C code simulation of DSP fixed-point operations with overflow and saturation

Started by jbrower 1 year ago9 replieslatest reply 1 year ago268 views
All-Does anyone have a link to old Texas Inst C code that simulated what their fixed-point DSPs did with overflow and saturation with arithmetic operations (add,...

Simulating multipath fading channel in Python

Started by roblkc3 1 year ago2 replieslatest reply 1 year ago423 views
Hello!I'm trying to figure out how to simulate a multipath fading channel (I'd like to have both a Rayleigh and a Rician channel, no Doppler to simplify things)...

Design low pass filter and decimation stages, how to?

Started by duemilaventivalvole 1 year ago1 replylatest reply 1 year ago249 views
Hi to all!I usually see 24-bit digitizers giving output sample rate at 50, 100, 200 samples per second, selectable by user.Taking a look to code I can see input...

Quantizing the feedback coefficient in the Goertzel algorithm

Started by gretzteam 1 year ago2 replieslatest reply 1 year ago182 views
The value of the feedback coefficient in the Goertzel algorithm it given by:c = 2*cos( 2*pi*k/N); where k is the bin number and N is the number of points.Here...

Effect of decimation, tuning (mixing) on phase noise

Started by xxn5ac 1 year ago9 replieslatest reply 1 year ago232 views
If I build an analog receiver using a DDS where the DDS is my local oscillator (LO), based on a reference oscillator with phase noise ℒ(n), as I decrease the...

Adding 45 degrees phase shift to a FIR bandpass

Started by wolf22 8 years ago15 replieslatest reply 1 year ago2218 views
Dear sirs, I have a question regarding the calculation of filter taps for a FIR bandpass filter with additional phase shift of approx. 45 degrees. Background: shortwave...

Correlated phase noise

Started by krishk24 1 year ago4 replieslatest reply 1 year ago218 views
I am trying to find a mathematical model to understand the correlated phase noise. In the link https://www.markimicrowave.com/blog/does-a-mixer-add-phase-noise/ ...

Is there any DAC math model around?

Started by kaz 1 year ago18 replieslatest reply 1 year ago261 views
Hi All,I assume Matlab and other math tools do not have a dedicated function to model DAC or ADC.I will try model DAC in digital domain:- generate a clean single...

FFT Interpolation

Started by MrColly 5 years ago26 replieslatest reply 1 year ago1425 views
I am having difficulties accepting the validity of FFT interpolation / time domain zero padding. When a section of time data of length T is selected from which...

Sampling Rate conversion with arbitrary and variable ratios

Started by javiergal 1 year ago14 replieslatest reply 1 year ago672 views
Hi Folks,  I would like to ask you about a non-very common topic... Arbitrary Ratio Sampling Rate conversion... With this, I want to refer to resampling of...

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: