Description: 有关使用SIMULINK设计的DS-CDMA的rake接收机-Relating to the use of SIMULINK design of DS-CDMA receiver of the rake Platform: |
Size: 11264 |
Author:张敏 |
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Description: In this project we analyze and design the minimum mean-square error (MMSE) multiuser receiver for uniformly quantized synchronous code division multiple access (CDMA) signals in additive white Gaussian noise (AWGN) channels.This project is mainly based on the representation of uniform quantizer by gain plus additive noise model. Based on this model, we derive the weight vector and the output signal-to-interference ratio (SIR) of the MMSE receiver. The effects of quantization on the MMSE receiver performance is characterized in a single parameter named 鈥漞quivalent noise variance鈥? The optimal quantizer stepsize which maximizes the MMSE receiver output SNR is also determined.-In this project we analyze and design the minimum mean-square error (MMSE) multiuser receiver for uniformly quantized synchronous code division multiple access (CDMA) signals in additive white Gaussian noise (AWGN) channels.This project is mainly based on the representation of uniform quantizer by gain plus additive noise model. Based on this model, we derive the weight vector and the output signal-to-interference ratio (SIR) of the MMSE receiver. The effects of quantization on the MMSE receiver performance is characterized in a single parameter named 鈥漞quivalent noise variance鈥? The optimal quantizer stepsize which maximizes the MMSE receiver output SNR is also determined. Platform: |
Size: 147456 |
Author:prasad |
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Description: 设计DS-CDMA一种具体的码分导引辅助的信道估计方法，接收机分别采用等均益合并、最大比合并。用Simulink进行仿真，测量BPSK的误码率性能，画出比特信噪比与信道估计均方误差的关系曲线，画出比特信噪比与误码率的关系曲线-Design of DS-CDMA code at a specific guide-assisted channel estimation method, the receiver, respectively, the combined use of all benefits, maximal-ratio combining. Using Simulink simulation, measurement BPSK BER performance, draw-bit signal to noise ratio and channel estimation mean square error curve, draw-bit signal to noise ratio and bit error rate curve Platform: |
Size: 299008 |
Author:华建 |
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Description: 这是关于直接序列扩频通信系统的DS-CDMA方式的仿真设计，系统主要分为发送机和接收机两部分，包括17个可用于SIMULINK仿真的S-FUNCTION代码M文件，和一个MATLAB源程序的DOC文件，程序都有详细的注释。-This is a direct sequence spread spectrum communication system on the DS-CDMA mode simulation design, the system can be divided into two parts, transmitter and receiver, including 17 for the S-FUNCTION SIMULINK simulation of M code files, and a MATLAB source code The DOC file, the program has detailed notes.
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Platform: |
Size: 26624 |
Author:masong |
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Description: This Paper is concerned with the study of the performance of DPSK (differential phase shift keying)
Modulation Technique using AWGN(Additive white gaussian noise) channel. The DPSK has remarkable
features such as limited bandwidth and constant envelope, which are of importance for mobile communication
systems for providing the output according to our needs and requirement. In this study we evaluated the Bit
error rate performance of the CDMA system by designing the CDMA system using SIMULINK Tool of the
MATLAB software and study the performance characteristics of DPSK modulated CDMA system which are
helpful for raising the level of present day communication systems, In order to design our DPSK modulated
CDMA system we varied only modulation blocks of simple CDMA transmitter and receiver sections. Platform: |
Size: 705536 |
Author:j |
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