Abstract: A system and method for determining the orientation of a linear array of radio receivers in space is provided. The system includes a primary radio receiver and a plurality of secondary radio receivers arranged in a collinear configuration and irregularly spaced apart from one another. The primary radio receiver and plurality of auxiliary radio receivers capable of receiving radio signals from a plurality of transmitters located in known, surveyed locations in a coordinate system. With the location of the primary receiver determined, the direction in which the aligned radio devices is pointed relative to the transmitters is then determined by using the phase angle of arrival (AoA) data from each transmitter.

Abstract: A system and method for determining the range, angle, and elevation of a target object having a radio transceiver relative to a known location is provided. The system includes a primary radio transceiver located an initially unknown distance from the target object, and at least one auxiliary radio receiver located a known distance and angle relative to a reference bearing from the primary radio transceiver. The system further includes a processing unit in communication with the primary radio transceiver and at least one auxiliary receiver. The processing unit is capable of calculating the range between the primary and the target object and the angle to the target object relative to the reference bearing.

Abstract: A system and method for determining the range, angle, and elevation of a target object having a radio transceiver relative to a known location is provided. The system includes a primary radio transceiver located an initially unknown distance from the target object, and at least one auxiliary radio receiver located a known distance and angle relative to a reference bearing from the primary radio transceiver. The system further includes a processing unit in communication with the primary radio transceiver and at least one auxiliary receiver. The processing unit is capable of calculating the range between the primary and the target object and the angle to the target object relative to the reference bearing.

Abstract: A system and method whereby a group of synchronized anchor nodes transmit the identical radio signal packet at a specified time or specified times, which multiple signal packets are received at one or more tag/receiving nodes located within the area of use is provided. First, the time of each of the plurality of anchor nodes is synchronized relative to the other anchor nodes. A transmit time is then specified for each of the anchor nodes to transmit the identical data packet of information from each individual anchor node. The identical data packet of information and specified transmit time are then provided to each of the anchor nodes. The identical data packet of information is then transmitted from each anchor node into the area of use, wherein each of the identical data packets are transmitted from each respective one of the plurality of anchor nodes at the transmit time specified for that anchor node.

Abstract: A system and method for location of objects in 2-dimensional and 3-dimensional space using a minimum number of timed RF transmissions. System consists of a mobile device and a plurality of surveyed anchors. Two-Way Ranging (TWR) is done between the tag and any single anchor and the distance between the tag and remaining anchors is determined through listening to, or snooping, the TWR packet transmissions.