Interferometic Synthetic Aperture Processing in a Tank Experiment
Interferometic synthetic aperture processing, which can provide the heights information of underwater targets compared to conventional synthetic aperture processing, will be focused in this paper. The experiment in a sound-absorbed tank was done last year in order to show the feasibility of its principle. Ten table tennis balls suspended about 2.5m away from the track in the mid-water (1.7m) of tank are illuminated with a broad beam of 100kHz, 60 <μ>s pulse signal, at different positions on the track. Full-length aperture has been employed to form a SAS image with a high cross-range resolution (2.7cm) that is quite approaching to the theoretical result (2.5cm). The heights of these balls are estimated through interferometric processing, and are in accordance with the deploying depths. Because four aperture data are available in the experiment, the results of different combination of any two of them show the consistency of height estimation.
Sun Dajun Tian Tan Zhang Dianlun Jiang Nan
Harbin Engineering University, Harbin 150001 P. R. C
国际会议
北京
英文
331-335
2007-10-01（万方平台首次上网日期，不代表论文的发表时间）