Abstract: This paper present results from a series of preliminary tests to evaluate a scannerless range-imaging device as a potential sensor enhancement tool for divers and as a potential identification sensor for deployment on small unmanned underwater vehicles. The device, developed by Sandia National Laboratories, forms an image on the basis of point-to-point range to the target rather than an intensity image. The range image is constructed through a classical continuous wave phase detection technique which synchronously couples a modulated light source to a gain- modulated image intensifier in the receiver. Range information is calculated on the basis of the phase difference between the transmitted and reflected signal. The initial feasibility test at the Coastal Systems Station showed the device to be effective at imagin glow-contrast underwater targets such as concertina wire. It also demonstrated success at imagin a 21-inch sphere at a depth of 10 feet in the water column through a wavy air-water interface. !3
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机译：摘要：本文介绍了一系列初步测试的结果，这些测试旨在评估无扫描仪的范围成像设备，它是潜水员的潜在传感器增强工具，也是部署在小型无人水下航行器上的潜在识别传感器。由桑迪亚国家实验室（Sandia National Laboratories）开发的设备根据到目标的点到点范围而不是强度图像来形成图像。测距图像是通过经典的连续波相位检测技术构建的，该技术将调制光源同步耦合到接收器中的增益调制图像增强器。根据发射信号和反射信号之间的相位差来计算距离信息。在沿海系统站进行的初步可行性测试表明，该设备可以有效地对水下照耀的目标（如六角琴线）进行成像。它还通过波浪状的空气-水界面在水柱中10英尺深处想象一个21英寸的球体而获得了成功。 ！3
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