ULTRA-WIDEBAND RANGING AND LOCATION TRACKING

• Main Authors: Anderson, Fred Jay, Gandji, Navid Pourramzan, Badea, Robert Blaudia, Kalavakuru, Sivadeep Reddy
• Format: Patent
• Language: English
• Published: 12.09.2024
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING; WIRELESS COMMUNICATIONS NETWORKS

Ultra-Wideband (UWB) ranging and location tracking, and particularly an UWB antenna array system and methods for improving the accuracy for Phase-Difference-of-Arrival (PDOA) is provided. UWB ranging may include receiving a poll signal from a client via a first and second antenna. PDOA between the first and second antenna is determined based on the poll signal. A response signal is transmitted to the client, and a first portion of a final signal is received via the first antenna and a third antenna and a second portion of the final signal is received via the second and third antenna. PDOA between the first and third antenna is determined based on the first portion, and PDOA between the second and third antenna is determined based on the second portion. The client location is then determined based on the PDOAs.