%?頻域串行?+?碼域并行FFT?+?平方檢波?+?恒虛警檢測?+?單次判決
%?王佳童?2120130834?史玥婷?2120130819

clc;
close?all;
clear?all;
tic;

%%?參數設置

????%碼率
????coderate?=?1.023e6;
????%采樣頻率
????fs?=?1.023e7;
????%積分清除時間1ms
????accum_time?=?1e-3;
????%積分清除對應采樣點數
????accum_num?=?accum_time?*?fs;
????%信噪比
????SNR?=?-15;
????%一個采樣點對應的碼片數
????m_chip?=?coderate/fs;
????%碼相位步進量1/2碼片
????theta_chip?=?0.5;
????theta_chip_num?=?round（0.5/m_chip）;
????
????%要捕獲的碼相位
????n_codeoffset?=?484;
????signal_code_phase?=?n_codeoffset;
????
????signal_code_word?=?1.023e6/fs;
????local_code_word??=?1.023e6/fs;?
????%載波中頻
????fif?=?2.046e6;

????%要捕獲的多普勒頻率
????fd?=?1500;
????signal_carrier_phase?=?0;
????signal_carrier_word?=?（fd+fif）/fs?*?2*pi;
????%多普勒頻率步進500Hz
????theta_f?=?500;
????%多普勒變化范圍[-5k5k]
?

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????5139??2014-05-29?22:12??FFT_acquisition.m
?????文件?????????363??2014-05-29?22:12??gold_gen.m
?????文件????????4346??2014-05-29?22:12??serial_acqusition.m
?????文件????????5564??2014-05-29?22:12??Tong_acquisition.m
?????文件??????468327??2015-04-07?15:49??捕獲實驗報告.docx