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Method and system for arrival time estimation of ultra-wideband multiband orthogonal frequency division multiplexed signals
Method and system for arrival time estimation of ultra-wideband multiband orthogonal frequency division multiplexed signals
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机译:超宽带多频带正交频分复用信号到达时间估计的方法和系统
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摘要
A time-of-arrival (TOA) estimation method for multi-band orthogonal frequency division multiplexing (MB-OFDM) signals uses a simple equally-spaced channel model to recover the impulse response of the wireless channel, and locates the delay of the first channel path by minimizing the energy leakage from the first channel path. The TOA is estimated based on the delay. Such a method does not require channel information for TOA estimation at the receiver and does not require modification of the receiver structure. The method also avoids a sub-optimal solution known to occur in maximum likelihood (ML) estimation.
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