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trans_sigPnoisePinterference
根据直扩原理，首先有随机数发生器产生一系列二进制信息数据（+1，-1），每个信息比特重复Lc次，Lc对应每个信息比特所包含的伪码片数，包含每一比特Lc次重复的序列与另一个随机数发生器产生的PN序列c(n)相乘。然后在该序列上叠加高斯白噪声和形式为i(n)=Acosw0n余弦干扰下次信号，切余弦干扰信号的振幅满足条件A<Lc。在解调器中进行与PN序列的互相关运算，并且将组成各信息比特的Lc个样本进行求和。加法器的输出送到判决器，将信号与门限值0进行比较，确定传送的数据为+1还是-1，计数器用来记录判决器的错判数目。(According to the principle, first some straight expansion random number generator produces a series of binary data (+ 1-1), each information bit repetitive Lc times, Lc for each information bit contains PN code piece count, embraces each bit Lc times repeated sequence and another random number generator produces PN sequence c (n) multiplication. Then in the sequence superimposed on gaussian white noise and forms as I (n) = Acosw0n cosine interference next time signal, cut cosine interfering signal amplitude satisfy conditions A < Lc. In the modem with the cross-correlation operation PN sequence, and the information will comprise the Lc a sample bits peace. The output of the adder judgment device, will signal to compare with threshold 0 data transmitted, determine for+ 1 or-1, counter is used to record the number victimised judgment.
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- 2011-04-20 10:18:47下载
- 积分：1
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function-in-matlab
介绍matlab中各种运算函数，方便基本函数的查找，方便编程和仿真(Introduced the a variety of arithmetic function in the matlab, convenient the the Basic Function in to find, convenient the programming and simulation)
- 2012-06-19 13:50:16下载
- 积分：1
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adaptcluster_kmeans
MATLAB code for Adaptive kmeans Clustering for Color and Gray Image.
- 2015-02-03 12:43:14下载
- 积分：1
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101259397BFSK_AWGN
simulink仿真学习的必备教程，里面有许多例题，学完你就是高手(simulink simulation study of the essential curriculum, there are many examples of school after you are a master!)
- 2009-05-05 18:16:28下载
- 积分：1
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C_C___Source_Line_Counter_src
代码行数统计，一个非常有用的东西，希望各位喜欢(code a few statistics, a very useful thing, I hope you like)
- 2006-10-25 12:40:48下载
- 积分：1
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Nonlinear-dynamics-vibration
非线性动力学-分岔图-matlab-程序，弹簧质量系统在简谐激励作用下的的首破振动(Nonlinear dynamics- bifurcation diagram-Matlab-program, the spring mass system under harmonic excitation is broken vibration)
- 2012-06-04 11:17:01下载
- 积分：1
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matlab
it describes the basic matlab codes and commands
- 2010-10-16 17:35:23下载
- 积分：1
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model2
说明： 管道运输问题 能够实现优化 从而帮助我们找到最短路径(Pipeline transportation problem can be optimized in order to help us find the shortest path)
- 2008-09-21 11:55:45下载
- 积分：1
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pso
自适应的粒子群优化算法，作毕业设计的同学可以看看(Adaptive Particle Swarm Optimization for graduate design students can see)
- 2012-05-23 13:44:16下载
- 积分：1
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BP_decode
在AWGN信道下的LDPC码的二进制BP算法译码(AWGN channel in the LDPC decoding algorithm for binary BP)
- 2007-06-15 15:46:49下载
- 积分：1
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