In recent years, with th e development of near field communication (NFC) and mobile technology, indoor lo cation-based services (LBS) has received considerable attention. Traditional indoor location t echnology such as in frared technology and Bluetooth technology ca nnot fully m eet users’need in system cost, stability, positioning accuracy and so on. The UWB technology
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The development of sensor technology, microelectronic technology， computingtechnology and wireless communications technology promotes the emergence anddevelopment of wireless sensor network (WSN), Wireless sensor network is composed by alarge number of micro sensor nodes distributed in a fixed area within the network, thesesensor nodes have data-aware and data processing capabilities, and can be interconnected bywireless channel.
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Fiber Bragg grating （FBG） sensor has become an important kind of fiber sensor. FBGsensor mainly uses the resonant wavelength drift for accurate measurement. Compared withelectronic sensors, it has not sensitive electromagnetic, distribution remote monitoring andother advantages, so has a broad prospect of application in civilian use and industrial fields.Demodulation technology has relationships with the sensor’s
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Wireless sensor networks (WSN) is composed of a large number of sensor nodeswho have the capabilities of perception, computing and wireless communication. InWSN, monitoring the specific location of the incident is the premise of the sensornetwork for target identification, monitoring, tracking, and many other applications.Therefore, to study the low-power and low-error localization algorithm is an
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Wireless sensor networks, which integrate technologies of micro-electro- mechanism, sensing, embedded computing, distributed information processing and wireless com-munication. Wireless sensor networks, as a brand-new technique in information acquisition and processing, can be widely used in many areas such as national defense, environmental supervision, medical treatment, outer space exploration, counter-terrorism and disaster retrieval. It is considered
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It is an intersectional technique of multiple subjects such as sensing, computing, communicating, information processing that the technology of Wireless Sensor Network has wide application in both military and civil areas. The technology of node self-localization is crucial but basic one of Wireless Sensor Network that the node location should be known first among numerous
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In this paper I had images of laser tracking system in detail base on the DSPC6416. The system use high-performance DSP (TMS320C6416) to complete real-time images of the laser tracking. FPGA did pre-Laser Image. The system meted the requirements of real-time. In this paper I had some discussion about high-speed digital circuit design.In this paper
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As a revolutionary smart spectrum sharing technology, cognitive radio (CR) can significantly improve the spectrum utilization, which can be able to seek and use in a dynamic way the frequencies for network access by autonomous detection of vacant bands in radio spectrum. The key problem in cognitive radio network is how to use spectrum sensing
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In recent years, the accidents of marine oil spill happened frequently. A large quantity of oil spills into the sea, and has made tremendous damage to the marine environment and halobios. Many countries are actively researching, to srengthen the oil flim on the marine oil spill monitoring and control, including the spreading, size, thickness of
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