Description: There are two files in the zip folder. bpsk_spread.m and jakesmodel.m
Steps for simulation:
1] Run jakesmodel.m first
2] Then run bpsk_spread.m .
3] Note that during the first run bpsk_spread.m has no rayleigh fading.This is because the corresponding code has been commented
4] The resulting performance is stored in BER_awgn.
5] Now uncomment the Rayleigh Fading code in bpsk_spread.m file.
6] Same time comment BER_awgn (line 112) and uncomment BER_ray variable.
7] Run the simulation.
To compare the perfromances of the receiver using DSSS plot the BER_awgn and BER_ray
>>semilogy([1:8],BER_awgn(1:8), g* )
hold on
semilogy([1:8],BER_ray(1:8), -.b* )
hold on
grid on
-There are two zip files in the folder. Bpsk_ spread.m and jakesmodel.m Steps for simulatio n : 1] Run jakesmodel.m first 2] Then run bpsk_spre ad.m. 3] Note that during the first run bpsk_spr ead.m has no Rayleigh fading.This is because th e corresponding code has been commented 4] The r esulting performance is stored in BER_awgn. 5] Now uncomment the Rayleigh Fading code in bpsk_ spread.m file. 6] Same time comment BER_awgn (l 112 produced mostly in developed areas) and uncomment BER_ray variable. 7] Run the simulation. To compare the perfromances of the receiver using DSSS plot and the BER_awgn BE R_ray Platform: |
Size: 3072 |
Author:朱振希 |
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Description: 扩频系统的MATLAB源代码,实现无线通信系统扩频的功能-spread spectrum systems MATLAB source code, wireless spread-spectrum communication system function Platform: |
Size: 1024 |
Author:肖潇 |
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Description: 此代码仿真了一个语音输入输出系统，语音信号经过AD转换后，经过DSSS调制解调后，通过DA转换还原输入的声音，每一步的的波形都可以观测，对实际DSSS系统设计有很大的参考价值-This code simulation of a voice input and output systems, speech signal after AD conversion after DSSS modem through DA conversion to restore the input voice, each step of the waveform can be observed, the actual design of DSSS systems have great reference value Platform: |
Size: 416768 |
Author:joshua |
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Description: 用matlab进行直序扩频通信系统误码率的仿真分析PN码同步方法的比较与仿真-Using matlab for Direct Sequence Spread Spectrum Communication System Simulation and Analysis of bit error rate PN code synchronization methods and simulation Platform: |
Size: 12288 |
Author:吴胜军 |
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Description: 可以产生PN码序列，可用于直扩通信等需要PN序列的地方。-Can generate PN code sequence, can be used for DSSS communications needs of the local PN sequence. Platform: |
Size: 1024 |
Author:renxiaomin |
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Description: matlab编写的有关直接序列扩频的代码，得出采用DSSS扩频的误码率-matlab prepared by the direct sequence spread spectrum code, come to the use of spread spectrum DSSS BER Platform: |
Size: 1024 |
Author:吴琼 |
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Description: 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 Sequence Spread Spectrum, BPSK modulation, channel for AWGN (additive white Gaussian noise channel) channel (AWGN channel: do not consider communication channel signals, described by the scope of broadband wireless random statistical noise.). At the receiving end for despreading, demodulation, judgments, through the simulation to be one of a user' s bit error rate and SNR of the simulation results. Platform: |
Size: 9216 |
Author:jehuty |
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Description: dsss的matlab代码和c源码，对刚开始接触扩频的朋友有帮助，用于快速入门，加深理解-dsss the matlab code and c source code, for spreading a friend just came into contact with helpful for quick entry, to deepen understanding of Platform: |
Size: 2048 |
Author:将乌龟 |
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Description: 设计一个有干扰的直接序列扩频通信系统， PN码由m序列产生器产生，经过高斯白噪声信道。在接收端接收到的信号包括“有用信号+高斯白噪声+干扰”，将接收信号进行解扩，判决，得到用户的信号检测结果，绘制不同的扩频增益（增益值为10，30，50）下，误比特率随信噪比Eb/N0的变化曲线。-Design of a direct sequence spread spectrum interference system, PN code generated by the m sequence generator, after white Gaussian noise channel. Receives the signal at the receiver, including " useful signal+ Gaussian white noise+ interference" , will receive the signal despreading, judgments, get the user' s signal test results, draw a different spreading gain (gain value of 10,30, 50), the BER curves with the signal to noise ratio Eb/N0. Platform: |
Size: 7168 |
Author:皓月 |
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Description: (1) 产生数值为±1的用户随机数据；给出Matlab下对应的模块；
(2) 产生并给出64×64的Walsh矩阵，作为用户接入的扩频码；
(3) 利用上述一个用户的扩频码和用户数据演示扩频过程；给出Simulink工作框图；
(4) 利用FFT，计算并画出基带数据和扩频信号的频谱（在一个图中给出）；
-(1) value of ± 1 generated random data users given under the corresponding Matlab module (2) generation and gives the Walsh 64 × 64 matrix, as the user access to the spreading code (3) the use of the a user' s spreading code and spread spectrum user data presentation process given work Simulink block diagram (4) the use of FFT, calculate and draw the base-band spectrum data and the spread spectrum signal (given in a diagram) Platform: |
Size: 9216 |
Author:芊屹 |
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Description: 直扩信号BPSK的仿真，采用异或移位的算法实现PN码达到扩频的目的-BPSK DS signal simulation, using different algorithms, or shift the PN code to achieve the purpose of spreading Platform: |
Size: 1024 |
Author:关月 |
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Description: 该源码是直接序列扩频通信的仿真matlab代码。希望对你有所帮助。-This source is the direct sequence spread spectrum communication simulation of matlab code. I hope this helps.
Platform: |
Size: 1024 |
Author:谭盛龙 |
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Search - DSSS matlab code