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test
使用统计中值法，获取背景图像。简单易懂，希望对大家有帮助。(Using the statistical value method, to obtain the background image. Easy to understand, we hope to help.)
- 2012-06-02 09:39:17下载
- 积分：1
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subbyteskey
add sub bytes through incrypting image
- 2011-10-16 20:26:09下载
- 积分：1
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AC_AC_FINAL
变频仿真，实现无级调速仿真功能，适合新手。(Frequency Simulation)
- 2009-12-21 13:29:22下载
- 积分：1
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200712517012922
人工神经网络算法，matlab,c,fortran(artificial neural network algorithm, Matlab, c, fortran)
- 2007-04-03 18:53:13下载
- 积分：1
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ESPRIT2
阵列信号处理_空间谱估计原理的一些基本算法——MusicEspritMp(Array signal processing _ the principle of spatial spectrum estimation of some of the basic algorithm- MusicEspritMp)
- 2007-08-10 20:25:21下载
- 积分：1
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03607_28
DFT进行频谱分析时的三种现象
1、混叠：对连续信号采样，要求连续信号是带限的，采样频率要足够高。Fs应满足Nyquist采样定理才不产生混叠。
采样前加低通滤波器防混叠
2、频谱泄漏：DFT对时域信号进行了截断（相当于采样信号乘了一个窗函数），时域的乘积相当于频域卷积，改变了原信号频谱。
改用其他窗函数（非矩形）改善泄漏。
3、栅栏现象：DFT 只给出了频谱在采样点上的取值，采样点间的频谱内容丢失。(DFT spectrum analysis of a three phenomena, aliasing : continuous signal sampling, requiring continuous signal is band-limited, the sampling frequency should be high enough. Fs meet the Nyquist Sampling Theorem would not have aliasing. Sampling former low-pass filter plus anti-aliasing 2, spectrum leakage : DFT right time domain signal a disconnect (equivalent to a sampling signal by a window function). time domain is equivalent to the product of frequency-domain convolution, changes in the spectrum of the original signal. Window functions to switch to other (non-rectangular) to improve leakage. 3, fenced phenomenon : DFT spectrum is given only at the sampling point value, sampling points of the spectrum as lost.)
- 2007-05-08 16:22:17下载
- 积分：1
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dscdma
基于通信系统基础框架，DS-CDMA系统性能分析(
Basic framework-based communication system, DS-CDMA system performance analysis)
- 2015-04-13 20:29:54下载
- 积分：1
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resistivity
说明： matlab语言编写的 大地电磁电阻率正演程序(matlab language MT resistivity forward procedure)
- 2011-04-03 14:01:00下载
- 积分：1
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jirrm-0.2-20061016-linux.tar
java open source code for iris pattern recognition system
- 2013-01-09 23:19:37下载
- 积分：1
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FORavgirisprot
Low Computational Iris Recognition Based on Moving Average Filter
- 2012-05-25 15:30:56下载
- 积分：1
