基于LFMCW体制的近程战场警戒雷达研究

发布时间：2018-05-26 18:31

本文选题：近程战场警戒雷达 + 单兵侦察雷达　；参考：《西安电子科技大学》2014年硕士论文

【摘要】：本文着眼于近程战场警戒雷达在军事斗争中不可替代的近战作用和在当前军事行动中日益突出的战术意义,结合对线性调频连续波(LFMCW)体制深入系统的研究而来。论文对LFMCW体制在近程战场警戒雷达上应用的可行性进行了全面的理论分析,对目标的测距测速、运动目标检测、多目标信号处理等问题进行了深入的研究,最后对实验样机的功能技术指标进行了设计,并对各功能模块的情况进行了分析。本文的目的在于根据LFMCW体制的特点,结合目标检测算法和解决多目标检测问题的频域配对算法,通过理论推导和仿真验证,从而使这种体制的近程战场警戒雷达适用于当前军事斗争前沿,能够满足战斗分队对前线警戒监视、单兵侦察、边海防卫、军队守护的需要,而且具有连续工作、操作简单、携行方便的特点,还要能够符合对装备小型化、轻型化、低成本、高性能等方面的要求,从而便于大量装备前线部队。相对而言,LFMCW体制雷达抗截获性能好、距离分辨力高、抗干扰能力强、发射峰值功率低、无距离盲区,而且小巧轻便结构简单,近程性能优异,正好可以应用于近程警戒。论文通过分析研究和仿真实验,证明了其可行性和正确性。本文的主要研究工作如下:1、对近程战场警戒雷达的背景及意义进行了阐述,对这种装备的研究发展概况和技术体制特点进行了分析讨论,对其发展趋势也做了介绍。2、分析了近程战场警戒雷达的应用场景和目标检测原理,对其工作原理进行了深入细致的研究,最后通过对目标检测算法的仿真,对本文信号处理方法的正确性和可行性进行了验证,给后面的分析提供了充分的参考数据。3、研究了LFMCW雷达的信号处理过程,对多目标检测的频域配对处理方法进行了详细的分析研究,通过仿真验证了其在多目标检测方面的有效性。4、给出了样机实验系统的功能和指标参数,选择了合适的信号处理的实现方案,并对算法进行了说明和分析。最后论文系统地总结了全文的工作,并且明确了今后需要进一步研究分析的问题。
[Abstract]:This paper focuses on the irreplaceable melee role of short-range battlefield alert radar and its increasingly prominent tactical significance in current military operations, combining with the in-depth and systematic study of the linear frequency modulation continuous wave (LFMCW) system. In this paper, the feasibility of the application of LFMCW in short-range battlefield warning radar is analyzed, and the problems of ranging and velocity measurement, moving target detection and multi-target signal processing are studied deeply. Finally, the functional and technical indexes of the experimental prototype are designed, and the situation of each functional module is analyzed. The purpose of this paper is to combine the target detection algorithm and the frequency domain pairing algorithm to solve the problem of multi-target detection according to the characteristics of LFMCW system. As a result, the short-range battlefield alert radar of this system can be applied to the front line of the current military struggle, and can meet the needs of the combat units for front-line surveillance, single-soldier reconnaissance, border and coastal defense, and military guarding. Moreover, it has a continuous operation and is simple to operate. It can meet the requirements of miniaturization, lightness, low cost, high performance and so on, so it is convenient to equip a large number of front-line troops. In contrast, LFMCW radar has good anti-interception performance, high range resolution, strong anti-jamming ability, low peak power, no range blind area, small and light structure and excellent short-range performance, so it can be used in short-range warning. The feasibility and correctness of the method are proved by the analysis and simulation experiments. The main research work of this paper is as follows: 1. The background and significance of short-range battlefield alert radar are expounded, and the research and development situation and technical system characteristics of this kind of equipment are analyzed and discussed. The development trend of the radar is also introduced. The application scene and target detection principle of short-range battlefield alert radar are analyzed, and its working principle is studied in detail. Finally, the simulation of target detection algorithm is carried out. The correctness and feasibility of the signal processing method in this paper are verified, and the full reference data. 3 is provided for the following analysis. The signal processing process of LFMCW radar is studied. The frequency domain pairing processing method of multi-target detection is analyzed and studied in detail. The effectiveness of the method in multi-target detection is verified by simulation. The function and index parameters of the prototype experimental system are given. A suitable signal processing scheme is selected, and the algorithm is explained and analyzed. Finally, the thesis systematically summarizes the work of the paper, and makes clear the problems that need further research and analysis in the future.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN957.51

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