function?[ambig]?=?barker_ambig（uinput）
%?Compute?and?plot?the?ambiguity?function?for?a?Barker?code
%Compute?the?ambiguity?function
%?by?utilizing?the?FFT?through?combining?multiple?range?cuts
N?=?size（uinput2）;
tau?=?N;
Barker_code?=?uinput;
samp_num?=?size（Barker_code2）?*10;
n?=?ceil（log（samp_num）?/?log（2））;
nfft?=?2^n;
u（1:nfft）?=?0;
j?=?0;
for?index?=?1:10:samp_num
????index;
????j?=?j+1;
????u（index:index+10-1）?=?Barker_code（j）;
end
v?=?u;
delay?=?linspace（-tau?tau?nfft）;
freq_del?=?12?/?tau?/100;
j?=?0;
vfft?=?fft（vnfft）;
for?freq?=?-6/tau:freq_del:6/tau;
????j?=?j+1;
????exf?=?exp（sqrt（-1）?*?2.?*?pi?*?freq?.*?delay）;
????u_times_exf?=?u?.*?exf;
????ufft?=?fft（u_times_exfnfft）;
????prod?=?ufft?.*?conj（vfft）;
????ambig（:j）?=?fftshift（abs（ifft（prod））‘

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2016-03-19?22:34??chap4\
?????文件????????1334??2003-06-02?13:55??chap4\Barker_ambig.m
?????文件?????????806??2003-07-03?14:54??chap4\Fig4_2.m
?????文件?????????596??2003-06-25?15:01??chap4\Fig4_6.m
?????文件?????????373??2003-06-03?16:40??chap4\fig4_4.m
?????文件?????????796??2016-03-19?20:48??chap4\fig4_5.m
?????文件?????????313??2003-06-03?17:08??chap4\fig4_8.m
?????文件?????????471??2016-03-19?20:41??chap4\lfm_ambg.m
?????文件?????????847??2003-06-14?17:32??chap4\myradar_visit4.m
?????文件????????1339??2003-07-22?13:42??chap4\prn_ambig.m
?????文件?????????406??1999-11-07?12:51??chap4\single_pulse_ambg.m
?????文件?????????841??2003-06-25?15:06??chap4\train_ambg.m