Invention Grant
US09231811B2 Receiver device, transmit/receive terminal, propagation delay time measurement method and computer program 有权
接收设备,发射/接收终端,传播延迟时间测量方法和计算机程序

Receiver device, transmit/receive terminal, propagation delay time measurement method and computer program
Abstract:
A receiver device is provided with: channel estimation unit which obtains channel estimation values for a frequency domain on the basis of pilot symbols disposed in an OFDM subcarrier; interpolation unit which performs interpolation so that the number of samples of channel estimation values obtained by the channel estimation unit is a power of 2; transformation unit which transforms the channel estimation values interpolated by the interpolation unit into a time domain to obtain a delay profile; and power peak position detection unit which detects a power peak position of the delay profile so as to obtain a propagation delay time. The power peak position detection unit references the signal power of the portion interpolated by the interpolation unit in order to detect a suitable power peak position in the delay profile.
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