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Study on RSSI-based Indoor Wireless Location Program

Author: XuRiMing
Tutor: ZhuangChangYuan
School: Nanjing University of Aeronautics and Astronautics
Course: Management Science and Engineering
Keywords: Indoor Wireless Location Received signal strength indicator The distance - loss model Environmental factors Wireless sensor networks
CLC: TN929.5
Type: Master's thesis
Year: 2010
Downloads: 320
Quote: 3
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Abstract


Wireless Location , refers to the use of the existing wireless communication network resources, through the estimated mobile terminal and each base station between the signal parameters , and the network or the mobile terminal by means of a positioning algorithm to determine the location of the mobile terminal . Since the U.S. FCC ( Federal Communications Commission) was released in 1996 since the E-911 positioning standards , wireless positioning technology to its infinite commercial potential implication of setting off a craze of the study . With the rapid development of mobile processing technology at the same time , the increasing demand for information on indoor positioning , airports , exhibition halls , office buildings , warehouses , underground parking and all require accurate indoor positioning information . GPS can provide very accurate positioning information in the tall dense urban and indoor barrier too , can not receive satellite signals , GPS positioning difficulties , research on indoor wireless location technology to become a new craze . In this paper, based on the widely read classic literature at home and abroad , as well as access to orient the latest research results , the two based on the received signal strength indication (Received Signal Strength Indicator, RSSI) indoor wireless positioning program . One is based on the the RSSI dynamic correction indoor wireless location program , proposed a new cloth points in reference to the classic distance - loss model based on environmental factors in the model , and then use the reference point and the weighted average ideological dynamic correction and centroid principle for solving the mobile point coordinates . To a certain extent , the program addresses to locate errors lead to distortion of the distance - loss model for indoor complex and changing environment . The other is based on the RSSI trends indoor wireless location program , put aside all the complex positioning model of the program , with a particular geographical environment , take advantage of the RSSI changes in trend with the distance between the position , this positioning , positioning accuracy not high, but its cost is very very low , very simple devices to meet . The program can be used as those complex indoor environments , the positioning accuracy is less demanding and requires a viable option for low - cost positioning needs .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Mobile Communications
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