Frequency Selective Channel Coefficients in MATLAB

4 次查看（过去 30 天）

S. David 2014-3-18

评论： S. David 2014-3-20

Hello all

How can I generate the following channel coefficients in MATLAB, where these coefficients correspond to a frequency selective channel:

f_m=sum_p h_p exp(-j*2*pi*fc*tau_p) g(mTs-tau_p), m=0,1,...,L-1

where g(t) is rectangular pulse of support duration Ts, and h_p, tau_p and fc are given.

Thanks in advance

Youssef Khmou 2014-3-18

编辑：Youssef Khmou 2014-3-18

you have to change the title so that the specialists in the field will answer, put as example " radiation pattern" ," collected signals"..

Youssef Khmou 2014-3-18

编辑：Youssef Khmou 2014-3-18

here is a start :

 Fs=800;
 fc=300; % Hz
 Ts=1/Fs;
 L=400;
 t=0:Ts:(L-1)*Ts;
 d=4; %  four signals per example,

tau is dependent on physical parameters, distance and coordinates, but i consider here a linear progressive phase, and the signals are sinusoidal :

 tau=(0:d-1);
 fm=0;
 for p=1:d
 fm=fm+exp(-j*2*pi*fc*tau(p))*sin(2*pi*t);
 end
 figure; plot(real(fm));

your assignment now is to replace the sin signals with the rectangular ones .

Youssef Khmou 2014-3-20

if the problem is solved, accept the answer.

S. David 2014-3-20

Thanks

在 Help Center 和 File Exchange 中查找有关 Test and Measurement 的更多信息

Find the treasures in MATLAB Central and discover how the community can help you!

Translated by