In bathymetric survey, the record seabed image is distorted due to the angularbeamwidth 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。
2
The direction of acoustic beam and angularwidth of main lobe can be changed by properly amplitude-weighting, decreasing the frequency of impulsive signal and adjusting the interval of array elements.