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分数阶傅立叶变换

山坡羊
发布于2013-10-16 16:42:13
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MatlabMatlab MatlabMatlab

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代码介绍

matlab计算分数阶傅立叶变换。对LFM信号进行加噪处理,通过frft+滤波器然后反frft得到去噪的信号。例程完整,有运行结果。lfm在声呐,雷达方面有巨大的应用。而frft是分数阶的傅立叶变换,通过做p阶变换得到了相应的参数,对lfm参数估计也有很好的作用。
云测速

源码文件列表

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名称 大小 修改日期
Chirp_and_its_delay.m3.74 kB18-03-13|09:35
Chirp_SNR_Restore.m3.46 kB25-02-13|17:02
Chirp_Sum.m3.83 kB18-03-13|09:44
Diff_Chirp.m3.69 kB25-02-13|19:52
fmlin.m1.54 kB09-08-04|10:00
fmlin2.m1.59 kB25-02-13|20:00
frft.m1.48 kB13-11-08|21:57
Chirp_and_its_delay.m2.67 kB21-03-13|21:46
Chirp_SNR_Restore.m3.45 kB25-02-13|20:26
Chirp_Sum.m2.77 kB21-03-13|23:27
Diff_Chirp.m2.65 kB21-03-13|22:54
frft.m1.48 kB13-11-08|21:57
IdentifiableFrequencySpaceOfChirp.m1.18 kB26-02-13|12:20
men.m587.00 B08-06-09|22:58
readme.txt200.00 B18-03-13|10:38
shiftlr.m755.00 B25-02-13|19:10
shiftmatrix.m522.00 B25-02-13|17:12
shiftud.m171.00 B25-02-13|19:10
SNR_Detection.m357.00 B25-02-13|13:28
test1.asv659.00 B25-02-13|16:36
test1.m3.87 kB25-02-13|20:10
tfrwv.m4.29 kB31-12-04|11:52
work_zrx.m2.76 kB25-02-13|16:20
men.m587.00 B08-06-09|22:58
readme.txt2.25 kB18-03-13|09:49
shiftlr.m755.00 B25-02-13|19:10
shiftmatrix.m522.00 B25-02-13|17:12
shiftud.m171.00 B25-02-13|19:10
SNR_Detection.m357.00 B25-02-13|13:28
test1.m3.87 kB25-02-13|20:10
tfrwv.m4.29 kB31-12-04|11:52
Thumbs.db16.00 kB25-02-13|19:56
work_zrx.m2.76 kB25-02-13|16:20
Thumbs.db88.50 kB25-02-13|14:48
SNR+01.bmp331.80 kB25-02-13|15:25
SNR+01.eps15.83 kB25-02-13|15:25
SNR+02.bmp331.80 kB25-02-13|15:25
SNR+02.eps15.65 kB25-02-13|15:25
SNR+03.bmp331.80 kB25-02-13|15:25
SNR+03.eps15.63 kB25-02-13|15:25
SNR+04.bmp331.80 kB25-02-13|15:26
SNR+04.eps15.77 kB25-02-13|15:26
SNR+05.bmp331.80 kB25-02-13|15:27
SNR+05.eps15.91 kB25-02-13|15:27
SNR+06.bmp331.80 kB25-02-13|15:27
SNR+06.eps15.76 kB25-02-13|15:27
SNR+07.bmp331.80 kB25-02-13|15:27
SNR+07.eps15.86 kB25-02-13|15:27
SNR+08.bmp331.80 kB25-02-13|15:27
SNR+08.eps15.83 kB25-02-13|15:28
SNR+09.bmp331.80 kB25-02-13|15:28
SNR+09.eps15.81 kB25-02-13|15:28
SNR+10.bmp331.80 kB25-02-13|15:28
SNR+10.eps15.78 kB25-02-13|15:28
SNR-00.bmp331.80 kB25-02-13|15:24
SNR-00.eps15.70 kB25-02-13|15:24
SNR-01.bmp331.80 kB25-02-13|15:24
SNR-01.eps15.76 kB25-02-13|15:24
SNR-02.bmp331.80 kB25-02-13|15:24
SNR-02.eps15.78 kB25-02-13|15:24
SNR-03.bmp331.80 kB25-02-13|15:23
SNR-03.eps15.95 kB25-02-13|15:23
SNR-04.bmp331.80 kB25-02-13|15:23
SNR-04.eps15.97 kB25-02-13|15:23
SNR-05.bmp331.80 kB25-02-13|15:23
SNR-05.eps15.79 kB25-02-13|15:22
SNR-06.bmp331.80 kB25-02-13|15:22
SNR-06.eps15.83 kB25-02-13|15:22
SNR-07.bmp331.80 kB25-02-13|15:22
SNR-07.eps15.72 kB25-02-13|15:22
SNR-08.bmp331.80 kB25-02-13|15:22
SNR-08.eps15.74 kB25-02-13|15:22
SNR-09.bmp331.80 kB25-02-13|15:21
SNR-09.eps15.76 kB25-02-13|15:21
SNR-10.bmp331.80 kB25-02-13|15:21
SNR-10.eps15.80 kB25-02-13|15:21
SNR-11.bmp331.80 kB25-02-13|15:21
SNR-11.eps15.83 kB25-02-13|15:21
SNR-12.bmp331.80 kB25-02-13|15:20
SNR-12.eps15.85 kB25-02-13|15:20
SNR-13.bmp331.80 kB25-02-13|15:20
SNR-13.eps16.00 kB25-02-13|15:20
SNR-14.bmp331.80 kB25-02-13|15:20
SNR-14.eps16.03 kB25-02-13|15:20
SNR-15.bmp331.80 kB25-02-13|15:19
SNR-15.eps16.02 kB25-02-13|15:19
SNR-16.bmp331.80 kB25-02-13|15:19
SNR-16.eps16.06 kB25-02-13|15:19
SNR-17.bmp331.80 kB25-02-13|15:19
SNR-17.eps15.96 kB25-02-13|15:19
SNR-18.bmp331.80 kB25-02-13|15:18
SNR-18.eps15.86 kB25-02-13|15:18
SNR-19.bmp331.80 kB25-02-13|15:18
SNR-19.eps16.28 kB25-02-13|15:18
SNR-20.bmp331.80 kB25-02-13|15:18
SNR-20.eps16.01 kB25-02-13|15:18
SNR-21.bmp331.80 kB25-02-13|15:17
SNR-21.eps16.03 kB25-02-13|15:17
SNR-22.bmp331.80 kB25-02-13|15:17
SNR-22.eps15.68 kB25-02-13|15:17
SNR-23.bmp331.80 kB25-02-13|15:17
SNR-23.eps16.09 kB25-02-13|15:16
SNR-24.bmp331.80 kB25-02-13|15:15
SNR-24.eps16.00 kB25-02-13|15:15
SNR-25.bmp331.80 kB25-02-13|15:15
SNR-25.eps16.18 kB25-02-13|15:15
SNR-26.bmp331.80 kB25-02-13|15:14
SNR-26.eps15.88 kB25-02-13|15:15
SNR-27.bmp331.80 kB25-02-13|15:14
SNR-27.eps16.20 kB25-02-13|15:13
SNR-28.bmp331.80 kB25-02-13|15:11
SNR-28.eps15.96 kB25-02-13|15:11
SNR-29.bmp331.80 kB25-02-13|15:11
SNR-29.eps15.91 kB25-02-13|14:59
SNR-30.bmp331.80 kB25-02-13|14:58
SNR-30.eps16.04 kB25-02-13|14:59
SNR-SNR_FRFT.bmp331.80 kB25-02-13|15:32
SNR-SNR_FRFT.eps9.37 kB25-02-13|15:32
Thumbs.db596.50 kB25-02-13|15:32
FRFT遍历.bmp331.80 kB25-02-13|19:56
FRFT遍历.eps35.29 kB25-02-13|19:56
FRFT遍历2.bmp3.27 MB25-02-13|19:56
FRFT遍历2.eps3.27 MB25-02-13|19:57
Thumbs.db76.00 kB25-02-13|19:59
WVD.bmp331.80 kB25-02-13|19:58
WVD.eps619.06 kB25-02-13|19:57
WVD2.bmp331.80 kB25-02-13|19:58
WVD2.eps3.27 MB25-02-13|19:58
多径+其他CHIRP+高斯及还原后的信号.bmp331.80 kB25-02-13|19:55
多径+其他CHIRP+高斯及还原后的信号.eps15.81 kB25-02-13|19:55
多径+其他CHIRP.bmp331.80 kB25-02-13|19:58
多径+其他CHIRP.eps11.80 kB25-02-13|19:58
目标信号.bmp331.80 kB25-02-13|19:59
目标信号.eps12.15 kB25-02-13|19:59
阈值分割.bmp331.80 kB25-02-13|19:55
阈值分割.eps10.88 kB25-02-13|19:55
FRFT阶次遍历.bmp333.77 kB25-02-13|19:30
FRFT阶次遍历.eps808.38 kB25-02-13|19:30
FRFT阶次遍历2.bmp331.80 kB25-02-13|19:31
FRFT阶次遍历2.eps3.27 MB25-02-13|19:31
Thumbs.db108.00 kB25-02-13|19:36
WVD分布图1.bmp331.80 kB25-02-13|19:33
WVD分布图1.eps2.79 MB25-02-13|19:32
WVD分布图2.bmp331.80 kB25-02-13|19:35
WVD分布图2.eps3.27 MB25-02-13|19:35
原始信号.bmp331.80 kB25-02-13|19:28
原始信号.eps12.16 kB25-02-13|19:28
多径传输信号.bmp331.80 kB25-02-13|19:36
多径传输信号.eps12.00 kB25-02-13|19:36
多径模拟+噪声与FRFT去噪后信号.bmp331.80 kB25-02-13|19:29
多径模拟+噪声与FRFT去噪后信号.eps15.79 kB25-02-13|19:29
阈值分割.bmp331.80 kB25-02-13|19:30
阈值分割.eps10.72 kB25-02-13|19:30
CHIRP干扰+噪声及还原后的信号.bmp331.80 kB25-02-13|19:44
CHIRP干扰+噪声及还原后的信号.eps15.80 kB25-02-13|19:45
FRFT遍历.bmp331.80 kB25-02-13|19:45
FRFT遍历.eps712.89 kB25-02-13|19:46
FRFT遍历2.bmp331.80 kB25-02-13|19:47
FRFT遍历2.eps3.27 MB25-02-13|19:47
Thumbs.db106.50 kB25-02-13|19:49
WVD.bmp331.80 kB25-02-13|19:48
WVD.eps591.43 kB25-02-13|19:48
WVD2.bmp331.80 kB25-02-13|19:48
WVD2.eps3.27 MB25-02-13|19:48
多CHIRP联合信号.bmp331.80 kB25-02-13|19:49
多CHIRP联合信号.eps11.84 kB25-02-13|19:49
目标信号.bmp331.80 kB25-02-13|19:49
目标信号.eps12.17 kB25-02-13|19:49
阈值分割.bmp331.80 kB25-02-13|19:45
阈值分割.eps10.73 kB25-02-13|19:45
简单阈值滤波0.00 B25-02-13|20:43
SNR_Restore0.00 B0%|25-02-13
SUM0.00 B25-02-13|20:05
多径+其他类型Chirp干扰0.00 B25-02-13|20:43
多径模拟0.00 B25-02-13|20:43
来自其他chirp的干扰0.00 B25-02-13|20:43