Patent ID: 6651028
Filing Date: 2003-11-18
Classification: G01S

Abstract:
A method for determining a range and a velocity of an object compared to a station while communicating data therebetween, comprising the steps of:providing a reflector on said object; modulating digital data at said station onto a first waveform using one of phase modulation and frequency modulation to produce a first output; amplitude modulating said first output with a second waveform to produce a second output comprising a carrier-no-carrier signal; transmitting said second output from said station to said object; generating a return signal by reflecting a first portion of said second output from said reflector; receiving said return signal at said station and processing said return signal to obtain said range and said velocity of said object; and processing a second portion of said second output at said object to recover said digital data modulated onto said first waveform at said station.