A radar device includes a transmitter, a receiver and processing circuitry. The transmitter transmits a first pulse signal and a second pulse signal, a pulse width of the second pulse signal being wider than a pulse width of the first pulse signal. The receiver may receive a first reception signal including a reflection signal of the first pulse signal and a second reception signal including a reflection signal of the second pulse signal. The processing circuitry may be configured to compare, in a first section that is at least partly in a distance direction, a signal intensity of the first reception signal with a signal intensity of the second reception signal, and generate a display signal based on a result of the comparison.

A non-transitory computer readable recording medium stores therein a program that causes a computer to execute a process including: executing a process of acquiring a position of a terminal; determining whether there is object data registered in a position in an area corresponding to the acquired position by referring to a storage that stores positions in which multiple sets of object data are registered in association with the sets of object data, respectively; and displaying object data on a display when there is the object data registered in a position in the area, and curbing any one of frequency of executing the process of acquiring the position of the terminal and accuracy of the acquiring when there is no object data registered in a position in the area.

A non-transitory computer readable recording medium stores therein a program that causes a computer to execute a process including: executing a process of acquiring a position of a terminal; determining whether there is object data registered in a position in an area corresponding to the acquired position by referring to a storage that stores positions in which multiple sets of object data are registered in association with the sets of object data, respectively; and displaying object data on a display when there is the object data registered in a position in the area, and curbing any one of frequency of executing the process of acquiring the position of the terminal and accuracy of the acquiring when there is no object data registered in a position in the area.

Described herein are systems and methods that detect an electromagnetic signal in a constant interference environment. In one embodiment, the electromagnetic signal is a light signal. A constant interference detector may detect false signal hits generated by constant interference, such as bright light saturation, from valid signals. The constant interference detector determines if there is constant interference for a time period that is greater than a time period of the valid signal. In one embodiment, if a received signal exceeds a programmable threshold value for a programmable period of time, when compared to previously stored ambient light, a control signal is generated to inform the next higher network layer of a sudden change in ambient light. This control signal can be used to either discard the present return or process the signal in a different way. A constant interference detector may be a component of a LIDAR system.

An image processing device according to an aspect of the embodiment includes a display controller and a determining unit. The display controller generates a synthesized image when viewing a perimeter of a vehicle from a virtual viewpoint based on an image from an image capturing device and causes a display unit to display the synthesized image. The determining unit determines, in a case where a screen other than a virtual viewpoint screen including the synthesized image is displayed on the display unit, whether a switching condition to a notification screen for notifying an occupant of presence of an obstacle is satisfied when the obstacle is detected by a detector. The display controller causes the display unit to display the notification screen obtained by superimposing a predetermined notification image on the virtual viewpoint screen, when the determining unit determines that the switching condition is satisfied.

An image processing device according to an aspect of the embodiment includes a display controller and a determining unit. The display controller generates a synthesized image when viewing a perimeter of a vehicle from a virtual viewpoint based on an image from an image capturing device and causes a display unit to display the synthesized image. The determining unit determines, in a case where a screen other than a virtual viewpoint screen including the synthesized image is displayed on the display unit, whether a switching condition to a notification screen for notifying an occupant of presence of an obstacle is satisfied when the obstacle is detected by a detector. The display controller causes the display unit to display the notification screen obtained by superimposing a predetermined notification image on the virtual viewpoint screen, when the determining unit determines that the switching condition is satisfied.

An AIS information display device comprises an information acquisition component, an icon generator, and a display component. The information acquisition component acquires bearing information, which is information about the bearing of other targets with respect to the position of the host vessel. The icon generator uses an icon-use host vessel symbol S3 and one other target symbol S2 to generate an icon 19 that indicates the relative bearings of the host vessel and another target. The display component displays the icon 19 generated by the icon generator. Consequently, a ship display device can be provided which makes every target easy to understand, even when there are many other targets around the host vessel.

An AIS information display device comprises an information acquisition component, an icon generator, and a display component. The information acquisition component acquires bearing information, which is information about the bearing of other targets with respect to the position of the host vessel. The icon generator uses an icon-use host vessel symbol S3 and one other target symbol S2 to generate an icon 19 that indicates the relative bearings of the host vessel and another target. The display component displays the icon 19 generated by the icon generator. Consequently, a ship display device can be provided which makes every target easy to understand, even when there are many other targets around the host vessel.

An apparatus comprises an array of vertical-cavity surface-emitting lasers. Each of the vertical-cavity surface-emitting lasers is configured to be a source of light. The apparatus also comprises an optical arrangement configured to receive light from a plurality of the vertical-cavity surface-emitting lasers and to output a plurality of light beams.

A radar apparatus is provided, which includes an approaching velocity calculating module configured to calculate an approaching velocity of a target object from which a reflection wave caused by an electromagnetic wave is obtained, based on a change in one of phase and frequency of the electromagnetic wave transmitted and received by a radar antenna, the approaching velocity being a velocity component in a transmission direction of the electromagnetic wave, a tracking determining module configured to determine whether to track the target object based on the approaching velocity of the target object, a tracking module configured to automatically track the target object determined to be tracked by the tracking determining module, and a display controlling module configured to display the tracking result of the tracking module along with a radar image.