Title :
Radar beamwidth reduction techniques
Author_Institution :
Dept. of Electr. & Electron. Eng., Nippon Inst. of Technol., Tokyo, Japan
fDate :
5/1/1998 12:00:00 AM
Abstract :
It is essential and desirable to get a high resolution echo in a radar image without using a large antenna. On scanning a radar antenna, the target´s distribution is smoothed by the antenna beam and a smeared echo appears on the radar display. This paper describes three different types of beam compression radars: subsurface SAR; correlation array radar; and inversion processed radar. The experimental results show that the beamwidth on display was effectively compressed by the signal processing
Keywords :
correlation methods; radar imaging; radioastronomical techniques; remote sensing by radar; synthetic aperture radar; antenna; high resolution echo; radar beamwidth reduction; radar display; radar image; scanning; smeared echo; target´s distribution; Antenna arrays; Frequency conversion; Ground penetrating radar; Image coding; Image resolution; Radar antennas; Radar imaging; Radar remote sensing; Signal resolution; Synthetic aperture radar;
Journal_Title :
Aerospace and Electronic Systems Magazine, IEEE
