摘要：当今社会，伴随着电子信息技术的快速发展以及雷达体制的更新换代，雷达信号的环境展现了高度集中、复杂多变的特点，对于如何正确分选雷达信号的研究变得越来越困难。在实际应用当中，使用传统的信号分选方法很难适应这个时代的变化。为了使雷达信号在错综复杂的环境下进行高效合理地分选，本文对于信号分选的关键算法进行了深入的研究。通过对于每个算法的提炼以及分析总结，研究了一种综合性能更加出色的综合分选算法。47462

本文扼要地分析了雷达信号分选所面临的复杂多变的信号环境，介绍了累计差值直方图、序列差直方图等常见的传统信号分选方法。并通过提炼，汲取了传统分选算法的优点，改进其自身的不足，深入研究了PRI变换法、修正PRI变换及综合分选算法。通过一系列仿真试验，其最终研究分析表明，经过改良的综合分选算法对于在复杂多变的信号环境中的抖动信号、脉冲信号能够更有效地进行分选。

毕业论文关键词： 累计差直方图；序列差直方图；PRI变换；修正PRI变换

The pulse signal sorting algorithm based on PRI of simulation and application

Abstract:With the rapid development of radar technology and the wide application of new system radar, radar signal environment shows the characteristics of dense, complex and changeable, the difficulty of the radar signal sorting is gradually increased. At present, the traditional method of signal sorting has can't satisfy the requirement of real-time processing. In order to be effective separation of radar signal under complex signal environment, this paper studies deeply the key algorithm of signal sorting, and fuzziness for single sorting algorithm separation results could not even correct sorting defects, research joint sorting algorithm.

Mainly analyzed the radar signal sorting facing the complex signal environment, this paper briefly introduces the cumulative difference histogram, the traditional method of signal sorting sequence difference histogram of common, and in view of the children of the harmonic problems in traditional separation algorithm, the PRI transform method, the modified PRI transform and comprehensive sorting algorithm. The simulation results show that the improved PRI transform method of dither signal of the complex signal environment, loss of pulse signal has good separation effect. Based on the improved PRI transform method and the method is validated by  computer simulation for complex signal environment is a lot of unknown radar signal has good separation effect.

Keywords: cumulative difference histogram;sequential difference histogram;PRI transform;modified PRI transform 

目录

摘要 i

Abstract ii

目录 iii

1   绪论 1

  1.1 论文的研究背景和意义 1

  1.2 论文的研究内容 2

2   MATLAB软件技术 3

  2.1 软件简介 3

  2.2 编程技术 4

3   经典算法的研究 5

  3.1 累计差值直方图(CDIF) 5

  3.2 序列差值直方图(SDIF) 8

4   关于PRI变换的算法 12

  4.1 PRI变换法 12

    4.1.1 PRI变换法的原理 12