function?[xx_debiasobjectivetimesdebias_startmses]=?...
????GPSR_Basic（yAtauvarargin）
%??
%?GPSR_Basic?version?5.0?December?4?2007
%
%?This?function?solves?the?convex?problem?
%?arg?min_x?=?0.5*||?y?-?A?x?||_2^2?+?tau?||?x?||_1
%?using?the?algorithm?GPSR-Basic?described?in?the?following?paper
%
%?“Gradient?Projection?for?Sparse?Reconstruction:?Application
%?to?Compressed?Sensing?and?Other?Inverse?Problems“
%?by?Mario?A.?T.?Figueiredo?Robert?D.?Nowak?Stephen?J.?Wright
%?Journal?of?Selected?Topics?on?Signal?Processing?December?2007
%?（to?appear）.
%
%?-----------------------------------------------------------------------
%?Copyright?（2007）:?Mario?Figueiredo?Robert?Nowak?Stephen?Wright
%?
%?GPSR?is?distributed?under?the?terms
%?of?the?GNU?General?Public?License?2.0.
%?
%?Permission?to?use?copy?modify?and?distribute?this?software?for
%?any?purpose?without?fee?is?hereby?granted?provided?that?this?entire
%?notice?is?included?in?all?copies?of?any?software?which?is?or?includes
%?a?copy?or?modification?of?this?software?and?in?all?copies?of?the
%?supporting?documentation?for?such?software.
%?This?software?is?being?provided?“as?is“?without?any?express?or
%?implied?warranty.??In?particular?the?authors?do?not?make?any
%?representation?or?warranty?of?any?kind?concerning?the?merchantability
%?of?this?software?or?its?fitness?for?any?particular?purpose.“
%?----------------------------------------------------------------------
%?
%?Please?check?for?the?latest?version?of?the?code?and?paper?at
%?www.lx.it.pt/~mtf/GPSR
%
%??=====?Required?inputs?=============
%
%??y:?1D?vector?or?2D?array?（image）?of?observations
%?????
%??A:?if?y?and?x?are?both?1D?vectors?A?can?be?a?
%?????k*n?（where?k?is?the?size?of?y?and?n?the?size?of?x）
%?????matrix?or?a?handle?to?a?function?that?computes
%?????products?of?the?form?A*v?for?some?vector?v.
%?????In?any?other?case?（if?y?and/or?x?are?2D?arrays）?
%?????A?has?to?be?passed?as?a?handle?to?a?function?which?computes?
%?????products?of?the?form?A*x;?another?handle?to?a?function?
%?????AT?which?computes?products?of?the?form?A‘*x?is?also?required?
%?????in?this?case.?The?size?of?x?is?determined?as?the?size
%?????of?the?result?of?applying?AT.
%
%??tau:?usually?a?non-negative?real?parameter?of?the?objective?
%???????function?（see?above）.?It?can?also?be?an?array?the?same?
%???????size?as?x?with?non-negative?entries;?in?this??case
%???????the?objective?function?weights?differently?each?element?
%???????of?x?that?is?it?becomes
%???????0.5*||?y?-?A?x?||_2^2?+?tau^T?*?abs（x）
%
%??=====?Optional?inputs?=============
%
%??
%??‘AT‘????=?function?handle?for?the?function?that?implements
%????????????the?multiplication?by?the?conjugate?of?A?when?A
%????????????is?a?function?handle.?If?A?is?an?array?AT?is?ignored.
%
%??‘StopCriterion‘?=?type?of?stopping?criterion?to?use
%????????????????????0?=?algorithm?stops?when?the?relative?
%????????????????????????change?in?the?number?of?non-zero?
%????????????????????????components?o

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????21922??2008-01-15?16:22??SRC\GPSR_Basic.m

?????文件???????4555??2010-07-14?14:01??SRC\SRC.m

?????目錄??????????0??2010-07-29?16:17??SRC

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

????????????????26477????????????????????3