我在matlab7.0中安装了时频工具箱,在help tfrstft时,出现例子
Example :
sig=[fmconst(128,0.2);fmconst(128,0.4)]; tfr=tfrstft(sig);
subplot(211); imagesc(abs(tfr));
subplot(212); imagesc(angle(tfr));
可是运行后,却出现错误
Warning: Could not find an exact (case-sensitive) match for 'tfrstft'. D:\Program Files\MATLAB704\work\tftb\mfiles\TFRSTFT.M is a case-insensitive match and will be used instead. You can improve the performance of your code by using exact name matches and we therefore recommend that you update your usage accordingly. Alternatively, you can disable this warning using warning('off','MATLAB:dispatcher:InexactMatch').
> In Untitled2 at 1
??? Error using ==> window
Not enough input arguments.
Error in ==> TFRSTFT at 44
t=1:xrow; h = window(hlength); trace=0;
Error in ==> Untitled2 at 1
sig=[fmconst(128,0.2);fmconst(128,0.4)]; tfr=tfrstft(sig);
不知道到底是什么原因,请大家帮帮忙!