【作者】 施龙飞；

【导师】 肖顺平； 王雪松；

【作者基本信息】 中国人民解放军国防科学技术大学 ， 电子与通信工程， 2002， 硕士

【摘要】 相控阵雷达是一个庞大、复杂的电子系统，对其进行逼真的模拟，必须分析其构成及工作原理，然后进行功能的分解、融合，转化为相应的数学模型；进而转换为适合于计算机运算的仿真模型，并进行仿真试验和校模。 本文针对相控阵雷达相干视频仿真系统中的几个关键技术问题进行了探讨，分析了信号在相控阵雷达系统中的传输、处理过程；在不影响仿真精度的前提下，进行了适当的简化和替代等效，构建了仿真系统的模块化结构；探讨了相干视频信号仿真中信号的表示方法，探讨了系统采样率选取的问题；研究了在仿真中如何实现信号的相参性，以及如何产生相参雷达压制式干扰信号的问题；分析了地基相控阵雷达的杂波特性，用零记忆非线性变换(ZMNL)和球不变随机过程(SIRP)两种方法模拟产生了相关非高斯杂波序列；对相控阵雷达数据处理中的航迹关联和跟踪滤波算法进行了研究，提出了在不同雷达事件类型下航迹的波门选取方法和配对规则，并对雷达探测球坐标系和跟踪滤波直角坐标系之间转换带来的观测误差相关问题进行了分析；针对相控阵雷达资源的有效利用问题，提出了一种基于新息范数的目标自适应数据率跟踪方法，计算机仿真试验验证了该方法的有效性。更多还原

【Abstract】 Several realization technologies of phased-array radar coherent video-frequency signal process simulation are studied in this paper. For phased-array radar is a bulky and complicated electronic system, its work principle and form must be clearly analyzed and then decomposed or fused. Then, phased-array radar system can be translated into homologous mathematical models and then the mathematical models are translated into simulation models which are suitable for computer. Lastly, the simulation models are tested and verified.Several critical technologic problems of coherent video frequency simulation system of phased-array radar are discussed in this paper. Firstly, transmission and processing procedure of signal in the phased-array radar system are analyzed and the simulation systemic modular structure of phased-array radar is founded. Secondly, the signal denotation in the coherent video simulation system is discussed and the problem of selecting the system sampling rate is also studied. Thirdly, the problem of how to realize signal coherency in the system simulation and how to generate broadband jamming signal of coherent radar are studied. Fourth, noise characteristic of phased-array radar is analyzed and non-Gaussian correlation noise data is generated with the method of zero- memory non-linear transformation(ZMNL) and spherical invariant random processing (SERF).Lastly, association algorithm and tracking filtering algorithm in the data processing of phased array radar are studied. The method of selecting tracking gate and the partnership rule are presented and the problem of observation error with the rectangular coordinate system and the spherical coordinate system is analyzed. According to the problem of resource efficient utilization of phased array radar, a tracking technology of target adaptation adapting data rate based on the innovation norm is presented and the validity is validated with the computer simulation test.更多还原