FACEBOOK, INC. (Menlo Park, CA)

One embodiment of the method involves determining the received power of an antenna for receiving that is connected to an antenna measurement device by a transmitting an antenna mounted on an antenna measurement system in motion relative to the antenna measurement equipment as well as determining one of the first orientation parameters of the antenna measurement software; determining one of more secondary orientation parameters of the DUT; and determining the pattern of the antenna of the transmitting an antenna by analyzing the power received and the first orientation parameters. second orientation parameters.

Antennas found on aircrafts are utilized for wireless communication with ground or aerial vehicles and stationary structures. Antennas emit or radiate signals that facilitate the connectivity and communications. An antenna pattern describes the signals that are radiated. complex antenna patterns are produced by scattering and reflection from airplane antennas and mounted components. An antenna pattern is the ratio of power density (measured indB) of the signal transmitted by an antenna in a specific direction. The patterns of antennas on aircraft are rarely uniform or spherical. They are usually complex, with nulls and peaks that differ. Characterizing antenna patterns using an antenna measurement device could be helpful in increasing the size and strength of wireless connectivity. An antenna measurement system typically comprises probes and transceivers, which include an IMU altimeter, GPS/GLASS, and an inertial measuring device (IMU).

In specific embodiments an antenna measurement system can determine and analyze an unidentified antenna pattern produced by an antenna attached to an aircraft. The combination of the antenna and the aircraft could be referred to as a device in test (DUT). The antenna measurement system can be installed on an automobile. It could be an airborne vehicle (e.g. N-copter) or a ground-based vehicle, or station installation (e.g. base station). An antenna measurement device could comprise several antennas that are mounted on the vehicle at different places. It could also comprise one or more gimbals to control the antenna, and perhaps two or three pieces of foam that absorbs any unwanted signals. The antennas could be orthogonal probes with ability to measure phase, which could permit the antenna measurement system to characterize linear, circular, and elliptically-polarized antenna patterns. An antenna measurement system may also include elements for orientation and location measurement, like IMUunits and GPS, along with an altimeter. The antenna measurement system may travel around the DUT while the DUT produces an unknown pattern of the antenna. An antenna measurement system can detect and record the signals generated by the DUT. The antenna measurement device may also use the location data from the measurement components to combine the DUT data along with the orientation information to provide an accurate description of the antenna pattern. This can be achieved through the implementation of the following procedure to determine the received power at a receiving antenna attached to an antenna measurement system using an transmitting antenna that is mounted to a device in test (DUT) in motion relative to the measurement device for antennas; determine one or more first orientation parameters for the antenna measurement system, determine one or more second orientation parameters of the DUT; and determine an antenna pattern for the transmitting antenna using the received power as well as the initial orientation parameters as well as the second orientation parameters. In particular embodiments, this process may be implemented with an antenna for receiving that is mounted on the DUT as well as a transmitting antennamounted on the DUT.

These embodiments are examples only. The scope of the disclosure is not constrained by them. A particular embodiment could include all or a portion of the components, elements and features, as well as operations as well as steps and functions mentioned above. Embodiments according to the invention are specifically defined in the attached claims that relate to a method, a storage device, a system, or a computer program product wherein any feature mentioned in one claim category,e.g. method, is also claimed in another claim category, e.g. system. The claims are not based on references or dependencies. They’re only selected because of formal reasons. But any subject matter that arises from a deliberate reference to previous claims (in particular, multiple dependencies) can be claimed too, so that every combination of claims as well as their features are revealed and are able to be claimed regardless of the dependencies that are selected in the attached claims. Subject matter can comprise not just combinations of features described in the attached claims, but also any combination of features contained within the claims. Each feature in the claims could be combined with another feature or a combination of features. Furthermore each of the examples and features that are described or illustrated herein may be claimed in a distinct claim, or in combination with any embodiment or feature described or depicted herein or any of the features of the claims attached.

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