HIGH DOPPLER RATE, HIGH ALTITUDE CAPABILITY COHERENT PULSE DOPPLER RADAR ALTIMETER

摘要

a pulsed doppler radio, designed to solve the problem of distance ambiguity associated with the use of a pulse repetition interval which is less than the height of the plane, includes a radar transmitter designed to emit a first and a second series pulsethe first series with a slightly different pulse repetition interval of the recurrence interval of the second series. when the first number is issued, the receiver comprising a door of electronic range and a follower's return of land and set the door of distance to coincide in time with the return of land identified.the control is shifted to the second series of pulses is transmitted and it is determined whether the overlap of the door distance from the back of the second floor of the series is at the same level as that obtained in the first series.if the answer is negative, we know that the distance detected is ambiguous and the follower continues to reposition the door distance (height) until a clear distance is determined.