frame4pcm.m

该代码实现了am

                                     audio(1,236)=0;
                                     
                      elseif    (XX40(1,5)>=15001) & (XX40(1,5)<=20000)
                                     audio(1,234)=1;                          % 4
                                     audio(1,235)=1;
                                     audio(1,236)=0;
                                     
                      elseif    (XX40(1,5)>=20001) & (XX40(1,5)<=25000)
                                     audio(1,234)=0;                          % 5
                                     audio(1,235)=0;
                                     audio(1,236)=1;
                                     
                     elseif   (XX40(1,5)>=25001) & (XX40(1,5)<=30000)    
                                     audio(1,234)=1;                          % 6
                                     audio(1,235)=0;
                                     audio(1,236)=1;
                                     
                    elseif      (XX40(1,5)>=30000) & (XX40(1,5)<=35000)   
                                     audio(1,234)=0;                          % 7
                                     audio(1,235)=1;
                                     audio(1,236)=1;
                                     
                      elseif    (XX40(1,5)>=35000) & (XX40(1,5)<=40000)   
                                     audio(1,234)=1;                          % 8
                                     audio(1,235)=1;
                                     audio(1,236)=1;
                      
                         end                                               %  234到236 bits 第四帧脉冲5
                         
                         
                         if  (XX40(1,6)>=0) & (XX40(1,6)<=5000)      
                                     audio(1,237)=0;                          % 1
                                     audio(1,238)=0;
                                     audio(1,239)=0;
                                     
                      elseif    (XX40(1,6)>=5001) & (XX40(1,6)<=10000)  
                                     audio(1,237)=1;                          % 2
                                     audio(1,238)=0;
                                     audio(1,239)=0;
                                     
                       elseif     (XX40(1,6)>=10001) & (XX40(1,6)<=15000) 
                                     audio(1,237)=0;                          % 3
                                     audio(1,238)=1;
                                     audio(1,239)=0;
                                     
                      elseif    (XX40(1,6)>=15001) & (XX40(1,6)<=20000)
                                     audio(1,237)=1;                          % 4
                                     audio(1,238)=1;
                                     audio(1,239)=0;
                                     
                      elseif    (XX40(1,6)>=20001) & (XX40(1,6)<=25000)
                                     audio(1,237)=0;                          % 5
                                     audio(1,238)=0;
                                     audio(1,239)=1;
                                     
                     elseif   (XX40(1,6)>=25001) & (XX40(1,6)<=30000)    
                                     audio(1,237)=1;                          % 6
                                     audio(1,238)=0;
                                     audio(1,239)=1;
                                     
                    elseif      (XX40(1,6)>=30000) & (XX40(1,6)<=35000)   
                                     audio(1,237)=0;                          % 7
                                     audio(1,238)=1;
                                     audio(1,239)=1;
                                     
                      elseif    (XX40(1,6)>=35000) & (XX40(1,6)<=40000)   
                                     audio(1,237)=1;                          % 8
                                     audio(1,238)=1;
                                     audio(1,239)=1;
                      
                         end                                               %  237到239 bits 第四帧脉冲6
                         
                         
                           if  (XX40(1,7)>=0) & (XX40(1,7)<=5000)      
                                     audio(1,240)=0;                          % 1
                                     audio(1,241)=0;
                                     audio(1,242)=0;
                                     
                      elseif    (XX40(1,7)>=5001) & (XX40(1,7)<=10000)  
                                     audio(1,240)=1;                          % 2
                                     audio(1,241)=0;
                                     audio(1,242)=0;
                                     
                       elseif     (XX40(1,7)>=10001) & (XX40(1,7)<=15000) 
                                     audio(1,240)=0;                          % 3
                                     audio(1,241)=1;
                                     audio(1,242)=0;
                                     
                      elseif    (XX40(1,7)>=15001) & (XX40(1,7)<=20000)
                                     audio(1,240)=1;                          % 4
                                     audio(1,241)=1;
                                     audio(1,242)=0;
                                     
                      elseif    (XX40(1,7)>=20001) & (XX40(1,7)<=25000)
                                     audio(1,240)=0;                          % 5
                                     audio(1,241)=0;
                                     audio(1,242)=1;
                                     
                     elseif   (XX40(1,7)>=25001) & (XX40(1,7)<=30000)    
                                     audio(1,240)=1;                          % 6
                                     audio(1,241)=0;
                                     audio(1,242)=1;
                                     
                    elseif      (XX40(1,7)>=30000) & (XX40(1,7)<=35000)   
                                     audio(1,240)=0;                          % 7
                                     audio(1,241)=1;
                                     audio(1,242)=1;
                                     
                      elseif    (XX40(1,7)>=35000) & (XX40(1,7)<=40000)   
                                     audio(1,240)=1;                          % 8
                                     audio(1,241)=1;
                                     audio(1,242)=1;
                      
                         end                                               %  240到242 bits 第四帧脉冲7
                         
                         
                          if  (XX40(1,8)>=0) & (XX40(1,8)<=5000)      
                                     audio(1,243)=0;                          % 1
                                     audio(1,244)=0;
                                     audio(1,245)=0;
                                     
                      elseif    (XX40(1,8)>=5001) & (XX40(1,8)<=10000)  
                                     audio(1,243)=1;                          % 2
                                     audio(1,244)=0;
                                     audio(1,245)=0;
                                     
                       elseif     (XX40(1,8)>=10001) & (XX40(1,8)<=15000) 
                                     audio(1,243)=0;                          % 3
                                     audio(1,244)=1;
                                     audio(1,245)=0;
                                     
                      elseif    (XX40(1,8)>=15001) & (XX40(1,8)<=20000)
                                     audio(1,243)=1;                          % 4
                                     audio(1,244)=1;
                                     audio(1,245)=0;
                                     
                      elseif    (XX40(1,8)>=20001) & (XX40(1,8)<=25000)
                                     audio(1,243)=0;                          % 5
                                     audio(1,244)=0;
                                     audio(1,245)=1;
                                     
                     elseif   (XX40(1,8)>=25001) & (XX40(1,8)<=30000)    
                                     audio(1,243)=1;                          % 6
                                     audio(1,244)=0;
                                     audio(1,245)=1;
                                     
                    elseif      (XX40(1,8)>=30000) & (XX40(1,8)<=35000)   
                                     audio(1,243)=0;                          % 7
                                     audio(1,244)=1;
                                     audio(1,245)=1;
                                     
                      elseif    (XX40(1,8)>=35000) & (XX40(1,8)<=40000)   
                                     audio(1,243)=1;                          % 8
                                     audio(1,244)=1;
                                     audio(1,245)=1;
                      
                         end                                               %  243到245 bits 第四帧脉冲8
                         
                         
                          if  (XX40(1,9)>=0) & (XX40(1,9)<=5000)      
                                     audio(1,246)=0;                          % 1
                                     audio(1,247)=0;
                                     audio(1,248)=0;
                                     
                      elseif    (XX40(1,9)>=5001) & (XX40(1,9)<=10000)  
                                     audio(1,246)=1;                          % 2
                                     audio(1,247)=0;
                                     audio(1,248)=0;
                                     
                       elseif     (XX40(1,9)>=10001) & (XX40(1,9)<=15000) 
                                     audio(1,246)=0;                          % 3
                                     audio(1,247)=1;
                                     audio(1,248)=0;
                                     
                      elseif    (XX40(1,9)>=15001) & (XX40(1,9)<=20000)
                                     audio(1,246)=1;                          % 4
                                     audio(1,247)=1;
                                     audio(1,248)=0;
                                     
                      elseif    (XX40(1,9)>=20001) & (XX40(1,9)<=25000)
                                     audio(1,246)=0;                          % 5
                                     audio(1,247)=0;
                                     audio(1,248)=1;
                                     
                     elseif   (XX40(1,9)>=25001) & (XX40(1,9)<=30000)