Abstract
To satisfy the dynamic requirements of the millimeter-waveband, the higher time delay resolution is required. Time delay resolution of pseudo-noise (PN) cross-correlation channel sounding method can be limited by chip rate and sampling rate of analog to digital converter (A/D). In this letter, the multipath information in the chip is approximated using equivalent sequential sampling at a lower sampling rate, followed by the deconvolution method to derive the channel impulse response (CIR). Compared with the PN cross-correlation method, the time delay resolution of new method is much smaller than the chip width with a low sample rate of A/D. To improve time delay resolution over a wide range of time delays, we integrate the novel method with the PN cross-correlation method. Moreover, we have designed a novel channel simulator in order to verify the effectiveness of super-resolution approach of time delay.
Published Version
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