Abstract: An information display device includes a preset course information receiver, a symbol display processor, a change mode execution processor, and a preset course information transmitter. The preset course information receiver receives preset course information from an automatic steering device. The symbol display processor displays a symbol representing a preset course on a display screen to correspond to position information of a mobile body based on the preset course information. The change mode execution processor executes a change mode for changing the preset course information based on a fact that the symbol has been designated with a manipulation component. The preset course information transmitter transmits the preset course information changed during the change mode to the automatic steering device.

Abstract: This disclosure provides a signal processing device, which includes a reception signal acquiring module for acquiring reception signals received by a radar antenna, an identifying module for identifying a kind of each reception signal, an extracting module for extracting the reception signal for each kind, and a kind-base signal processing module for performing individual signal processing for each kind of the extracted reception signal.

Abstract: A mobile body display device includes an acquisition component, a memory component, an input component, a length adjuster, and a display controller. The acquisition component acquires position and speed of a mobile body. The memory component stores a plurality of display ranges, a number of range rings for each display range, and a reference speed. The input component receives input designating one of the display ranges. The length adjuster adjusts length of a speed vector on a screen such that length of a speed vector indicating the reference speed on the screen is the same as a spacing of the range rings on the screen based on the display range. The display controller displays the mobile body on the screen according to the position, and displays adjacent to the mobile body a speed vector for which heading and length have been set based on the length and the speed.

Abstract: This disclosure provides an antenna device that includes a horn having a deeper-side portion and an opening-side portion, a feeder line, and an antenna element that is supplied with electric power from the feeder line to generate an electric wave, and radiates the electric wave from the horn. The feeder line is arranged parallel to the radiating direction of the electric wave.

Abstract: This disclosure provides a detection device, which includes an image data generation module for generating image data based on echo signals, and a target object detection module for determining an existence of a target object based on a level of the echo signal at each location of the image data for every azimuth. The target object detection module determines a continuity of the echo signals in a distance direction and an azimuth direction for every target object, and outputs an end location for each target object based on a determination result at each location, including a plurality of locations adjacent to a location determined as being a non-target object location.

Abstract: This disclosure provides a method of setting a threshold according to a level of an echo signal containing an unused component. The echo signal is generated by transmitting and receiving a radio wave with an antenna while the antenna revolves. The method includes acquiring levels of the echo signals at every predetermined distance interval and updating a threshold set for an observing position based on the level of the echo signal at the observing position, the threshold set for the observing position, and a threshold set for a position closer to the antenna than the observing position by the predetermined distance on the same sweep.

Abstract: This disclosure provides a radar device, which detects an object of interest from image data produced based on an input signal containing echo signals caused by transmitted signals reflecting on objects. The radar device includes a memory module for storing template image data produced based on one or more characteristics of the echo signals of the object of interest, a pattern matching module for performing pattern matching of the image data and the template image data, an identifying module for identifying an area within the image data containing the object of interest corresponding to the template image data, when the object of interest is detected from the image data as a result of the pattern matching.

Abstract: There is provided an automatic steering device with which a heading can be stably controlled even under powerful disturbance. The control computer 8 outputs an ordered rudder angle calculated based on the drift angle and the turning angular velocity. The angular velocity inversion timing acquisition component 21 acquires a timing at which the turning angular velocity changes from a direction in which a divergence of the drift angle from zero increases to a direction in which the divergence decreases. The steering stop command component 22 orders a steering stop based on the above-mentioned timing. The steering gear controller 10 controls a steering gear such that it changes a rudder angle of the steering gear based on the ordered rudder angle, and such that it does not change the rudder angle while a command of the steering stop has been received.

Abstract: This disclosure provides a range side lobe removal device, which includes a pulse compressor for acquiring a reception signal from a radar antenna and generating a pulse-compressed signal by performing a pulse compression of the reception signal, a pseudorange side lobe generator for generating a pseudo signal of range side lobes of the pulse-compressed signal based on the reception signal, and a signal remover for removing a component corresponding to the pseudo signal from the pulse-compressed signal.

Abstract: A marine wireless device includes a calling unit, a response unit, a communication establishment unit, a call processor, a condition memory unit, and a recorded data processor. The calling unit sends call information requesting the start of communication. The response unit sends response information with respect to the call information sent by a communication partner. The communication establishment unit receives the response information from the communication partner and establishes communication with the communication partner. The call processor executes a voice call with the communication partner with whom the communication establishment unit has established communication. The call memory unit stores as recorded data a voice call executed by the call processor. The condition memory unit stores specific data processing conditions related to recorded data. The recorded data processor varies the processing related to recorded data according to the data processing conditions.

Abstract: To provide an art that can improve a performance of a GNSS receiver. A GNSS receiver 100 includes a receiver 1, a navigation message acquiring unit 3, a navigation message processor 5, and a calculator 6. The receiver 1 receives signals from satellites. The navigation message acquiring unit 3 acquires predetermined information in navigation messages contained in the signals received by the receiver. The navigation message processor 5 outputs either one of the same kind of information in the plural different kinds of navigation messages, which is acquired by the navigation message acquiring unit 3. The calculator 6 performs a calculation based on the information outputted from the navigation message processor 5.

Abstract: This disclosure provides a signal processing device, which includes a reception signal acquiring module for acquiring reception signals received by a radar antenna, an identifying module for identifying a kind of each reception signal, an extracting module for extracting the reception signal for each kind, and a kind-base signal processing module for performing individual signal processing for each kind of the extracted reception signal.

Abstract: This disclosure provides a method of detecting a target object by receiving reflection echoes of detection signals transmitted sequentially from a revolving antenna, and by detecting a target object based on detection data resulted from sampling reception signals at a predetermined time interval. The method comprises temporarily storing the detection data within a predetermined geographical range, and identifying the type of the reflection echo based on a change between values of the detection data at physically-close locations within the predetermined geographical range.

Abstract: It is an object of the present invention to provide a radar device and a velocity calculation method with which velocity can be calculated more accurately. A radar device 1 comprises a transmitter 23, a first velocity calculator 31a, a second velocity calculator 31b, a first velocity corrector 33a, and a second velocity corrector 33b. The transmitter 23 transmits pulse signals at two or more different pulse repetition frequencies. The first velocity calculator 31a calculates a first Doppler velocity based on a first received signal. The second velocity calculator 31b calculates a second Doppler velocity based on a second received signal. The first velocity corrector 33a calculates a first corrected Doppler velocity by folding correction of the first Doppler velocity. The second velocity corrector 33b calculates a second corrected Doppler velocity by folding correction of the second Doppler velocity.

Abstract: There are provided a tracking processing device and a tracking processing method with which time lag from the receipt of a command to track a target until the movement state of this target is estimated more accurately can be reduced, the calculation burden can be reduced, and the memory capacity can be reduced. A tracking processing device 3 has an echo detector 9 and a tracking processor 11. The tracking processor 11 includes a characteristic information memory 41. The echo detector 9 detects information on tracking representative points P for one or more targets. The characteristic information memory 41 stores the information on the tracking representative points P at a plurality of time-points. The tracking processor 11 tracks the tracking target selected from among a number of targets. The tracking processor 11 uses information stored in a characteristic information memory 41 to estimate an estimated speed vector V5(n) for this tracking target at the start of tracking of the tracking target.

Abstract: A target object tracking device is provided. The device includes a memory for storing association information in which a selecting order of target objects is associated with symbols indicating the target objects, respectively, a starting selection accepting module for accepting a selection of the target objects to start tracking thereof, a symbol reading module for reading the symbols for the selected target objects corresponding to the selecting order of the target objects based on the association information, a tracking module for tracking the selected target objects, a symbol displaying module for displaying the symbols read by the symbol reading module, at positions where the target objects tracked by the tracking module are displayed, and a symbol changing module for changing, according to an operation of a user, the association information and displaying the symbols at the positions where the target objects are displayed, based on the changed association information.

Abstract: To realize a GNSS receiver that can perform further optimal correlation processing on a positioning signal phase-modulated by a CBOC signal. A correlation processing module 32 performs correlation processing between a baseband signal and a BOC(1, 1) replica code to output a BOC(1, 1) correlation data, and also performs correlation processing between the baseband signal and a BOC(6, 1) replica code to output a BOC(6, 1) correlation data. A synthesis module 33 uses a BOC(1, 1) synthesizing ratio coefficient G11 and a BOC(6, 1) synthesizing ratio coefficient G61 to synthesize the BOC(1, 1) correlation data with the BOC(6, 1) correlation data, and outputs the synthesized correlation data to a calculation module 30. The calculation module 30 detects a reception environment based on the synthesized correlation data, sets a BOC(1, 1) synthesizing ratio coefficient and a BOC(6, 1) synthesizing ratio coefficient based on the reception environment, and supplies them to the synthesis module 33.

Abstract: The disclosed device generates a plurality of pixel data in an XY coordinate system. The pixel data includes first pixel data generated on a first sweep line, according to a distance from a transmitting source, based on an echo of a detection signal from the source toward a first direction, and second pixel data generated on a second sweep line, according to a distance from the source, based on an echo of a detection signal from the source toward a second direction different from the first direction. The device includes a module for converting the first and second pixel data into data in the XY coordinate system, a module for generating pixel data of an interpolation target pixel located between a first pixel as an observing pixel on an interpolation axis parallel to X-axis or Y-axis and a second pixel as a corresponding pixel on the same interpolation axis, based on the pixel data on the first and second sweep lines.

Abstract: A radar device is disclosed, which includes an antenna for transmitting an electromagnetic wave and receiving an echo signal from a target object while rotating in a horizontal plane, a display module for displaying the target object so as to correspond the echo signal to a position of the target object with respect to the antenna, a speed calculation module for calculating a relative velocity of the antenna and the target object, and a risk level detection module for detecting a risk level of the target object based on the relative velocity of the target object calculated by the speed calculation module. The speed calculation module calculates the relative velocity of the target object based on a change in phases of at least two of the echo signals received at a different time. The display module controls a display mode of the target object based on the risk level.

Abstract: This disclosure provides an image processing device, which includes a relative trail image memory for storing a relative trail data group indicating relative changes in position of a target object detected by echo signals obtained corresponding to detection signals transmitted while changing a transmitting azimuth direction, with respect to a transmitting position from which the detection signals are transmitted, and an approaching target object determination processing module for determining whether the target object detected with the detection signals is an approaching target object that approaches the transmitting position based on relative trail data existing on the same sweep line among the relative trail data group stored in the relative trail image memory.