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Forums Update, Tips and Tricks - Please Read!

Started by stephaneb 8 years ago14 replieslatest reply 5 days ago2984 views
It's been a few months since the launch of the new forums.  Here are a few thoughts. The thumbsup and beer buttons    If there is one thing that could have a...

Issues regarding the implementation of integrator in GMSK modulator

Started by Souparnika512 3 months ago11 replieslatest reply 11 hours ago141 views
I'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...

FPGA dev kit

Started by Robert Wolfe 7 days ago4 replieslatest reply 7 days ago198 views
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 bigalnz 2 weeks ago3 replieslatest reply 2 weeks ago117 views
I 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 gretzteam 2 years ago3 replieslatest reply 2 weeks ago234 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...

Active noise cancellation(ANC) in headphones

Started by andrewstanfordjason 3 weeks ago13 replieslatest reply 2 weeks ago185 views
Hello, 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...

Signal level for OFDM

Started by jekain314 3 weeks ago18 replieslatest reply 3 weeks ago150 views
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 VasantJoseph 1 month ago1 replylatest reply 1 month ago137 views
I 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 VasantJoseph 1 month ago5 replieslatest reply 1 month ago160 views
I 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....

Does beam forming apply to Uplink MIMO ?

Started by kaz 2 months ago7 replieslatest reply 1 month ago129 views
Hi,I posted this on some communication forums but without success.There is plenty talk about beam forming (e.g. 4G, 5G ...etc) in the context of downlink (base...

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