Abstract: A method for acquiring images using a constellation of satellites in non-geosynchronous terrestrial orbit. The satellites include respective devices for inter-satellite communication. An aggregate of work plans intended for various satellites is formed. A ground station transmits the aggregate intended for one satellite. The satellite receiving the aggregate retransmits the aggregate intended for at least one other satellite from the ground station. Each satellite receiving the aggregate from another satellite re-transmits the aggregate intended for at least one other satellite. Each satellite recovers its work plan from the aggregate received.

Abstract: An object of the present invention is to provide an antenna device having a wide beam scan range with reduced loss. The antenna device according to one aspect of the present invention includes: a first phase shifter, a second phase shifter, and a third phase shifter; a first connection part that electrically connects between the first phase shifter and the second phase shifter directly in series; a second connection part that electrically connects between the second phase shifter and the third phase shifter directly in series; and a power feed part that feeds electric power to the first phase shifter to the third phase shifter, wherein the first phase shifter and the second phase shifter, and the second phase shifter and the third phase shifter respectively have characteristic impedance being discontinuous with respect to each other at the first connection part and the second connection part.

Abstract: A sensing system of a vehicle includes a control and a mounting carrier that supports a plurality of sensor units. The mounting carrier is configured to be disposed at the vehicle so that the plurality of sensor units have respective fields of sensing exterior of the vehicle. The mounting carrier includes structure to support the sensor units at an exterior structure of the vehicle so as to provide a desired field of sensing. The mounting carrier includes an electrical connector that is configured to electrically connect to an electrical connector of the vehicle. The sensor units are electrically connected to a circuit element that is electrically connected to the electrical connector of the mounting carrier. The control, responsive to outputs of the circuit element, determines the presence of one or more objects exterior the vehicle and within the field of sensing of at least one of the sensor units.

Abstract: A system for providing a range speed response pattern to a learning system as an image. The system includes a radar sensor and an electronic controller. In one example, the electronic controller is configured to receive a radar signal, obtain a beat signal, apply a fast Fourier transform to the beat signal to generate a transform, apply a power spectral density periodogram to the beat signal to generate an estimate, and filter the transform with the estimate to generate a filtered transform. The electronic controller is further configured to store the filtered transform in a column of a matrix, apply the power spectral density periodogram to each row of the matrix, generate a range speed response pattern from the matrix, generate a signal to control the vehicle's motion based on the range speed response pattern, and control a steering apparatus, an engine, and/or a braking system of the vehicle.

Abstract: A module making it possible to detect a disturbance signal during initial receiving by a receiver of navigation information, the receiver including a plurality of elementary antennas able to receive, in a plurality of arrival directions, electromagnetic signals including navigation information, a forming unit able to form a resultant signal from the electromagnetic signals and a processing unit able to process the resultant signal, the detection module being integrated into the forming unit and able to receive the electromagnetic signals coming from each of the elementary antennas, analyze the signals and detect a disturbance signal when the receiver is started cold in case of detection of a favored arrival direction of some of the electromagnetic signals.

Abstract: A unified system of programming communication. The system encompasses the prior art (television, radio, broadcast hardcopy, computer communications, etc.) and new user specific mass media. Within the unified system, parallel processing computer systems, each having an input (e.g., 77) controlling a plurality of computers (e.g., 205), generate and output user information at receiver stations. Under broadcast control, local computers (73, 205), combine user information selectively into prior art communications to exhibit personalized mass media programming at video monitors (202), speakers (263), printers (221), etc. At intermediate transmission stations (e.g., cable television stations), signals in network broadcasts and from local inputs (74, 77, 97, 98) cause control processors (71) and computers (73) to selectively automate connection and operation of receivers (53), recorder/players (76), computers (73), generators (82), strippers (81), etc.

Abstract: Provided is a code allocating apparatus including an interference signal measurer configured to measure interference signals, an interference signal sharer configured to control radars to share the measured interference signals between the radars, a code allocator configured to dynamically allocate a code generated based on the measured interference signals to each of the radars, and a code applier configured to apply the code to each of the radars.

Abstract: A method and apparatus for calibrating a LiDAR system at a first location with a radar system at a second location. A calibration target is placed at a location and orientation with respect to the LiDAR system and the radar system. Coefficients of a plane of the calibration target are determined in a frame of reference of the LiDAR system. Coordinates of the calibration target are determined in a frame of reference of the radar system. A cost function is composed from a planar equation that includes the determined coefficients and the determined coordinates and a relative pose matrix that transforms the frame of reference of the radar system to the frame of reference of the LiDAR system. The cost function is reduced to estimate the relative pose matrix for calibration of the LiDAR system with the radar system.

Abstract: The present invention relates to a radar device and a frequency interference cancellation method thereof, and arranges a configuration comprising: an antenna unit for transmitting a radar transmission signal to a periphery and receiving a signal reflected from a target; an RF unit for generating the transmission signal, converting frequencies of a transmission signal and a reception signal, and amplifying a reception signal; a signal processing unit for generating a control signal to generate the transmission signal and cancelling frequency interference from a reception signal of the RF unit; and a control unit for generating radar detection information by using an output signal of the signal processing unit, and tracking information by accumulating the radar detection information.

Abstract: A beamforming method includes: initializing data of array elements of an antenna array and calculating a current beam pattern based on the initialized data; calculating a difference value between the current beam pattern and a goal beam pattern, and determining data which makes the difference value minimum respectively for each array element using a numerical method in turn from the first array element to the last array element, with the data of other array elements being held and determined data replacing previous data; and generating a beamforming vector using the determined data and generating signals to be transmitted using the beamforming vector. A beamforming apparatus is also disclosed.

Abstract: The communication device comprising a first weather implementer, a second weather implementer, a first weather dependent shortcut icon modification implementer, a second weather dependent shortcut icon modification implementer, and an audiovisual playback implementer.

Abstract: The system is configured to generate a display comprising a longitude-time graph comprising. The longitude-time graph may include a longitude axis spanning from a lower-longitude limit to an upper-longitude limit, a time axis spanning from a lower-time limit to an upper-time limit and a plurality of pixels corresponding to longitude-time points within the longitude-time graph, each of the plurality of longitude-time points corresponding to a set of identifiers having a time identifier between the lower-time limit and the upper-time limit and having a longitude identifier between the lower-longitude limit and the upper-longitude limit. In response to a user selection of a time identifier and a name identifier, the system can generate a display of at least one of the plurality of photographs.

Abstract: Provided is a device for detecting precipitation conditions. In one aspect, the device includes a Yagi-Uda antenna tuned a resonant frequency and a signal generator coupled to the Yagi-Uda antenna by a transmission line, the signal generator being configured to output an excitation signal to the Yagi-Uda antenna to the Yadi-Uda antenna. The device also includes a processing system coupled to the Yagi-Uda antenna, the processing system being configured to measure the ability of the Yagi-Uda antenna to radiate a signal following excitation of the Yagi-Uda antenna by the excitation signal and, based on the measured ability of the Yagi-Uda antenna, to identify a precipitation or other meteorological condition.

Abstract: Using communication unit positional information acquired using infrastructure communication and moving body positional information detected using millimeter-wave radar, a moving body existing in a blind spot of a radar detection region is recognized, and behavior is predicted from movement information of the moving body, by deleting the moving body information detected by millimeter-wave radar from the communication unit information acquired using infrastructure communication.

Abstract: A method performed in a network node of a cellular network that also includes a wireless device, the wireless device being in a discontinuous reception mode having receiving periods and idle periods. The method involves transmitting a first control signal to the wireless device during a receiving period for the wireless device; determining that a first control signal is likely to have failed to be correctly received by the wireless device; and determining that a second control signal needs to be transmitted to the wireless device, the second control signal corresponding to the first control signal. When the wireless device is in an idle period, the method further involves postponing any transmission of the second control signal until the wireless device is in a receiving period; and transmitting the second control signal to the wireless device when the wireless device is in the receiving period.

Abstract: An apparatus includes a waveguide of an antenna block configured to propagate electromagnetic energy along a propagation direction. The antenna block includes a port located on a bottom surface of the antenna block and an antenna array located on a top surface of the antenna block. The antenna block further includes a set of waveguides in the antenna block configured to couple the antenna array to the port. Additionally, the antenna block includes at least one surface wave radiator, where the surface wave radiator is located on the top surface of the antenna block.

Abstract: An apparatus and method for radar based gesture detection. The apparatus includes a processing element and a transmitter configured to transmit radar signals. The transmitter is coupled to the processing element. The apparatus further includes a plurality of receivers configured to receive radar signal reflections, where the plurality of receivers is coupled to the processing element. The transmitter and plurality of receivers are configured for short range radar and the processing element is configured to detect a hand gesture based on the radar signal reflections received by the plurality of receivers.

Abstract: An antenna including: an array of individually-controllable elementary cells, each cell being capable of transmitting a radio signal by introducing into the signal a controllable phase shift selected from among at least two discrete phase-shift values; on the side of a first surface of the array, first, second, third, and fourth primary sources capable of respectively irradiating first, second, third, and fourth consecutive quadrants of the array; and a processing circuit capable of supplying a first signal representative of the sum of the signals S1, S2, S3, and S4 supplied, respectively, by the first, second, third, and fourth sources, a second output signal representative of difference S1+S2?S3?S4, and a third output signal representative of difference S1?S2?S3+S4.

Abstract: The present invention provides a ground-based augmentation system (GBAS) integrity performance evaluation method based on a pseudorange error distribution model, including: an airborne receiver terminal performing GBAS integrity performance evaluation by acquiring pseudorange error sample data, including the following method steps: a) grouping the pseudorange error sample data; b) building a distribution model having a Gaussian kernel and quadratic Gaussian polynomial tails for each group of pseudorange error samples; c) calculating a weighted sum of the distribution model of each group of pseudorange errors, to obtain an overall pseudorange error distribution model; d) projecting the pseudorange errors to position domain errors; e) calculating a probability that a position domain error is greater than an alarm limit, to obtain an integrity risk probability value; and f) evaluating GBAS integrity performance.

Abstract: A sensor includes a transmit antenna, a receive antenna, circuitry, and a memory. The transmit antenna includes N transmit antenna elements each transmitting a transmit signal. The receive antenna includes M receive antenna elements each receiving N receive signals including reflection signals reflected by an organism. The circuitry extracts a second matrix corresponding to a predetermined frequency range from an N×M first matrix representing propagation characteristics between each transmit antenna element and each receive antenna element calculated from the receive signals. The circuitry estimates the position of the organism by using the second matrix, and calculates a radar cross-section value with respect to the organism, based on the estimated position and the positions of the transmit antenna and the receive antenna.