A method for evaluating the position of an aerial vehicle involves receiving a radio signal from the aerial vehicle with an antenna array, determining the direction of arrival of the received radio signal, forming a reception beam of the antenna array depending on the determined direction of arrival for receiving one or more further radio signals from the aerial vehicle, calculating the ranging between the aerial vehicle and the antenna array based on a radio signal provided for ranging and received from the aerial vehicle, and evaluating the position of the aerial vehicle based on the calculated ranging, the determined direction of arrival, and the known position of the antenna array.

A speech-processing apparatus includes: a representative transfer function estimation unit that uses a sound signal which is collected by using a microphone array of which the arrangement is unknown, which has a plurality of channels, and of which the number of sound sources is unknown and that estimates a transfer function with respect to a sound source.

A method of direction finding (DF) positioning in a wireless location area network (WLAN) is proposed. A multiple antenna IEEE 802.11 transmitting device can transmit signal preamble containing multiple Long Training Field (LTF) symbols in a radio frame from multiple antennas simultaneously, which allows a receiving device to resolve multiple DF sounding signals transmitted from the multiple antennas. As a result, angle of departure (AoD) of the transmitting device can be estimated by using the multiple resolved DF sounding signals from each antenna for DF positioning purpose.

An antenna array for reception of radio waves includes a first leg aligned in a first direction, a second leg aligned in a second direction, a third leg, and a communication module. The elements of the first linear subarray are spaced by a first distance. The elements of the second linear subarray are spaced by a second distance. The first distance is not equal to the second distance. The second direction is orthogonal to the first direction. The third linear subarray is aligned in a third direction that is collinear to the first direction or at an angle of 45 degrees between the first direction and the second direction. The communication module receives the radio waves from the first leg, the second leg and the third leg and determines a two dimensional direction of the source of the radio waves.

An antenna array for reception of radio waves includes a first leg aligned in a first direction, a second leg aligned in a second direction, a third leg, and a communication module. The elements of the first linear subarray are spaced by a first distance. The elements of the second linear subarray are spaced by a second distance. The first distance is not equal to the second distance. The second direction is orthogonal to the first direction. The third linear subarray is aligned in a third direction that is collinear to the first direction or at an angle of 45 degrees between the first direction and the second direction. The communication module receives the radio waves from the first leg, the second leg and the third leg and determines a two dimensional direction of the source of the radio waves.

A system and method for an arrayed sensor to resolve ambiguity in received signals, improve direction of arrival accuracy and estimate a location of one or more targets in an environment including signal interference.

A system and method for an arrayed sensor to resolve ambiguity in received signals, improve direction of arrival accuracy and estimate a location of one or more targets in an environment including signal interference.

Systems and methods for determining user equipment (UE) locations within a wireless network using reference signals of the wireless network are described. The disclosed systems and methods utilize a plurality of in-phase and quadrature (I/Q) samples generated from signals provided by receive channels associated with two or more antennas of the wireless system. Based on received reference signal parameters the reference signal within the signals from each receive channel among the receive channels is identified. Based on the identified reference signal from each receive channel, an angle of arrival between a baseline of the two or more antennas and incident energy from the UE to the two or more antennas is determined. That angle of arrival is then used to calculate the location of the UE. The angle of arrival may be a horizontal angle of arrival and/or a vertical angle of arrival

A method, a sensor system, and a non-transitory computer readable medium are provided. Embodiments comprise receiving a plurality of incident signals reflected from a target at a plurality of receiver antennas. A processor identifies a subset of receiver antennas from the plurality of receiver antennas and performs angle of arrival (AOA) processing on respective incident signals of the subset of receiver antennas. The processor determines an angle of arrival of the target based on the AOA processing.

A method, a sensor system, and a non-transitory computer readable medium are provided. Embodiments comprise receiving a plurality of incident signals reflected from a target at a plurality of receiver antennas. A processor identifies a subset of receiver antennas from the plurality of receiver antennas and performs angle of arrival (AOA) processing on respective incident signals of the subset of receiver antennas. The processor determines an angle of arrival of the target based on the AOA processing.