資源簡介
北斗二代接收機中的跟蹤程序,模塊有載波環(二階FLL,三階PLL),FLL輔助PLL,碼環是用二階DLL,再用載波環輔助碼環
代碼片段和文件信息
clc;
clear?all;
close?all;
format?long?g;
settings?=?setting_canshu();%設置環路運行參數
loop_para?=?loop_canshu_calculate(settings);%計算環路濾波器參數
code_table=GOLD_code();?%調用函數,產生偽隨機碼
fll_nco_adder?=?0;
carrier_nco_sum?=?0;
pll_nco_adder?=?0;
loop_count?=?0;
code_nco_sum?=?0;
code_nco_adder?=?0;
n_IQ?=?2;
n?=?3;
output_fll(2:3)?=?0;
output_filter_fll(1:3)?=?0;
output_filter_pll(1:3)?=?0;
output_pll(2:3)?=?0;
output_filter_ddll(1:3)?=?0;
pll_after_filter?=?0;
Tcoh?=?settings.Tcoh;
global?modulate_code_nco;??%信號源擴頻碼初相位
modulate_code_nco?=?settings.modulate_code_bias_phsae;
global?early_code_nco;
%?early_code_nco?=?setting.e_code_original_phase;
local_early_code_last?=?local_earlycode_initial(settingscode_table);%產生本地超前碼
for?loop_num?=?1?:?1500
????signal_original?=
?屬性????????????大小?????日期????時間???名稱
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?????文件???????8102??2015-12-03?15:18??北斗二代跟蹤\BeginProcess.m
?????文件????????402??2015-12-01?13:01??北斗二代跟蹤\GOLD_code.m
?????文件????????780??2015-12-03?14:49??北斗二代跟蹤\localcode_generate.m
?????文件????????574??2015-12-01?13:18??北斗二代跟蹤\local_earlycode_initial.m
?????文件????????715??2015-12-03?10:40??北斗二代跟蹤\loop_canshu_calculate.m
?????文件???????1934??2015-12-03?15:06??北斗二代跟蹤\setting_canshu.m
?????文件????????716??2015-12-02?10:44??北斗二代跟蹤\signalcode.m
?????文件????????418??2015-12-02?10:38??北斗二代跟蹤\source_.m
?????目錄??????????0??2015-12-03?16:01??北斗二代跟蹤
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????????????????13641????????????????????9
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