function?x=altes（Nfminfmaxalpha）?;
%ALTES	Altes?signal?in?time?domain.
%	X=ALTES（NFMINFMAXALPHA）?generates?the?Altes?signal?in
%	the?time?domain.
%
%	N?????:?number?of?points?in?time???
%	FMIN??:?lower?frequency?bound?（value?of?the?hyperbolic
%	????????instantaneous?frequency?law?at?the?sample?N）?
%	????????in?normalized?frequency?????????????（default?:?.05）?
%	FMAX??:?upper?frequency?bound?（value?of?the?hyperbolic
%	????????instantaneous?frequency?law?at?the?first?sample）?
%	????????in?normalized?frequency?????????????（default?:?0.5）
%	ALPHA?:?attenuation?factor?of?the?envelope?（default?:?300）
%	X?????:?time?row?vector?containing?the?Altes?signal?samples.
%
%	Example:?
%	?x=altes（1280.10.45）;?plot（x）;
%
%	See?also?KLAUDER?ANASING?ANAPULSE?ANASTEP?DOPPLER.

%	P.?Goncalves?-?September?1995.
%	Copyright?（c）?1995?Rice?University
%
%	-------------------?CONFIDENTIAL?PROGRAM?--------------------?
%	This?program?can?not?be?used?without?the?authorization?of?its
%	author（s）.?For?any?comment?or?bug?report?please?send?e-mail?to?
%	f.auger@ieee.org?

if?（nargin?==?0）
?error?（?‘The?number?of?parameters?must?be?at?least?1.‘?）;
elseif?（nargin?==?1）
?fmin=0.05;?fmax=0.5;?alpha=300;
elseif?（nargin?==?2）
?fmax=0.5;?alpha=300;
elseif?（nargin?==?3）
?alpha=300?;
end;

if?（N?<=?0）
?error?（‘The?signal?length?N?must?be?strictly?positive‘?）;
elseif?（fmin?>?0.5）?|?（fmin??error?（?‘FMIN?must?be?in?]0??0.5]‘?）?;
elseif?（fmax?>?0.5）?|?（fmax??error?（?‘FMAX?must?be?between?0?and?0.5‘?）?;
elseif?（alpha?<=?1）
?error?（?‘ALPHA?must?be?>?1‘?）?;
else
?g?=?exp（（log（fmax/fmin））^2/（8*log（alpha）））?;
?nu0?=?sqrt（fmin*fmax）?;
?beta=sqrt（2*log（g）*log（alpha））;
?t0?=?N/（exp（beta）-exp（-beta））?;
?t1?=?t0*exp（-beta）;?t2?=?t0*exp（beta）?;
?b?=?-t0*nu0*g*log（g）?;
?t?=?linspace（t1t2N+1）?;?t?=?t（1:N）?;
?x?=?（exp（-（log（t./t0）.^2）/（2*log（g））））.*cos（2*pi*b*log（t./t0）/log（g））?;
?x?=?x.‘/norm（x）?;
end

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

?????文件???????1971??2000-10-27?15:59??Time_Frequency?Toolbox\altes.m

?????文件???????2331??2000-10-27?15:59??Time_Frequency?Toolbox\ambifunb.m

?????文件???????4990??2000-10-27?15:59??Time_Frequency?Toolbox\ambifuwb.m

?????文件???????1124??2000-10-27?15:59??Time_Frequency?Toolbox\amexpo1s.m

?????文件???????1132??2000-10-27?15:59??Time_Frequency?Toolbox\amexpo2s.m

?????文件???????1158??2000-10-27?15:59??Time_Frequency?Toolbox\amgauss.m

?????文件???????1105??2000-10-27?15:59??Time_Frequency?Toolbox\amrect.m

?????文件???????1138??2000-10-27?15:59??Time_Frequency?Toolbox\amtriang.m

?????文件???????1475??2000-10-27?15:59??Time_Frequency?Toolbox\anaask.m

?????文件???????1564??2000-10-27?15:59??Time_Frequency?Toolbox\anabpsk.m

?????文件???????1604??2000-10-27?15:59??Time_Frequency?Toolbox\anafsk.m

?????文件????????901??2000-10-27?15:59??Time_Frequency?Toolbox\anapulse.m

?????文件???????1601??2000-10-27?15:59??Time_Frequency?Toolbox\anaqpsk.m

?????文件???????1382??2000-10-27?15:59??Time_Frequency?Toolbox\anasing.m

?????文件????????905??2000-10-27?15:59??Time_Frequency?Toolbox\anastep.m

?????文件???????5491??2000-10-27?15:59??Time_Frequency?Toolbox\atoms.m

?????文件???????7707??2000-10-27?15:59??Time_Frequency?Toolbox\contents.m

?????文件????????766??2000-10-27?15:59??Time_Frequency?Toolbox\d2statio.m

?????文件????????896??2000-10-27?15:59??Time_Frequency?Toolbox\disprog.m

?????文件????????638??2000-10-27?15:59??Time_Frequency?Toolbox\divider.m

?????文件????????626??2000-10-27?16:00??Time_Frequency?Toolbox\divider.org

?????文件???????1934??2000-10-27?16:00??Time_Frequency?Toolbox\dopnoise.m

?????文件???????2254??2000-10-27?16:00??Time_Frequency?Toolbox\doppler.m

?????文件????????814??2000-10-27?16:00??Time_Frequency?Toolbox\dwindow.m

?????文件???????1446??2000-10-27?16:00??Time_Frequency?Toolbox\fmconst.m

?????文件???????2393??2000-10-27?16:00??Time_Frequency?Toolbox\fmhyp.m

?????文件???????1594??2000-10-27?16:00??Time_Frequency?Toolbox\fmlin.m

?????文件???????1308??2000-10-27?16:00??Time_Frequency?Toolbox\fmodany.m

?????文件???????2588??2000-10-27?16:00??Time_Frequency?Toolbox\fmpar.m

?????文件???????2498??2000-10-27?16:00??Time_Frequency?Toolbox\fmpower.m

............此處省略113個(gè)文件信息