摘要
本文将用于合成孔径声纳成像的相关合成算法推广到合成孔径技术的伪目标抑制当中,放宽了不出现伪目标的采样条件,从而提高了声纳运动速度,改善了图像的质量,提高了声纳的成像率。如果声纳采样间距已定,则相应的声阵物理长度可以缩短,从而使得方位分辨率有所提高。计算机仿真结果验证了所提思路的有效性。
It is shown in this paper that the sampling rate is relaxed in the coherent addition algorithm for synthetic aperture sonar without alias targets. Thus the sonar can move faster, the image quality is improved, and the mapping rate is increased. If the sampling interval is fixed, the length of the physical aperture can be reduced, and the azimuth resolution is improved.
出处
《声学技术》
CSCD
2003年第1期33-36,43,共5页
Technical Acoustics
关键词
声呐
合成孔径
伪目标
相关合成算法
采样率
sonar
synthetic aperture
alias targets
coherent addition algorithm
sampling rate