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
%
%??This?program?is?free?software;?you?can?redistribute?it?and/or?modify
%??it?under?the?terms?of?the?GNU?General?Public?License?as?published?by
%??the?Free?Software?Foundation;?either?version?2?of?the?License?or
%??（at?your?option）?any?later?version.
%
%??This?program?is?distributed?in?the?hope?that?it?will?be?useful
%??but?WITHOUT?ANY?WARRANTY;?without?even?the?implied?warranty?of
%??MERCHANTABILITY?or?FITNESS?FOR?A?PARTICULAR?PURPOSE.??See?the
%??GNU?General?Public?License?for?more?details.
%
%??You?should?have?received?a?copy?of?the?GNU?General?Public?License
%??along?with?this?program;?if?not?write?to?the?Free?Software
%??Foundation?Inc.?51?Franklin?St?Fifth?Floor?Boston?MA??02110-1301??USA

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????時間???名稱
-----------?---------??----------?-----??----

?????文件???????2409??2005-10-13?16:14??TFTB\altes.m

?????文件???????2884??2005-10-13?16:14??TFTB\ambifunb.m

?????文件???????5455??2005-10-13?16:14??TFTB\ambifuwb.m

?????文件???????1620??2005-10-13?16:14??TFTB\amexpo1s.m

?????文件???????1628??2005-10-13?16:14??TFTB\amexpo2s.m

?????文件???????1654??2005-10-13?16:14??TFTB\amgauss.m

?????文件???????1601??2005-10-13?16:14??TFTB\amrect.m

?????文件???????1634??2005-10-13?16:14??TFTB\amtriang.m

?????文件???????1971??2005-10-13?16:14??TFTB\anaask.m

?????文件???????2060??2005-10-13?16:14??TFTB\anabpsk.m

?????文件???????2100??2005-10-13?16:14??TFTB\anafsk.m

?????文件???????1397??2005-10-13?16:14??TFTB\anapulse.m

?????文件???????2217??2005-10-13?16:14??TFTB\anaqpsk.m

?????文件???????1878??2005-10-13?16:14??TFTB\anasing.m

?????文件???????1390??2005-10-13?16:14??TFTB\anastep.m

?????文件???????5976??2005-10-13?16:14??TFTB\atoms.m

?????文件???????8126??2005-10-13?16:14??TFTB\Contents.m

?????文件???????3805??2005-10-13?16:14??TFTB\contwtgn.m

?????文件???????2688??2005-10-13?16:14??TFTB\contwtgnmir.m

?????文件???????2242??2005-10-13?16:14??TFTB\correlmx.m

?????文件???????5573??2008-02-15?15:38??TFTB\CVS\Entries

?????文件?????????12??2008-02-15?15:38??TFTB\CVS\Repository

?????文件?????????57??2008-02-15?15:38??TFTB\CVS\Root

?????文件???????1478??2005-10-13?16:14??TFTB\d2statio.m

?????文件???????1392??2005-10-13?16:14??TFTB\disprog.m

?????文件???????1134??2005-10-13?16:14??TFTB\divider.m

?????文件???????2430??2005-10-13?16:14??TFTB\dopnoise.m

?????文件???????2680??2005-10-13?16:14??TFTB\doppler.m

?????文件???????1315??2005-10-13?16:14??TFTB\dwindow.m

?????文件???????1878??2005-10-13?16:14??TFTB\fmconst.m

............此處省略111個文件信息