Forums

Difference between fft and pspectrum in Matlab

Started by mk2022 4 months ago3 replieslatest reply 4 months ago207 views
Hello!What is difference between using the fft() or pspectrum() command in Matlab on a time-series signal? My understanding is that the fft command computes the...

Soft-output Hamming decoder

Started by cooltafel 2 years ago1 replylatest reply 2 years ago130 views
Hello, I am implementing an SISO Hamming decoder in Matlab for (4,7) and (4,8) Hamming. The soft-input is coming from a soft demodulator, and the soft values are...

Algorithm testing via simulation in Scilab/Xcos

Started by steven01 2 years ago11 replieslatest reply 2 years ago399 views
Hello,I have been developing a library of control blocks (PID controller, various filters etc.) in C programming language. My goal is to have basic building stones...

Help on Noise Correlation Matrix

Started by M_313 4 years ago10 replieslatest reply 4 years ago297 views
I was trying to create a Noise Cross Correlation Matrix in Matlab by using the following code:N = 100; % Number of Samplesr1 = rand(1,N) + 1i*rand(1,N);r2 = rand(1,N)...

Overlap-add with window

Started by ctlee 4 years ago26 replieslatest reply 4 years ago1183 views
Hi all,Suppose I have an input signal \( x[n] \) of length \( N \), an FIR filter \( h[n] \) of length \( M \), and a window function \( w[n] \) of length \( N...

WLAN Demodulation in MATLAB

Started by cogwsn 5 years ago5 replieslatest reply 5 years ago244 views
I am using the WLAN Tool Box of #Matlab V2107b. A term named CSI for each data subcarrier is defined as CSI(i) = H(i) X conj(H(i)) + N(i)H(i) = channel estimate...

How to downconvert a Complex RF signal in Matlab?

Started by M_313 5 years ago14 replieslatest reply 5 years ago2795 views
Hi All,I was trying to simulate a digital communication model with a complex rayleigh fading channel in Matlab.The Data is BPSK modulated and is multiplied with...

Help on Demodulating an 8-PSK Signal

Started by M_313 5 years ago21 replieslatest reply 5 years ago832 views
Hi,I am trying to simulate an 8-PSK communication model in Matlab with real sequence. I have generated the tx signal as shown in the attached figure using 8 different...

Choice between Scilab and Python + numpy

Started by johnpote 5 years ago7 replieslatest reply 5 years ago4560 views
Hi everyone,I have a small bit of DSP to do related to work which has given me the oportunity to refresh prior DSP learning and expand it. I want to do this at home...

#Matlab rcosfir function

Started by bogfrog 6 years ago4 replieslatest reply 6 years ago749 views
figure; plot(rcosfir(.2, 3, 12, 1/9600, 'sqrt') - rcosfir(.2, 3, 12, 1, 'sqrt'))The difference is negligible. Why does the 'T' parameter (symbol period) seem to...

Please login (on the right) if you already have an account on this platform.

Otherwise, please use this form to register (free) an join one of the largest online community for Electrical/Embedded/DSP/FPGA/ML engineers: