无参考点Link16信号定位方法研究

Research on No Reference Position Localization Method of Link16 Signal

JTIDS系统的Link16信号工作在正交跳频状态,单个侦察站根据接收到的脉冲信号相互间的时间差,就可以描绘出网内用户的相对航迹。如果网内有一个点的位置已知,即参考点,其它所有点的位置都可以确定,这种有参考点的Link16信号单站定位方法,在不同作战环境中其可用性与能否找到参考点直接相关。研究提出一种测量相对时差和相对电平相联合的无参考点单站定位新方法,可以在不同的作战环境中实现对Link16信号的单站定位,以满足实战需求。

When Link16 signal in Joint Tactical Information Distribution System （JTIDS） is performing in an orthogonal frequency hopping state, the relative track of target in the hopping network can be depict by single reconnaissance station received difference pulse signals of Link16 according to the time equation of pulse signals. If there is a known location （ reference position） within the hopping network, other locations of targets can be tracked, the availability of this kind of single-station location method is directly related to a reference position in different operational environments. A new single-station location method that is related to the time equation and the relative levels of signal strength is presented. This kind of new method can achieve single-station location of Link16 signals in different environment, meeting the actual battlefield demand in all circumstances.