Patent application number | Description | Published |
20110050481 | SIGNAL PROCESSING DEVICE, RADAR DEVICE, VEHICLE CONTROL SYSTEM, SIGNAL PROCESSING METHOD, AND COMPUTER-READABLE MEDIUM - A signal processing device performs object detection processing in which peak signals each representing a differential frequency between a transmitted signal in which a frequency thereof changes in a predetermined cycle and a received signal are derived in a first period where the frequency of the transmitted signal rises and a second period where the frequency of the transmitted signal falls, and the peak signals in the first period are paired with the peak signals in the second period to detect object information related to the peak signals. A range setting unit sets a frequency range in each of the first period and the second period on the basis of a frequency of an integer multiple of the peak signal related to the object information which has been detected in previous object detection processing. A signal setting unit sets a peak signal as a specific peak signal in a case where the peak signal is within the frequency range in each of the first period and the second period. A paring unit pairs the specific peak signal in the first period and the specific peak signal in the second period. | 03-03-2011 |
20110205102 | RADAR DEVICE, OBJECT DETECTION SYSTEM, AND OBJECT DETECTION METHOD - A vehicle mounted radar device operable to scan a transmission wave to detect a detection point representing a position of an object disposed around the vehicle on the basis of a reflected wave of the transmission wave from the object. The radar device includes a reading unit, a continuity determination unit, a setting unit, anti an object determination unit that are configured to prevent the radar device from erroneously determining different pieces of object information as a single object. | 08-25-2011 |
20120200450 | RADAR DEVICE - A radar device ( | 08-09-2012 |
20130222176 | RADAR APPARATUS - A signal processor is configured to: derive, using a first process, at least one of a distance and a relative speed included in the object data set; and derive, using a second process different from the first process, at least one of the distance and the relative speed included in the object data set when the distance included in the object data set is below a predetermined distance. | 08-29-2013 |
20140028487 | RADAR APPARATUS, VEHICLE CONTROL SYSTEM, AND SIGNAL PROCESSING METHOD - There is provided a radar apparatus. A setting unit is configured to set a first range including at least a reference target. A deriving unit is configured to derive a representative position of targets included in the first range on the basis of position information of the targets included in the first range. An acquiring unit is configured to acquire vehicle information indicating that the vehicle is running in a curve-shaped lane or a road shape in front of the vehicle is a curve shape. When the acquiring unit acquires the vehicle information, the setting unit sets a second range wider than the first range and the deriving unit derives a representative position of targets included in the second range on the basis of position information of the targets included in the second range. | 01-30-2014 |
20140159946 | RADAR APPARATUS AND SIGNAL PROCESSING METHOD - There is provided a radar apparatus configured to extract peak signals which are obtained from a difference frequency between a transmission signal and a reception signal, and to derive information of the target on the basis of the extracted peak signals. A prediction unit predicts this time peak signal based on a peak signal obtained in previous time. An extraction unit extracts this time peak signal corresponding to the predicted peak signal from peak signals existing within a predetermined frequency range. The extraction unit extends the frequency range when this time peak signal corresponding to the predicted peak signal does not exist within the predetermined frequency range. | 06-12-2014 |
20140159948 | RADAR APPARATUS AND SIGNAL PROCESSING METHOD - There is provided a radar apparatus. A derivation unit derives target information which is information relating to a target detected on the basis of a transmission signal of which a frequency changes with a predetermined cycle and a reception signal corresponding to a reflected wave coming from an object at which a transmission wave corresponding to the transmission signal is reflected. A determination unit determines reliability of the target information. A decision unit decides whether the detected target is true or false, based on the target information. The decision unit changes a method of deciding whether the target is true or false in accordance with a determination result of the reliability by the determination unit. | 06-12-2014 |
20140292559 | RADAR APPARATUS AND SIGNAL PROCESSING METHOD - There is provided a radar apparatus capable of emitting a transmission wave relating to a transmitting signal which is frequency-modulated, and receiving a reflection wave coming from a target at which the transmission wave is reflected as a receiving signal, to derive at least position information of the target based on the receiving signal. A deriving unit derives a fluctuation value of a signal level relating to the receiving signal for a stationary target among the targets. A calculating unit calculates a fluctuation integrated value integrated by the fluctuation value. A judging unit judges the stationary target as a target other than a control subject if the fluctuation integrated value is below a predetermined threshold. | 10-02-2014 |