Gain Control

Started by lmoshe 1 month ago13 replieslatest reply 1 month ago94 views
Hi,I'm working on RADAR systems and I have a question about gain control.In our system we have LNA and IF amplifier controlled by RX gain register.I put a single...

PLL - Phase detector: Why sin(phi1-phi2) does not make the error signal 0 when phi1=phi2=0?

Started by nbtech 1 month ago8 replieslatest reply 1 month ago79 views
Hello all,In the tutorial on PLL at the following link, on page 5, in the first line below equation (2), the author states that "If phase difference is 0 degrees...

SO-CFAR MIMO Radar - threshold factor derivation.

Started by SenSen 1 month ago1 replylatest reply 1 month ago56 views
Given the required Probability of False Alarm(Pfa) and the number of training cells(N) of SO-CFAR, wondered what would be the correct method for threshold factor derivation...

DSP Textbook Available Online

Started by Rick Lyons 2 months ago3 replieslatest reply 1 month ago253 views
Purdue University's Prof. Michael Zoltowski is teaching a DSP class (ECE538 Digital Signal Processing I) using the 4th edition of the Proakis & Manolakis DSP...

Learning FPGA

Started by stephaneb 4 months ago18 replieslatest reply 1 month ago1124 views
A few months ago, this community tackled the first FPGA FAQ titled When (and why) is it a good idea to use an FPGA in your embedded system design?.  Your contributions...

Pink noise generator on FPGA

Started by keffe 1 month ago3 replieslatest reply 1 month ago111 views
Hello! I want to implement a pink noise generator for audio frequencies on an FPGA, using VHDL.However, i found that not much information on this, is to find. I...

Modulator output power level

Started by nbtech 1 month ago8 replieslatest reply 1 month ago73 views
Hello all,For a given frequency band e.g. L-band, how is the modulator output power level selected? What decides that the output power level shall be e.g. -40dBm...

OFDM Cyclic Prefix Understanding

Started by cogwsn 1 month ago11 replieslatest reply 1 month ago73 views
I am going thru wlanOFDMDemodulate.m (script used by MATLAB to demodulate 802.11g OFDM symbols)wlanOFDMDemodulate(x, cfgOFDM, ofdmSymOffset)x is the array of received...

What's the difference between a spectrogram of the Doppler domain and the Doppler Spectral Density?

Started by ReachRF 2 months ago2 replieslatest reply 1 month ago83 views
Hello colleagues,   Background: I've performed some measurements of Doppler shift in a mobile wireless channel with both transmitter (continuous wave) and receiver...

Octave BandPass Filter on Audio Wav Files

Started by dingoegret 2 months ago11 replieslatest reply 1 month ago104 views
I need to somehow do an octave bandpass filter on some audio wav files. The reason for doing this is afterwards I need to get the envelope of the bands and do...

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