Title :
Sampling phase rotator for removal of Doppler shift in a lunar radar
Author :
Ponsonby, J.E.B. ; Morison, I.
Author_Institution :
University of Manchester, Nuffield Radio Astronomy Laboratories, Macclesfield, UK
Abstract :
The Doppler shift of the return in a lunar radar is removed by unwinding its phase according to a precomputed phase function. The unwinding is performed by a computer-controlled analogue `resonator¿ that operates discontinuously on discrete samples of the receiver signals.
Keywords :
Doppler effect; astronomical instruments; communications applications of computers; radar applications; radar receivers; signal processing; Doppler effect; Doppler shift; astronomical instruments; computer controlled analogue resonator; lunar radar; radar receivers; sampling phase rotator; signal processing; unwinding;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19730301
