What is the function leading edge range tracker servo loop?(a) Provide range to the nearest return(b) Speed measurements(c) Vertical speed measurement(d) Automatic ground navigationI got this question during an interview for a job.This question is from Radar Altimeter topic in section Celestial Navigation, Doppler and Altimeter Radars of Avionics

What is the function leading edge range tracker servo loop?(a) Provide

1.	What is the function leading edge range tracker servo loop?(a) Provide range to the nearest return(b) Speed measurements(c) Vertical speed measurement(d) Automatic ground navigationI got this question during an interview for a job.This question is from Radar Altimeter topic in section Celestial Navigation, Doppler and Altimeter Radars of Avionics
Answer» Correct ANSWER is (a) Provide RANGE to the nearest return Easiest explanation: To provide a range to the nearest return within the BOUNDS of the antenna beam, many modern radar altimeters incorporate the gate in a pulse modulated radar or a FILTER in a frequency modulated radar over the leading EDGE of the return.

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