System and method for accurate radio frequency position estimation in the presence of multiple communication paths

摘要

Disclosed herein are systems and methods for determining the location of a wireless node within a network architecture. In one example, an asynchronous system includes a first wireless device having one or more processing units and an RF circuitry for transmitting and receiving communications in a wireless network architecture that includes a first RF signal having a first packet. Includes wireless nodes. The system also includes a second wireless node having a wireless device having a transmitter and a receiver to enable bi-directional communication with a first wireless node in a wireless network architecture that includes a second RF signal having a second packet. Including. The first radio node determines a time of flight estimation for position estimation based on a time estimate of the round trip flight time of the first and second packets and a time estimate based on channel sensing information of the first and second radio nodes. [Selection] Figure 4