两面阵双波段雷达的跟踪滤波性能分析

双波段雷达较常规雷达具有更高检测概率,更高角跟踪精度和更强的抗干扰性能。针对提出的背靠背式两面阵双波段雷达,研究了双波段雷达数据处理中测量噪声和数据率对Kalman滤波性能的影响。理论分析和仿真试验都表明,采用两面阵双波段体制使数据率提高1倍情况下,两个通道的测量噪声方差变化系数应小于2,才能保证在有限跟踪时间内使跟踪精度满足要求,在这个范围内测量噪声方差增加一定倍数时,经过一定次数的跟踪,滤波性能都可以达到要求。

Analysis of Tracking Filter Performance of Two-Face Array Dual-Band Radar

Dual band radar has higher detection probability,higher angle tracking accuracy and better anti-jamming performance.Based on the back-to-back two-face array dual-band radar presented in this paper,the effects of metrical noise and data rate on Kalman filtering performance are analyzed.Theoretical analysis and simulation results show that when data rate increases by one time,the metrical noise variable coefficient should be less than two in order to make the tracking accuracy meet demands in the finite tracking time,and when metrical noise variance ranges within this confine,the filtering performance can meet demands after several tracking steps.