An Interactive Guide to the Fourier Transform

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

#HackerNews #FourierTransform #InteractiveGuide #MathEducation #SignalProcessing

NEW at #PIMRC2025!
📡 We're mastering Near-Field complexity in ELAA systems.
Introducing VR-HMM-P-SOMP: a novel algorithm using HMMs to tackle spatial non-stationarity (SnS). The result? Significantly improved estimation accuracy (NMSE) in low-SNR scenarios for future #6G networks! 🚀

🔗 https://zenodo.org/records/17631563

#MultiX #ChannelEstimation #WirelessNetworks #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

i love these classic signal processing papers!

`A stand-alone noise suppression algorithm is presented for reducing the spectral effects of acoustically added noise in speech. Effective performance of digital speech processors operating in practical environments may require suppression of noise from the digital wave-form. Spectral subtraction offers a computationally efficient, processor-independent approach to effective digital speech analysis. `

https://ieeexplore.ieee.org/abstract/document/1163209

#signalProcessing

https://www.continuummechanics.org/fourierxforms.html : The FFT is fundamentally a multivariable linear regression, not just a signal analyzer. 🤯 Don't trust magnitude plots alone! Seeing a frequency spike doesn't prove the object was vibrating there. Engineers must consider phase lags to avoid erroneous conclusions in system analysis. #FFT #SignalProcessing

Fourier Transforms

https://www.continuummechanics.org/fourierxforms.html

#HackerNews #FourierTransforms #Mathematics #SignalProcessing #DataAnalysis #Waveforms

New publication Plaquette on our open source object oriented framework for embedded interaction design and experimentation https://joss.theoj.org/papers/10.21105/joss.09144 #interactivemedia #physicalcomputing #signalprocessing #arduino #plaquette see: http://plaquette.org

🔉〰️From Euclid to Spotify, he traces the history and foundations of #signalprocessing, ending with its omnipresence in our daily lives.

I'm excited to present at the DSP Online Conference next week! Looking forward to the Q&A section, hearing everyone's talks, and meeting more DSP nerds! #DSP #signalprocessing #tides #math #physics

💫 Fast frequency reconstruction using Deep Learning for event recognition in ring laser data

https://arxiv.org/abs/2510.03325

#laser #optics #navigation #gyroscope #signals #signalprocessing #ml #deeplearning

The Discrete Fourier Transform confuses people. I tried to simplify it. This new guide is an attempt. It covers the basics. Judge for yourself.
https://guides.datainquiry.dev/Discrete_Fourier_Transform
#signalprocessing #DataScience

💊IronPill 2💊
In the second of our series of short videos ("ironPills") showcasing ironArray's work, we see how Blosc2 can be used to power heavy-duty linear algebra (100GB!) workflows
⚡1.5-2x faster than PyTorch + h5py!
🧱 automated chunking optimised for your machine's cache hierarchy
🐍 simple one-line syntax 𝚋𝚕𝚘𝚜𝚌𝟸.𝚖𝚊𝚝𝚖𝚞𝚕(𝙰, 𝙱, 𝚞𝚛𝚕𝚙𝚊𝚝𝚑='𝚘𝚞𝚝.𝚋𝟸𝚗𝚍')

See blog here: https://ironarray.io/blog/la-blosc

#Blosc2
#Data
#SignalProcessing
#LinearAlgebra

💊 IronPill 1💊
In the first of a series of short videos ("ironPills") showcasing ironArray's work, we see how Blosc2 can be used to calculate Fourier approximations:
⚡5x faster than NumPy
👣 fraction of the memory footprint
🐍 pythonic one-line syntax 𝚜𝚞𝚖(𝚊 * 𝚌𝚘𝚜(𝚝) + 𝚋 * 𝚜𝚒𝚗(𝚝), 𝚊𝚡𝚒𝚜=𝟷)

See full notebook here: https://github.com/Blosc/python-blosc2/blob/main/examples/ndarray/ironpill1.ipynb

(inspired by this blog post: https://towardsdatascience.com/numexpr-the-faster-than-numpy-library-that-no-ones-heard-of/)

#Blosc2
#Data
#SignalProcessing

@mjd
A ‘Processing Graph Method’ (PGM) notation and tool based on Petri net notation was originally developed by NRL in the mid 1980’s and used as an Acoustic Signal Processing language for US Navy applications. It was successsfully used to port ASP applications to a variety of specialized signal processors as well as conventional ISP architectures, and was released with a GNU GPL license for research and other uses.

#programinglanguages #signalprocessing #petrienet

https://ia803100.us.archive.org/view_archive.php?archive=/13/items/ieee-us-government-works/ieee-us-government-works.zip&file=10.1109%252Fasap.1997.606832.pdf

Discrete Fourier Transform

https://nima101.github.io/dft

#HackerNews #DiscreteFourierTransform #DFT #SignalProcessing #FourierAnalysis #MathInTech #Algorithms

The analog whammy bar is just so passé.

https://www.youtube.com/shorts/ThMmIgB0scI

https://digitech.com/dp/whammy-dt/

#Music #Guitar #Electronics #SignalProcessing #Shred #EmiGrace

Fast Fourier Transforms Part 1: Cooley-Tukey

https://connorboyle.io/2025/09/11/fft-cooley-tukey.html

#HackerNews #FastFourierTransforms #CooleyTukey #FFT #SignalProcessing #Algorithms

Một người đã sử dụng cảm biến trên điện thoại (gia tốc kế & con quay hồi chuyển) để phát hiện nhịp tim và nhịp thở. Dự án này là bước đầu tiên để biến điện thoại thành thiết bị theo dõi sinh lý giá rẻ.

#MobileDev #SignalProcessing #CôngNghệ #ỨngDụng #SứcKhỏe #MobileTechnology #Vietnamese

https://www.reddit.com/r/SideProject/comments/1neyhr0/i_used_my_phones_sensors_to_detect_breathing/

What Is the Fourier Transform?

https://www.quantamagazine.org/what-is-the-fourier-transform-20250903/

#HackerNews #FourierTransform #Mathematics #SignalProcessing #Science #Education

What Is the Fourier Transform?

https://www.quantamagazine.org/what-is-the-fourier-transform-20250903/

#HackerNews #FourierTransform #Mathematics #SignalProcessing #ScienceEducation #QuantumPhysics