function?[convert_para_sconvert_para_sourcesignal_sourcesource_phase]=create_signal_source（ifsfifdthetaTCNRBnconvert）
????global?convert_set;
????convert_para_s=0;
????convert_para_source=0;
????
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%產生信號源%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
??M=T*fs;%采樣點數
??%n=（（i-1）*T）:1/fs:（i*T）-1/fs;%一次積分清除有T*fs=6000個采樣點
??n=（（i-1）*M）:（i*M）-1;%一次積分清除有T*fs=6000個采樣點
??%theta_org=mod（2*pi*（（fi+fd-50*cos（0.16*0.001*i+pi/2））*n）/fs+theta2*pi）;%采樣點對應的相位
??%varyphase?=?-pi*80*（n/fs）.^2;
??%varyphase?=?-2*pi*3125*cos（0.16*n/fs-pi/2）;
??varyphase?=?0;
??theta_org=mod（varyphase+2*pi*（fi+fd）*n/fs+theta2*pi）;%采樣點對應的相位
??signal_source=cos（theta_org）;%得到源信號
??
??
??source_phase?=?theta_org（M）;%最后一個點的相位作為信號相位
??source_phase?=?mod（source_phase2*pi）;%相位設到0~2*pi之間
??source_phase?=?source_phase*360/（2*pi）;?%轉化為度數
??
?%%%%%%%%%%%%%%%%%%%%%%%%%%加入載噪比%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
?if?CNR?~=?888
?SNR?=?CNR?-?10*log10（Bn*2）;%由載噪比計算信噪比
?SNR?=?SNR?+?10*log10（Bn*4/fs）;?%?考慮現在加入的噪聲是平均加到整個采樣率范圍內的，之后信號會通過帶通濾波器，噪聲只通過了Bn*2，所以要減小信噪比，這樣才是對的
?SNR?=?10^（SNR/10）;%?將噪聲轉化為十進制的比例
?std_noise?=?1;%?噪聲的標準差為?1
?A_signal?=?sqrt（2*SNR*（std_noise^2））;%?計算信號幅度
?randn（‘state‘1）;
?noise_org?=?std_noise*randn（1M）;%?產生無限帶寬的噪聲序列
?
?%?信號源中FIR的帶通濾波器的參數
?global?bofsourceFIR;
?global?noise_sourceFIR;
?
?%%%%%%%%%%%%%%%%%%%%%%%%%對噪聲序列進行帶通濾波%%%%%%%%%%%%%%%%%%%%%%%%%%%%
?noise?=?zeros（1M）;%?初始化矩陣提高運算速度
?sourceb_size?=?length（bofsourceFIR）;%?濾波器級數
?for?m=1:M
?????%?循環得到新的輸入序列???
?????noise_sourceFIR（2:sourceb_size）?=?noise_sourceFIR（1:（sourceb_size-1））;
?????noise_sourceFIR（1）?=?noise_org（m）;
?????noise（m）?=?bofsourceFIR*noise_sourceFIR‘;%?與系數相乘得到本次濾波的輸出
?end%?結束本循環濾波
?
?%?將噪聲限制在?3sigma的范圍內
?noise（find（noise?>?3*std_noise））?=?3*std_noise;
?noise（find（noise??
?signal_source?=?A_signal*signal_source?+?noise;%?對信號添加噪聲
?else
?SNR?=?10^（CNR/10）;
?A_signal?=?sqrt（2*SNR）;
?signal_source?=?A_signal*signal_source;%?對信號添加噪聲
?end
?%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
?
?%%%%%%%%%%%%%%%%%%%%%%%%%記錄信號源量化設置%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%???
???if?convert==1
???????convert_para_s=8;%量化為8位，1位符號位，2位整數位，5位小數位
???????convert_para_source?=?convert_para_s?-?3;
???????signal_source?=?round（signal_source*2^convert_para_source）;
???????for?m=1:fs*T
???????????%因為量化范圍是-128~127，所以當出現128時要強制轉換為127
???????????if?signal_source（m）?==?128?
???????????????signal_source（m）?=?127;
???????????end
???????end
???????if?i?==?1
???????????fprintf（convert_set‘信號源量化為%dbit：1bit符號，%dbit整數，%dbit小數\r\n\r\n‘convert_para_sconvert_para_s-convert_para_source-1convert_para_source）;
???????end
???end
?????
?
?
??

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

?????文件??????30967??2012-11-07?20:31??PLL_matlab\100Hz.jpg

?????文件??????35068??2012-11-07?16:14??PLL_matlab\350Hz_15Hz.jpg

?????文件??????35892??2012-11-07?16:45??PLL_matlab\352Hz_15Hz.jpg

?????文件??????35582??2012-11-07?16:50??PLL_matlab\355Hz_10Hz.jpg

?????文件??????34724??2012-11-07?16:56??PLL_matlab\355Hz_30Hz.jpg

?????文件??????39217??2012-11-07?17:00??PLL_matlab\355Hz_40Hz.jpg

?????文件??????38619??2012-11-07?17:04??PLL_matlab\355Hz_50Hz_1.203.jpg

?????文件??????34893??2012-11-07?16:34??PLL_matlab\360Hz_15Hz.jpg

?????文件??????36140??2012-11-07?16:20??PLL_matlab\370Hz_15Hz.jpg

?????文件??????13120??2012-11-08?19:28??PLL_matlab\500_std2.fig

?????文件???????3176??2012-11-14?10:18??PLL_matlab\create_signal_source.asv

?????文件???????3204??2012-11-14?20:45??PLL_matlab\create_signal_source.m

?????文件??????????0??2012-11-14?21:37??PLL_matlab\Data_Record\BitData_para_filter.txt

?????文件?????????31??2012-11-14?21:48??PLL_matlab\Data_Record\DecData_para_filter.txt

?????文件???????1010??2012-11-13?20:39??PLL_matlab\discriminator.m

?????文件???????2035??2012-11-13?16:21??PLL_matlab\NCO_process.asv

?????文件???????2033??2012-11-13?20:05??PLL_matlab\NCO_process.m

?????文件???????9770??2012-11-14?21:20??PLL_matlab\pll.asv

?????文件???????9777??2012-11-14?21:20??PLL_matlab\pll.m

?????文件???????2984??2012-11-13?00:25??PLL_matlab\Pll_loop_lockjudge.asv

?????文件???????2989??2012-11-13?14:04??PLL_matlab\Pll_loop_lockjudge.m

?????文件????????386??2012-11-05?20:53??PLL_matlab\RecordDec.m

?????文件???????2625??2012-11-14?20:09??PLL_matlab\set_para_filter.m

?????文件???????2397??2012-11-07?16:02??PLL_matlab\set_para_pll.asv

?????文件???????2402??2012-11-14?20:58??PLL_matlab\set_para_pll.m

?????文件????????103??2012-11-06?16:10??PLL_matlab\sum_signal_IQ.m

?????文件???10782517??2012-11-09?20:39??PLL_matlab\tixing.fig

?????文件??????41602??2012-11-09?21:05??PLL_matlab\zhexianxing.jpg

?????目錄??????????0??2012-11-12?22:48??PLL_matlab\Data_Record

?????目錄??????????0??2012-12-03?11:20??PLL_matlab

............此處省略3個文件信息