function?Z=Rayfadsim（FdTsNs）
%------------------------------------------------------------------------------------
%?This?function?can?be?used?to?generate?multiple?uncorrelated?Rayleigh?
%?channel?fading?waveforms?with?accurate?second-order?statistics?compared
%?with?those?of?Clark‘s?reference?model.
%
%???Fd:?maximum?Doppler?frequency?
%???Ts:?sampling?period
%???Ns:?number?of?samples
%???Z:?（1Ns）?complex?fading?vector?with?unit?variancei.e.R_{ZZ}（\tau）=J_0（2\pi?Fd?\tau）.
%??
%???Reference:
%???This?simulator?is?built?based?on?the?following?paper:
%???Yahong?R.Zheng?and?Chengshan?Xiao“Improved?models?for?the?generation?of?multiple
%???uncorrelated?Rayleigh?fading?waveform“?IEEE?communications?Lettersvol.6June?2002
%
%???There?are?many?ways?to?implement?the?16?models?provided?by?Zheng?and?Xiao.This?one
%???is?only?an?example?and?it?is?good?for?generating?long?sequence?of?the?fading?with
%???limited?computer?memory.?Howeverthis?example?is?not?the?most?computationally?efficient
%???one?due?to?the?“for-loop“?fact?in?Matlab.To?remove?the?“for-loop“?will?need?more
%???computer?memories.
%------------------------------------------------------------------------------------
%---[set?up?fading?channel?parameters]--------------------------------------------
M=16;N=4*M;
dop_gain=sqrt（1/M）*ones（1M）;?%?This?gain?differs?sqrt（2）
??????????????????????????????%?from?the?paper?to?get?Var（Z）=1.
theta=（2*rand-1）*pi;
doppler=Fd*cos（2*pi/N*[1:M]+theta/N-pi/N）;
phi=（2*rand（M1）-1）*pi;
varphi=（2*rand（M1）-1）*pi;
state=zeros（M1）;
dop_update=（2*pi*doppler*Ts）.‘;
%---[generate?fading?channel?samples]------------------------------------------------
Z=zeros（1Ns）;
for?（k=1:Ns）
????Z（k）=dop_gain*[cos（state+phi）+i*sin（state+varphi）];
????state=dop_update+state;
end

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

?????文件???????3634??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter2\bpskev.m

?????文件????????658??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter2\comb.m

?????文件????????741??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter2\delay.m

?????文件????????671??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter2\disper.m

?????文件???????2166??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter2\fade.m

?????文件????????410??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter2\main.m

?????文件????????370??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter2\mvalue.m

?????文件???????3726??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter2\README-Chap2.txt

?????文件???????1742??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter2\sefade.m

?????文件???????2753??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter3\bpsk.m

?????文件???????4484??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter3\bpsk_fading.m

?????文件????????658??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter3\comb.m

?????文件????????562??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter3\compconv.m

?????文件????????684??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter3\compoversamp.m

?????文件????????743??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter3\delay.m

?????文件???????2167??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter3\fade.m

?????文件???????1052??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter3\gaussf.m

?????文件???????3387??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter3\gmsk.m

?????文件???????5109??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter3\gmsk_fading.m

?????文件???????1652??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter3\hrollfcoef.m

?????文件???????2933??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter3\msk.m

?????文件???????2967??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter3\msk2.m

?????文件???????4691??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter3\msk2_fading.m

?????文件???????4657??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter3\msk_fading.m

?????文件???????3182??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter3\oqpsk.m

?????文件???????4790??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter3\oqpsk_fading.m

?????文件????????497??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter3\oversamp.m

?????文件????????507??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter3\oversamp2.m

?????文件???????2780??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter3\qam16.m

?????文件???????4592??2005-05-29?19:16??simulation_and_software_radio_for_mobile_communications（Program）\Chapter3\qam16_fading.m

............此處省略80個(gè)文件信息