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Started by 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 4 months ago●4 replies●latest reply 4 months ago●247 viewsHello,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....
Started by 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 5 months ago●2 replies●latest reply 5 months ago●149 viewsI 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 8 months ago●17 replies●latest reply 5 months ago●554 viewsSome 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...
Started by 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...
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()....
Started by 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 6 months ago●18 replies●latest reply 6 months ago●180 viewsI 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 3 years ago●7 replies●latest reply 6 months ago●252 viewsHello!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",...
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