Power minimization with derivative constraints for high dynamic GPS interference suppression

In this paper, a novel adaptive interference suppression algorithm is proposed for high dynamic GPS (global positioning system) receiver. The new method incorporates derivative constraints on the interference DOA (direction of arrival) into power minimization approach, which could broaden the width of nulls in the interferences directions and adapt to the rapid change of the interference directions. Compared with the traditional wide nulling algorithm based on the derivative constraints, the new method does not have to know or estimate the DOAs of the desired signal and the interference. The new method is firstly discussed in the context of spatial processing, and then extended to space-time adaptive processing to mitigate wideband diffusive multipath interference. Effectiveness of the new method is verified via simulation examples.

[1]  Michael D. Zoltowski,et al.  Advanced adaptive null steering concepts for GPS , 1995, Proceedings of MILCOM '95.

[2]  Johan Malmström.  Robust Navigation with GPS/INS and Adaptive Beamforming , 2003 .

[3]  Renbiao Wu,et al.  A Novel Blind GPS Anti-jamming Algorithm Based on Subspace Technique , 2006, 2006 8th international Conference on Signal Processing.

[4]  Johann F. Böhme,et al.  Adaptive beamforming algorithms with robustness against jammer motion , 1997, IEEE Trans. Signal Process..

[5]  Alex B. Gershman,et al.  Constrained Hung-Turner adaptive beam-forming algorithm with additional robustness to wideband and moving jammers , 1996 .

[6]  John J. Vaccaro,et al.  Wideband cancellation of interference in a GPS receive array , 2000, IEEE Trans. Aerosp. Electron. Syst..

[7]  James L. Garrison,et al.  Extended Kalman Filter-Based Tracking of Weak GPS Signals under High Dynamic Conditions , 2004 .

[8]  Renbiao Wu,et al.  Adaptive anti-jamming algorithm based on the characteristics of the GPS signal , 2007, 2007 International Symposium on Intelligent Signal Processing and Communication Systems.

[9]  K. Chen.  Real-Time Precise Point Positioning and Its Potential Applications , 2004 .

[10]  Jay R. Sklar.  Interference Mitigation Approaches for the Global Positioning System , 2003 .

[11]  W.J. Hurd,et al.  High Dynamic GPS Receiver Using Maximum Likelihood Estimationand Frequency Tracking , 1987, IEEE Transactions on Aerospace and Electronic Systems.

[12]  S. Hinedi,et al.  High-dynamic GPS tracking , 1988 .

[13]  G.F. Hatke.  Adaptive array processing for wideband nulling in GPS systems , 1998, Conference Record of Thirty-Second Asilomar Conference on Signals, Systems and Computers (Cat. No.98CH36284).

[14]  M.G. Amin,et al.  A self-coherence anti-jamming GPS receiver , 2005, IEEE Transactions on Signal Processing.

[15]  R. L. Fante,et al.  Cancellation of diffuse jammer multipath by an airborne adaptive radar , 1995 .