Low SNR small moving target detection is a key technique in a target detection, recognition and tracking system.

在目标检测、识别与跟踪系统中，弱小目标的检测是需要解决的关键技术之一。

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Detection of echo energy could reveal the presence of a target and its location, size, shape, density and intensity.

检测回波能量就可获知目标物的存在、位置、大小、形状、浓度及强度。

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The project achieved its target of a 70 percent case detection rate of new smear-positive cases; the rate exceeded 70 percent in 2005 and has remained at around 77 percent since.

该项目实现了发现70%新病人的目标，这个比率在2005年被超过，并此后一直保持在大约77%的水平上。

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By incorporating a commercial radar (the Cerberus Scout surveillance system), target detection reached 100 percent.

ENGADGET: DARPA threat detection technology uses a camera to see targets, software and soldier brains to identify them

Like its cousins radar and sonar, lidar (light detection and ranging), works by broadcasting electromagnetic waves towards a target and then building up a picture from the reflection.

ECONOMIST: Forest conservation