Method for Channel Correction and Target Speed Estimation for High Accuracy Distance Measurements

Abstract

A system and method for determining the distance between two wireless network devices, wherein at least one of the devices may be moving, is disclosed. The system and method generate a corrected channel response. The information from the channel correction process may be used to identify the radial speed of the moving device. This radial speed is then used to compensate the measured channel response, such that the channel response is devoid of any radial speed component. In this way, any suitable algorithm may use the corrected channel response to determine the distance between the two devices. Importantly, the system and method can determine the radial speed within a single Channel Sounding procedure, thus reducing the time and battery power required to perform these calculations.

Dependencies are inferred from the claim text.