METHOD AND APPARATUS FOR IMPROVING NOISE DISCRIMINATION USING ENHANCED PHASE DIFFERENCE VALUE
摘要
Noise discrimination in signals from a plurality of sensors is conducted by enhancing the phase difference in the signals such that off-axis pick-up is suppressed while on-axis pick-up is enhanced. Alternatively, attenuation/expansion are applied to the signals in a phase difference dependent manner, consistent with suppression of off-axis pick-up and on-axis enhancement. Nulls between sensitivity lobes are widened, effectively narrowing the sensitivity lobes and improving directionality and noise discrimination.
申请公布号
WO2007025265(A3)
申请公布日期
2007.10.25
申请号
WO2006US33600
申请日期
2006.08.25
申请人
STEP COMMUNICATIONS CORPORATION;TAENZER, JON, C.;SPICER, BRUCE, G.