Surveillance system for terrestrial navigational and airport landing systems
First Claim
1. Surveillance system for terrestrial navigational and landing systems, in which the navigational signals being transmitted for aeroplanes (Av) or other airborne objects by the navigational and airport landing systems are received and evaluated by a ground based receiving and control facility, the signals being disrupted by a mobile transmitter (MT):
- the receiving and control facility being equipped with a plurality of receiving stations (HF S1, HF S2, HF S3), these receiving stations operate in the frequency range of the navigational signals, the receiving stations are arranged geographically distributed within the transmitting range of the navigational or airport landing system, the signals recorded by the additional receiving stations are forwarded to a central evaluating unit (CU), characterized in that the signals transmitted by the navigational and airport landing system being disrupted by a mobile transmitter (MT), those signals are also received by the receiving stations (HF S1, HF S2, HF 33) to detect the signals from the mobile transmitter (MT).
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Accused Products
Abstract
The invention deals with a surveillance system for terrestrial navigational and landing systems, in which the navigational signals being transmitted for aeroplanes or other airborne objects by the navigational and airport landing systems are received and evaluated by a ground-based receiving and control facility. In this system: the receiving and control facility is equipped with a plurality of additional receiving stations; these additional receiving stations operate in the frequency range of the navigational signals; the additional receiving stations are arranged geographically distributed within the transmitting range of the navigational or airport landing system; the signals recorded by the additional receiving stations are forwarded to a central evaluating unit.
34 Citations
5 Claims
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1. Surveillance system for terrestrial navigational and landing systems, in which the navigational signals being transmitted for aeroplanes (Av) or other airborne objects by the navigational and airport landing systems are received and evaluated by a ground based receiving and control facility, the signals being disrupted by a mobile transmitter (MT):
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the receiving and control facility being equipped with a plurality of receiving stations (HF S1, HF S2, HF S3), these receiving stations operate in the frequency range of the navigational signals, the receiving stations are arranged geographically distributed within the transmitting range of the navigational or airport landing system, the signals recorded by the additional receiving stations are forwarded to a central evaluating unit (CU), characterized in that the signals transmitted by the navigational and airport landing system being disrupted by a mobile transmitter (MT), those signals are also received by the receiving stations (HF S1, HF S2, HF 33) to detect the signals from the mobile transmitter (MT). - View Dependent Claims (2, 3, 4, 5)
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Specification
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- Resources
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Current AssigneeAirsys Navigation Systems GmbH
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Original AssigneeAirsys Navigation Systems GmbH
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InventorsFranke, Erich, Kleiber, Herbert
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Primary Examiner(s)Tarcza, Thomas H.
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Assistant Examiner(s)ANDREA, BRIAN K
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Application NumberUS09/890,974Time in Patent Office440 DaysField of Search342/29, 342/32, 342/33, 342/35, 342/36US Class Current342/36CPC Class CodesG01S 13/913 for landing purposesG08G 5/0013 with a ground stationG08G 5/025 Navigation or guidance aids...
