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在常用的水下光电成像系统中，连续光成像系统容易受到水体后向散射噪声的影响，探测距离有限，传统距离选通成像系统消除了水体后向散射噪声的影响，增加了探测距离，但每帧图像只能对某一距离的选通切片成像，探测范围有限。本文在水下高重频距离选通成像系统的基础上，从空间域来看，将整个探测区域划分为相互叠加的改进选通切片，一帧图像积分时间内的激光脉冲按照一定规律分布到各个改进选通切片中；从时间域来看，针对一帧图像积分时间内的大量激光脉冲，按照一定规律实现宽选通门对不同激光脉冲回波的等时差移动，使得一帧图像中包含所有距离的目标信息，实现全选通实时成像。通过对连续光成像系统、传统距离选通成像系统和全选通成像系统进行实验对比，本文所提出的成像控制方法既能够同时拥有连续光成像系统探测范围大和距离选通成像系统探测距离远的优点，探测距离大于 4.5 AL，输出视频帧率为 20 Hz。
In common underwater photoimaging systems, continuous-wave optical imaging system is easily affected by the backscattering noise of water bodies and the detection range is limited. The traditional distance-gated imaging system eliminates the influence of backscattering noise of water bodies and increases the detection distance, however, Each frame of image can only be a certain distance of the gated slice imaging, detection range is limited. Based on the underwater SAR system, the whole detection area is divided into improved gating slices superimposed on each other. The laser pulses in one frame of image integration time are distributed according to a certain rule In the time domain, for a large number of laser pulses in a frame of image integration time, a wide-gating gate is used to achieve isochronous movement of different laser pulse echoes according to a certain rule, so that a frame of image contains Target information for all distances to achieve full gated real-time imaging. By comparing the continuous-light imaging system, the traditional distance-gated imaging system and the omnidirectional omni-directional imaging system, the imaging control method proposed in this paper can both detect the large range of the continuous-vision imaging system and detect the distance from the gated imaging system Advantages, detection distance greater than 4.5 AL, the output video frame rate of 20 Hz.