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Alamoutiwork
程序的主要功能是做了一定范围的信噪比下,对每个信噪比:随机信号QPSK调制;
根据Alamouti方案的矩阵进行编码;发送信号经过瑞利信道和加入高斯白噪声;
接收信号采用最大比合并的方法;最后对合并信号进行最大似然判决并求误符号率。
结果表明10^-3对应大约12->13dB(Procedure main function is to do a certain range of SNR for each signal to noise ratio: random signal QPSK modulation program in accordance with Alamouti coding matrix send signals through Rayleigh channel and adding Gaussian white noise received signal using maximal-ratio combining method Finally the combined signal and the maximum likelihood decision for symbol error rate. The results showed that about 10 ^-3 corresponds to 12-> 13dB)
- 2007-11-01 00:32:10下载
- 积分:1
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matlab-shangbiaofenge
该程序用matlab编写实现对商标文字分割和识别。(the procedures used to achieve the preparation of Matlab trademark characters segmentation and recognition.)
- 2007-05-20 14:36:44下载
- 积分:1
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LDA
Linear Discriminant Analysis
- 2012-06-19 21:33:27下载
- 积分:1
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M
字典树的基本功能是用来查询某个单词(前缀)在所有单词中出现次数的一种数据结构,它的插入和查询复杂度都为O(len),Len为单词(前缀)长度,但是它的空间复杂度却非常高,如果字符集是26个字母,那每个节点的度就有26个,典型的以空间换时间结构。(The basic function of the dictionary tree data structure is used to query a number of times a word (prefix) appears in all the words, which insertion and query complexity are O (len), Len is a word (prefix) length, but its space complexity is very high, if the character set is 26 letters, and that the degree of each node will have 26, the typical structure of space for time.)
- 2013-11-29 14:28:52下载
- 积分:1
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matlab_api
simple api source code using matlab
- 2012-05-27 03:33:50下载
- 积分:1
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TFA
TFA codes . STFT for 2D images Short term fourier transform for images. Short term fourier transform for images
- 2011-11-25 19:59:06下载
- 积分:1
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newRound
creates round of leach protocol in matlab
- 2015-03-18 16:03:08下载
- 积分:1
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MIMO
本程序主要仿真MIMO系统的ZF以及MMSE算法,在不同信噪比下的误码率。(This program mainly ZF and MMSE algorithm of multi-input multi-output (MIMO) system simulation, under different SNR ber.)
- 2015-03-30 19:41:01下载
- 积分:1
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408_Final
it s a matlab code for reduce gray level
- 2009-04-10 04:14:46下载
- 积分:1
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7.31_GUI
云计算是一种商业计算模型。它将计算任务分布在大量计算机构成的资源池上,使各种应用系统能够根据需要获取计算力、存储空间和信息服务。
(Cloud computing is a business computing model. It computational tasks are distributed in a large number of computer resources of Ikegami, a variety of applications based on the need for computing power, storage space and information services.)
- 2012-04-25 18:46:28下载
- 积分:1