|
fs=10000;
t0 = 0:1/fs:1;
x = chirp(t0,0,1,150);N=length(x);
fx=0:fs/N:fs/2;
subplot(211)
plot(t0,x)
y=2*abs(fft(x))/N;
subplot(212)
plot(fx,y(1:length(fx)));
2、角域重采样
采用CIC滤波器进行时间点插值计算,采用线性插值算法进行波形插值计算
3、阶比谱
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