文档介绍：西安电子科技大学
硕士学位论文
相关干涉测向信号处理器的设计与实现
姓名:张小东
申请学位级别:硕士
专业:电路与系统
指导教师:冯小平
20100101
摘要
摘要
近年来,无源定位技术越来越受到人们的关注。在军事方面,它无疑是雷达很
好的补充,由于它不发射信号,仅靠接收到的信号判断目标的位置,就不会受到
干扰和攻击,甚至不会被察觉。所以无源定位技术已成为电子对抗最重要的技术
之一。
高分辨方位估计是信号处理的重要内容之一,随着微电子集成及数字技术的
发展,测向技术在对各种辐射源如通信、雷达信号定位等许多领域有着广泛的应
用前景。论文论述了高分辨相关干涉仪测向的相关理论,其中主要对以下内容进
行了研究:
以五元圆阵为模型,详细论述了相关干涉仪的测向原理。同时,给出了相关
干涉仪DOA(Direction Of Arrival)的估计算法。通过理论分析和仿真,证明该算
法可明显提高DOA估计性能。试验结果表明,该方法适应能力强、运算量小、精
度高,适于硬件实现。
针对ADI 公司虎鲨处理器的性能和特点,提出由 4 片 TS101 芯片构成的信号
处理系统;对各 DSP 间的连接方式、数据传输方式和软件控制流程进行了分析。
该处理器已成功应用于某车载式频谱监测测向设备,并行实现低通滤波、双通道
相位计算与相关等处理。本文对主要信号处理模块在系统中的实现算法进行了分
析,估计了主要运算量。运行结果表明,多 DSP 构成的系统不仅可行,而且结构
简单、易于实现且处理能力强。

关键词:ADSP-TS101 双通道相关干涉仪测向
Abstract
Abstract
In recent years, passive location technology is more and more attended by people.
On the military, it is undoubtedly a very plement of the radar, because it does
not transmit signals, relying on the received signal to determine the target's position, it
will not be disturbed and attacked, and even not be detected. Therefore, passive location
technology has e the most important electronic countermeasure technologies.
As an important part of the signal processing, high-resolution direction of arrival
estimation technique has a promising perspective in many fields such munication
and radar, with the development of the microelectronic and digital techniques. The
dissertation studies the theories of high-resolution DOA (Direction Of Arrival)
estimation for signal processing. The main results and achievements are summarized as
follows:
This paper uses a five dipoles circular array as model to analyze the principle of
correlative interferometer direction finding. Meanwhile, it also illuminates the
calculation for DOA. Theoretical analysis and simulation show that the algorithm can
significantly improve the DOA estimation performance. The results indicate that the
method is adaptable, computing lessly, high precision