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Passive bird-strike avoidance systems and methods

An L-band and signal technology, applied in the field of passive bird strike avoidance system and method, capable of solving problems such as the approach and path of encroaching birds

Inactive Publication Date: 2012-08-08
HONEYWELL INT INC
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

these radars observe the approach and path of birds that may violate the airport's approach and departure routes

Method used

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  • Passive bird-strike avoidance systems and methods
  • Passive bird-strike avoidance systems and methods
  • Passive bird-strike avoidance systems and methods

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Embodiment Construction

[0014] The present invention is a passive, receive-only system that uses conventional transmissions from the Traffic Collision Avoidance System (TCAS) and transceiver systems to provide extensive illumination of the entire hemisphere in front of the aircraft without the need for mechanical or electronic antenna scanning. The receiver uses the phase angle-of-arrival method common to TCAS systems to determine the angular position of the energy reflected by the flock. The distance to the flock is determined by timing the flight of the aircraft's own TCAS or Transceiver L-band device pulses using, for example, the blanking signal as a reference. When the received pulse is not from the aircraft's own L-band device, the distance to the detected target can also be determined within a one-second time period by triangulation using two angle-of-arrival measurements.

[0015] as attached figure 1 As shown, an exemplary passive bird strike avoidance system (PBSAS) 20 includes a receiver ...

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Abstract

Systems and methods for providing passive bird-strike avoidance. A passive L-band receiver system (20) is located on an aircraft (18). The system includes a processor (30) and an antenna (34) having an array of four or more elements. The antenna configured to receive L-band signals. The processor receives the L-band signals from the antenna, determines if the received L-band signals indicate a target, determines distance, direction of travel and speed of any determined targets, determines if the target is a flock of birds based on the determined speed and determines if a hazard condition exists based on the distance, direction and speed.

Description

Background technique [0001] Commercial aircraft are often at risk of bird strikes when operating near coastal areas or "bird paths" along bird migration routes. Bird strikes are extremely dangerous and have been known to cause serious damage to aircraft. Pilots are at risk of injury or death when birds strike the plane's head or windshield. [0002] One solution currently in use to avoid bird strikes involves the use of fixed ground-based solid-state pulse compression radars placed in the airport environment. These radars observe the approach and path of birds that may encroach on the airport's approach and departure routes. Airborne options also include active radar systems that could compete with existing weather radars and ILS navigation antennas in the nose of the aircraft. Therefore, fully active radar is not economically or logistically feasible. Contents of the invention [0003] The present invention provides systems and methods for providing passive bird strike ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64D45/00G01S13/933
CPCG01S13/87G01S13/9303G01S7/415G01S13/933
Inventor D·C·瓦肯蒂
Owner HONEYWELL INT INC
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