Evaluation of Imaging Performance for Sub-Y-type Interferometric Synthetic Aperture Radiometer
The two-dimensional interferometric synthetic aperture radiometer measures the brightness temperature distribution using two-dimensional antenna array without scanning. It has been reported that Y-type array configuration with equally spaced antennas is optimal in terms of a narrow 3dB beamwidth and wide synthesized field-of-view (FOV). The sub-Y-type array was suggested to improve the spatial resolution than that of conventional Y-type array with the same number of antenna elements. To evaluate it,37 GHz two-channel interferometric radiometer demonstration model is implemented. The angular resolution of sub-Y-type array was compared with that of Y-type array with the same number of antennas. In this paper, the performance of sub-Y-type is evaluated under the some two-dimensional targets such as the contiguous square objects. The images of sub-Y-type and Y-type array were simulated. The imaging features were compared. The sub-Y-type has higher spatial resolution than Y-type in case of the contiguous target as well as a single point source.
Ho-Jin Lee Hyuk Park Sung-Hyun Kim Yong-Hoon Kim
Gwangju Institute of Science and Technology (GIST),Korea
国际会议
Progress in Electromagnetics Research Symposium 2005(2005年电磁学研究新进展学术研讨会)(PIERS 2005)
杭州
英文
543-546
2005-08-22（万方平台首次上网日期，不代表论文的发表时间）