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Using STO as a proxy for accurate CFO compensation
Started by 12 months ago●6 replies●latest reply 11 months ago●178 viewsHello!I have an OFDM-based system and I am trying to accurately estimate the Carrier Frequency Offset (CFO) and the Sampling Time Offset (STO).I use the "traditional"...
A question about peak detection for a transient (17ms) CW beep on channelized chunks (0.3 sec chunks) from a SDR.My current approach is to get the Power Spectral...
Issues regarding the implementation of integrator in GMSK modulator
Started by 1 year ago●11 replies●latest reply 12 months ago●268 viewsI'm trying to implement a GMSK modulator using simulink. Initially, I've passed the signal to a Gaussian filter, then it is passed to an integrator, but I'm not...
Hello,I've been wanting to get my feet wet in FPGA DSP, after many years strictly firmware (C, C++, assembly), including since a good deal of DSP seems to be migrating...
Setting prominence in signal.find_peaks
Started by 1 year ago●3 replies●latest reply 1 year ago●332 viewsI am rocessing a radio signals on a Rpi5 with a Software Defined Radio (SDR) in python and need to adaptively set the prominence parameter of scipy signal.find_peaks.The...
Quantizing the feedback coefficient in the Goertzel algorithm
Started by 3 years ago●3 replies●latest reply 1 year ago●275 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...
Active noise cancellation(ANC) in headphones
Started by 1 year ago●13 replies●latest reply 1 year ago●346 viewsHello, I am interested I understanding how ANC in headphones works. My high level understanding is that an external mic listens to the noise then a speaker within...
Started by Consider a 64-subcarrier OFDM signal with QPSK modulation and all 64 subcarriers have data. Each of the 64 subcarriers will have the same amplitude (assume 1.0)...
For CIC filter. Is Feedback or Feedforward integrator preferred ?
Started by 1 year ago●1 reply●latest reply 1 year ago●172 viewsI have been designing a CIC filter in python. For reference I had taken the matlab cic function dsp.CICDecimator to check if the filter I am designing is functioning...
Doubt regarding CIC filter implementation.
Started by 1 year ago●5 replies●latest reply 1 year ago●288 viewsI wrote a CIC filter design in Python using the below-given equations. I tried to check the design I have, comparing the output with an ideal Matlab CIC function....
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