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Forums Update, Tips and Tricks - Please Read!

Started by stephaneb 7 years ago14 replieslatest reply 3 months ago2672 views
It's been a few months since the launch of the new forums.  Here are a few thoughts. The thumbsup and beer buttons    If there is one thing that could have a...

CIC implement question?

Started by HerbertLu 11 months ago11 replieslatest reply 9 hours ago264 views
Hi Sir,I want to use sigma-delta modulator and FPGA to implement digital power control, and I am studying the Understanding Digital Signal Processing CH13.24, and...

IIR filters with FSK signals

Started by alx8kv 5 days ago9 replieslatest reply 16 hours ago121 views
Hello, everyone!I wonder, is it incorrect to use IIR filters for NRZ FSK signals? As I understand, IIR filter comes with a frequency-dependent delay and introduces...

short prach table (5G standards)

Started by kaz 6 days ago1 replylatest reply 5 days ago83 views
Hi All,I am struggling to interpret a table of 5G prach, page 48  https://www.etsi.org/deliver/etsi_ts/138200_138299...For example format A1 has three entries...

Variable IIR-Filter Coefficient calculation in frequency domain

Started by Nordmann 1 month ago5 replieslatest reply 3 weeks ago188 views
Hello,Currently im evaluating the usefulness of frequency domain filtering in FPGA for one of our projects. Im stuck with a problem that my limited knowledge of...

Modify a FIR filter in the frequency domain a then accomplish IFFT

Started by Swift80 1 month ago8 replieslatest reply 3 weeks ago167 views
Hallo,I would like to design a custom made FIR filter. I would start from an ordinary LP FIR filter designed by means of fdatool, for instance, and then modify the...

bandpass filter from summed lightly-damped transfer functions

Started by jekain314 4 weeks ago2 replieslatest reply 4 weeks ago104 views
I would like to make a bandpass filter for an SDR project by passing the signal through two (or more) transfer functions in parallel. Each transfer function uses...

filtering using FFT/iFFT

Started by kaz 1 month ago24 replieslatest reply 1 month ago299 views
Hi All,It is common knowledge that FFT followed by iFFT is an alternative for time domain convolution. However, I read many articles explaining this method on the...

Double sideband

Started by openshort 1 month ago4 replieslatest reply 1 month ago167 views
i am trying to understand a problem that i believe i have with my DAC setup. I am taking a tone from a RF signal generator and capturing it using a 9002 transceiver...

A basic DSP question

Started by tomb18 1 month ago7 replieslatest reply 1 month ago260 views
I am writing software to collect data from several different Software defined radios.  Typically they provide a packet of data that contains Real and Imaginary...

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