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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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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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这个代码描述了QPSK信号的解调模型的过程。-This code describes the model for QPSK signal demodulation process.
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实现随机信号序列的QPSK调制和相干解调,观察信号的星座图,计算误比特率和误码率。-this code is designed for the signal s QPSK modulation and demodulation exactly. Meanwhile, the BER and SER were estimated and drawed.
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有QPSK的调制解调,信噪比,信道等,使用matlab代码编写和绘图-There QPSK modulation and demodulation, signal to noise ratio, channel, etc., using matlab code writing and drawing
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QPSK的调制解调源码,matlab编程,在高斯噪声的影响下-Under the QPSK modulation and demodulation code, matlab program, the impact of the Gaussian noise
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QPSK调制解调matlab 代码,简单易懂,自己写的。-QPSK modulation and demodulation matlab simulation, write your own, and the code is simple and easy to understand.
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QPSK信号的调制及其解调,代码全面,包括信号的傅立叶变换-QPSK modulation and demodulation of the signal, the code comprehensive, including Fourier transform signal
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一个简单的OFDM程序,有IFFT/FFT,QPSK调制解调,加入了高斯噪声,加入循环前缀。并且每行程序都有的详细注释,简单易懂。扩展性比较强,可以改写成自己的代码。-A simple OFDM procedures, there are IFFT/FFT, QPSK modulation and demodulation, joined the Gauss noise, adding a cyclic prefix. And each line of the program are detai
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这是一个完整的matlab下的扩频通信系统的仿真源代码。包括QPSK调制、m序列生成、载波调制、解调、解扩等操作。非常完整,代码通过调试,可以直接运行。-This is a complete matlab under the spread spectrum communication system simulation source code. Including QPSK modulation, m sequence generation, modulation, demodulation,
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一种数字调制方式qpsk的调制解调代码,可进行相应参数设置(A digital modulation method qpsk modulation and demodulation code, can be set accordingly)
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