S模式二次雷达询问策略的研究和改进

Research and Improvement on Interrogational Strategy of Mode S Secondary Surveillance Radar

通常常规二次雷达(SSR)工作在A/C模式,S模式二次雷达工作在交互模式,通过不同的询问策略获得应答信号。在实际应用中发现,特殊应答机对于交互模式的应答存在丢点问题。本文通过对现有S模式二次雷达询问策略的分析和研究,在国际民航组织二次雷达规范的基础上提出了改进的询问策略,解决了S模式二次雷达与传统A/C模式二次雷达兼容过程中偶尔出现的目标丢失问题,为S模式二次雷达的运用提供了建设性意见。

Usually,the traditional Secondary Surveillance Radar(SSR)works in mode A/C,and mode S SSR works in intermode to obtain response signals through different interrogation strategies.In practical application,it is found that there are special responders,and there is a missing problem for the intermode.An improvement interrogation strategy is proposed on based on SSR standard of ICAO in this paper,by analyzing interrogation strategies of mode S SSR.This strategy resolves a track occasionally to lose when mode S is compatible with traditional Mode A/C,and provides constructive suggestions for the application of mode S SSR.