Chapter 1 Wireless Positioning Systems : Operation , Application , and Comparison
نویسنده
چکیده
RECENT YEARS have seen rapidly increasing demand for services and systems that depend upon accurate positioning of people and objects. This has led to the development and evolution of numerous positioning systems. This chapter provides an overview of the main positioning techniques: time of arrival ( TOA ), direction of arrival ( DOA ), and received signal strength indicator ( RSSI ). It then introduces positioning systems that are either in use or being developed for a variety of applications. Operations of these positioning systems are summarized using fl owcharts and fi gures. In addition, the chapter compares positioning systems on the basis of system characteristics and performance parameters. Many of these positioning techniques and systems are introduced in greater detail throughout different parts of this handbook. The chapter concludes by reviewing a number of emerging positioning systems and outlining some future applications.
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