Wi-Fi assistance to SUPL-based Assisted-GPS simulators for indoor positioning
Wi-Fi assistance to SUPL-based Assisted-GPS simulators for indoor positioning
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DOI：
10.1109/ccnc.2011.5766641
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发表时间：
2011-05
期刊：
影响因子：
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通讯作者：
M. Sundaramurthy;Sandesh N. Chayapathy;Abhinav Kumar;D. Akopian
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文献类型：
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作者：
M. Sundaramurthy;Sandesh N. Chayapathy;Abhinav Kumar;D. Akopian
全球定位系统（GPS）已经是用于在开放天空环境中定位的最流行的选择，但是其在处理来自建筑物、树木等的信号阻塞方面的困难限制了其在城市环境、地下并且特别是室内的操作。定位技术的最新进展导致了辅助GPS（A-GPS）技术的发展，该技术可以使用辅助信息在许多具有挑战性的环境中令人满意地操作。由于技术测试是一个主要的发展组成部分，本文介绍了一种低成本的方法，以增加传统的GPS模拟器与A-GPS测试支持。A-GPS支持使用Wi-Fi定位技术和IP地址定位的概念提供。模拟器和接收器之间的通信根据安全用户平面定位（SUPL）协议。目前，只有高端模拟器支持A-GPS接收机的测试，因为除了GPS信号生成之外，还涉及辅助生成和向接收机提供。
The Global Positioning System (GPS) has been the most popular choice for positioning in open-sky environments, but its difficulty in dealing with signal blockage from buildings, trees and the like has limited its operation in urban environments, underground and especially indoors. Recent advancements in location technology have led to the development of Assisted GPS (A-GPS) technology that can operate satisfactorily in many challenging environments using aiding information. As technology testing is a major development component, this paper describes a low cost approach to augment conventional GPS simulators with A-GPS testing support. The A-GPS support is provided using the concept of Wi-Fi positioning technology and IP address location. The communication between the simulator and the receiver is in accordance with the Secure User Plane Location (SUPL) protocol. Currently only high-end simulators support testing of A-GPS receivers as it involves assistance generation and delivery to the receivers in addition to GPS signal generation.