File list (Check if you may need any files):
信号处理工具箱
..............\@fdax
..............\.....\delete.m
..............\.....\eq.m
..............\.....\fdax.m
..............\.....\get.m
..............\.....\overlay.m
..............\.....\set.m
..............\.....\setpos.m
..............\.....\subsasgn.m
..............\.....\subsref.m
..............\@fdline
..............\.......\delete.m
..............\.......\eq.m
..............\.......\fdline.m
..............\.......\get.m
..............\.......\set.m
..............\.......\subsasgn.m
..............\.......\subsref.m
..............\@fdmeas
..............\.......\delete.m
..............\.......\eq.m
..............\.......\fdmeas.m
..............\.......\get.m
..............\.......\set.m
..............\.......\subsasgn.m
..............\.......\subsref.m
..............\.......\userchange.m
..............\@fdspec
..............\.......\delete.m
..............\.......\eq.m
..............\.......\fdspec.m
..............\.......\get.m
..............\.......\set.m
..............\.......\subsasgn.m
..............\.......\subsref.m
..............\.......\userchange.m
..............\Contents.m
..............\Readme.m
..............\bartlett.m
..............\besselap.m
..............\besself.m
..............\bilinear.m
..............\blackman.m
..............\boxcar.m
..............\bscost.m
..............\buttap.m
..............\butter.m
..............\buttord.m
..............\cceps.m
..............\cheb1ap.m
..............\cheb1ord.m
..............\cheb2ap.m
..............\cheb2ord.m
..............\chebwin.c
..............\chebwin.dll
..............\chebwin.m
..............\chebwinx.c
..............\chebwinx.dll
..............\cheby1.m
..............\cheby2.m
..............\chirp.m
..............\cohere.m
..............\convmtx.m
..............\cremez.m
..............\csd.m
..............\czt.m
..............\cztdemo.m
..............\dct.m
..............\dctold.m
..............\decimate.m
..............\demod.m
..............\demos.m
..............\detrend.m
..............\dftmtx.m
..............\diric.m
..............\dpss.m
..............\dpssclear.m
..............\dpssdir.m
..............\dpssload.m
..............\dpsssave.m
..............\ellip.m
..............\ellipap.m
..............\ellipord.m
..............\fdbutter.m
..............\fdbutter.p
..............\fdcheby1.m
..............\fdcheby2.m
..............\fdcheby2.p
..............\fdellip.m
..............\fdellip.p
..............\fdfirls.m
..............\fdkaiser.m
..............\fdremez.m
..............\fdremez.p
..............\fdutil.m
..............\fdutil.p
..............\fftfilt.m
..............\filtdem.m
..............\filtdem2.m