function?[retval?s?errorb]?=?allan（datatauname）

%?Compute?the?Allan?deviation?for?a?set?of?time-domain?frequency?data
%?[RETVAL?S?ERRORB]?=?ALLAN（DATATAUNAME）
%?DATA?should?be?a?struct?and?have?the?following?fields:
%??DATA.freq????The?frequency?measurements?in?Hz
%??DATA.rate?or?DATA.time
%???????????????The?sampling?rate?in?Hertz?（DATA.rate）?or?a?timestamp?for
%???????????????each?measurement?in?seconds?（DATA.time）.?Computation?is
%???????????????shorter?when?the?rate?is?known?but?if?the?rate?is
%???????????????inaccurate?then?the?Allan?plot?will?be?skewed.
%???????????????DATA.rate?is?used?if?both?fields?are?present.
%???????????????If?DATA.rate?==?0?then?the?timestamps?are?used.
%?TAU?is?an?array?of?tau?values?for?computing?Allan?deviation.
%?NAME?is?a?label?that?is?added?to?the?plot?titles.
%
%?RETVAL?is?the?array?of?Allan?deviation?values?at?each?TAU.
%?S?is?an?optional?output?of?other?statistical?measures?of?the?data?（mean?std?etc）.
%?ERRORB?is?an?optional?output?containing?the?error?estimates?for?a?1-sigma
%???confidence?interval.?Error?bars?are?plotted?as?vertical?lines?at?each?point
%???（MATLAB-style?error?bars?cannot?be?used?due?to?a?known?bug?in?MATLAB?R14SP3）.
%
%?Example:
%
%?To?compute?the?Allan?deviation?for?the?data?in?the?variable?“l(fā)t“:
%?>>?lt
%?lt?=?
%?????freq:?[1x86400?double]
%?????rate:?0.50
%
%?Use:
%
%?>>?ad?=?allan（lt[1?10?100]‘lt?data‘）;
%
%?The?Allan?deviation?will?be?computed?and?plotted?at?tau?=?110100?seconds.
%??1-sigma?confidence?intervals?will?be?indicated?by?vertical?lines.
%
%?Notes:
%??No?pre-processing?of?the?data?is?performed.?
%??For?rate-based?data?AD?is?computed?only?for?tau?values?greater?than?the
%???minimum?time?between?samples?and?less?than?the?half?the?total?time.?For
%???time-stamped?data?only?tau?values?greater?than?the?maximum?gap?between
%???samples?and?less?than?half?the?total?time?are?used.
%??The?calculation?for?rate-based?data?is?*much*?faster?than?for?time-stamp
%???data.?You?may?wish?to?run?the?rate-based?calculation?first?then
%???compare?with?time-stamp-based.?Often?the?differences?are?insignificant.
%??To?plot?the?“tau?bins“?uncomment?the?code?at?the?beginning?of?the
%???“plot“?section?（last?section?of?code?search?for?“TAUBIN“）.
%??This?function?has?been?validated?using?the?test?data?from?NBS?Monograph
%???140?and?the?1000-point?test?data?set?given?by?Riley?[1].
%???If?you?have?other?validation?results?please?let?me?know!
%
%?For?more?information?see:
%?[1]?W.?J.?Riley?“Addendum?to?a?test?suite?for?the?calculation?of?time?domain
%??frequency?stability“?presented?at?IEEE?Frequency?Control?Symposium
%??1996.
%?Available?on?the?web:
%??http://www.ieee-uffc.org/freqcontrol/paper1ht.html
%
%
%?M.A.?Hopcroft
%??????hopcroft?at?mems?stanford?edu
%
%
%?MH?APR2008
%?v1.61??improve?error?handling?plotting
%????????fix?bug?in?regular?data?calc?for?high-rate?data
%????????fix?bug?in?timestamp?data?calc?for?large?starting?gap
%?????????（thanks?to?C.?B.?Ruiz?for?identifyi

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????文件????????1788??2018-05-14?19:52??allen1\allan_sim_3.m
?????文件?????????846??2018-05-14?19:52??allen1\allantrend.m
?????文件???????14112??2018-05-14?19:52??allen1\allan-w.m
?????文件????????1282??2018-05-14?19:52??allen1\allen.m
?????文件????????1459??2018-05-14?19:52??allen1\allen2.m
?????文件?????????443??2018-05-14?19:52??allen1\D.m
?????文件??????644654??2018-05-14?19:52??allen1\data.mat
?????文件?????1440162??2018-05-14?19:52??allen1\data.txt
?????文件?????????130??2018-05-14?19:52??allen1\dataavg.m
?????文件??????????85??2018-05-14?19:52??allen1\data-avg.m
?????文件?????????616??2018-05-14?19:52??allen1\datacraet.m
?????文件?????????247??2018-05-14?19:52??allen1\k.mat
?????文件?????????350??2018-05-14?19:52??allen1\k.txt
?????文件?????????145??2018-05-14?19:52??allen1\kCreat.m
?????文件?????????222??2018-05-14?19:52??allen1\nihe.asv
?????文件?????????224??2018-05-14?19:52??allen1\nihe.m
?????文件??????????34??2018-05-14?19:52??allen1\t.m
?????文件???????90000??2018-05-14?19:52??allen1\xacc.txt
?????文件???????90000??2018-05-14?19:52??allen1\xraw.txt
?????文件???????90132??2018-05-14?19:52??allen1\yacc.txt
?????文件???????90000??2018-05-14?19:52??allen1\yraw.txt
?????文件???????90000??2018-05-14?19:52??allen1\zacc.txt
?????文件???????90000??2018-05-14?19:52??allen1\zraw.txt