| 摘要 |
A method reduces errors in two-way ranging between transceivers due to a frequency offset. A first transceiver measures a time C A 1 between transmitting a request frame and receiving a reply frame, and a time C A 2 between receiving a first information bit of the reply frame and receiving a last information bit of the reply frame. A second transceiver measures a time C B 2 between receiving the request frame and transmitting the last information bit of the reply frame, and a time C B1 between receiving a first information bit of the request frame and a last information bit of the request frame. A correction factor ± c = C B �¢ 1 C A �¢ 2 is applied according to C ^ B �¢ 2 = C B �¢ 2 / ± c , and the one-way time is T ^ i = C A �¢ 1 - C ^ B �¢ 2 2 �¢ T i , where T i is an ideal period of the clocks of the transceivers.
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