Rsearch Of The Wireless Sensor Network Localization Algorithm

Advances in MEMS(Micro-Electro-Mechanism System),SOC(System on Chip)and Wireless Communications have made WSN(Wireless Sensor Network)possible, here each sensor node individually senses the environment but collaboratively chieves complex information gathering and dissemination tasksInstrumenting the physical world through large networks of wireless sensor nodes requires that these nodes be very small, lightweight, untethered, and unobtrusive. These networked sensor nodes, however, possess several characteristics that have challenged many aspects of traditional computer network design. The problem of self-localization, that is, determinin where a given node is physically or relatively located in a network, is one of the challenging tasks.and yet extremely crucial for many applications.The research of this thesis is based on the research results of the Wireless Sensor Network Self-Localization algorithm and its application in military include:1. This paper gives an instruction about the architecture and characteristic of wireless sensor network. Contrast the wireless sensor network with other networks. Analysis the problem about what the reseach of the wireless sensor network is facing.2. The taxonomy for wireless sensor networks localization system and algorithms are described, the principles and characteristics of recent representative localization approaches are discussed andpresented in detail.3. The preponderances of the wireless sensor network when used in military are described,and the use of the wireless sensor network in military is summarized。Combine the national defense engineering of oneself participation item, all said base electromagnetism to radiate source fixed position and monitor system, described the realization of the system fixed position process and fixed position calculate way in detail.