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2 results about "Automatic dependent surveillance-broadcast" patented technology
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Automatic dependent surveillance—broadcast (ADS–B) is a surveillance technology in which an aircraft determines its position via satellite navigation and periodically broadcasts it, enabling it to be tracked. The information can be received by air traffic control ground stations as a replacement for secondary surveillance radar, as no interrogation signal is needed from the ground. It can also be received by other aircraft to provide situational awareness and allow self-separation.
A Method for Detecting Abnormal Behavior of Ship Platforms Based on ADS-B Big Data
This invention discloses an abnormal behavior detection method for ships based on an ADS-B big data platform, specifically relating to the field of ship navigation safety monitoring technology. The method involves acquiring automatic correlation surveillance broadcast data of ships in a target sea area, constructing a ship trajectory evolution matrix, and generating a ship micro-disturbance motion feature tensor. It also involves constructing a ship neighborhood interaction topology network and calculating the trajectory disturbance propagation weights between nodes to form an abnormal propagation probability matrix. Furthermore, it establishes a coupling response relationship between the local trajectory disturbance energy sequence and the neighborhood interaction intensity through temporal folding mapping, generating an abnormal behavior evolution prediction curve and calculating an abnormal energy aggregation index. Combined with the abnormal propagation probability matrix, it generates a risk distribution map of abnormal ship behavior, extracts implicit behavior indicators, and dynamically matches them with preset abnormal behavior patterns. This invention can effectively identify micro-scale abnormal navigation behavior in complex sea environments, improving the accuracy of abnormal ship behavior detection and early warning capabilities.
Owner:ANHUI DIWAN TECH CO LTD
Cooperative and non-cooperative surface management
A system and method for aircraft surface navigation is disclosed. The method may include receiving W-band data from a W-band sensor configured to detect objects including non-cooperative aircraft. The method may also include receiving Automatic Dependent Surveillance-Broadcast (ADS-B) data from an ADS-B receiver configured to receive ADS-B signals from cooperative aircraft. Additionally, the method may involve identifying navigation information based on the W-band data and the ADS-B data, the navigation information comprising cooperative traffic and non-cooperative traffic, and displaying the navigation information via a display.
Owner:ROCKWELL COLLINS INC