干扰条件下双基地T 站可观测信息具有不稳定性,传统基于有源定位跟踪系统的航迹起始算法将不再适用于T/ R-R型双基地系统。为提高恶劣环境下的跟踪性能,文中提出了一种干扰条件下双基地系统航迹起始算法。该方法在传统逻辑方法基础上,利用R站观测信息起始目标航迹。针对双基地系统定位精度随目标空间位置变化较大的特点,设计了能够自适应调整的初始波门,保证了系统能以较高概率起始目标航迹;同时改进了点迹与可能航迹的互联规则,大大降低了系统的虚警概率。仿真结果验证了文中方法的有效性。

Since observation of bistatic transmitter is fallible and discontinuous under the condition of electronic jamming, track initiation algorithm based on traditional active location and track system is not fit for T/R-R bistatic system. In order to improve track capability in EW environment, a track initiation algorithm of bistatic system is put forward. The algorithm based on traditional logic makes full use of observation of bistatic receiver for track initiation. In order to resolve the problem that location accuracy varies much with different space location, the automatic initial gate is designed, which can initiate track with high detection probability; The rule of data association is improved, which reduces the false probability. The simulation results prove the presented approachs effectiveness.