A method, apparatus and computer program product are provided to improve the positioning performance of a positioning application. The method receives particular radio signal propagation information regarding received radio signal propagation parameter of a respective signal collected by a mobile device following transmission by a beacon on a sub-channel. The method also receives past radio signal propagation information regarding the received radio signal propagation parameter of signals previously transmitted by the beacon and collected by the mobile device on one or more sub-channels. Based on the particular radio signal propagation information and the past radio signal propagation information, the method determines a value for representing the respective signal that is different from the received radio signal propagation parameter of the respective signal. The method represents the respective signal with the value determined based on the particular radio signal propagation information and the past radio signal propagation information.

A machine learning method performed by a communication network monitoring device in which an incoming signaling record is received that includes radio signal attributes from a UE in the cellular communication network. A determination is made as to whether the UE incoming signaling record contains location (GPS) data. If the UE incoming signaling record contains GPS data, a machine learning model is generated for determining a location of future UEs in the communication network utilizing the GPS data and the radio signal attributes from the incoming UE signaling record. And if GPS data is not included in the UE incoming signaling record, then the geolocation for the UE is predicted using machine learning techniques utilizing a previous generated machine learning model as applied to the radio signal attributes from the incoming UE signaling record.

An optical detector system provides beam positioning data to an optical tracking system to facilitate optical communications. The optical detector system comprises a plurality of optical photodetectors. For example, a two-by-two array may be used. Incoming light passes through one or more optical elements, such as a lens and a dispersive optical element. A first portion of the beam entering the optical elements is directed into a first spot having a first area on the array. A second portion of the beam entering the optical elements is dispersed to form a second spot having a second area on the array that is larger than the first area. This combination of first portion and second portion of the beam incident on the array provides unambiguous information in the output of the photodetectors that is indicative of a position of the incoming beam with respect to the array.

An optical detector system provides beam positioning data to an optical tracking system to facilitate optical communications. The optical detector system comprises a plurality of optical photodetectors. For example, a two-by-two array may be used. Incoming light passes through one or more optical elements, such as a lens and a dispersive optical element. A first portion of the beam entering the optical elements is directed into a first spot having a first area on the array. A second portion of the beam entering the optical elements is dispersed to form a second spot having a second area on the array that is larger than the first area. This combination of first portion and second portion of the beam incident on the array provides unambiguous information in the output of the photodetectors that is indicative of a position of the incoming beam with respect to the array.

An anechoic chamber and test system that is adapted for installation in or to a vehicle. The chamber includes an outer structure that is durable enough to withstand the effects of transportation. The anechoic chamber and test system may also include an inner faraday shield, a transmission antenna, and a controller that can introduce GNSS, alternative navigation signals, jamming, or spoofing signals into the anechoic chamber along with vehicle sensor signals. The controller is adapted to monitor a GNSS system's ability to resist the jamming or spoofing signals using, at least in part, the vehicle sensor signals.

A field-assembled satellite communications terminal has a plurality of discrete, modular aperture blocks. Each aperture block contains an electrically steered antenna aperture, and a plurality of interconnection ports for power and data communications between the plurality of aperture blocks. The plurality of interconnection ports are removably connectable by the end user in the field. The terminal further has a signal processing system for receiving, processing, and generating signals to and from the apertures. The aperture blocks are connected to each other in the field and self-configure to form an electrically-steered antenna.

A field-assembled satellite communications terminal has a plurality of discrete, modular aperture blocks. Each aperture block contains an electrically steered antenna aperture, and a plurality of interconnection ports for power and data communications between the plurality of aperture blocks. The plurality of interconnection ports are removably connectable by the end user in the field. The terminal further has a signal processing system for receiving, processing, and generating signals to and from the apertures. The aperture blocks are connected to each other in the field and self-configure to form an electrically-steered antenna.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a device may receive layout information that identifies a configuration of an antenna array of antennas, wherein the antenna array is to include a plurality of antenna subarrays and a plurality of antenna chips, wherein each antenna chip is communicatively coupled to antennas of an associated antenna subarray; determine, based at least in part on a phase shift characteristic associated with the antennas, a set of phase differences between antenna subarrays; determine, based at least in part on the set of phase differences, a chip position of each antenna chip relative to the associated antenna subarray; and generate, based at least in part on the chip position of each antenna chip, a layout of an antenna package to receive the antenna array and the plurality of antenna chips. Numerous other aspects are provided.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a device may receive layout information that identifies a configuration of an antenna array of antennas, wherein the antenna array is to include a plurality of antenna subarrays and a plurality of antenna chips, wherein each antenna chip is communicatively coupled to antennas of an associated antenna subarray; determine, based at least in part on a phase shift characteristic associated with the antennas, a set of phase differences between antenna subarrays; determine, based at least in part on the set of phase differences, a chip position of each antenna chip relative to the associated antenna subarray; and generate, based at least in part on the chip position of each antenna chip, a layout of an antenna package to receive the antenna array and the plurality of antenna chips. Numerous other aspects are provided.

A radio frequency (RF) device includes a spatial orientation sensor and logic circuit configured to determine spatial orientation of the RF device relative to a reference position or relative to a RF transmitter. In particular, the RF device determines a distance between the RF receiver and the RF transmitter based on a received signal strength of the signal and a determined spatial orientation of the RF device, by determining an orientation compensation value from a stored orientation compensation profile and determining a resulting compensated received signal strength. The RF device is thereby able to determine distance in an orientationally-invariant manner.