Passive Estimation

passive estimation of target depth

passive sonar

passive sonar buoy

passive sonar detection

Passive sonar early warning

Passive sonar target recognition

passive sonar-buoy

Azimuth 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

a passive DMFC

acoustic passive localization

acoustic passive location

acoustic passive location array with four sensors

acoustic-passive direction estimation