function?acqResults?=?acquisition（longSignal?settings）
%Function?performs?cold?start?acquisition?on?the?collected?“data“.?It
%searches?for?GPS?signals?of?all?satellites?which?are?listed?in?field
%“acqSatelliteList“?in?the?settings?structure.?Function?saves?code?phase
%and?frequency?of?the?detected?signals?in?the?“acqResults“?structure.
%
%acqResults?=?acquisition（longSignal?settings）
%
%???Inputs:
%???????longSignal????-?11?ms?of?raw?signal?from?the?front-end?
%???????settings??????-?Receiver?settings.?Provides?information?about
%???????????????????????sampling?and?intermediate?frequencies?and?other
%???????????????????????parameters?including?the?list?of?the?satellites?to
%???????????????????????be?acquired.
%???Outputs:
%???????acqResults????-?Function?saves?code?phases?and?frequencies?of?the?
%???????????????????????detected?signals?in?the?“acqResults“?structure.?The
%???????????????????????field?“carrFreq“?is?set?to?0?if?the?signal?is?not
%???????????????????????detected?for?the?given?PRN?number.?
?
%--------------------------------------------------------------------------
%???????????????????????????SoftGNSS?v3.0
%?
%?Copyright?（C）?Darius?Plausinaitis?and?Dennis?M.?Akos
%?Written?by?Darius?Plausinaitis?and?Dennis?M.?Akos
%?based?on?Peter?Rinder?and?Nicolaj?Bertelsen
%--------------------------------------------------------------------------
%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?Street?Fifth?Floor?Boston?MA??02110-1301
%USA.
%--------------------------------------------------------------------------

%CVS?record:
%$Id:?acquisition.mv?1.1.2.12?2006/08/14?12:08:03?dpl?Exp?$

%%?Initialization?=========================================================

%?Find?number?of?samples?per?spreading?code
samplesPerCode?=?round（settings.samplingFreq?/?...
????????????????????????（settings.codeFreqBasis?/?settings.codeLength））;

%?Create?two?1msec?vectors?of?data?to?correlate?with?and?one?with?zero?DC
signal1?=?longSignal（1?:?samplesPerCode）;
signal2?=?longSignal（samplesPerCode+1?:?2*samplesPerCode）;

signal0DC?=?longSignal?-?mean（longSignal）;?

%?Find?sampling?period
ts?=?1?/?settings.samplingFreq;

%?Find?phase?points?of?the?local?carrier?wave?
phasePoints?=?（0?:?（samplesPerCode-1））?*?2?*?pi?*?ts;

%?Number?of?the?frequency?bins?for?the?given?acquisition?band?（500Hz?steps）
numberOfFrqBin

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

?????文件???????9433??2006-08-14?20:08??粒子濾波工具箱（新）\acquisition.m

?????文件????????117??2012-03-28?14:18??粒子濾波工具箱（新）\amplitude.m

?????文件??????18730??2012-08-26?21:43??粒子濾波工具箱（新）\C.mat

?????文件?????149351??2012-03-23?22:13??粒子濾波工具箱（新）\correlater.mat

?????文件????????810??2012-03-28?22:35??粒子濾波工具箱（新）\correlatorsampling.asv

?????文件????????810??2012-03-28?22:37??粒子濾波工具箱（新）\correlatorsampling.m

?????文件??????33532??2012-07-04?16:42??粒子濾波工具箱（新）\delay.mat

?????文件???????3559??2006-08-14?19:38??粒子濾波工具箱（新）\generateCAcode.m

?????文件???????1033??2012-07-16?21:50??粒子濾波工具箱（新）\generateSignal.asv

?????文件????????967??2012-07-19?11:35??粒子濾波工具箱（新）\generateSignal.m

?????文件???????1172??2012-03-28?19:23??粒子濾波工具箱（新）\generate_correlator_array.asv

?????文件???????1163??2012-03-28?22:32??粒子濾波工具箱（新）\generate_correlator_array.m

?????文件???????3238??2012-03-23?15:52??粒子濾波工具箱（新）\init.m

?????文件???????5188??2012-07-16?21:10??粒子濾波工具箱（新）\initSettings.asv

?????文件???????5185??2012-07-23?10:23??粒子濾波工具箱（新）\initSettings.m

?????文件???????3281??2006-08-14?19:38??粒子濾波工具箱（新）\makeCaTable.m

?????文件???????6727??2012-08-26?20:39??粒子濾波工具箱（新）\new_particle_filter.asv

?????文件???????6913??2012-08-26?21:11??粒子濾波工具箱（新）\new_particle_filter.m

?????文件???????2917??2012-03-29?16:06??粒子濾波工具箱（新）\Particle.m

?????文件???????1006??2012-07-27?11:34??粒子濾波工具箱（新）\particle.mat

?????文件???????5541??2012-06-07?10:05??粒子濾波工具箱（新）\ParticleEx1.asv

?????文件???????5708??2012-06-07?17:01??粒子濾波工具箱（新）\ParticleEx1.m

?????文件???????3871??2012-03-28?11:05??粒子濾波工具箱（新）\Particlepart.asv

?????文件????????382??2012-07-27?11:34??粒子濾波工具箱（新）\Particles.mat

?????文件???????1019??2012-08-26?21:15??粒子濾波工具箱（新）\particle_35.mat

?????文件???????1004??2012-08-26?21:15??粒子濾波工具箱（新）\particle_48.mat

?????文件???????1016??2012-08-26?21:16??粒子濾波工具箱（新）\particle_75.mat

?????文件???????6639??2012-07-23?20:00??粒子濾波工具箱（新）\Particle_filter.asv

?????文件???????6625??2012-07-27?10:30??粒子濾波工具箱（新）\Particle_filter.m

?????文件???????4746??2012-03-23?20:57??粒子濾波工具箱（新）\postProcessing.asv

............此處省略37個文件信息