A system for detecting threats using an overt threat detector, the system includes a computer-readable memory configured to store computer executable instructions; a processor configured to execute the computer executable instructions, the computer executable instructions comprising receiving historical data regarding vessel patterns in a geographic area; generating, using a computer processor, at least one overt threat model based on the received historical data; receiving tracking data of vessels currently in the geographic area; analyzing, using the computer processor, the tracking data of vessels using the at least one overt threat model; and modifying, using the computer processor, the tracking data of vessels based on the results of the analyzing step; and an output device configured to output the modified tracking data of vessels is disclosed.

A radar signal processing device includes: a shielding length calculating unit (61) which calculates, based on a reception signal received by an antenna that transmits and receives radio waves, a shielding length (L2), which is the horizontal length of a region where a transmission signal transmitted from the antenna is shielded by a shielding object (13) above a reference plane; and a vertical height calculating unit (62) which calculates, based on the shielding length and the positional relationship between the shielding object and the antenna, the height (H2) of the shielding object from the reference plane.

Determining a target's range profiles is an important issue for coastal surveillance radars because it can give us the knowledge about the target, for example, target's type, target's structure and its length along radial direction. Some modern radars nowaday are equipped with the feature of target's range profile extraction, but the results are not accurate due to limitations in processing algorithms. The invention “system and method of determining target's range profiles for coastal surveillance radars” solves the above problem in the direction of proposing a system of technical solutions and associated algorithm improvements.

A smart radar data mining and target location corroboration system has a target incident processing system (TIPS) and target information system (TIS) that provide corroborating radar data in response to target incident data, to assist search and response personnel in responding to high-risk safety or security incidents involving an uncooperative vessel or aircraft. The TIPS rapidly mines large volumes of historical radar track data, accessible through the TIS, to extract corroborating radar data pertinent to the target incident data. The corroborating radar data include trajectories, last known radar position (LKRP) or first known radar position (FKRP) information believed to be associated with the target incident data.

The invention relates to a system for controlling a traffic management at an intersection of at least two traffic routes, wherein the system comprises first radar sensor, which has a first detection region, for detecting road users on the first traffic route, a second radar sensor, which has a second detection region, for detecting road users on the second traffic route, wherein the first detection region and the second detection region overlap in at least one overlapping region, and and an electronic data processing device, which is configured to at least partially combine the sensor data of the first radar sensor and the sensor data of the second radar sensor into combination signals and to control the traffic management system at the intersection at least also as a function of combination signals.

A method for implementing a relocatable Over-The-Horizon-Radar (OTHR) including transmitting mutually orthogonal signals on each of a plurality of antenna elements of a transmitting system, and receiving and decoding the signals at a plurality of receiving systems to synthesize beams from the orthogonal signals. Each receiving system has a plurality of antenna elements fewer in number than the plurality of antenna elements of said transmitting system. The method includes connecting as a network the transmitting system, the plurality of receiving systems, and a network controller.

Techniques are disclosed for systems and methods to provide relatively accurate position data from a plurality of separate position sensors. A system includes a logic device configured to first and second position sensors each coupled to a mobile structure at respective first and second locations. The logic device is configured to receive position data corresponding to a position of the mobile structure from the position sensors, determine weighting factors corresponding to the received position data, and determine a measured position for the mobile structure based, at least in part, on the received position data and the determined weighting factors.

An unmanned, autonomous, self-sustaining and self-repairable floating platform which is positioned at a fixed location within the sea, capable of constantly monitoring, without having to be removed, a specific maritime zone including a sea surface area and the aerial and underwater space pertaining to this sea surface area, the platform comprising telecommunication means adapted to exchange surveillance related information with a Command, Communication and Control center. The platform comprises a deck maintained well above sea surface through a connecting member with an underlying, fully or partially submerged, system of floaters and is equipped with a variety of sensors and surveillance systems such as radar, Li-dar, sonar, electromagnetic, unmanned vehicles (UAVs, UUVs and USVs), active and passive self-protection systems as well as research and rescue equipment. A mast having a substantial height (usually 40-50 m) and equipped with appropriate surveillance devices is mounted and ex-tends vertically upwardly the deck.

Disclosed is a system 1000 for determining a virtual representation of at least part of an environment 800 that is navigable by a ship 700. The system has at least one beacon 101, 102, 201, 202, 301, 302, 401-403 remote from the ship. The or each beacon comprises at least one sensor 411-415 for sensing surroundings information representative of at least part of the environment, a transmitter 420, and a controller 430 connected to the at least one sensor and configured to cause the surroundings information to be transmitted via the transmitter. The system also comprises a control centre 500 remote from the ship. The control centre comprises a receiver 520 configured to receive the surroundings information, and a control unit 530 connected to the receiver and configured to determine a virtual representation of at least part of the environment based on the surroundings information. The virtual representation may comprise a topographical map, such as a LIDAR map.

A support structure includes a mounting pole and a mounting frame supported by the mounting pole. The mounting frame includes a vertical base and a horizontal arm projecting away from the vertical base in a first direction. The support structure further includes a first and second camera mount coupled to the vertical base, and a LIDAR mount and a radar mount coupled to the horizontal arm. An omnidirectional camera is coupled to the first camera mount and extends a first distance away from the mounting frame in a first direction that is perpendicular to the vertical base of the mounting frame. A thermal camera is coupled to the second camera mount and oriented in the first direction. A LIDAR unit is coupled to the LIDAR mount, and a radar unit is coupled to the radar mount.