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BruteSearch
K-nearest neighbors 搜索 聚类时经常使用的一种方法 国外网站转载( The following utilities are provided:
- Nearest neighbor
- K-Nearest neighbors
- Radius Search
They al supports N-dimensions and work on double, it is possible to choose if return the distances.
Here is a time comparison with a vectrized m-code:
N=1000000 number of reference points
Nq=100 number of query points
dim=3 dimension of points
k=3 number of neighbor
tic
[idc,dist]=BruteSearchMex(p ,qp , k ,k) MEX
toc
tic
[idc,dist]=knnsearch(qp,p,k) VECTORIZED M-CODE
toc
p=rand(N,dim)
qp=rand(Nq,dim)
Output:
Elapsed time is 0.962640 seconds.
Elapsed time is 18.813100 seconds. )
- 2009-03-30 08:08:08下载
- 积分：1
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digitalsignalprogress
关于离散傅立叶变换以及具体的matlab实现例子(On the Discrete Fourier Transform, as well as the achievement of specific examples matlab)
- 2009-06-06 20:02:10下载
- 积分：1
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QiuJu
说明： 基于matlab的求矩源程序,程序中求出了经典7阶矩,并继续求出了后5阶矩,即一共求出了12阶矩.(Moment based on matlab source of demand, the program derived a classic 7-order moment, and continue to derive a 5-order moment, namely, to derive a total of 12 moments.)
- 2008-12-04 11:43:21下载
- 积分：1
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Cctime
this source code is matlab cctime
- 2013-08-04 14:52:51下载
- 积分：1
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blead
基于伯德图的超前校正解析设计法根据所需闭环性能计算校正器的传递函数
(Analytical design method based on the Bode diagram of the lead compensator transfer function of the desired closed-loop performance computing Correction)
- 2012-05-27 17:18:50下载
- 积分：1
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imageBuilding
imageBuilding with matlab
- 2013-03-31 05:43:31下载
- 积分：1
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CMF
Classical matched filter CMF in correlator 4f
- 2015-03-27 06:34:27下载
- 积分：1
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matlab
这个压缩包主要介绍了matlaB的基础和应用，里面是一些基础内容(matlaB )
- 2012-05-15 23:00:27下载
- 积分：1
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ChannelDistoration
ChannelDistoration.m实现了相同的数字信号分别经过无失真信道、幅度失真信道、相位失真信道和幅、相失真信道时的输出信号畸变情况。(ChannelDistoration.m realized through the same digital signals without distortion channel, amplitude distortion channel, the channel phase and amplitude distortion, phase distortion of the output signal of the channel when the aberration.)
- 2014-11-04 09:43:07下载
- 积分：1
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space_time_code
一篇空时码的综述文章，以及给出了1*1，1*2，2*1，2*2接收发机天线结构的matlab仿真程序。(A space-time code synthesis article, as well as give a 1* 1,1* 2,2* 1,2* 2 receiver antenna structure of hair matlab simulation program.)
- 2009-03-16 15:57:14下载
- 积分：1
