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Non-zero DFT components where zero is expected?

Started by bittersweet 3 years ago6 replieslatest reply 3 years ago284 views
This question has been asked before in dsp.stackexchange.com but I am reposting it here because very few questions are answered on that site.Edit: I got a few replies...

Compressed Sensing in DOA estimation

Started by Luca_R 3 years ago125 views
I'm trying to apply the compressed sensing theory (CoSaMP algorithm) to the DOA estimation in FMCW ULA (made of 48 elements). In the dechirped signals processing...

Utility of Bit Reversal as (I)FFT Function Parameter

Started by dszabo 3 years ago8 replieslatest reply 3 years ago432 views
As a follow up to a post I made on stackexchange [here][1].  In reference to the CMSIS/DSP Float32 FFT implementation, found [here][2], starting on line ```1162```....

LTE Uplink Timing

Started by Mannai_Murali 3 years ago3 replieslatest reply 3 years ago255 views
In LTE Uplink timing is calculated at Base Station using cross correlation of PRACH when UE joins the network.Can I use Demodulation reference signal of two successive...

fractional delay filter for non real time applications ?..

Started by alexsunny123 3 years ago6 replieslatest reply 3 years ago166 views
Hello,Hi guys,I would like to create fractional delay filter that can be applied on a signal for non real time applications. My approach is to apply a linear phase...

Power mapping from analogue domain(dBm) to digital domain

Started by kaz 3 years ago7 replieslatest reply 3 years ago733 views
Hi All, A standard says “-152dBm RF power should map to 1 LSB digital domain (at final stage). In our case by the digital domain I mean the following stages:...

The size of an FIR filter for PDM-PCM conversion

Started by caduk84 4 years ago15 replieslatest reply 3 years ago1522 views
I have been trying to understand how the conversion from PDM to PCM happens so that I could interface with a microphone. I have been doing some research online and...

Low-pass filter image data

Started by Tim Wescott 3 years ago11 replieslatest reply 3 years ago262 views
I have some image data that I want to smooth out, but I want it to smooth out nicely to the edges.Fourier transforms wouldn't do this without windowing -- if you...

Multi-filter Parks McClellan algorithm

Started by woodpecker 3 years ago13 replieslatest reply 3 years ago307 views
Hi everyone,  There are of course, many situations where the design of a single linear-phase FIR filter may be accomplished using the Parks McClellan algorithm....

Autocorrelation of OFDM Signal ?..

Started by alexsunny123 3 years ago3 replieslatest reply 3 years ago215 views
Hello,I have captured OFDM I-Q data at IF. I have down-converted to it to base-band and then simply performed autocorrleation. I was trying to find a clear peak...

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