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US20100020850A1 METHOD FOR ESTIMATING THE TIME OF ARRIVAL IN ULTRA WIDEBAND SYSTEMS 失效
估计超宽带系统到达时间的方法

METHOD FOR ESTIMATING THE TIME OF ARRIVAL IN ULTRA WIDEBAND SYSTEMS
Abstract:
Method and device for estimating the time-of-arrival of a received signal y(t), said method comprising the step of: generating a plurality of frequency-domain samples from the received signal y(t); estimating a correlation matrix (Formula I) from said plurality of frequency-domain samples; from said correlation matrix (Formula I), calculating a signal energy distribution with respect to different propagation delays; finding a delay value (Formula II) at which said signal energy distribution exceeds a certain threshold Pth, said delay value representing the time-of-arrival estimation.
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