High-Precision 2.4 GHz DSSS RF Ranging - ENSCO Geolocation & Navigation Technical Paper (PDF)
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چکیده
Precision ranging radios are a critical aid to integrated locating, tracking, navigation, and guidance systems, especially when GPS service is degraded or unavailable [5]. In this work, a high-precision, software-defined, round-trip time-of-flight, direct sequence spread spectrum (DSSS) ranging radio operating in the 2.4 GHz ISM band is presented. This system builds upon our previous brassboard implementation at 915 MHz [1, 2], and continues ENSCO’s decade-long research in this area [6, 7] with system enhancements bringing the performance closer to the Cramer-Rao Lower Bound for round-trip DSSS time-of-flight ranging.
منابع مشابه
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تاریخ انتشار 2011