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pulse-compress
雷达信号处理中的一个重要过程:利用匹配滤波中的相关原理,对目标进行定位(Radar signal processing, an important process: the use of matched filtering principle to locate the target)
- 2012-12-07 10:05:42下载
- 积分:1
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The_Weather_Radar_Product_Synthetic_Programming_by
The Weather Radar Product Synthetic Programming by VC++ & MATLAB.pdf
- 2010-09-29 09:43:38下载
- 积分:1
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mkr
Algorithm of the decision of a problem of distribution of heat in a pipe a method of final differences
- 2009-11-28 18:09:10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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Code_LowRankSaliency
通过恢复低秩矩阵得到显著性图,其中详细的运用了mean-shift算法,可以很好的了解mean-shift算法的使用,同时还包含了RPCA算法。(Significantly through the recovery of low rank matrix diagram, which detailed the use of mean-shift algorithm, can be a very good understanding of the use of the mean-shift algorithm, also contains RPCA algorithm.)
- 2013-01-16 22:11:56下载
- 积分:1
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HessianSSR
基于Hessian能量的半监督回归,并将其应用于半监督维数约简。(This is code for the semi-supervised regression using Hessian energy.
Kwang In Kim, Florian Steinke and Matthias Hein, "Semi-supervised Regression using Hessian energy with an application to semi-supervised dimensionality reduction" NIPS 2009)
- 2013-08-30 12:42:41下载
- 积分:1
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Rotate
image rotate using hough transform to detect the edge of image.
- 2011-10-07 14:53:18下载
- 积分:1
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EX4
一种分割细胞的方法,利用matlab进行的图像处理程序(A segmentation method of cells, using matlab for image processing)
- 2010-06-14 15:08:04下载
- 积分:1
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stblrnd
STBLERND generates random numbers form the Levy alpha-stable distribution
- 2016-06-27 21:30:46下载
- 积分:1
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naivebayes
naive bayes分类法的matlab实现,包含训练和测试部分(naive bayes classification matlab realize, including training and testing parts)
- 2013-07-16 09:36:24下载
- 积分:1