Title :
Semicoherent Doppler processing technique
Author :
Castella, F.R. ; Thurber, R.E.
Author_Institution :
Johns Hopkins University, Physics Laboratory, Laurel, USA
fDate :
2/1/1986 12:00:00 AM
Abstract :
A coherent radar digital data collector (CRDDC) has been developed which records I, Q data obtained by sampling the receiver intermediate frequency (IF) of a fan-beam radar with a single A/D convertor. The paper describes the sampling technique which was developed for this application, called the semicoherent Doppler processing technique, which allows operation with radars employing a noncoherent transmitter such as a magnetron. Representative field results are presented for real targets and natural environments such as land and sea clutter. These results employing spectral analysis, which prove the viability of the sampling technique for Doppler processing, were obtained by processing data recorded by the CRDDC at a coastal site in California with an L-band fan-beam radar.
Keywords :
Doppler effect; data acquisition; radar equipment; signal processing; ADC; California; I data; IF; L-band fan-beam radar; Q data; coherent radar digital data collector; intermediate frequency; land clutter; magnetron; noncoherent transmitter; radar receiver; sampling; sea clutter; semicoherent Doppler processing; signal processing; spectral analysis;
Journal_Title :
Communications, Radar and Signal Processing, IEE Proceedings F
DOI :
10.1049/ip-f-1.1986.0015