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x4x52.m
n=0:16;
m=0:15;
a=cos((pi/4)*n);
b=sin((pi/8)*n);
c=a+b*j;
g=fft(c,16);
for i=0:15
z(i+1)=g(16-i);
end
p=conj(z);
d=0.5*(g+p);
e=-0.5*j*(g-p);
f=ifft(d,16);
subplot(2,1,1);ste
x4x5.m
n=0:16;
m=0:15;
a=cos((pi/4)*n);
b=sin((pi/8)*n);
c=a+b;
g=fft(c,16);
subplot(4,1,2);
stem(m,abs(g)) ; title('X4(t)+X5(t)的序列16点的FFT');
d=real(g);
e=imag(g);
f=ifft(d);
subplot
x5x7.c
/* Generated by convbdf on Tue Oct 3 00:24:24 MDT 2000. */
#include "device.h"
/* Font information:
name: "-Misc-Fixed-Medium-R-Normal--7-70-75-75-C-50-ISO8859-1"
pixel size: 7
ascent: 6
x5x7.bdf
STARTFONT 2.1
COMMENT
COMMENT Copyright 1991 X Consortium
COMMENT
COMMENT WARNING: This bdf file was generated from a font server using
COMMENT fstobdf. The resulting font is subject to the s
x6x13.bdf
STARTFONT 2.1
COMMENT
COMMENT Public domain font. Share and enjoy.
COMMENT
COMMENT WARNING: This bdf file was generated from a font server using
COMMENT fstobdf. The resulting font is subjec
x6x13.c
/* Generated by convbdf on Tue Oct 3 00:24:25 MDT 2000. */
#include "device.h"
/* Font information:
name: "-Misc-Fixed-Medium-R-SemiCondensed--13-120-75-75-C-60-ISO8859-1"
pixel size: 13
a
x5x7.c
/* Generated by convbdf on Tue Oct 3 00:24:24 MDT 2000. */
#include "device.h"
/* Font information:
name: "-Misc-Fixed-Medium-R-Normal--7-70-75-75-C-50-ISO8859-1"
pixel size: 7
asce
x6x13.c
/* Generated by convbdf on Tue Oct 3 00:24:25 MDT 2000. */
#include "device.h"
/* Font information:
name: "-Misc-Fixed-Medium-R-SemiCondensed--13-120-75-75-C-60-ISO8859-1"
pixel size: 1
x5x7.c
/* Generated by convbdf on Tue Oct 3 00:24:24 MDT 2000. */
#include "device.h"
/* Font information:
name: "-Misc-Fixed-Medium-R-Normal--7-70-75-75-C-50-ISO8859-1"
pixel size: 7
ascent: 6