%spectrum?spread?and?modulation
Rb=100000;%100kb/s
Rc=Rb*15;%1.5Mb/s?chip?rate
Fc=Rc*2;%3M/s?carrier?frequence
W=Rc;%band?width
Fs=Fc*10;
SpB=Fs/Rb;
%x=floor（rand（41）*2）;
N=1000;
%x=[1;1;0;1];
x=floor（rand（1N）*2）;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
x_1=x*2-1;
%PN=floor（rand（115）*2）;
PN=[1?0?0?1?10?1?1?1?01?0?0?0?1];
PN_1=PN*2-1;
[PN_2x_2]=meshgrid（PN_1x_1）;
x_spread=x_2.*PN_2;
[h?w]=size（x_spread）;
x_t=reshape（x_spread‘h*w1）;%chips
sample=1:Fs/Rc;
[sample1?x_tl]=meshgrid（samplex_t）;%對(duì)x_t進(jìn)行采樣得到的采樣點(diǎn)
x_tls=reshape（x_tl‘1h*w*Fs/Rc）;%采樣點(diǎn)的序列
t=1/Fs:1/Fs:1/Rb*N;
%modulate
tc=1/Fs:1/Fs:1/Rc;
ftc=cos（2*pi*Fc*tc）;
[ftc_1?x_t4]=meshgrid（ftcx_t）;
xt_modu=ftc_1.*x_tl;
xt_modu_l=reshape（xt_modu‘1h*w*Fs/Rc）;
[F_m?f_m]=gen_spectrum（xt_m

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件???????1951??2009-01-11?14:28??rake_receiver.m

?????文件????????114??2008-12-26?23:49??rayleigh.m

?????文件????????254??2009-01-12?11:45??test.m

?????文件????????113??2008-12-28?00:21??ver_copy.m

?????文件????????974??2009-01-11?14:22??cdma_test.m

?????文件???????2179??2009-01-12?11:44??chnnel_test.m

?????文件????????171??2008-12-23?02:30??gen_spectrum.m

?????文件????????112??2008-12-28?00:19??hor_copy.m

-----------?---------??----------?-----??----

?????????????????5868????????????????????8