Patent ID: 7525482

Claim:
An adaptive antenna system with array factor mitigation, for use with a GPS system and associated satellite angle data, said adaptive antenna system comprising: input ports coupled to an array antenna; an adaptive processor, responsive to antenna signals from said input ports and to a composite GPS signal from a first signal port, and arranged to provide pattern data representative of weighting information used to produce a current adapted antenna pattern responsive to existing interference conditions; a combiner configuration coupled to said input ports, responsive to said weighting information and arranged to combine said antenna signals to form, at said first signal port, a composite GPS signal; a data facility arranged to provide access to array factor data representative of array factor distortions applicable to signal reception at particular arrival angles via particular adapted antenna patterns implementable by said adaptive antenna system; and an array aiding processor responsive to said satellite angle data and arranged to provide an angle value of an arrival angle of a GPS satellite signal; said array aiding processor coupled to said adaptive processor and said data facility and arranged to utilize said pattern data and said angle value to access the data facility to obtain array factor data applicable to reception at said arrival angle via said current adapted antenna pattern and to provide at a second signal port an array factor correction signal relating to reception of a GPS signal at said arrival angle.