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8-optimal_in_FRFTdomains
time-invariant degradation models and stationary
signals and noise, the classical Fourier domain Wiener
filter, which can be implemented in O(N logN) time, gives the
minimum mean-square-error estimate of the original undistorted
signal. For time-varying degradations and nonstationary processes,
however, the optimal linear estimate requires O(N2) time
for implementation. We consider filtering in fractional Fourier
domains, which enables significant reduction of the error compared
with ordinary Fourier domain filtering for certain types
of degradation and noise (especially of chirped nature), while
requiring only O(N logN) implementation time. Thus, improved
performance is achieved at no additional cost. Expressions for
the optimal filter functions in fractional domains are derived,
and several illustrative examples are given in which significant
reduction of the error (by a factor of 50) is obtained.
- 2015-02-21 10:15:13下载
- 积分：1
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ZhongZhLvB0
本文是编程来实现中值滤波，从而达到图像去噪的目的(This is a program to achieve the median filter, so as to achieve the purpose of image denoising)
- 2010-05-13 14:24:59下载
- 积分：1
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pcode_generation
扩频通信的相关仿真文件，希望有帮助，：）(Spread Spectrum Communication Simulation related documents, hoping to help :))
- 2007-04-03 10:46:12下载
- 积分：1
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recfil2
waveguide filter mode matching
- 2013-04-12 17:20:50下载
- 积分：1
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Normal distribution
正态分布程序例程，可以画双峰、三峰、四峰(Normal Distribution Program Routine,Can draw two peaks, three peaks, four peaks)
- 2020-12-17 13:49:12下载
- 积分：1
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extended
Simulink response of nonlinear system
- 2010-10-14 17:19:46下载
- 积分：1
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LMS_newchannel
说明： 仿真LMS均衡器 采用三径叠加信道，PSK调制，并计算误码性能(LMS equalizer simulation using three-path channel superimposed, PSK modulation, and calculate the BER)
- 2008-11-27 16:03:49下载
- 积分：1
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dispersion
不同光纤长度色散对光波的影响分析.对于50km，100km 和150km光纤进行了色散分析。(Different fiber length dispersion impact on optcal signal)
- 2012-06-11 11:29:21下载
- 积分：1
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ROOM-MUSIC
空间平滑music算法处理阵列信号，可以用于声源定位。(good,very good.)
- 2021-01-12 20:08:48下载
- 积分：1
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MIMO_Simulation
trials for MIMO discussion
- 2014-10-20 16:59:14下载
- 积分：1
