水下伪码调制激光引信信号处理技术研究  

Signal processing technique of underwater pseudorandom code modulated laser fuze

作　　者：孙志慧[1] 邓甲昊[1] 潘曙光[1] 闫小伟[1] 

机构地区：[1]北京理工大学宇航科学技术学院,北京100081

出　　处：《红外与激光工程》2007年第z2期146-149,共4页Infrared and Laser Engineering

基　　金：国家部委预研项目(40201070304)

摘　　要：分析了水下六象限伪码调制激光引信的工作原理,以潜艇为目标,建立了识别潜艇及其方位的识别准则,分析基于距离门和伪随机码的抗干扰机理,给出了伪码相关判别和距离计算的方法,并用FPGA和DSP实现了在复杂背景环境下判断有无目标以及当有目标时判断目标的距离与方位,给出了相应信号处理的软件流程。实验结果表明,算法可行且实时性较好。The operation principle of underwater pseudorandom code modulated laser fuze with six-quadrant detector was analyzed.Taking a submarine as the target,the identification criteria of the submarine and its azimuth were set up.The principles of anti-interference based on range gate and pseudorandom code were analyzed.The methods of pseudorandom code correlation and range calculation were given.Under the complicated circumstance,target identification and target’s range and azimuth estimation were realized with FPGA and DSP.The flow chart of signal processing program was given.The feasibility of the method is proved by experimental test

关 键 词：信号处理 水下激光引信 反潜 抗干扰 FPGA和DSP应用 

分 类 号：TJ439.2[兵器科学与技术—火炮、自动武器与弹药工程]