{"title":"几何形状对无源tdoa算法精度的影响","authors":"I. Martín-Escalona, F. Barceló","doi":"10.1109/PIMRC.2008.4699736","DOIUrl":null,"url":null,"abstract":"This paper presents a positioning algorithm to improve the performance of location systems based on two-way TOA techniques. This algorithm, which we call passive-TDOA, consists of computing the time-difference-of-arrival (TDOA) measurements from the TOA messages that some terminals generate in the positioning process. Passive-TDOA offers accurate results under optimum geometry. This work goes a step further and evaluates the accuracy of the algorithm in scenarios with adverse geometry. Accordingly, scenarios with access points in line and non-line of sight are studied through simulation and compared with the accuracy achieved by means of regular TOA.","PeriodicalId":125554,"journal":{"name":"2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"2008 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":"{\"title\":\"Impact of geometry on the accuracy of the passive-TDOA algorithm\",\"authors\":\"I. Martín-Escalona, F. Barceló\",\"doi\":\"10.1109/PIMRC.2008.4699736\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper presents a positioning algorithm to improve the performance of location systems based on two-way TOA techniques. This algorithm, which we call passive-TDOA, consists of computing the time-difference-of-arrival (TDOA) measurements from the TOA messages that some terminals generate in the positioning process. Passive-TDOA offers accurate results under optimum geometry. This work goes a step further and evaluates the accuracy of the algorithm in scenarios with adverse geometry. Accordingly, scenarios with access points in line and non-line of sight are studied through simulation and compared with the accuracy achieved by means of regular TOA.\",\"PeriodicalId\":125554,\"journal\":{\"name\":\"2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications\",\"volume\":\"2008 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2008-12-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"8\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/PIMRC.2008.4699736\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PIMRC.2008.4699736","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Impact of geometry on the accuracy of the passive-TDOA algorithm
This paper presents a positioning algorithm to improve the performance of location systems based on two-way TOA techniques. This algorithm, which we call passive-TDOA, consists of computing the time-difference-of-arrival (TDOA) measurements from the TOA messages that some terminals generate in the positioning process. Passive-TDOA offers accurate results under optimum geometry. This work goes a step further and evaluates the accuracy of the algorithm in scenarios with adverse geometry. Accordingly, scenarios with access points in line and non-line of sight are studied through simulation and compared with the accuracy achieved by means of regular TOA.
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