【作者】 张莉；

【导师】 吴顺君；

【作者基本信息】 西安电子科技大学 ， 信号与信息处理， 2006， 硕士

【摘要】 目前,空时二维自适应信号处理(STAP)已成为雷达领域的研究热点之一,是新一代高性能机载雷达的一项关键技术。对这技术的研究已进行了二十多年,其核心问题是有效地抑制杂波和干扰。新一代雷达信号处理系统对处理性能的高要求使得大规模实时并行信号处理势在必行。随着DSP器件的发展、数字信号处理算法的提高以及通用雷达信号处理平台的研制,雷达信号处理的内容将更多的从硬件转换到软件工作。本文是基于对TS101列数字信号处理器以及其开发软件、硬件平台的了解和掌握,对雷达信号处理基本理论的学习,用汇编语言实现了雷达信号处理中自适应波束合成(ADBF)模块,并且按照一定的参数对程序模块进行仿真,给出了仿真和分析的结果。介绍了空时二维自适应信号处理的内容,对它的原理及实现方法做了详细的讨论。数字波束形成技术及超大规模集成电路的迅速发展,为精确控制空时自适应权值和加快处理速度提供了保障,从而为空时二维自适应信号处理的实际应用提供了有利条件。更多还原

【Abstract】 At present, adaptive spatial-temporal processing (STAP) has been paid more attention on, and become the pivotal technique of the advanced high-powered AEW radar. The high performance of the advanced radar signal processing should be realized by high speed real-time parallel signal processing system. With the development of DSP and improvement of signal process arithmetic and development of general-purpose radar signal processor, most tasks of radar signal process are transferred from hardware to software. The author begins with the knowledge of ADSP-TS101 DSP and its development environment, including software and hardware environment. Then based on the basic theories and principles of radar signal process, the author accomplishes the programs of adaptive beam forming (ADBF). The analysis of their performance and results of simulation are given at the end of every section. Also the theory of the STAP and some means to realize it are discussed in detail. The rapid development of DBF and VLSI has guaranteed to control the adaptive weight and accelerate the processing speed. Accordingly, it gives the practical application of STAP the advantage.更多还原