Assessing Terrestrial Wireless Communications and Broadcast Signals as Signals of Opportunity for Positioning and Navigation

Chun Yang, Thao Nguyen, Erik Blasch, Di Qiu

Abstract:	In this paper, we investigate three types of signals of opportunity (SOOP), namely, digital television (DTV), Global System for Mobile communications (GSM), and Code Division Multiple Access (CDMA 2000) single carrier radio transmission technology (1x RTT) for navigation and positioning. The radio interfaces and signal standards reveal similarities but also important differences between them, which affect navigation and positioning performance. To better understand the benefits and drawbacks for a SOOP-based navigation system, we will present performance comparisons both analytically based on signal standards and experimentally using real data. Analytically, we will compare the channel structure, chip rate, frame length, coherent integration time, spreading power, base station synchronization, and tracking performance, among others. Experimentally, we use a mobile testbed built from commercial off the shelf (COTS) components to validate our analytical results. The testbed consists of a multi-channel software-defined radio and associated software receivers. Results related to tracking robustness and stability of these three types of signals of opportunity under mobile situations in different environments have demonstrated that a combined solution of DTV+CDMA is recommended.
Published in:	Proceedings of the 25th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2012) September 17 - 21, 2012 Nashville Convention Center, Nashville, Tennessee Nashville, TN
Pages:	3814 - 3824
Cite this article:	Yang, Chun, Nguyen, Thao, Blasch, Erik, Qiu, Di, "Assessing Terrestrial Wireless Communications and Broadcast Signals as Signals of Opportunity for Positioning and Navigation," Proceedings of the 25th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2012), Nashville, TN, September 2012, pp. 3814-3824.
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