passive estimation of target depth
acoustic-passive direction estimation
Passive azimuth estimation sonar
passive bearing estimation
passive direction estimation
passive range estimation
Passive-range estimation
passive element passive element
bei (被) passive sentences
(+)Passive hydrogen maser
3-D single observer passive location
a combination solution of the active and passive method to reduce noise
acoustic passive localization
acoustic passive location
acoustic passive location array with four sensors
acquired passive immunity
active and passive area