CAJ | 학술논문

针对射频隐身平台采取辐射时序控制的情况，以基于角度/相位差变化率/多普勒频率变化率的单站无源跟踪为例，研究了辐射时序与跟踪性能的影响关系。在辐射源做匀速运动的假设下，采用克拉美劳下界方法，建立了辐射时序对跟踪性能的影响模型。模型综合考虑了辐射时序、观测量误差、导航误差等因素，与具体的跟踪算法无关，因此具有实用性和客观性。基于影响模型的仿真分析，揭示了辐射时序不同特征对跟踪性能的影响规律，为射频隐身平台辐射时序设计提供了初步的理论指导。
침대사빈은신평태채취복사시서공제적정황，이기우각도/상위차변화솔/다보륵빈솔변화솔적단참무원근종위례，연구료복사시서여근종성능적영향관계。재복사원주균속운동적가설하，채용극랍미로하계방법，건립료복사시서대근종성능적영향모형。모형종합고필료복사시서、관측량오차、도항오차등인소，여구체적근종산법무관，인차구유실용성화객관성。기우영향모형적방진분석，게시료복사시서불동특정대근종성능적영향규률，위사빈은신평태복사시서설계제공료초보적이론지도。
The influence relation between radiation time sequences and the tracking performance is investi-gated where the single-platform passive tracking system based on the observed quantities including angles of arrival, phase difference change rates, and Doppler frequency change rates, is taken as an example. It is well suited for the case that radio frequency stealth platforms perform the radiation timing control. The influence model is presented by utilizing the method of Cramer-Rao Lower Bound ( CRLB ) under the as-sumption that the radiation target moves uniformly along one direction. This model has attractive features because it takes several factors fully into account, such as radiation time sequences, measurement errors and navigation errors, and it is also irrelevant to specific tracking algorithm. Finally,simulation results il-lustrate the influences of different radiation time sequence characteristics on the tracking performance, and provide a promising guidance for the radiation timing design on radio frequency stealth platforms.