In bathymetric survey, the record seabed image is distorted due to the angular beam width of an echo sounder.
在海洋测深过程中，回声测深仪波束角效应使记录的测深图像失真。
The direction of acoustic beam and angular width of main lobe can be changed by properly amplitude-weighting, decreasing the frequency of impulsive signal and adjusting the interval of array elements.
通过适当的幅度加权、降低激励信号的频率、调整阵元的间距等措施可以改变辐射声束的方向和辐射主瓣的角宽。
Angular resolution of a real aperture radar is limited by the beam width of the radar antenna.
一般非综合孔径雷达的方位分辨率受天线波束宽度的限制。
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