The thermocline is important to the sonar detection.

温跃层对声纳探测有着重要的影响。

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A signal acquisition system for laser-based sonar detection system is constructed based on ARM embedded processor and real-time operating system.

文中还给出了采用ARM嵌入式处理器结合嵌入式实时操作系统构建的激光探测信号采集系统。

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Compared with the traditional technology of sonar detection, it is characteristic of hoghly tactical flexibility, rapid sur- vey rate and particularly useful for coastal waters.

它与传统的声纳探测技术相比，具有战术机动性强、探测速度快、特别适用于近海水域探测等优点。

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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

Dr Paxton has eschewed sonar detectors, underwater cameras and robot submarines in favour of an entirely different method of detection: statistics.

ECONOMIST: Statistics