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Signal Processing

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Awarded 6120 times.
Projection Matrix -- where does it come from?
Awarded Dec 26, 2022 at 19:40
2D Cross-Correlation using 1D FFT
Awarded Dec 26, 2022 at 13:45
Why color is coded with two numbers rather than one?
Awarded Dec 26, 2022 at 10:41
How to find impulse response of the input signal in Python?
Awarded Dec 25, 2022 at 21:17
How to Find Elliptic IIR Filter Order?
Awarded Dec 25, 2022 at 9:36
Difference Between Built-in Periodogram and Self-Calculated Periodogram
Awarded Dec 25, 2022 at 9:07
What does frequency filtering actually practically mean?
Awarded Dec 23, 2022 at 12:55
Accurate frequency estimation with closely-spaced tones
Awarded Dec 23, 2022 at 2:06
Is my solution correct?
Awarded Dec 22, 2022 at 15:27
Non Gaussian noise in communication system
Awarded Dec 21, 2022 at 15:27
How to perform an operation on a signal which depends on 2 variables?
Awarded Dec 20, 2022 at 20:30
MATLAB: cannot get CMA code for polarization demultiplexing to work
Awarded Dec 20, 2022 at 10:12
Range-Doppler Coupling in FMCW
Awarded Dec 20, 2022 at 6:50
Replicating scipy.signal.lfilter with initial condition using IPP
Awarded Dec 19, 2022 at 19:10
L1 regularization vs maximal entropy?
Awarded Dec 19, 2022 at 18:42
How can I find $x_r(t)$ in this case?
Awarded Dec 18, 2022 at 19:07
Fixed point scaling; float -> Q31 -> float
Awarded Dec 18, 2022 at 0:56
Expected value and autocorrelation
Awarded Dec 16, 2022 at 18:57
Averaging 2D signal with ignored samples
Awarded Dec 16, 2022 at 13:49
Why can two different signals have the same periodogram?
Awarded Dec 16, 2022 at 13:25
possible spectral leakage
Awarded Dec 16, 2022 at 13:25
Are allpass filters maximum-phase systems?
Awarded Dec 15, 2022 at 21:01
How can I analyse the motion of plasma
Awarded Dec 14, 2022 at 16:21
Sampling Time Offset estimation for OFDM signal
Awarded Dec 14, 2022 at 12:48
Kalman Filter - Order of Update Step?
Awarded Dec 12, 2022 at 23:35
Am I using FIR filters correctly for audio filtering?
Awarded Dec 12, 2022 at 17:43
Trying to implement a digital LPF
Awarded Dec 12, 2022 at 14:45
Expressing the frequency response in a more 'compact' form
Awarded Dec 11, 2022 at 12:43
Vectorizing a biquad filter (python / numpy)
Awarded Dec 11, 2022 at 12:06
Order of operations when a real audio signal becomes complex
Awarded Dec 10, 2022 at 17:37
Understanding negative power in a time frequency heat plot
Awarded Dec 9, 2022 at 13:27
Correlation and ratio between two signals?
Awarded Dec 9, 2022 at 7:41
Find $E[Z^2(t)]$ when $Z(t) = X(t) - Y(t)$ where $Y$ is the output of a LTI system with WSS process $X$ as its input
Awarded Dec 8, 2022 at 0:26
How is $u(at+b) = u(t+b/a)$ for $a>0$ and $u(-t-b/a)$ for $a<0$?
Awarded Dec 6, 2022 at 19:16
How to implement a 3rd order Butterworth IIR allpass filter with perfectly flat frequency response?
Awarded Dec 5, 2022 at 10:53
Why does a signal with constant frequency have spots that changes colors at a specific value of scale (and so frequency) in the scalogram?
Awarded Dec 4, 2022 at 7:36
How to write transfer function?
Awarded Dec 4, 2022 at 0:26
Symmetric half band filter - redundant oversampling?
Awarded Dec 3, 2022 at 19:55
Determining if a system is Linear
Awarded Dec 3, 2022 at 18:37
Extract diagonal area from image
Awarded Dec 2, 2022 at 9:33
What is the point of subtracting 1/Fs from the time variable
Awarded Dec 1, 2022 at 17:26
Synthesizing piano
Awarded Nov 30, 2022 at 19:56
Selecting convolutional code for a M-QAM transmitter
Awarded Nov 30, 2022 at 16:25
The Logic Behind Cascading a Moving Average Filter After a Median Filter
Awarded Nov 30, 2022 at 10:51
Before the fft2, why need fftshift for the kernel?
Awarded Nov 29, 2022 at 2:05
Why does an FFT-based filter change phase?
Awarded Nov 28, 2022 at 9:10
Finding the maximum frequency deviation and phase deviation
Awarded Nov 28, 2022 at 8:25
How to use Shannon Equation
Awarded Nov 26, 2022 at 3:27
Conceptual doubt about PID algorithm in PLC
Awarded Nov 25, 2022 at 10:11
frequency Domain with bandlimit
Awarded Nov 24, 2022 at 16:43
Is the implementation of this Z-transform correct?
Awarded Nov 22, 2022 at 23:41
How to Design a Model based on Convolutional Neural Network (CNN) which Supports Arbitrary Input Size in Training and Production
Awarded Nov 22, 2022 at 22:34
Why is scaling of images / pixels into `[0, 1]` range performed before SIFT (Scale Invariant Feature Transform) algorithm?
Awarded Nov 22, 2022 at 3:16
Relation between height of peaks of DFT and (continuous) FT
Awarded Nov 20, 2022 at 11:11
digital Butterworth high pass filter
Awarded Nov 18, 2022 at 17:21
First Order State Space Question
Awarded Nov 17, 2022 at 20:57
Solving for the Kernel of a system using impulse balancing with diracs delta's derivative
Awarded Nov 17, 2022 at 12:55
Why do my set of IR LEDS yield a purple-ish images on one camera sensor and greyscale on another?
Awarded Nov 16, 2022 at 8:12
Why is the signal from small diaphragm condenser microphone not a symmetrical shape
Awarded Nov 15, 2022 at 2:40
FFT of signal data with windowing, overlapping and averaging
Awarded Nov 14, 2022 at 11:51
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