Title :
Sweep linearization of a microwave FMCW Doppler sensor by an ultrasonic reference
Author :
Ruser, H. ; Mágori, V.
Author_Institution :
Corp. Technol., Siemens AG, Munich, Germany
Abstract :
For a microwave FMCW Doppler sensor, a new linearization method is proposed using an ultrasonic FM reference signal. The received microwave signal is sampled with a sampling interval adapted to the phase intervals of the ultrasonic reference signal. With this linearized combined microwave/ultrasonic FMCW Doppler sensor, additionally to a high target detection reliability, a significantly improved resolution for range and velocity measurements and good multi-target selectivity are achieved
Keywords :
Doppler measurement; computerised instrumentation; linearisation techniques; microwave measurement; sensors; signal sampling; ultrasonic measurement; velocity measurement; frequency modulated continuous wave sensor; high target detection reliability; linearized combined microwave/ultrasonic Doppler sensor; microwave Doppler sensor; multi-target selectivity; range measurements; received microwave signal; resolution; sampling interval; sweep linearization; ultrasonic FM reference signal; ultrasonic reference; ultrasonic reference signal; velocity measurements; Continuous phase modulation; Delay effects; Frequency modulation; Linearity; Microwave sensors; Microwave theory and techniques; Object detection; Sampling methods; Signal resolution; Velocity measurement;
Conference_Titel :
Frequency Control Symposium, 1997., Proceedings of the 1997 IEEE International
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-3728-X
DOI :
10.1109/FREQ.1997.638544
