DSPRelated.com
Forums

An Online Mathematics Reference Book

Started by Rick Lyons 8 months ago17 replieslatest reply 5 months ago557 views
Some of the "ol' timers" here may remember the valuable and popular book titled "CRC Standard Mathematical Tables" published by the Chemical Rubber Co., in Cleveland...

meaning of M(QN) notation

Started by jbrower 5 months ago2 replieslatest reply 5 months ago172 views
Hi all-Does anyone know what M(QN) notation means ? For example 15(Q16) ?I'm familiar with QN, QN.M, but not with a leading number followed by parens. I suspect...

arm_fir_decimate cycles

Started by ErcSic71 6 months ago9 replieslatest reply 6 months ago215 views
Hi All,I need to convert a (fixed point) stereo 16bit/32kHz stream into stereo 16bit/16kHz (on a Cortex M4). For this I have successfully used the CMSIS-DSP function arm_fir_decimate_q15()....

IFFT of Non causal signal?

Started by r13yadav 6 months ago3 replieslatest reply 6 months ago191 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 6 months ago18 replieslatest reply 6 months ago181 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 7 months ago258 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 10 months ago4 replieslatest reply 7 months ago241 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 7 months ago14 replieslatest reply 7 months ago254 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 8 months ago5 replieslatest reply 7 months ago322 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 8 months ago1 replylatest reply 8 months ago170 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)...

Please login (on the right) if you already have an account on this platform.

Otherwise, please use this form to register (free) an join one of the largest online community for Electrical/Embedded/DSP/FPGA/ML engineers: