Class / Patent application number | Description | Number of patent applications / Date published |
342157000 | With frequency or phase steering | 6 |
20090303108 | Angular Resolution Radar Sensor - A radar sensor having multiple antenna elements for transmitting and receiving radar signals, an associated transmitting and receiving element and an evaluation device for determining the azimuth angle of located objects on the basis of a relationship between the signals received from different antenna elements, wherein the transmitting and receiving element is designed to supply to the antenna elements transmission signals in parallel, the frequencies of which are offset with respect to one another, and the evaluation device is designed to distinguish between signals that were transmitted by different antenna elements on the basis of the frequency offset. | 12-10-2009 |
20100109939 | RADAR DEVICE - In a radar device including a transmitting unit for transmitting a transmission signal having plural modulation sections, a receiving unit for receiving a reflection signal obtained through reflection of the transmission signal from a target by an array antenna having plural channels, a mixing unit for mixing the transmission signal with reception signals of the plural channels to obtain beat signals of the plural channels, a frequency analyzing unit for frequency-analyzing the beat signals of the plural channels, and a direction calculating unit for calculating the direction to the target on the basis of frequency analysis results of the plural channels, the direction calculating unit adds correlation matrixes generated from peak frequency spectra of the plural modulation sections to obtain an summed correlation matrix, and calculating the direction to the target on the basis of the summed correlation matrix. | 05-06-2010 |
20100225528 | ANTENNA DEVICE AND RADAR APPARATUS - An antenna device includes subarray antennas including antenna elements, feeding lines and feeding interfaces. At least one of the feeding lines includes a phase shifter which shifts phases of the signals feeding to corresponding antenna elements. The feeding lines feed signals to the antenna elements. Each feeding interface is connected to each of subarray antennas. The subarray antennas are arranged parallel to each other with an interval on a plane to be symmetrical about a central axis. The interval is less or equal than a free-space wavelength. The central axis is along with the center of two adjacent subarray antennas arranged at middle of the subarray antennas when the number of the subarray antennas is even. Moreover, the central axis is along with one subarray antenna arranged at the middle of the subarray antennas when the number of the subarray antennas is odd. | 09-09-2010 |
20120313812 | Scanning Polarized RF Reference Sources For Angular Orientation Measurement For Munitions and the Like - A method for determining an angular orientation of a sensor relative to a source. The method including: amplitude modulating at least two synchronized polarized Radio Frequency (RF) carrier signals with a predetermined relationship between their amplitude modulation of their electric field components and their polarization states to provide a scanning polarized RF reference source with a desired scanning range, pattern and frequency; detecting the scanning polarized RF reference source at the sensor; and using peak detection or pattern matching analysis on a signal detected at the sensor to determine the angular orientation of the sensor relative to scanning polarized RF reference source. | 12-13-2012 |
20160178729 | DETECTION OF STEALTH VEHICLES USING VHF RADAR | 06-23-2016 |
20160377713 | METHOD FOR ESTIMATING REFLECTED WAVE ARRIVAL DIRECTION, AND PROGRAM - A method of estimating a reflected wave arrival direction using a radar apparatus includes obtaining a first, reflected signal by performing transmission and/or reception of radio waves using a first directional distribution pattern of sensitivity, obtaining a number of first targets by estimating a number of targets in a reflected wave based on the first reflected signal, obtaining a second reflected signal by performing transmission and/or reception of radio waves using a second directional distribution pattern of sensitivity, obtaining a number of second targets by estimating a number of targets in the reflected wave based on the second reflected signal, obtaining a third reflected signal by performing transmission and/or reception of radio waves using a third directional distribution pattern of sensitivity, obtaining a number of third targets by estimating a number of targets in the reflected wave based on the third reflected signal, and estimating the number of targets and the direction of presence of the targets using the numbers of the first, second and third targets and the first, second and third directional distribution patterns of sensitivity. | 12-29-2016 |