实验二时域采样理论的验证程序Tp64/1000;Fs1000;T1/Fs;MTp*Fs; n0M-1;A444.128;api*50*2A0.5;omegapi*50*2A0.5; xn tA*exp-a* n*T.*si nomega* n*T;XkT*fftx nt,M;subplot3,2,1;stemx nt,.;box on;title1Fs1OOOHz;axis0 70 -10 170;xlabel n;ylabelxa nT;k0M-1;fkk/Tp;subplot3,2,2;plotfk,absXk;title1T*FTxa nT,Fs1000Hz; xlabelfHz;ylabel幅度;axis0 Fs 0 1.2*maxabsXk;Tp64/1000;Fs300;T1/Fs;MTp*Fs; n0M-1;A444.128;api*50*2A0.5;omegapi*50*2A0.5; xn tA*exp-a* n*T.*si nomega* n*T;XkT*fftx nt,M;subplot3,2,3;stemx nt,.;title 2 Fs300Hz;axis0 20 -10 170;xlabel n;ylabelxa nT;k0M-1;fkk/Tp;subplot3,2,4;plotfk,absXk;title 2 T*FTxa nT,Fs300Hz; xlabelfHz;ylabel幅度;axis0 Fs 0 1.2*maxabsXk;Tp64/1000;Fs200;T1/Fs;MTp*Fs; n0M-1;A444.128;api*50*2A0.5;omegapi*50*2A0.5; xn tA*exp-a* n*T.*si nomega* n*T;XkT*fftx nt,M;subplot3,2,5;stemx nt,.;title 3 Fs200Hz;axis0 15 -10 170;xlabel n;ylabelxa nT;k0M-1;fkk/Tp;subplot3,2,6;plotfk,absXk;title 3 T*FTxa nT,Fs200Hz; xlabelfHz;ylabel幅度;axis0 Fs 0 1.2*maxabsXk;频域采样理论的验证程序清单 频域采样理论验证程序M27;N32; nOM;产生M长三角波序列xnxa0floorM/2; xb ceilM/2-1-10; xnxa,xb;Xkfftx n,1024;X32kfftx n,32;x32 nifftX32k;X16kX32k12N;x16 nifftX16k,N/2;subplot3,2,2;stem n,xn,.;box on titleb三角波序列 xn;xlabeln;ylabelxn;axis0,32,0,20 k01023;wk2*k/1024;subplot3,2,1;plotwk,absXk;titleaFTx n;xlabelomega八pi;ylabel|XeAjAomega|;axis0,1,0,200 k0N/2-1;subplot3,2,3;stemk,absX16k,.;box ontitlec 16 点频域采样;xlabelk;ylabel|X_1_6k|;axis0,8,0,200 n10N/2-1;subplot3,2,4;stem n1,x16 n,.;box ontitled 16 点 IDFTX_1_6k;xlabeln;ylabelx_1_6n;axis0,32,0,20 k0N-1;subplot3,2,5;stemk,absX32k,.;box ontitlee 32 点频域采样;xlabelk;ylabel|X_3_2k|;axis0,16,0,200 n10N-1;subplot3,2,6;stemn1,x32n,.;box ontitlef 32 点 IDFTX_3_2k;xlabeln;ylabelx_3_2n;axis0,32,0,20