The light center of gravity method is applied to processing optic fiber exited spot signal.
采用“光重心法”对光斑信号进行处理。
Using center of gravity method, the system make the precise orientation of laser spot come true.
系统采用质心法，实现了激光光斑中心精确定位。
In the usage of center of gravity method, it inevitably will be affected by the background light.
而重心法在使用中不可避免要受到背景噪声的影响。
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