LATERAL DISPLACEMENT DETECTOR FOR GUIDANCE CONTROL OF UNMANNED CARRIER

摘要

PURPOSE:To obtain a detecting signal for detection of the lateral displacement with high accuracy by extracting only the induced signal having frequency corresponding to that of the signal along a locus line through the band-pass filters and omitting the control job which obtains a resonance point. CONSTITUTION:Amplifiers 18 and 19 amplify the signal induced by pickup coils 12 and 13 set in a pair at right and left sides on the bottom surface of an unmanned carrier. Band-pass filters 20 and 21 transmit only the induced signals amplified by amplifiers 18 and 19 having frequency bands coincident with that of the signal flowing along a locus line. Then rectifying circuits 22 and 23 rectify the induced signals which are delivered from filters 20 and 21. a subtractor 24 obtains the difference between both rectified signals. This difference is detected as a lateral displacement amount of the unmanned carrier against the locus line.