Instantaneous Frequency Measurement (IFM) receivers are important for modern electronic reconnaissance systems.

瞬时测频接收机是现代电子侦察系统的重要组成部分。

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EW (electronic Warfare) receiver is a greatly important part of the electronic intelligence reconnaissance systems.

电子战接收机是电子情报侦察体系中的重要组成部分。

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For the components to the design a construction, a HWIL Simulation evaluation system for infrared warning & reconnaissance systems and its fundamental theory is introduced.

介绍了用于红外侦察告警系统性能评估的半实物仿真系统的硬件结构和软件模块组成。

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Independent Russian military analyst Viktor Litovkin says Russia lacks combat support systems rather than firing units, and notes that such systems consist of drones, precision weapons,reconnaissance,navigation, communication,and guidance systems,etc.

VOA: standard.2009.03.20

Arguably, the Blackbird has greater survivability than most U.S. space-based reconnaissance systems.

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

An effective command and control capability requires a wide range of information technologies aimed at increasing the reliability of remote sensing and reconnaissance systems.

CENTERFORSECURITYPOLICY: Center for Security Policy | Chinese Information Warfare: A Phantom Menace or Emerging Threat? | Page: 9

Defence minister Philip Dunne said intelligence, surveillance and reconnaissance systems were a "key component" of the MoD's investment in new equipment over the next 10 years.

BBC: Mini helicopter drone for UK troops in Afghanistan