指出了影响水下光图象质量的因素主要是反向散射和小角度正向散射。

The main factors affecting the quality of underwater light image are backscatter and small-angle forward scatter.

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激光散射法粒度测试仪在固定波长下，通过探测粒子场在前向某个小角度范围内的相对散射光能而得到粒子的尺寸分布信息。

The Laser particle Sizer may obtain the information of particle size and distribution by detecting the relative energy scattered by the particles, with the fixed wavelength.

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曾提出利用小角度前向散射原理成像的方法，利用该方法进行了若干次模拟计算，并对结果进行了分析。

We have proposed a method of imaging based on the principle of small-angle forward scattering. We performed several simulations with Monte-Carlo method, and drew a conclusion according to the results.

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