G01S19/36

HIGH-PRECISION REAL-TIME SATELLITE POSITIONING APPARATUS AND METHOD THEREOF
20170343679 · 2017-11-30 ·

The present invention relates to a high-precision real-time satellite positioning apparatus and a method thereof. The present invention has technical features as follows: the apparatus includes a polygonal receiver array formed by a plurality of single-point satellite positioning receivers; an antenna phase center of each single point satellite positioning receiver is disposed at each vertex and center point of the polygonal receiver array; each single-point satellite positioning receiver includes an MCU and a receiver connected with the MCU; and all MCUs are connected in parallel and jointly connected to a processor module.

ADAPTATIVE ANTENNA ASSEMBLY FOR IMPROVING PRECISION OF A GNSS RECEIVER IN A PERTURBATED ENVIRONMENT

The invention discloses an antenna assembly comprising one or more sensors, possibly a fish-eye camera which produces images of the sky above the antenna, said images being processed to identify open sky and occulted sky areas, said identification being used to generate an antenna gain pattern shape wherein null zones are placed on the occulted sky areas, so as to eliminate the GNSS signals which are affected by multi-path reflection. The antenna assembly of the invention may be used with any GNSS receiver of the prior art. No specific data on the location of the receiver or its orientation is needed to perform the method of the invention, while in some embodiments, it may be useful to send some information on the number of satellites in view in the open sky.

Phase centre compensation for high precision GNSS antennas

A method for determining a position of a phase centre of an antenna arranged in a mobile device, in particular a vehicle, wherein the antenna is operable to receive satellite signals in a global navigation satellite system, the method comprising: receiving, with the antenna, satellite signals from satellites of the global navigation satellite system; determining a direction from which the satellite signals are received based on the received satellite signals; and determining the position of the phase centre of the antenna based on the direction from which the satellite signals are received and stored correlation information indicative of a correlation between the position of the phase centre and the direction from which the satellite signals are received.

Phase centre compensation for high precision GNSS antennas

A method for determining a position of a phase centre of an antenna arranged in a mobile device, in particular a vehicle, wherein the antenna is operable to receive satellite signals in a global navigation satellite system, the method comprising: receiving, with the antenna, satellite signals from satellites of the global navigation satellite system; determining a direction from which the satellite signals are received based on the received satellite signals; and determining the position of the phase centre of the antenna based on the direction from which the satellite signals are received and stored correlation information indicative of a correlation between the position of the phase centre and the direction from which the satellite signals are received.

Communication apparatus, information processing apparatus, and information processing method
11668838 · 2023-06-06 · ·

A Provided is a communication device that includes a plurality of antenna units that are arranged in an array. Each of the antenna units includes a first antenna element and a second antenna element that are arranged in a first direction, a first receiving unit that receives a first wireless signal used in satellite positioning, via the first antenna element, and a second receiving unit receives a second wireless signal used in the satellite positioning, via the second antenna element. Among the antenna units, a first and a second antenna units that are positioned adjacently to each other in a second direction being perpendicular to the first direction are arranged in such a manner that the first antenna element in one of the first and the second antenna is positioned adjacently to the second antenna element in the other antenna in the second direction.

Communication apparatus, information processing apparatus, and information processing method
11668838 · 2023-06-06 · ·

A Provided is a communication device that includes a plurality of antenna units that are arranged in an array. Each of the antenna units includes a first antenna element and a second antenna element that are arranged in a first direction, a first receiving unit that receives a first wireless signal used in satellite positioning, via the first antenna element, and a second receiving unit receives a second wireless signal used in the satellite positioning, via the second antenna element. Among the antenna units, a first and a second antenna units that are positioned adjacently to each other in a second direction being perpendicular to the first direction are arranged in such a manner that the first antenna element in one of the first and the second antenna is positioned adjacently to the second antenna element in the other antenna in the second direction.

INFORMATION PROCESSING DEVICE AND INFORMATION PROCESSING METHOD

The present disclosure relates to an information processing device and an information processing method capable of realizing attitude estimation more suitably.

A reception control unit controls a plurality of antennas such that the antennas switch and receive positioning signals from positioning satellites in a time division manner, and an attitude estimation unit estimates an attitude of an object on the basis of phase differences between carrier phases of the positioning signals received by the plurality of antennas. The technology according to the present disclosure can be applied to, for example, a reception device mounted on an artificial satellite.

Smart antenna module for GNSS receivers

Various embodiments of the present technology generally relate to Global Navigation Satellite Systems (GNSS). More specifically, the embodiments of the present technology relate to a smart antenna module resistant to Radio Frequency Interference (RFI) saturation for dual-frequency GNSS receivers. In some embodiments, a dynamically configured antenna module architecture can be for a dual-band (or multi-frequency) GNSS receiver that can adapt to different RFI conditions by performing corresponding working modes. For example, some embodiments of the smart antenna can measure (e.g., using a power detector) the power of an incoming multi-frequency signal to determine when the multifrequency signal is saturated. Then, using control logic the smart antenna can determine which frequency in the multi-frequency signal is usable and isolate (e.g. using radio frequency components) a frequency that is not saturated. A position estimate can then be generated based on the isolated multi-frequency signal.

Integrated interference mitigation for iridium user handsets and GPS receivers

System and method for concurrently protecting Iridium and GPS L1/L2 band received satellite signals against interference signals (e.g., jamming signals) using space-time adaptive processing (STAP). While the GPS signal is protected against jamming using Nulling of the interfering signals, the Iridium signal is protected using Beamforming. A single broadband small controlled reception pattern antenna (sCRPA) array receives both the GPS (L1 and L2) and Iridium signals for the STAP-based antijam solutions outputting filtered Iridium and GPS signals. Use of a common (small) broadband antenna and common front end signal processing of the received signals enables an integrated system for use on size, weight, and power constrained platforms such as drones, unmanned aerial vehicles (UAVs), and helicopters.

OPTIMIZED POSITION INFORMATION ASSISTED BEAMFORMING
20220350033 · 2022-11-03 ·

A global positioning system (GPS) receiver may include an antenna configured to receive GPS signals from GPS satellites, a radio frequency (RF) front end configured to pre-process signals received by the antenna, a demodulator/converter configured to perform demodulation and analog-to-digital conversion of output signals received from the RF front end, a clock configured to provide a consistent clock signal, and a digital signal processor configured to receive the clock signal and make time and code measurements associated with determining a location of the GPS receiver based on the signals received by the antenna. The GPS receiver may be configured to eliminate reflected or indirect signals from the time and code measurements.