基于无线电测向技术的弹载记录仪信标

Missile Borne Recorder Beacon Based on Radio Direction Finding

针对弹载记录仪试验后搜寻困难、传统GPS/北斗卫星定位受限等问题,设计了基于无线电测向技术的新型抗冲击弹载记录仪信标。该信标发射机主要由频率合成器、混合信号微控制器和微带发射天线构成,集成于弹载记录仪内部,随记录仪着地后,通过手持搜索仪接收到的无线电信号,判断信标方位,从而快速回收记录仪。仿真和现场模拟试验验证了信标发射机的抗冲击性和高效的测向性能,为以后记录仪搜寻提供了新的方法。

Searching missile borne recorder after test is difficult, and the traditional GPS / Beidou satellite posi- tioning was limited. Aiming at the problem, a missile borne recorder beacon based on radio direction finding techniques was proposed. The beacon transmitter which mainly consists of frequency synthesizer, mixed-signal micro controller and microstrip transmission antennas, which was integrated in the internal missile borne record- er. After landing with the recorder, through the radio signal which received by hand-held search instrument to judge the beacon＇s position, then recovered the missile borne recorder quickly. Simulation and scene imitation experiments verified the impact resistance of the transmitter and effective direction finding and positioning per- formance of the missile borne recorder beacon.