Deinterleaving of radar pulses is a crucial technology of radar reconnaissance system.

雷达信号分选是现代雷达侦察接收机信号处理的一项关键技术。

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Direction of arrival (DOA) estimation is an important topic in electronic reconnaissance system.

确定信号的波达方向是电子侦察系统的一个重要方面。

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Transmitting no electromagnetic wave, passive radar cannot be detected by hostile reconnaissance system.

无源雷达由于不发射电磁波，因而不易被敌方侦察系统探测到。

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At the top of Mr Struck's wish-list are a joint forces information system, reconnaissance equipment and armoured transport vehicles.

ECONOMIST: German defence

The SR-71 has proven its value as a complementary system to U.S. space-based reconnaissance assets during the prolonged period from 1985 to 1987 when the United States was unable to place new satellites in orbit.

CENTERFORSECURITYPOLICY: Center for Security Policy | Congress Must Preserve A Vital Strategic Reconnaissance Capability �� The SR-71

At Camp David, Bush can use the AMX system to change camera angles during a videoconference with General Tommy Franks, download reconnaissance photos and even adjust lighting.

FORBES: Product Placement