Bi-static radar processing for ADS-B sensors
First Claim
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1. A process for determining a position of a non-Automatic Dependent Surveillance Broadcast (non-ADSB) equipped aircraft comprises:
- receiving, in a bi-static receiving system, a first group of signals from a first ADSB equipped aircraft;
receiving, in the bi-static receiving system, a second group of signals from a first non-ADSB equipped aircraft; and
processing the first and second group of signals in the bi-static receiving system using a bi-static radar processing technique by determining an azimuth position of an interrogator antenna using the first group of signals and determining a position of the non-ADSB equipped aircraft using the second group of signals.
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Abstract
A system and technique to derive a position of a non-ADSB equipped aircraft using ADS-B information provided from an ADSB equipped aircraft and bi-static radar processing techniques.
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Citations
15 Claims
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1. A process for determining a position of a non-Automatic Dependent Surveillance Broadcast (non-ADSB) equipped aircraft comprises:
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receiving, in a bi-static receiving system, a first group of signals from a first ADSB equipped aircraft; receiving, in the bi-static receiving system, a second group of signals from a first non-ADSB equipped aircraft; and processing the first and second group of signals in the bi-static receiving system using a bi-static radar processing technique by determining an azimuth position of an interrogator antenna using the first group of signals and determining a position of the non-ADSB equipped aircraft using the second group of signals. - View Dependent Claims (2, 3, 4)
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5. A system to derive a position of a non-ADSB equipped aircraft, the system comprising:
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(a) an interrogator comprising; an interrogator antenna; and an interrogator receiver; and (b) a bi-static receiving system comprising; an antenna configured to receive Mode A/C/S signals and Mode ADS-B signals; an interrogator processor configured to process Mode A/C/S signals; an ADS-B processor configured to process ADS-B signals; an azimuth determination processor coupled to receive signals from said ADS-B processor and to determine an azimuth position of the interrogator antenna; and a position determination processor coupled to receive signals from said azimuth determination processor and said interrogator processor and to derive a position of the non-ADSB equipped aircraft. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
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13. A method to derive a position of a non-ADSB equipped aircraft comprising:
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determining, in a bi-static receiving system, an azimuth position of an interrogator antenna as a function of time using one or more ADSB signals from an ADSB equipped aircraft; and deriving a position of the non-ADSB equipped aircraft using the azimuth position of the interrogator antenna and one or more transponder signals from the non-ADSB equipped aircraft. - View Dependent Claims (14, 15)
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Specification