Patent ID: 7010556

Claim:
A method of improving the power ratio of useful signal to interference signals of an antenna having at least one sensor said method comprising filtering the signal from said antenna using a filter having a transfer function {W(t), W(t, f)} equal to the ratio of linear functions (F) and (G) of the power {{circumflex over (p)} y (t), {circumflex over (p)} y (t,f)} at the output of the antenna to the power {{circumflex over (p)} x (t), {circumflex over (p)} x (t,f)} at the input of the antenna, namely W ⁡ ( t ) = F ⁢ { p ^ x ⁡ ( t ) , p ^ y ⁡ ( t ) } G ⁢ { p ^ x ⁡ ( t ) , p ^ y ⁡ ( t ) } ⁢ ⁢ or W ⁡ ( t , f ) = F ⁢ { p ^ x ⁡ ( t , f ) , p ^ y ⁡ ( t , f ) } G ⁢ { p ^ x ⁡ ( t , f ) , p ^ y ⁡ ( t , f ) } .