天线组阵信号处理的仿真研究

Simulation Study on Antenna Arraying Signal Processing

天线组阵技术是提高深空微弱信号接收信噪比（SNR）的一种有效途径，也是未来深空通信中的重要发展方向之一。本文介绍天线组阵信号的基本合成方案，用Matlab软件对合成方案进行了仿真比较，重点研究各合成方案性能恶化与调制指数、载波恶化、副载波恶化、符号恶化的关系。

Antenna arraying technique is an effective approach to improve receiving signal to-noise ratio （SNR） of weak signal at deep space, also is one of the important development directions in the area of deep-space communication in the future. This paper introduces the basic combining scheme of the antenna arraying signals, and the simulating comparison for the combining scheme of various arraying signals was implemented by using Matlab software tools with the emphasis on the research of the relations between the performance deterioration of the various combining schemes and the modulation index, carrier deteriorating, sub-carrier deteriorating, symbol deteriorating.