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Simulating multipath fading channel in Python
Started by 1 year ago●2 replies●latest reply 1 year ago●418 viewsHello!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 1 year ago●1 reply●latest reply 1 year ago●248 viewsHi 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 1 year ago●2 replies●latest reply 1 year ago●181 viewsThe 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 1 year ago●9 replies●latest reply 1 year ago●232 viewsIf 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 8 years ago●15 replies●latest reply 1 year ago●2214 viewsDear 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...
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/
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Is there any DAC math model around?
Started by 1 year ago●18 replies●latest reply 1 year ago●259 viewsHi 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...
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 1 year ago●14 replies●latest reply 1 year ago●661 viewsHi 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...
ADXL1002 signal processing for condition monitoring application
Started by 1 year ago●11 replies●latest reply 1 year ago●233 viewsI am a fresher in the field of condition monitoring. I have been working on a condition monitoring project for rotating machines using ADXL1002 accelerometer. I...
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