基于DSP平台的单脉冲雷达测距系统研究

【作者】 钱志强；

【导师】 陆锦辉； 徐敏；

【作者基本信息】 南京理工大学 ， 电子与通信工程， 2006， 硕士

【摘要】 本文是结合本所某在研雷达进行撰写的，主要研究了单脉冲精密跟踪测量雷达距离跟踪测量技术，详细介绍了测距系统典型的工程技术指标、组成及工作原理。结合实际雷达给出了测距系统的一个工程设计实例，对测距系统的主要技术指标进行了理论分析及计算，并对距离回路的跟踪性能进行了仿真分析。除此以外，还介绍了基于相位测距的游标测距技术的工作原理。本文首先，对单脉冲精密跟踪测量雷达技术和数字信号处理器技术进行了综述，并介绍了雷达距离跟踪测量技术的发展概况；其次，结合工程实践给出了测距系统典型的工程技术指标要求，并详细介绍了测距系统的组成及工作原理，特别针对距离消模糊、距离避盲、应反转换、多站工作等特殊工程问题，给出了具体实用的解决方案；接着，介绍了游标测距技术的基本原理及实现方法；然后，给出了一个基于DSP平台的单脉冲雷达测距系统的工程设计实例；最后，给出了精密跟踪测量雷达Ⅱ型距离跟踪回路等效噪声带宽公式的数学推导和距离跟踪回路的性能仿真曲线图。更多还原

【Abstract】 The dissertation mainly researches the range tracking and measuringtechnique of a monopulse precision tracking instrumentation radar based onone of the radars being developed inour institute. It introduces the typicalengineering specifications, composing and operating principles in details.It analyses and calculates theoretically the main technique specificationsof the ranging system based on an engineering design of a practical radar.It also simulates and analyses the tracking performance of the range loop.Moreover, the dissertation describes the operating principle of the Vernierranging technique based on phase ranging method.The dissertation summarizes the techniques of monopulse precisiontracking instrumentation radar and digital signal processing, introducingthe development of the radar range tracking and measuring technique. Then itpresents the engineering technique specifications of a typical ranging systembased on the practical engineering. It introduces the composing and operatingprinciple of the ranging system, especially details the practical methods ofspecial engineering problems such as range ambiguity resolution, blind rangeavoidance, response/reflection converting, multi stations. After this, thedissertation describes the essential principle and realization method of theVernier ranging technique. It presents a practical example of a monopulseradar’s ranging system engineering design based on the DSP platform. At lastthe dissertation gives the mathmetical deductionthe formula of theⅡtyperange tracking loop equivalent noise bandwidth of the precision trackinstrumentation radar and its feature simulation curve.更多还原