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    • 3. 发明申请
    • Time transfer utilizing ultra wideband signals
    • 利用超宽带信号进行时间传输
    • US20060291537A1
    • 2006-12-28
    • US11140535
    • 2005-05-28
    • Larry FullertonMark RobertsJames Richards
    • Larry FullertonMark RobertsJames Richards
    • H04B1/69
    • G01S7/4052G01S13/0209G01S13/765G01S2007/4065G01S2007/4069G01S2007/4082G06K7/10306H04B1/7183
    • Time is transferred from an ultra wideband (UWB) transmitter to UWB receiver by transmitting a signal structure having an associated timing reference point together with a time value for the timing reference point. The UWB receiver receives the timing signal structure by synchronizing a receiver time base to the signal structure, demodulating the time value information, and using the demodulated time value information to set a receiver clock value. Propagation delay information is used to adjust the receiver clock value by advancing the receiver clock value to account for the propagation delay. In one embodiment, propagation delay is determined from a known distance between the transmitter and receiver. In another embodiment, the transmitter and receiver are part of a two-way link wherein propagation delay is measured by round trip timing measurements.
    • 通过发送具有相关联的定时参考点的信号结构以及定时参考点的时间值,将时间从超宽带(UWB)发射机传送到UWB接收机。 UWB接收机通过将接收机时基同步到信号结构,解调时间值信息,并使用解调时间值信息来设置接收机时钟值来接收定时信号结构。 传播延迟信息用于通过提高接收机时钟值来考虑传播延迟来调整接收机时钟值。 在一个实施例中,从发射机和接收机之间的已知距离确定传播延迟。 在另一个实施例中,发射机和接收机是双向链路的一部分,其中通过往返定时测量来测量传播延迟。