Title :
A novel direct-imaging radar sensor with frequency scanned antenna
Author :
Mayer, W. ; Wetzel, M. ; Menzel, W.
Author_Institution :
Dept. of Microwave Techniques, Ulm Univ., Germany
Abstract :
The principle, design and experimental results of a simple direct imaging radar sensor are presented. The FM-CW radar principle and a frequency scanned antenna are combined with waveforms of different frequency slopes in such a way that angular and range information are provided by the amplitude envelope of a fixed video frequency. The sensor architecture uses a minimum of active RF components and digital signal processing. With low cost frequency scanned antennas, this architecture can be applied in radar surveillance stations or automotive side looking sensors.
Keywords :
CW radar; FM radar; angular measurement; distance measurement; radar antennas; radar imaging; radar resolution; radar theory; road vehicle radar; scanning antennas; search radar; FM-CW radar; active RF component minimization; angular/range resolution/information; automotive side looking sensors; differing frequency slope waveform combining; digital signal processing; direct-imaging radar sensors; fixed video frequency amplitude envelope; low cost frequency scanned antennas; radar surveillance stations; Automotive engineering; Band pass filters; Costs; Frequency; Low pass filters; Phased arrays; Radar antennas; Radar imaging; Radar signal processing; Signal resolution;
Conference_Titel :
Microwave Symposium Digest, 2003 IEEE MTT-S International
Conference_Location :
Philadelphia, PA, USA
Print_ISBN :
0-7803-7695-1
DOI :
10.1109/MWSYM.2003.1210538
