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4下载:
一个四用户的扩频通信系统,扩频增益为N=16,采用Walsh码进行直接序列扩频,BPSK调制,无线信道为AWGN(加性高斯白噪声信道)信道(AWGN信道:不考虑通信信道信号时,由宽频范围描述的统计随机无线噪声。)。在接收端进行解扩,解调,判决,通过仿真得到其中一个用户的误比特率与信噪比的仿真结果。,A four-user spread spectrum communication system, spreading gain for N = 16, using Walsh code Direct
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5下载:
LDPC码性能的matlab仿真程序(BPSK调制,AWGN噪声)-Performance of LDPC code matlab simulation program (BPSK modulation, AWGN noise)
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用matlab软件仿真了从卷积码编码,QPSK调制,AWGN信道,QPSK解调,以及Viterbi译码。-Using Matlab Simulate from the coding of convolutional code,Qpsk modulation ,AWGN channel ,Qpsk demodulation and Viterbi decoding。
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Turbo编码16QAM在AWGN信道中的性能Turbo码份量码为[1,17/15],码率为1/2,采用随机交织器-the encoder and decoder of the Turbo code
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代码包含的主要内容是AWGN信道上BPSK,QPSK,16QAM的调制解调,以及误码率计算过程,其中还有OFDM调制在信道上传输的仿真内容-Code contains the main contents of AWGN channel BPSK, QPSK, 16QAM modulation and demodulation, and bit error rate calculation process, in which there are OFDM modulation in the cha
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The code below creates a frequency-flat Rayleigh fading channel object and uses it to process a DBPSK signal consisting of a single vector. Notice that the example uses filter before awgn this is the recommended sequence to use when you combine fadin
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The zip file contains
1. A 128x256 Regular (3,6) H matrix (if you need to simulate other codes, need to write your own code for generating those parity check matrices). The file 128x256regular_v6.mat is for those using Matlab 6.5.
2. Files for
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BPSK与模拟通信系统相比,数字调制和解调同样是通过某种;在大多数情况下,数字调制是利用数字信号的离散值去;三种数字调制方式在抗干扰噪声能力和信号频谱利用率;2BPSK调制原理;二进制相移键控(BPSK)是利用基于MATLAB中的BPSK误码性能研究;
MATLAB提供了卷积码的convenc和相应的Viterbi译码函数vitdec,可以快速地得到编译码的结果。(BPSK compared with the analog communication system, digital modul
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