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ellf
说明： C++ IIR滤波器源代码，速度远高于matlab(C++ IIR filter source code, faster than matlab)
- 2010-04-22 17:14:48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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iteration-program
A new method of itertions for dictionary traning via KSVD
- 2013-03-20 16:43:05下载
- 积分：1
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2ASK
极优秀的Matlab仿真程序，对于2ASK的研究有很大的助益，希望和你共同学习~~(Very good Matlab simulation program for 2ASK research very helpful, and I hope you learn together ~ ~)
- 2013-04-10 23:53:23下载
- 积分：1
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SVG
说明： SVG模型在matlab的仿真原理图,SVG模型在matlab的仿真原理图(svg matlab)
- 2020-10-19 10:47:28下载
- 积分：1
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msk
MSK最小相位信号调制解调，附有清晰的性能图，仿真可靠的好程序(MSK minimum phase signal modulation and demodulation, with clear performance graphs, a good and reliable simulation program)
- 2014-09-25 22:55:07下载
- 积分：1
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GA_beibao
遗传算法求解背包问题Genetic Algorithm for Knapsack Problem(Genetic Algorithm for Knapsack Problem)
- 2015-03-04 11:25:54下载
- 积分：1
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moravec
moravec角点检测的matlab实现(moravec corner detection matlab implementation)
- 2009-12-25 17:24:20下载
- 积分：1
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Matlabnerualnetwork
神经网络中的小波分析。包括很多m文件，可以很好的学习神经网络(nerual network)
- 2009-12-30 16:09:12下载
- 积分：1
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rangecalc
calculates range, discrete time version of "time delay" of 1st peaks from match filters outputs
- 2009-06-13 12:46:14下载
- 积分：1
