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Good site for distance Learning

Started by dcomer 1 year ago2 replieslatest reply 3 weeks ago247 views
Many, like myself, are constantly refreshing their grey matter, after long and distinguished (well long to be sure) careers. The only positive outcome of the COVID-19...
As you may know, the DSP Online Conference is an annual event that brings together experts, practitioners, and learners in the field of digital signal processing....

Help identify filter type

Started by Vinzz 2 months ago6 replieslatest reply 2 months ago156 views
I have a software filter that multiplies the input signal with a sine and cosine wave (I,Q). After multiply the complex output is square rooted to get the amplitude.What...

Pre-add for transposed FIR

Started by kaz 2 months ago16 replieslatest reply 2 months ago176 views
Hi All,FIR Pre-add (folded) structure is useful to save multipliers. I can see no problem with pre-add direct FIR structure as all that is needed is fold the data...

What is the relationship between z-transform and frequency response of the signal?

Started by runinrainy 2 months ago4 replieslatest reply 2 months ago228 views
Hello,I am trying to understand  intuitively the relationship of the zeros of the z-transform of a discrete time signal and it's frequency domain representation....

Keyboard Synthesizer

Started by Cedron 3 months ago7 replieslatest reply 3 months ago187 views
Yep, turn your computer keyboard into a music keyboard.  Almost four full octaves.https://forum.gambas.one/viewtopic.php?t=1651This is a project that implements...

Learning Data Transmission for HF Channel

Started by Mannai_Murali 3 months ago2 replieslatest reply 3 months ago146 views
I am trying to learn data transmission through HF Channel for various multi path and fading conditions.I will be designing and coding for simulation.I am planning...

An Online Mathematics Reference Book

Started by Rick Lyons 6 months ago17 replieslatest reply 3 months ago546 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 3 months ago2 replieslatest reply 3 months ago160 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 4 months ago9 replieslatest reply 4 months ago198 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()....

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