基于MSK与MIMO技术的高速移动通信图像传输系统性能研究

摘要

MSK is widely used in wireless communication field with the advantage of the constant envelope and continuous phase. In the High-speed mobile transmission system, people often use BPSK or QAM, but the performance can't satisfy people's need. In order to meet people ‘s need of the smoothly video data in the high-speed mobile transmission system. This research designed a high speed mobile image transmission system based on MSK and MIMO techniques and the simulation of this system has been conducted. The simulation results show that: In the same MIMO configuration of the parameters, when BER=10-4, MSK modulation has about 6dB performance gains compared to BPSK modulation and the quality of the image has greatly improved.%MSK信号具有包络恒定、相位连续的优点,被广泛应用于无线通信领城。在以往的高速移动系统，人们采用的调制一般是BPSK和QAM，性能上并不能满足人们的需求。为了满足人们使用高速移动通信系统传输清楚视频数据的需要，本文设计了基于MSK与MIMO技术的高速移动通信图像传输系统，并对该系统进行了仿真实验。实验结果表明，在同样的MIMO参数配置下，在误码率为10-4的时候，采用MSK调制比BPSK有6dB的提高，图像质量有较大的改善。