星载激光告警接收技术研究

发布时间：2018-10-17 18:03

【摘要】：本文以星载激光告警应用为背景,以激光武器系统的信标激光或照明激光为探测接收对象,研究星载激光告警接收技术,实现对反卫星激光武器系统的早期预警。目的是提升卫星系统激光威胁感知能力,提高我国卫星对激光武器威胁的规避及生存能力。为卫星激光告警系统的接收技术设计提供参考,并据此合理优化后续卫星激光告警系统的综合性能。本文首先分析了星载激光告警接收技术的主要影响因素,包括光电探测器、运算放大器及放大电路形式。分析得出了运算放大器噪声是接收电路的主要噪声源,对比了不同偏置电路和不同运算放大电路组合后的接收电路的优缺点,为星载激光告警设备接收电路设计提供参考。其次通过理论分析结合试验修正建立了光电探测器(GT101-Φ2)的电路仿真模型。理论分析了脉冲、连续激光信号共信道检测的可行性。最后通过试验验证了理论分析的正确性。
[Abstract]:In this paper, the space-borne laser warning system is used as the background, and the beacon laser or illuminated laser of the laser weapon system is taken as the detection and receiving object. The space-borne laser warning receiving technology is studied to realize the early warning of the anti-satellite laser weapon system. The aim of this paper is to improve the ability of laser threat perception of satellite system and the ability of avoiding and surviving the threat of laser weapon. It provides a reference for the design of satellite laser warning system and optimizes the comprehensive performance of the satellite laser alarm system. In this paper, the main influencing factors of spaceborne laser alarm receiving technology are analyzed, including photodetectors, operational amplifiers and amplifiers. It is concluded that the noise of operational amplifier is the main noise source of receiving circuit. The advantages and disadvantages of different bias circuit and different combination of operational amplifier circuit are compared in order to provide a reference for the design of receiving circuit of spaceborne laser alarm equipment. Secondly, the circuit simulation model of photodetector (GT101- 桅 2) is established by theoretical analysis and experimental correction. The feasibility of co-channel detection of pulse and continuous laser signals is analyzed theoretically. Finally, the correctness of the theoretical analysis is verified by experiments.
【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】：2015
【分类号】：V443

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