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Radio positioning systems rely on transmission and reception of radio-frequency signals for target position determination. A specific system makes use of one or more signal parameters, including the time-of-arrival (TOA), the time-difference-of-arrival (TDOA), the received signal strength (RSS), the received power profile, the angle-of-arrival (AOA), and the received signal phase. To achieve efficient signal transmission and/or reception, careful signal design must be performed, which is vital in the design of positioning systems. The choice of signaling methods will greatly affect the performance of positioning systems. When designing signals, a number of issues needs to be considered, including positioning accuracy, power consumption, frequency bandwidth, interference, cost, and policy compliance. This chapter focuses on some of the main aspects of radio signaling concepts and techniques.
KeywordsFrequency Modulated Continuous Wave (FMCW) FMCW Radar Linear Feedback Shift Register (LFSR) Raised Cosine Pulse Gold Codes
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