channel_param.m

来自「wcdma_simulation_simulink用matlab simulin」· M 代码 · 共 64 行

%
%
% FUNCTION:     channel_parameters      
% AUTHOR:       Maarit Melvasalo
% DATE:         June 21, 1999
%
% DESC:         This document contains channel parameters given
%               by ITU for vehicular test environt. see e.g. 
%               ARIB DOCUMENT page 20.
%
%               This channel is constant with one channel impulse
% NOTE:         
%        
%
% HISTORY:      June 18,1999 Maarit Melvasalo
%                   Comments added


R = 4096000;
chip_time = 1 / R
nano =10^(-9);

% 
% p. 20 Vehicular test environment 
% 
% Channel A
% Average power

A_hr = [ 0 -1 -9 -10 -15 -20];
A_HR = 10.^(A_hr./10);
A_HR = A_HR./sum(A_HR)


%
% Relative dealys ns

A_hd = [0 310 710 1090 1730 2510];

A_HD = A_hd ./chip_time.*nano;

A_HD = round(A_HD)


%****************************************
% Channel B
% Average power

B_hr =[ -2.5 0 -12.8 -10 -25.2 -16];
B_HR = 10.^(B_hr./10);
B_HR = B_HR./sum(B_HR)


%
% Relative dealys ns

B_hd = [0 300 8900 12900 17100 20000];


B_HD = B_hd ./chip_time.*nano; 

B_HD = round(B_HD)