Low-pass filter image data

Started by Tim Wescott 2 years ago11 replieslatest reply 2 years ago169 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 2 years ago13 replieslatest reply 2 years ago178 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 2 years ago3 replieslatest reply 2 years ago178 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...

hardware FFT coefficients .vs. np.numpy.fft.rfft

Started by Justinm 2 years ago13 replieslatest reply 2 years ago369 views
We have a FPGA system which takes input from an ADC and calculates a FFT. The system identifies the location of our frequencies of interest and sends the coefficients...

PMCW Radar for cars

Started by adaptivefilter 2 years ago5 replieslatest reply 2 years ago794 views
Hello.Does anybody working in the automotive radar sector know and can tel me if Phase Modulated Continuous Wave Radar is gaining popularity for mm-wave car radars...

LTE delay measurement resolution?

Started by kaz 2 years ago5 replieslatest reply 2 years ago120 views
Hi All, I am trying to model a well-known delay measurement algorithm in LTE Prach. Let me put it in simpler terms. The mobile user (UE) generates a signal of length...

Communication between ARM and DSP

Started by alvin6 2 years ago9 replieslatest reply 2 years ago570 views
Hi all,I am a newbie to DSP. Now our company wants to develop a product combine ARM & DSP. At the beginning, we were thinking about to use TI's am57x or keystone series...
I am on chapter 3. On page 77 the equation approximating the amplitude response of DFT for real  cosine input with k cycles over the sampled input time sequence...

PLL fun : some personnal work that I'd like to share

Started by pylessard 2 years ago10 replieslatest reply 2 years ago199 views
A year ago, I've started working on some interactive apps to help visualize some engineering concepts that may be difficult to grasp for a beginner. I thought this...

Purity > 1?

Started by Aaron45 2 years ago26 replieslatest reply 2 years ago171 views
I have an application where I am computing a purity value, because I'm interested in how much noise is present.  Since I don't have a full spectrum measurement...

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