Traffic alert and collision avoidance system enhanced surveillance system and method
First Claim
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1. Traffic alert and collision avoidance system (TCAS), comprising:
- first interrogator positioned onboard a first aircraft, the first interrogator sending an interrogation;
second transponder positioned onboard a second aircraft, the second transponder responding to the interrogation request, the response comprising enhanced surveillance data that was asked for in the request.
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Abstract
A traffic alert and collision and avoidance system (TCAS) is disclosed. The TCAS comprises a first transponder and a first interrogator associated with a first aircraft. The first transponder sends an interrogation request. The TCAS also comprises a second transponder associated with a second aircraft. The second transponder responds to the interrogation request. The response comprises enhanced surveillance data that was asked for in the request.
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Citations
20 Claims
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1. Traffic alert and collision avoidance system (TCAS), comprising:
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first interrogator positioned onboard a first aircraft, the first interrogator sending an interrogation; second transponder positioned onboard a second aircraft, the second transponder responding to the interrogation request, the response comprising enhanced surveillance data that was asked for in the request. - View Dependent Claims (2, 3, 4, 5)
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6. A method of providing air traffic information from a first aircraft to a second aircraft, comprising:
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receiving an interrogation request from a first aircraft transponder, the request including a request for enhanced surveillance data; and responding by a second aircraft transponder a message comprising enhanced surveillance data, that was asked for in the request. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A method of integrity checking the position of a second aircraft, comprising:
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interrogating an aircraft transponder onboard the second aircraft including a request for enhanced surveillance data including the position of the second aircraft; receiving a reply to the interrogation request by a first aircraft; calculating the position of the second aircraft based on the message response time and bearing; comparing the calculated position with the received position; and determining the integrity of the received position. - View Dependent Claims (13, 14, 15)
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16. A method of interrogating a traffic alert and collision avoidance system transponder, comprising:
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interrogating an aircraft transponder including a request for enhanced surveillance data; determining based on the enhanced surveillance data received, whether the rate of interrogation should be changed; and changing the rate of interrogation if it is determined that the rate should be changed. - View Dependent Claims (17, 18, 19, 20)
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Specification