With the development of the human society, positioning services have been frequently incorporated into our daily lives in the forms of vehicle navigation, human positioning, online social networking location check-in, etc. A wide variety of applicable areas raise the importance of positioning service. Recently emerged Wireless Sensor Network (WSN) acts as a wireless communication technology
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The overall monitoring in water piping systems, which leak detection and leak pointlocalization occupies an extremely important position. Depth study of the water pipeline leakdetection and location methods and techniques, has great practical value. The losses of urbanand rural water supply system in China caused by pipeline leakage quite amazing each year.This is only a
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In wireless sensor network, node localization is one of the most basic functions of sensor nodes. The monitoring data combined with node location information is just practical significance. For indoor office environment, because of the influence of channel environment such as multipath, the location accuracy of indoor WSN is greatly affected. The UWB communication technology
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Sniper location system is a hot topic in modern IT-based warfare. It is vitally significant for soldier’s health guarantee as well as taking immediate action to strike back.According to the physical effects happening during a shot, sniper location can be determined either by acoustic, infrared characteristics or laser reflection, among which acoustic detection is deemed
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The International Cospas-Sarsat (C/S) Programme provides accurate, timely, and reliable distress alert and location data to help search and rescue (SAR) authorities assist persons in distress. C/S System including satellites in low-altitude Earth orbit and geostationary Earth orbit, as well as the corresponding ground equipment, provides distress alerts to SAR services and inquiry service of
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With Mobile and Internet move into people’s life more and more deeply, people eager to make available communication tools fusion in the Internet which is the same communication environment in any time and any place, it can realize all kinds of communication tools of complementary and integration. People no longer limited to a single online
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Detection and location for multiple sources are important division of underwater acoustic signal processing. The traditional methods based on plane wave are unable to be used to locate far underwater targets due to the complicated the manner in which sound propagate in the ocean, while time-reversing and matched-field processing can be used to estimate both
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As the access to information, transmission, and then get the information on three aspects of processing and fusion of sensor network technology, it can through various modular sub-sensors, coordinated to collect all the required amount of information in real time monitoring, sensing and data acquisition. For the collected data, processed by the embedded system, the
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As a new type of self-managed data collection network, the wireless sensor network (WSN) integrates the ability of wireless communication, data collection and information disposal. For many application of wireless sensor network, location information is so important that it determine whether the imformation which captured by sensor nodes can be used. So, the technique of
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With the rapid development of urbanization, the population of cities is growing and the scope of life is expanding. The problem of people’s lives emerges under the travel pressure. Both in developed and developing countries, ITS(Intelligent Transportation System) is one of the indicators of economic growth, and APTS (Advanced Public Transportation System) is an important
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