Comparing with the testing results of interferometer, the digital knife-edge testing technology is available and can provide theoretical basis for surface modification.

通过与干涉仪测量结果相比较，验证了数字刀口检测方法的可行性，为镜面误差的加工修正提供了依据。

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Three methods of detecting submerged object based on Brillouin scattering, high resolution scanning F-P interferometer, edge detection technique and solid F-P etalon-ICCD camera, are introduced.

介绍三种基于布里渊散射的水下目标探测方法：F-P扫描干涉仪探测方法、边缘探测方法、F-P标准具-ICCD探测方法，并对这三种方法进行了分析和比较。

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