%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%?this?program?demos?the?GPS?signal?tracking?of?2nd?order?PLL
%
%?Parameters?description:?
%
%??????Bn????-?equivalent?noise?bandwidth
%??????jerk??-?Initial?frequency?jerk?setting
%??????acc???-?Initial?frequency?acceleration?setting
%??????freq??-?INitial?frequency?setting?
%??????phase?-?Initial?phase?setting
%??????cn0???-?carrier?noise?ration?in?dB/Hz
%??????time??-?simulation?time?length?in?ms
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

function?[]?=?track_2nd（Bn?jerk?acc?freqphasecn0?time）

ms?=?0.001;?
numMsInT1?=?1;
t1?=?numMsInT1?*?ms;??%?s
numT1InPdi?=?1;
pdi?=?numT1InPdi?*?t1;??%?s
%?cno?=?40;????%?dBHz
pi2?=?2?*?pi;
%?noise?variance?in?I?and?Q?is?1
amp?=?sqrt（2）*（10

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

?????文件???????3809??2011-08-30?15:46??Tracking\track_2nd.m

?????文件???????4303??2011-03-27?14:34??Tracking\track_3rd.m

?????目錄??????????0??2011-10-12?18:36??Tracking

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

?????????????????8112????????????????????3