Title :
An improvement of phase correction for spotlight mapping radar
Author :
Oh-hashi, Yoshimasa ; Fujisaka, Takahiko ; Kondo, Michimasa ; Kondo, Natsuki
Author_Institution :
Mitsubishi Electric Corporation, Kanagawa, Japan
Abstract :
The quadratic phase error being caused in a spotlight mapping radar, the image is blurred in proportion as the target leaves the reference point. In this paper, a novel algorithm is proposed that the image quality can be improved. This algorithm can reduce the quadratic phase error by means of two stage FFT processes. As a result, for example, it was found that the image of targets in the antenna beamwidth of 5 degrees could be focused in high resolution.
Keywords :
Aircraft; Computational modeling; Computer errors; Computer simulation; Degradation; Error correction; Frequency; Image quality; Radar antennas; Radar imaging;
Conference_Titel :
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '86.
DOI :
10.1109/ICASSP.1986.1168854
