представлений
t.me/scilib_yura15cbx/205

Quantum groups
#Quantum groups
Квантовые группы, Квантові групи
t.me/scilib_yura15cbx/204

Mathematical logic
#Mathematical logic
Математична логіка, Математическая логика
t.me/scilib_yura15cbx/203

Linear algebra
#Linear algebra
Линейная алгебра, Лінійна алгебра
t.me/scilib_yura15cbx/202

Homology, Гомологія, Гомология
#Homology, #Гомологія, #Гомология
t.me/scilib_yura15cbx/201

Algebraic geometry
Алгебраическая геометрия, Алгебраїчна геометрія
t.me/scilib_yura15cbx/200

Algebraic geometry
#Algebraic geometry
Алгебраическая геометрия, Алгебраїчна геометрія
t.me/scilib_yura15cbx/200

Finite groups
Скінченні групи, Конечные группы
t.me/scilib_yura15cbx/199

Differential algebra
#Differential algebra
Дифференциальная алгебра, Диференціальна алгебра
t.me/scilib_yura15cbx/198

Category theory
Теорія категорій, Теория категорий

MVspa_ Stochastic processes
Стохастические процессы, Випадкові процеси
#Stochastic processes
#Стохастическиепроцессы, #Випадковіпроцеси
t.me/scilib_yura15cbx/230

MVsa Statistics and applications
Статистика та додатки, Статистика и приложения
#Statistics
t.me/scilib_yura15cbx/229

EM_ Mechanics of elastic materials
Механіка пружних матеріалів, Механика упругих материалов
t.me/scilib_yura15cbx/228

MPd_ Dynamical systems
Динамические системы, Динамічні системи
#Dynamical systems
t.me/scilib_yura15cbx/227

MNw_ Wavelets, signal processing
Вейвлети, обробка сигналів, Вейвлеты, обработка сигналов
#Wavelets, #signal processing
t.me/scilib_yura15cbx/226

MNs_ Simulations of physics
Физические симуляции
t.me/scilib_yura15cbx/225

MNl_ Numerical linear algebra
Числова лінійна алгебра, Численная линейная алгебра
t.me/scilib_yura15cbx/224

MNf_ Finite elements
Конечные элементы, Скінченні елементи
t.me/scilib_yura15cbx/223

MNd_ Numerical calculus
t.me/scilib_yura15cbx/222

MDgt_ General topology
#topology
Общая топология, Загальна топологія
t.me/scilib_yura15cbx/221

MDdg_ Differential geometry
Диференціальна геометрія, Дифференциальная геометрия
t.me/scilib_yura15cbx/220

MDat_ Algebraic and differential topology
Алгебраическая и дифференциальная топология, Алгебраїчна та диференціальна топологія
t.me/scilib_yura15cbx/219

MCv_ Variational calculus
Варіаційне числення, Вариационное исчисление
t.me/scilib_yura15cbx/218

MCta_ Tensor calculus, forms
Тензорное исчисление, формы, Тензорне числення, форми
t.me/scilib_yura15cbx/217

MCsf_ Special functions
Спеціальні функції, Специальные функции
t.me/scilib_yura15cbx/216

MCf_ Functional analysis
Функциональный анализ, Функціональний аналіз
t.me/scilib_yura15cbx/215

MCet_ Elementary calculus textbooks
Підручники з елементарного числення, Учебники по элементарному исчислению
t.me/scilib_yura15cbx/214

MCde_ Differential equations
Дифференциальные уравнения, Диференціальні рівняння
#Differential equations
t.me/scilib_yura15cbx/213

MCcf_ Continued fractions
Суцільні дроби, Непрерывные дроби
t.me/scilib_yura15cbx/212

MCc_ Complex variable
Комплексная переменная, Комплексна змінна
t.me/scilib_yura15cbx/211

MCat_ Advanced calculus
t.me/scilib_yura15cbx/210

Asymptotics, perturbations
Асимптотика, збурення,
Асимптотика, возмущения
#Asymptotics, #perturbations
#Асимптотика, #збурення,
#Асимптотика, #возмущения
t.me/scilib_yura15cbx/209

Group theory, Теория групп, Теорія груп
#Group theory, #Теориягрупп, #Теоріягруп
t.me/scilib_yura15cbx/208

Algebra textbooks,
Підручники з алгебри,
Учебники по алгебре
t.me/scilib_yura15cbx/207

Set theory,
Теория множеств, Теорія множин
#Set theory,
#Теория множеств,
t.me/scilib_yura15cbx/206

Representation theory
Теорія репрезентації, Теория представлений
t.me/scilib_yura15cbx/205

Quantum groups
#Quantum groups
Квантовые группы, Квантові групи
t.me/scilib_yura15cbx/204

Mathematical logic
#Mathematical logic
Математична логіка, Математическая логика
t.me/scilib_yura15cbx/203

Linear algebra
#Linear algebra
Линейная алгебра, Лінійна алгебра
t.me/scilib_yura15cbx/202

Homology, Гомологія, Гомология
#Homology, #Гомологія, #Гомология
t.me/scilib_yura15cbx/201

Algebraic geometry
Алгебраическая геометрия, Алгебраїчна геометрія
t.me/scilib_yura15cbx/200

Algebraic geometry
#Algebraic geometry
Алгебраическая геометрия, Алгебраїчна геометрія
t.me/scilib_yura15cbx/200

Finite groups
Скінченні групи, Конечные группы
t.me/scilib_yura15cbx/199

Differential algebra
#Differential algebra
Дифференциальная алгебра, Диференціальна алгебра
t.me/scilib_yura15cbx/198

Category theory
Теорія категорій, Теория категорий

MVspa_ Stochastic processes
Стохастические процессы, Випадкові процеси
#Stochastic processes
#Стохастическиепроцессы, #Випадковіпроцеси
t.me/scilib_yura15cbx/230

MVsa Statistics and applications
Статистика та додатки, Статистика и приложения
#Statistics
t.me/scilib_yura15cbx/229

EM_ Mechanics of elastic materials
Механіка пружних матеріалів, Механика упругих материалов
t.me/scilib_yura15cbx/228

MPd_ Dynamical systems
Динамические системы, Динамічні системи
#Dynamical systems
t.me/scilib_yura15cbx/227

MNw_ Wavelets, signal processing
Вейвлети, обробка сигналів, Вейвлеты, обработка сигналов
#Wavelets, #signal processing
t.me/scilib_yura15cbx/226

MNs_ Simulations of physics
Физические симуляции
t.me/scilib_yura15cbx/225

MNl_ Numerical linear algebra
Числова лінійна алгебра, Численная линейная алгебра
t.me/scilib_yura15cbx/224

MNf_ Finite elements
Конечные элементы, Скінченні елементи
t.me/scilib_yura15cbx/223

MNd_ Numerical calculus
t.me/scilib_yura15cbx/222

MDgt_ General topology
#topology
Общая топология, Загальна топологія
t.me/scilib_yura15cbx/221

MDdg_ Differential geometry
Диференціальна геометрія, Дифференциальная геометрия
t.me/scilib_yura15cbx/220

MDat_ Algebraic and differential topology
Алгебраическая и дифференциальная топология, Алгебраїчна та диференціальна топологія
t.me/scilib_yura15cbx/219

MCv_ Variational calculus
Варіаційне числення, Вариационное исчисление
t.me/scilib_yura15cbx/218

MCta_ Tensor calculus, forms
Тензорное исчисление, формы, Тензорне числення, форми
t.me/scilib_yura15cbx/217

MCsf_ Special functions
Спеціальні функції, Специальные функции
t.me/scilib_yura15cbx/216

MCf_ Functional analysis
Функциональный анализ, Функціональний аналіз
t.me/scilib_yura15cbx/215

MCet_ Elementary calculus textbooks
Підручники з елементарного числення, Учебники по элементарному исчислению
t.me/scilib_yura15cbx/214

MCde_ Differential equations
Дифференциальные уравнения, Диференціальні рівняння
#Differential equations
t.me/scilib_yura15cbx/213

MCcf_ Continued fractions
Суцільні дроби, Непрерывные дроби
t.me/scilib_yura15cbx/212

MCc_ Complex variable
Комплексная переменная, Комплексна змінна
t.me/scilib_yura15cbx/211

MCat_ Advanced calculus
t.me/scilib_yura15cbx/210

Asymptotics, perturbations
Асимптотика, збурення,
Асимптотика, возмущения
#Asymptotics, #perturbations
#Асимптотика, #збурення,
#Асимптотика, #возмущения
t.me/scilib_yura15cbx/209

Group theory, Теория групп, Теорія груп
#Group theory, #Теориягрупп, #Теоріягруп
t.me/scilib_yura15cbx/208

Algebra textbooks,
Підручники з алгебри,
Учебники по алгебре
t.me/scilib_yura15cbx/207

Set theory,
Теория множеств, Теорія множин
#Set theory,
#Теория множеств,
t.me/scilib_yura15cbx/206

Representation theory
Теорія репрезентації, Теория представлений
t.me/scilib_yura15cbx/205

Quantum groups
#Quantum groups
Квантовые группы, Квантові групи
t.me/scilib_yura15cbx/204

Mathematical logic
#Mathematical logic
Математична логіка, Математическая логика
t.me/scilib_yura15cbx/203

Linear algebra
#Linear algebra
Линейная алгебра, Лінійна алгебра
t.me/scilib_yura15cbx/202

Homology, Гомологія, Гомология
#Homology, #Гомологія, #Гомология
t.me/scilib_yura15cbx/201

Algebraic geometry
Алгебраическая геометрия, Алгебраїчна геометрія
t.me/scilib_yura15cbx/200

Algebraic geometry
#Algebraic geometry
Алгебраическая геометрия, Алгебраїчна геометрія
t.me/scilib_yura15cbx/200

Finite groups
Скінченні групи, Конечные группы
t.me/scilib_yura15cbx/199

Differential algebra
#Differential algebra
Дифференциальная алгебра, Диференціальна алгебра
t.me/scilib_yura15cbx/198

Category theory
Теорія категорій, Теория категорий

MVspa_ Stochastic processes
Стохастические процессы, Випадкові процеси
#Stochastic processes
#Стохастическиепроцессы, #Випадковіпроцеси
t.me/scilib_yura15cbx/230

MVsa Statistics and applications
Статистика та додатки, Статистика и приложения
#Statistics
t.me/scilib_yura15cbx/229

EM_ Mechanics of elastic materials
Механіка пружних матеріалів, Механика упругих материалов
t.me/scilib_yura15cbx/228

MPd_ Dynamical systems
Динамические системы, Динамічні системи
#Dynamical systems
t.me/scilib_yura15cbx/227

MNw_ Wavelets, signal processing
Вейвлети, обробка сигналів, Вейвлеты, обработка сигналов
#Wavelets, #signal processing
t.me/scilib_yura15cbx/226

MNs_ Simulations of physics
Физические симуляции
t.me/scilib_yura15cbx/225

MNl_ Numerical linear algebra
Числова лінійна алгебра, Численная линейная алгебра
t.me/scilib_yura15cbx/224

MNf_ Finite elements
Конечные элементы, Скінченні елементи
t.me/scilib_yura15cbx/223

MNd_ Numerical calculus
t.me/scilib_yura15cbx/222

MDgt_ General topology
#topology
Общая топология, Загальна топологія
t.me/scilib_yura15cbx/221

MDdg_ Differential geometry
Диференціальна геометрія, Дифференциальная геометрия
t.me/scilib_yura15cbx/220

MDat_ Algebraic and differential topology
Алгебраическая и дифференциальная топология, Алгебраїчна та диференціальна топологія
t.me/scilib_yura15cbx/219

MCv_ Variational calculus
Варіаційне числення, Вариационное исчисление
t.me/scilib_yura15cbx/218

MCta_ Tensor calculus, forms
Тензорное исчисление, формы, Тензорне числення, форми
t.me/scilib_yura15cbx/217

MCsf_ Special functions
Спеціальні функції, Специальные функции
t.me/scilib_yura15cbx/216

MCf_ Functional analysis
Функциональный анализ, Функціональний аналіз
t.me/scilib_yura15cbx/215

MCet_ Elementary calculus textbooks
Підручники з елементарного числення, Учебники по элементарному исчислению
t.me/scilib_yura15cbx/214

MCde_ Differential equations
Дифференциальные уравнения, Диференціальні рівняння
#Differential equations
t.me/scilib_yura15cbx/213

MCcf_ Continued fractions
Суцільні дроби, Непрерывные дроби
t.me/scilib_yura15cbx/212

MCc_ Complex variable
Комплексная переменная, Комплексна змінна
t.me/scilib_yura15cbx/211

MCat_ Advanced calculus
t.me/scilib_yura15cbx/210

Asymptotics, perturbations
Асимптотика, збурення,
Асимптотика, возмущения
#Asymptotics, #perturbations
#Асимптотика, #збурення,
#Асимптотика, #возмущения
t.me/scilib_yura15cbx/209

Group theory, Теория групп, Теорія груп
#Group theory, #Теориягрупп, #Теоріягруп
t.me/scilib_yura15cbx/208

Algebra textbooks,
Підручники з алгебри,
Учебники по алгебре
t.me/scilib_yura15cbx/207

Set theory,
Теория множеств, Теорія множин
#Set theory,
#Теория множеств,
t.me/scilib_yura15cbx/206

Representation theory
Теорія репрезентації, Теория представлений
t.me/scilib_yura15cbx/205

Quantum groups
#Quantum groups
Квантовые группы, Квантові групи
t.me/scilib_yura15cbx/204

Mathematical logic
#Mathematical logic
Математична логіка, Математическая логика
t.me/scilib_yura15cbx/203

Linear algebra
#Linear algebra
Линейная алгебра, Лінійна алгебра
t.me/scilib_yura15cbx/202

Homology, Гомологія, Гомология
#Homology, #Гомологія, #Гомология
t.me/scilib_yura15cbx/201

Algebraic geometry
Алгебраическая геометрия, Алгебраїчна геометрія
t.me/scilib_yura15cbx/200

Algebraic geometry
#Algebraic geometry
Алгебраическая геометрия, Алгебраїчна геометрія
t.me/scilib_yura15cbx/200

Finite groups
Скінченні групи, Конечные группы
t.me/scilib_yura15cbx/199

Differential algebra
#Differential algebra
Дифференциальная алгебра, Диференціальна алгебра
t.me/scilib_yura15cbx/198

Category theory
Теорія категорій, Теория категорий

John Tukey the Fast Fourier Transform (FFT) inventor, who coined both "bit" and "software" died exactly 26 years ago today.

The Fast Fourier Transform (FFT), one of the most important algorithms in signal processing and data analysis, was introduced by Tukey & Cooley in 1965.

In 1805, Gauss - studying the orbits of asteroids Pallas and Juno - came up with a method to interpolate their trajectories from discrete samples. What he came up with was mathematically very close to the modern FFT but Gauss never published that work, and didn’t analyze its computational complexity. It predated even Fourier’s 1822 work on heat diffusion - but without the framing or generalization that Cooley & Tukey would bring 160 years later.

In 1965, Cooley & Tukey published their now-famous algorithm that reduced the cost of computing a Discrete Fourier Transform from 𝑂(𝑛²) to 𝑂(𝑛 log⁡𝑛). This leap made real-time signal processing and digital media compression feasible.

From radio telescopes to JPEGs, from audio codecs to quantum mechanics - the FFT is everywhere. It’s one of the most important (and elegant) algorithms of the 20th century - rooted in the genius of Gauss, but brought to life in the computer age.

#JohnTukey #FastFourierTransform #FFT #SignalProcessing #ComputerScience #Mathematics #Algorithm #DataScience #DigitalSignalProcessing #FourierTransform #ComputationalScience #ScientificComputing #HistoryOfScience #Innovation #CarlFriedrichGauss #JosephFourier #JamesCooley #STEM #Engineering #ArtificialIntelligence #MachineLearning #QuantumComputing #ImageProcessing #AudioProcessing #Statistics #TechHistory #Computing #Science #InnovationLegacy #OnThisDay

John Tukey the Fast Fourier Transform (FFT) inventor, who coined both "bit" and "software" died exactly 26 years ago today.

The Fast Fourier Transform (FFT), one of the most important algorithms in signal processing and data analysis, was introduced by Tukey & Cooley in 1965.

In 1805, Gauss - studying the orbits of asteroids Pallas and Juno - came up with a method to interpolate their trajectories from discrete samples. What he came up with was mathematically very close to the modern FFT but Gauss never published that work, and didn’t analyze its computational complexity. It predated even Fourier’s 1822 work on heat diffusion - but without the framing or generalization that Cooley & Tukey would bring 160 years later.

In 1965, Cooley & Tukey published their now-famous algorithm that reduced the cost of computing a Discrete Fourier Transform from 𝑂(𝑛²) to 𝑂(𝑛 log⁡𝑛). This leap made real-time signal processing and digital media compression feasible.

From radio telescopes to JPEGs, from audio codecs to quantum mechanics - the FFT is everywhere. It’s one of the most important (and elegant) algorithms of the 20th century - rooted in the genius of Gauss, but brought to life in the computer age.

#JohnTukey #FastFourierTransform #FFT #SignalProcessing #ComputerScience #Mathematics #Algorithm #DataScience #DigitalSignalProcessing #FourierTransform #ComputationalScience #ScientificComputing #HistoryOfScience #Innovation #CarlFriedrichGauss #JosephFourier #JamesCooley #STEM #Engineering #ArtificialIntelligence #MachineLearning #QuantumComputing #ImageProcessing #AudioProcessing #Statistics #TechHistory #Computing #Science #InnovationLegacy #OnThisDay

Whales speak in sentences.
Sperm whales specifically have a diverse vocal repertoire, using sequences of clicks known as codas, and it looks like these codes form larger sequential stractures.

Link: https://www.tandfonline.com/doi/full/10.1080/09524622.2026.2684665

#SignalProcessing #Whales #Language

Whales speak in sentences.
Sperm whales specifically have a diverse vocal repertoire, using sequences of clicks known as codas, and it looks like these codes form larger sequential stractures.

Link: https://www.tandfonline.com/doi/full/10.1080/09524622.2026.2684665

#SignalProcessing #Whales #Language

Can't Stop the Signal. Poison It

https://blog.digitalgrease.dev/posts/fauxx-cant-stop-the-signal

#HackerNews #CantStopTheSignal #PoisonIt #DigitalGrease #TechNews #SignalProcessing

Can't Stop the Signal. Poison It

https://blog.digitalgrease.dev/posts/fauxx-cant-stop-the-signal

#HackerNews #CantStopTheSignal #PoisonIt #DigitalGrease #TechNews #SignalProcessing

Scalable Hardware Acceleration for Adaptive Chirplet Transforms

How does the new GPU-based Adaptive Chirplet Transform help process EEG signals? Researchers built a tool to make medical signal analysis 5x faster today.

#eeganalysis, #signalprocessing, #gpuacceleration, #medicaltech, #datascience

https://newsletter.tf/gpu-adaptive-chirplet-transform-eeg-speed/

Scalable Hardware Acceleration for Adaptive Chirplet Transforms

How does the new GPU-based Adaptive Chirplet Transform help process EEG signals? Researchers built a tool to make medical signal analysis 5x faster today.

#eeganalysis, #signalprocessing, #gpuacceleration, #medicaltech, #datascience

https://newsletter.tf/gpu-adaptive-chirplet-transform-eeg-speed/

A new GPU tool by Nishant Kumar makes signal processing much faster than old CPU methods. This helps doctors analyze brain data in real-time.

#eeganalysis, #signalprocessing, #gpuacceleration, #medicaltech, #datascience
https://newsletter.tf/gpu-adaptive-chirplet-transform-eeg-speed/

A new GPU tool by Nishant Kumar makes signal processing much faster than old CPU methods. This helps doctors analyze brain data in real-time.

#eeganalysis, #signalprocessing, #gpuacceleration, #medicaltech, #datascience
https://newsletter.tf/gpu-adaptive-chirplet-transform-eeg-speed/

#CFP

Recent Advances in Music Processing

Special Session at APSIPA ASC 2026 exploring music signal processing, computational musicology, deep learning for music, interactive music systems, MIR, and AI-based music research.

📍 Hanoi, Vietnam
📅 9–12 November 2026

https://www.apsipa2026.org/call_special_session.html

Organizers:
Tetsuro Kitahara ([email protected]) &
Eita Nakamura

Deadline: 15/05/2026

#MusicTechnology #MIR #MusicInformationRetrieval #SignalProcessing #AI #ComputationalMusicology

#CFP

Recent Advances in Music Processing

Special Session at APSIPA ASC 2026 exploring music signal processing, computational musicology, deep learning for music, interactive music systems, MIR, and AI-based music research.

📍 Hanoi, Vietnam
📅 9–12 November 2026

https://www.apsipa2026.org/call_special_session.html

Organizers:
Tetsuro Kitahara ([email protected]) &
Eita Nakamura

Deadline: 15/05/2026

#MusicTechnology #MIR #MusicInformationRetrieval #SignalProcessing #AI #ComputationalMusicology

here's the STELLA paper:

https://doi.org/10.1016/j.acra.2025.11.040

#radiology #science #medicine #webdev #biomedical #image #imageProcessing #signalProcessing #medicalImaging #imaging #CT #MRI

here's the STELLA paper:

https://doi.org/10.1016/j.acra.2025.11.040

#radiology #science #medicine #webdev #biomedical #image #imageProcessing #signalProcessing #medicalImaging #imaging #CT #MRI

just learned from the Stanford Alumni Magazine that Bernard Widrow passed away last September... inventor of the least-mean-square filter, which despite the funny name (it sounds a lot like least squares, minimum residual, etc.) was one of the most important developments in late 20th century adaptive signal processing and digital control. a true pioneer of modern engineering!

https://en.wikipedia.org/wiki/Least_mean_squares_filter

#StanfordUniversity #LeastMeanSquare #LMS #signalProcessing #adaptiveFilter

just learned from the Stanford Alumni Magazine that Bernard Widrow passed away last September... inventor of the least-mean-square filter, which despite the funny name (it sounds a lot like least squares, minimum residual, etc.) was one of the most important developments in late 20th century adaptive signal processing and digital control. a true pioneer of modern engineering!

https://en.wikipedia.org/wiki/Least_mean_squares_filter

#StanfordUniversity #LeastMeanSquare #LMS #signalProcessing #adaptiveFilter

How Passive Radar Works

https://www.passiveradar.com/how-passive-radar-works/

#HackerNews #PassiveRadar #Technology #RadarSystems #Innovation #SignalProcessing

How Passive Radar Works

https://www.passiveradar.com/how-passive-radar-works/

#HackerNews #PassiveRadar #Technology #RadarSystems #Innovation #SignalProcessing

the European Association for Signal Processing has a public library of PhD theses: https://theses.eurasip.org/ #phdchat #signalprocessing

the European Association for Signal Processing has a public library of PhD theses: https://theses.eurasip.org/ #phdchat #signalprocessing

I've gone straight down the rabbit hole on an Analog TV simulation. This page has the details and links to the iOS app (free download): https://analogtv.ambor.com/#

#CRT #AnalogTV #RetroTech #iOSDev #SignalProcessing #NTSC #PAL #SECAM #IndieApp

We are building out a new curriculum day for our #ComputationalNeuroscience course focused on time series analysis and #SignalProcessing. We're looking for 5-10 volunteer contributors w #CompNeuro & #DSP experience.

This is a #volunteer position. Learn more & apply: https://neuromatch.io/volunteer/

#Neuroscience #DataScience #OpenScience #volunteer #BuildYourCV

We are building out a new curriculum day for our #ComputationalNeuroscience course focused on time series analysis and #SignalProcessing. We're looking for 5-10 volunteer contributors w #CompNeuro & #DSP experience.

This is a #volunteer position. Learn more & apply: https://neuromatch.io/volunteer/

#Neuroscience #DataScience #OpenScience #volunteer #BuildYourCV

I'm on this project where we want to do #realtime #radar but are sort of starting with nothing (apart from world-class radar transmitters, receivers and expertise...)

One very smart but non-#software person wrote a bunch of good #signalprocessing #code and some "gets the job done" #gui code

Or it did until we went higher bandwidth

Last week I rewrote all the non-sigproc parts into #pyqt and #pyqtgraph. Today I benchmarked both.

Exactly the same speed....except pyqtgraph is

THREE ORDERS OF MAGNITUDE

faster than #matplotlib

#python peeps, please hear me. mpl has its place and uses. High data rate animated displays is not that place.

I'm on this project where we want to do #realtime #radar but are sort of starting with nothing (apart from world-class radar transmitters, receivers and expertise...)

One very smart but non-#software person wrote a bunch of good #signalprocessing #code and some "gets the job done" #gui code

Or it did until we went higher bandwidth

Last week I rewrote all the non-sigproc parts into #pyqt and #pyqtgraph. Today I benchmarked both.

Exactly the same speed....except pyqtgraph is

THREE ORDERS OF MAGNITUDE

faster than #matplotlib

#python peeps, please hear me. mpl has its place and uses. High data rate animated displays is not that place.

Engineering Signal Analysis - From Fourier to filtering
https://books.open.tudelft.nl/home/catalog/book/247

#freebook #openbook #book #dsp #fourier #filtering #pdf #signalanalysis #signalprocessing #audio #sound

Engineering Signal Analysis - From Fourier to filtering
https://books.open.tudelft.nl/home/catalog/book/247

#freebook #openbook #book #dsp #fourier #filtering #pdf #signalanalysis #signalprocessing #audio #sound

Given everything that we can do with noise-cancelling headphones and signal processing, why are they not able to cancel out the whine of the drones when doing follow-cam in sporting events? 🧐

#WinterOlympics #Drones #SignalProcessing #AudioProcessing

Given everything that we can do with noise-cancelling headphones and signal processing, why are they not able to cancel out the whine of the drones when doing follow-cam in sporting events? 🧐

#WinterOlympics #Drones #SignalProcessing #AudioProcessing

🚀Want to unlock the secrets of next-gen radar?
🌌It spots threats quicker than a blink!
👀✨Dive deeper into how this tech is reshaping air defense.
Check our bio for all the deets!💡🔐
#EarlyWarning #AESARadar #AirDefense #SignalProcessing #DetectionTech #SituationalAwareness

Huge if true:

https://lib.rs/crates/sonar

"Sonar is a #Rust project exploring data transmission using audio signals. It aims to enable communication across air-gapped systems or in environments where traditional networking is not an option, using only standard microphones and speakers."

#DSP #SignalProcessing #Audio #DigitalSignalProcessing #Network #RustLang

Huge if true:

https://lib.rs/crates/sonar

"Sonar is a #Rust project exploring data transmission using audio signals. It aims to enable communication across air-gapped systems or in environments where traditional networking is not an option, using only standard microphones and speakers."

#DSP #SignalProcessing #Audio #DigitalSignalProcessing #Network #RustLang

I learnt about the "entropy of the derivative" or delentropy from the paper linked.

The idea is that the standard formula for information entropy doesn't distinguish between permutations. The entropy formula −∑p(x)logp(x) depends on p(x) which, absent any extra information about a signal, is estimated by the histogram of that signal.

Now, if we do a random permutation of the values of the signal, the histogram doesn't change, so the entropy doesn't change. To find an 'entropy metric' that accounts for that we need to go to the second order, calculating the entropy of the signal derivative.

The delentropy is sensitive to the actual shape of a signal or spectrum, not only the distribution of its values.

https://arxiv.org/abs/1609.01117

#physics #SignalProcessing #spectroscopy

I learnt about the "entropy of the derivative" or delentropy from the paper linked.

The idea is that the standard formula for information entropy doesn't distinguish between permutations. The entropy formula −∑p(x)logp(x) depends on p(x) which, absent any extra information about a signal, is estimated by the histogram of that signal.

Now, if we do a random permutation of the values of the signal, the histogram doesn't change, so the entropy doesn't change. To find an 'entropy metric' that accounts for that we need to go to the second order, calculating the entropy of the signal derivative.

The delentropy is sensitive to the actual shape of a signal or spectrum, not only the distribution of its values.

https://arxiv.org/abs/1609.01117

#physics #SignalProcessing #spectroscopy

New in lucidRAG: AudioSummarizer, Reduced RAG + Constrained Fuzziness for audio.

Compute once at ingestion: deterministic signals + auditable evidence (transcript, diarization turns, tiny speaker clips).
Query-time: retrieve facts → optional LLM narrates. No accent/genre guessing. No speaker naming. Offline, pure .NET.

https://www.mostlylucid.net/blog/audiosummarizer-forensic-audio-characterization

#RAG #dotnet #ONNX #Audio #Privacy #SignalProcessing #LLM

New in lucidRAG: AudioSummarizer, Reduced RAG + Constrained Fuzziness for audio.

Compute once at ingestion: deterministic signals + auditable evidence (transcript, diarization turns, tiny speaker clips).
Query-time: retrieve facts → optional LLM narrates. No accent/genre guessing. No speaker naming. Offline, pure .NET.

https://www.mostlylucid.net/blog/audiosummarizer-forensic-audio-characterization

#RAG #dotnet #ONNX #Audio #Privacy #SignalProcessing #LLM

The Unreasonable Effectiveness of the Fourier Transform

https://joshuawise.com/resources/ofdm/

#HackerNews #UnreasonableEffectiveness #FourierTransform #SignalProcessing #Mathematics #Technology

The Unreasonable Effectiveness of the Fourier Transform

https://joshuawise.com/resources/ofdm/

#HackerNews #UnreasonableEffectiveness #FourierTransform #SignalProcessing #Mathematics #Technology

Another day, another new feature in #LabPlot - #BaselineCorrection (#arPLS) as an #analysis curve on the plot. 🎁:boost_love:

#MerryChristmas! We hope Santa is good to you this year!🎅 🎄

@[email protected]
@opensource

#OpenSource #FreeSoftware #FLOSS #FOSS #DataViz #DataAnalysis #KDE #BaselineRemoval #BackgroundCorrection #NoiseRemoval #XRD #FTIR #RamanSpectrum #SignalProcessing #Spectroscopy #PeakAnalysis #MaterialsScience #Chemistry #Nanomaterials #Tech #Technology

Another day, another new feature in #LabPlot - #BaselineCorrection (#arPLS) as an #analysis curve on the plot. 🎁:boost_love:

#MerryChristmas! We hope Santa is good to you this year!🎅 🎄

@[email protected]
@opensource

#OpenSource #FreeSoftware #FLOSS #FOSS #DataViz #DataAnalysis #KDE #BaselineRemoval #BackgroundCorrection #NoiseRemoval #XRD #FTIR #RamanSpectrum #SignalProcessing #Spectroscopy #PeakAnalysis #MaterialsScience #Chemistry #Nanomaterials #Tech #Technology

An Interactive Guide to the Fourier Transform

https://betterexplained.com/articles/an-interactive-guide-to-the-fourier-transform/

#HackerNews #FourierTransform #InteractiveGuide #MathEducation #SignalProcessing

An Interactive Guide to the Fourier Transform

https://betterexplained.com/articles/an-interactive-guide-to-the-fourier-transform/

#HackerNews #FourierTransform #InteractiveGuide #MathEducation #SignalProcessing

this is an excellent master's thesis on transfer function estimation from noisy data

https://dspace.mit.edu/bitstream/handle/1721.1/50472/42218062-MIT.pdf;sequence=2

#signalprocessing