[1] Song T L, Speyer J L. A stochastic analysis of a modified gain extended kalman filter with applications to estimation with bearing only measurements [ J ]. IEEE Trans Autom Control, 1985, 30(10): 940-949
[2] Aidala V J, Hammel S E. Utilization of modified polar coordinates for bearings only tracking [ J ]. IEEE Trans Autom Control, 1983,28(3): 283-294
[3] Grossman W. Bearing only tracking: A hybrid coordinate system approach [J]. J Guid Control Dyn. 17(3), 1994:451-457
[4] Lindgren A G, Gong K F. Position and velocity estimation via bearing observations [ J ]. IEEE Trans Aerosp Electron Syst. , 1978,14(5): 564-577
[5] Aidala V J. Kalman filter behaviour in bearings only tracking applications. IEEE Trans Aerosp Electron Syst. , 1979,15(1): 29-39
[6] Aidala V J, Nardone S C. Biased estimation properties of the pseudo linear tracking filter [ J ]. IEEE Trans Aerosp Electron Syst. , 1982,18(4) : 432-441
[7] S. Koteswara Rao. Pseudo-linear estimator for bearings-only passive target tracking [ J ]. IEE Proc Radar Sonar Navig. ,2001,48(1 ): 16-22