clc;clear;
SNR=-10:10;??????????????????%信噪比：單位（DB）
S_N=10.^（SNR/10）;????????????%信號功率與噪聲功率的比值，無量綱
c=3*10^8;????????????????%電磁波的傳播速度
B=10^9.*[0.5?0.8?1.2?3.1?10.6];???%B為發射信號的有效帶寬，向量里的數值代表不同BW取值
???for?i=1:5
???????d（i:）=1./（8*pi^2*B（i）.^2*S_N）;??%TOA測距估計滿足的CRLB不等式，d為TOA估計得方差
???end
??d=sqrt（d）*c*100;?????????????????????%CLRB測距誤差為c*d^0.5，并換算成厘米
???
%畫出不同信噪比下的CRLB誤差比較
P=plot（SNRd（1:）‘-*‘SNRd（2:）‘-d‘SNRd（3:）‘-h‘...
????SNRd（4:）‘-o‘SNRd（5:）‘-s‘）;?
grid?on
set（P‘linewidth‘[2]）;
axis（[-10?10?0?25]）
AX=gca;
set（AX‘Fontsize‘12）;
AY=gcf;
set（gcf‘color‘‘w‘）
X=xlabel（‘SNR?[DB]‘）;
set（X‘FontSize‘14）;
Y=ylabel（‘TOA的CRLB（cm）‘）;
set（Y‘FontSize‘14）;
legend（‘B=0.5GHz‘?‘B=0.75GHz‘‘B=1.0GHz‘‘B=3.1GHz‘‘B=10.6GHz‘）;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2014-04-10?08:21??UWB\
?????目錄???????????0??2014-03-31?09:18??UWB\cp0101\
?????文件????????3116??2014-03-31?09:11??UWB\cp0101\cp0101_bandwidth.m
?????文件????????1290??2014-03-30?16:45??UWB\cp0101\cp0101_genook.m
?????文件????????1216??2014-04-08?11:23??UWB\cp0101\cp0101_genrect.m
?????文件?????????429??2014-03-31?09:14??UWB\cp0101\waitbar_1.m
?????目錄???????????0??2014-01-25?18:21??UWB\cp0102\
?????文件????????3047??2014-03-31?09:33??UWB\cp0102\cp0102_sinpulse_one.m
?????文件????????2945??2014-03-31?09:37??UWB\cp0102\cp0102_sinpulse_two.m
?????目錄???????????0??2014-04-07?08:08??UWB\cp0201\
?????文件????????1825??2014-04-07?10:10??UWB\cp0201\cp0201_2PPM_TH.m
?????文件?????????410??2014-04-07?10:10??UWB\cp0201\cp0201_bits.m
?????文件?????????643??2014-04-07?10:10??UWB\cp0201\cp0201_repcode.m
?????文件?????????354??2014-04-07?10:10??UWB\cp0201\cp0201_TH.m
?????文件????????3782??2014-04-08?10:20??UWB\cp0201\cp0201_transmitter_2PPM_TH.m
?????文件????????1410??2014-04-07?10:10??UWB\cp0201\cp0201_waveform.m
?????目錄???????????0??2014-04-07?10:10??UWB\CP0202\
?????文件????????1530??2014-04-07?10:10??UWB\CP0202\cp0202_2PAM_DS.m
?????文件?????????335??2014-04-07?10:10??UWB\CP0202\cp0202_DS.m
?????文件????????3261??2014-04-07?10:10??UWB\CP0202\cp0202_transmitter_2PAM_DS.m
?????目錄???????????0??2014-04-07?10:10??UWB\CP0203\
?????文件????????3964??2014-04-07?10:10??UWB\CP0203\cp0203_OFDM_qpsk.m
?????文件?????????737??2014-04-07?10:10??UWB\CP0203\cp0203_qpsk_mod.m
?????目錄???????????0??2014-04-08?16:55??UWB\CP0301\
?????文件????????2034??2014-04-08?16:30??UWB\CP0301\cp0301_PPM_sin.m
?????文件?????????955??2014-04-07?10:10??UWB\CP0301\cp0301_PSD.m
?????目錄???????????0??2014-04-07?10:10??UWB\CP0302\
?????文件????????2079??2014-04-09?09:01??UWB\CP0302\cp0302_PPM_periodic.m
?????目錄???????????0??2014-04-07?10:10??UWB\CP0303\
?????文件????????2084??2014-04-07?10:10??UWB\CP0303\cp0303_PPM_random.m
?????目錄???????????0??2014-04-07?10:10??UWB\CP0402\
............此處省略139個文件信息