23 results for tags
math x
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Radar phase measurements - Henrik's Blog
Fri May 5 10:04:45 2023 - permalink -- https://hforsten.com/radar-phase-measurements.html
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An Interactive Introduction to Fourier Transforms
Introduction interactive à la transformée de FourrierMon Feb 27 10:48:17 2023 - permalink -- https://www.jezzamon.com/fourier/index.html
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Simulons la FFT de Xilinx | Front de Libération des FPGA
Tue Oct 18 15:01:53 2022 - permalink -- http://www.fabienm.eu/flf/simulons-la-fft-de-xilinx/
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francof2a/fxpmath: A python library for fractional fixed-point (base 2) arithmetic and binary manipulation with Numpy compatibility.
Une librairie pour faire des calculs avec des entier et virgule fixes de taille variable (autre que 8, 16, 32, ... bits)Thu Oct 6 16:09:05 2022 - permalink -- https://github.com/francof2a/fxpmath
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QR codes | Dan Hollick 🇿🇦
Une bonne description des QR code (Quick Response code)Thu Sep 15 08:24:32 2022 - permalink -- https://typefully.com/DanHollick/qr-codes-T7tLlNi
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Understanding Wavelets | Hackaday
Sous le coudeMon Sep 12 08:20:58 2022 - permalink -- https://hackaday.com/2022/09/10/understanding-wavelets/
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GPS – Bartosz Ciechanowski
Comment marche le GPS, explication complète en Images.Fri Jan 21 09:24:33 2022 - permalink -- https://ciechanow.ski/gps/
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FIR Filters by Windowing - The Lab Book Pages
Fri May 21 10:30:35 2021 - permalink -- http://www.labbookpages.co.uk/audio/firWindowing.html
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An Intuitive Look at Moving Average and CIC Filters | Electronics etc…
Fri Jan 29 11:32:37 2021 - permalink -- https://tomverbeure.github.io/2020/09/30/Moving-Average-and-CIC-Filters.html
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Fixed Point Numbers in Verilog | Project F
Virgule fixe en verilogTue May 26 19:48:04 2020 - permalink -- https://projectf.io/posts/fixed-point-numbers-in-verilog/
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The Scientist and Engineer's Guide to Digital Signal Processing
Un bouquin sur le traitement du signal gratuit en ligne.Thu Mar 19 08:24:08 2020 - permalink -- https://www.dspguide.com/
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Synthetic-aperture radar imaging - Henrik's Blog
D'habitude quand on parle de radar à ouverture synthétique on pense tout de suite à «avion de chasse» ou a «satellite» .Wed Aug 14 09:12:43 2019 - permalink -
Henrik, lui il a monté un radar SAR (Synthetic Apertur Radar) sur son vélo ;)- http://hforsten.com/synthetic-aperture-radar-imaging.html
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Pôles et zéros
Wed Jun 19 09:00:39 2019 - permalink -- http://www.f-legrand.fr/scidoc/docimg/numerique/filtre/poleszeros/poleszeros.html
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Fast Fourier Transform
Comment calculer une FFTThu Mar 29 14:37:30 2018 - permalink -- http://paulbourke.net/miscellaneous/dft/
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Tutorial on Signal Processing in Linux with Octave | Hackaday
coudeFri Jul 1 09:06:56 2016 - permalink -- http://hackaday.com/2016/06/30/tutorial-on-signal-processing-in-linux-with-octave/
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Explained Visually
Super ce site ! Les maths expliquées visuellement.Thu Mar 24 12:19:07 2016 - permalink -- http://setosa.io/ev/
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Markov Chains explained visually
Thu Mar 24 12:15:25 2016 - permalink -- http://setosa.io/ev/markov-chains/
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Visualizing the Fourier Transform | Hackaday
Thu Sep 17 14:13:38 2015 - permalink -- http://hackaday.com/2015/09/17/visualizing-the-fourier-transform/
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9.5. fractions — Rational numbers — Python 2.7.10 documentation
Tiens marrant, il y a un module python en natif pour simplifier les fractions.Tue Aug 25 11:25:37 2015 - permalink -
In [24]: from fractions import Fraction
In [27]: Fraction(2, 8)
Out[27]: Fraction(1, 4)
In [28]: print Fraction(2, 8)
1/4
In [29]: print str(int(Fraction(2, 8)))
0
In [30]: print str(float(Fraction(2, 8)))
0.25- https://docs.python.org/2/library/fractions.html
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r = (sin(theta)+1) (9/10 cos(8 theta)+1) (1/10 cos(24 theta)+1) (1/10 cos(200 theta)+9/10) - Wolfram|Alpha
La formule des toxicos ;)Mon Jul 6 08:40:06 2015 - permalink -- http://www.wolframalpha.com/input/?i=r+%3D+(sin(theta)%2B1)+(9%2F10+cos(8+theta)%2B1)+(1%2F10+cos(24+theta)%2B1)+(1%2F10+cos(200+theta)%2B9%2F10)