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Question
Shift result of fft of sinc at certain frequency
I have a sinc function in time domain and I would like to do its fft which should be a rect And then I want to shift this fft a...
presque 8 ans il y a | 1 réponse | 0
1
réponseQuestion
modulation of binary sequence
I would like to replace the bits of 1s and 0s with the signal made with different phase of 90 degrees if true % clear;...
presque 8 ans il y a | 1 réponse | 0
0
réponseQuestion
Adding noise to a channel
I need a code or function to add noise to a channel of band 10kHz to 15kHz as an exmple
presque 8 ans il y a | 1 réponse | 0
1
réponseQuestion
Generate wide band noise with no dc level
I'd like to have a code that can generate a wide-band noise signal at all frequencies from 8kHz to 12kHz so hat I can add noise ...
presque 8 ans il y a | 1 réponse | 0
0
réponseQuestion
scan a band for a signal and know the signal properties
I'd like to scan a certain band for example from 8kHz to 12kHz searching inside it for a signal and then extracting data about t...
presque 8 ans il y a | 1 réponse | 0
0
réponseQuestion
Time worked by signal before sweeping frequency
what is the function that makes my generated signal working for 2 seconds and then changing the frequency automatically to gener...
presque 8 ans il y a | 1 réponse | 0
0
réponseQuestion
usinf fft shift i need only to display the positive part of the spectrum
I would like to display only the positive part of the frequency domain if true % fs=1e5; %Sampling Frequency t=0:1/...
presque 8 ans il y a | 3 réponses | 0
3
réponsesQuestion
how to solve a Plotting FFT problem
I have this code for generating a signal and plotting it in time domain and frequency domain but the plot in the frequency domai...
presque 8 ans il y a | 1 réponse | 0
1
réponseQuestion
Scan a spectrum ,determine the frequency, signal properties
I'd like to make a code to scan a certain known spectrum (ex : 150 MHZ to 250 MHZ)?? How to determine frequency of signals it t...
presque 8 ans il y a | 1 réponse | 0
0
réponseQuestion
Design of FHSS transmitter and receiver
I would like to make a FHSS transmitter for BPSK as an example and I'm facing a problem how will I receive the sent signal C...
presque 8 ans il y a | 1 réponse | 0
