Title :
Jammer cancellation with adaptive arrays for GPS signals
Author :
Gecan, Anton ; Flikkema, Paul ; Snider, Arthur David
Author_Institution :
E-Systems Inc., St. Petersburg, FL, USA
Abstract :
We describe a scheme for adaptively generating array receiver-antenna weights so as to reduce jamming interference of the GPS signal to a level where the spread spectrum mechanism can extract the signal. The procedure is based on an analytic implementation of the LMS algorithm, with gradients evaluated simply by determination of the power in certain mathematical combinations of the array outputs. The scheme converges so rapidly that it is very robust to vehicular motion and the presence of noise
Keywords :
Global Positioning System; adaptive antenna arrays; array signal processing; interference suppression; jamming; least mean squares methods; radiofrequency interference; receiving antennas; spread spectrum communication; GPS signals; LMS algorithm; adaptive arrays; analytic implementation; array outputs; array receiver-antenna weights; gradients; jammer cancellation; jamming interference; noise; spread spectrum; vehicular motion; Adaptive arrays; Global Positioning System; Integral equations; Interference; Jamming; Noise level; Phased arrays; Receiving antennas; Signal generators; Spread spectrum communication;
Conference_Titel :
Southeastcon '96. Bringing Together Education, Science and Technology., Proceedings of the IEEE
Conference_Location :
Tampa, FL
Print_ISBN :
0-7803-3088-9
DOI :
10.1109/SECON.1996.510083
