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Description: 用来产生M序列的MATLAB程序，其周期为31位，结合pn.m可生成GOLD序列。-used to produce M sequence MATLAB, cycle 31. combining pn.m GOLD sequences can be generated.
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Size: 811 |
Author: 罗旋 |
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Description: matlab中的pn码仿真
PN码的仿真实验
pn码在通信系统中占据了重要的位置，在即将到来的3G通信中比较重要-the pn Matlab simulation code PN code simulation pn code in communications systems occupy an important location in the upcoming three G communications more important
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Size: 72051 |
Author: 陈小飞 |
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Description: 用Verilog语言生成7位的小m序列，产生pn码
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Size: 2703 |
Author: 楚鹤 |
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Description: 用来产生M序列的MATLAB程序，其周期为31位，结合pn.m可生成GOLD序列。-used to produce M sequence MATLAB, cycle 31. combining pn.m GOLD sequences can be generated.
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Size: 1024 |
Author: 罗旋 |
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Description: 用遗传算法求解背包问题是南京航空航天大学信息与计算科学专业编写的.本程序利用遗传算法来求解背包问题.采用二进制字符串编码,1表示选择物体,0则不选择.
背包问题描述:在M件物品取出若干件放在空间为W的背包里，每件物品的重量为W1，W·2……Wn，与之相对应的价值为P1,P2……Pn。求出获得最大价值的方案。注意：在本题中，所有的重量值均为整数。-genetic algorithm knapsack problem is the Nanjing University of Aeronautics and Astronautics, Information and Computing Science prepared. The procedure the use of genetic algorithms to solve knapsack problem. binary string encoding, an option objects, 0 no choice. Knapsack Problem Description : M items removed several pieces on the space-W backpack, Each of the weight W1, W 2 ... Wn, the corresponding value of P1, P2 ... Pn. Sought to gain maximum value of the program. NOTE : In this issue, all the weight values are integers.
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Size: 25600 |
Author: 王杰 |
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Description: 关于simu1:
在simlink运行之前的初始化过程中，完成了信道时延和幅度的估计，多径合成权系数估计
多径合成采用可选EG/MR/MMSE合成
信道可选白噪声信道AWGN和IEEE80.215.3a UWB标准信道模型(CM1-CM4)但为了简化，
这里采用了IEEE80.215.3a给出了信道模型中的仿真数据包(如果你是作超宽带的，信道模型程序和数据可从IEEE80.215.3a网站获取)
和大部分仿真一样，模型中的Eb/No指的是单比特信息符号携带的能量和噪声的比例，监督的讲，在AWGN信道中，Eb/No为4.31db时,误码率0.01
关于zslsimu直接运行simuuwb.m可看到结果)
显然和simu1一样，只是增加了.m文件，修改.m文件中的重要参数:多径数、PN序列长度、PN序列、单个信息码元宽度Tb(单位ns)、每个脉冲宽度Tc(单位ns)、系统的仿真精度Ts(单位ns)、仿真时间
chanidx=1:1是因为考虑信道数据文件太大，不好上传，想得到精确的仿真，同一个信道类型(chantype)，最好仿真100次实现，信道文件可由UWB标准组织下载-on simu1 : simlink operation before the initialization process, completed the channel delay and the magnitude of the estimates, Multi-Path weights estimated Drive synthesis using the optional EG/MR/Synthesis MMSE Channel optional white noise channel AW GN and IEEE80.215.3a UWB channel model (CM1- CM4) in order to simplify IEEE80.215.3a used here is a channel model for the simulation data packets (if you were for extra-wide belt, channel model and data from IEEE80.215.3a website access) and most simulation, Model of Eb/No refers to the single-bit symbols to carry the message of energy and noise ratio, supervision speaking, In AWGN channel, Eb/No for 4.31db, BER 0.01 zslsimu directly on the operation simuuwb.m can see the result) clearly and si mu1, only increased. m document change
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Size: 39936 |
Author: 海涛 |
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Description: 基于PN序列的同步仿真链路（simulink+m files），收端算法为接受序列与本地序列求滑动相关。-PN sequence based on the synchronous Link Simulation (Simulink m files), Algorithm-admission to accept the sequence with the local demand sliding related sequences.
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Size: 22528 |
Author: 徐 |
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Description: matlab中的pn码仿真
PN码的仿真实验
pn码在通信系统中占据了重要的位置，在即将到来的3G通信中比较重要-the pn Matlab simulation code PN code simulation pn code in communications systems occupy an important location in the upcoming three G communications more important
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Size: 71680 |
Author: 陈小飞 |
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Description: fGenerateNavigationData.m产生导航电文
mls_generator.m产生扩频伪码
boc_edit.m和boc_5_28.m分别实现BOC调制-fGenerateNavigationData.m generate navigation messages generated mls_generator.m spread spectrum PN code boc_edit.m and the realization of BOC modulation, respectively boc_5_28.m
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Size: 3072 |
Author: lcx |
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Description: 用Verilog语言生成7位的小m序列，产生pn码-Verilog language used to generate seven small m sequence code generated pn
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Size: 2048 |
Author: 楚鹤 |
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Description: 一个PN序列发生器，大M序列，供参考学习，-A PN sequence generator, the M series, for reference study,
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Size: 1024 |
Author: yiyi |
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Description: 3种pn序列的产生代码，包括：m序列，gold序列，混沌序列。-Three kinds of pn sequences generated code, including: m sequence, gold sequences, chaotic sequences.
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Size: 1024 |
Author: weiwei |
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Description: 本程序可生成直接序列扩频中所需的PN伪码m序列和golden序列-This procedure can be generated in direct sequence spread spectrum PN code required PN sequence and golden sequence m
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Size: 1024 |
Author: huangyi |
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Description: M序列与GOLD序列仿真对比得出幅频结果的对比图-M sequence with the sequence GOLD Simulation results obtained amplitude-frequency comparison chart
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Size: 16384 |
Author: 希罗 |
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Description: The .m file simulates a Spread-Spectrum Modulation Trx/Rcx system, in which, the phase of the pseudo-random sequence generated in the transmitter and used to encode the data stream is unknown a priory at the receiver.A parallel search strategy is employed to locally determine it in the place. It works as here: selecting the maximam-energy low-pass filtered signal of the set of all hypothesied despreaded ones using different hypothesized phases for the PN-sequence.The simulation can be growed in several ways including considering various types of noise and jammings or also designing better filters.
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Size: 3072 |
Author: Rafal |
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Description: 伪随机码或称PN码，是扩频通信中不可缺少的一种序列。扩频通信，简单的说来就是通过一组相关性很强的伪随机序列，使原有的信号按照伪随机序列的特性出现。从波形上看，原有信号完全淹没于随机的噪声中，达到隐藏信号和抗干扰的目的。接受方只要有相同的伪随机序列，就可以通过伪随机序列很强的相关性将信号还原出来。而m序列，是扩频系统中最长用的伪随机序列。下面的代码就是基于matlab的生成m序列的代码，通过改变初始多项式的值，就可以生成不同阶数的m序列。-Pseudo-random code or PN code, spread spectrum communication is indispensable to a sequence. Spread spectrum communication, a simple to say that the adoption of a group of highly related to pseudo-random sequence, so that the original signal in accordance with the characteristics of pseudo-random sequence there. From the wave point of view, the original signal completely submerged in the random noise to hide the purpose of signal and interference. As long as the recipient has the same pseudo-random sequence, the pseudo-random sequence can be a strong correlation to restore the signal out. And m sequence spread spectrum system is the longest of the pseudo-random sequence used. The following code is generated based on m sequences of matlab code, by changing the value of the initial polynomial, we can generate a different order of the m sequence.
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Size: 1024 |
Author: fortunewjh0217 |
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Description: 最基本的直接扩频中如何用m语言编写语句产生pn序列-generate pn sequence
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Size: 201728 |
Author: 方婕 |
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Description: DS展頻 with pn sequence-DS spread spectrum with pn sequence
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Size: 1024 |
Author: Ray Hung |
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Description: 产生扩频所需的pn码， pn码在通信系统中占据了重要的位置，在即将到来的3G通信中比较重要
-Pn code needed to generate spread spectrum
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Size: 71680 |
Author: zhongtao |
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Description: m序列产生子函数
gold序列产生子函数
自相关函数和互相关函数计算子函数
调用子函数[s,k,pn]=m(c,b0)产生第二条m序列-function [Rm]=Rm(golda,goldb) 自相关函数和互相关函数计算子函数
N=11
n=2^N-1
Rm(1)=sum(golda.*goldb)/n
for k=1:n-1
Rm(k+1)=sum(golda.*circshift(goldb,[0,k]))/n
end
Rm
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Size: 1024 |
Author: SD |
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