[2] Nishiguchi N, Kobaysshi M, Ichikawa A. Signal and Data Processing of Small Targets[A]. Proc SPIE[C]. 1995,256.153-163.
[3] Charlene E Caefer, Jerry Siliverman. Optimization of point target tracking filters[J]. IEEE Transactions on Aerospace and Electronic Systems, 2000, 36(1): 15-25.