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IFFT of Non causal signal?

Started by r13yadav 4 months ago3 replieslatest reply 4 months ago182 views
Hi,I have a frequency domain data (that is non-causal). How can I calculate the IFFT in MATLAB so that I can visualize the impulse response behavior of t<0.Thanks...

How can I estimate the 2 parameters of this signal?

Started by weetabixharry 4 months ago18 replieslatest reply 4 months ago171 views
I have a digital signal of fixed length (e.g. 100 samples). Somewhere within this signal is a contiguous region characterized by "low variance". The remainder of...

Rice channel + AWGN with lower BER than AWGN alone ??

Started by roblkc3 3 years ago7 replieslatest reply 4 months ago239 views
Hello!I am playing with the Matlab simulation of an OFDM-based modem I have created, and I am facing a weird problem: I have my frames pass through the "usual encoding/mapping/modulation/IFFT",...

FFT-Based Equation Error Method - JOS

Started by molem7b5 8 months ago4 replieslatest reply 4 months ago238 views
Hi,  I'm currently trying to implement the FFT-based equation method for filter design outlined by JOS, details of which can be found here. Specifically, I'm...

Help with PDM filter, please and thanks

Started by jon_l 5 months ago14 replieslatest reply 5 months ago211 views
It's been some time since I've had anything to do with DSP. With that said, I have a project requiring this skill set here and need help. I kept returning to this...

The Related Sites have Undergone a Major Upgrade - Please Report any Website Issue

Started by stephaneb 5 months ago5 replieslatest reply 5 months ago317 views
Over the last few weeks, we've been busy getting ready for a major back-end software and hardware upgrade for the Related sites and the big move finally took...

FM Carrier Recovery for AOA Calculation

Started by mrberman87 6 months ago1 replylatest reply 6 months ago159 views
Is there a way to recover a carrier of an FM signal to use for an Angle of Arrival calculation?  I am using GNURadio and gr-aoa (https://github.com/MarcinWachowiak/gr-aoa)...

BPSK BW Requirement

Started by maxplus 6 months ago9 replieslatest reply 6 months ago261 views
I captured a BPSK waveform at RF on a spectrum analyser.  I need to determine the 99% bandwidth.  I have a CSV plot. Does anyone knows how to determine 99% BW...
If you haven't registered for the 2023 DSP Online Conference yet, doing so in the next couple of days could save you 50% on the already very low registration fee.Make...

Stereo to complex sample

Started by PiotrGrochowski 6 months ago5 replieslatest reply 6 months ago212 views
A fast fourier transform works in complex numbers, and each sine or cosine wave is a composition of two complex waves. For instance the two complex waves (1, i,...

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