专利名称：SPOOFING DETECTION SYSTEM FOR A
SATELLITE POSITIONING SYSTEM
发明人：HARTMAN, Randoph, G.申请号：EP96923306.3申请日：19960612公开号：EP0904551B1公开日：20000503
摘要：A pair of antennae (230a, 230b) in combination with a GPS signal receiver systemis employed for detecting the reception of satellite information signals from a spoofingsignal transmitter as opposed to those satellite information signals transmitted aboardeach of the satellite vehicles which form a satellite positioning system. An indication ofthe pointing angle (α) or (β) between the line of the antennae and the actual transmittertransmitting the satellite information signals is detected. The pointing angle and/oralternatively the range difference derived from the outputs of respective receiversystems (240a, 240b) may be observed by monitoring the behavior of the pseudo randomcode associated with the carrier of the satellite information signal, or the carier itself. Inturn, pseudo range measurements, pseudo range rate measurements, carrier phasemeasurements, and/or Doppler count measurement associated with the two antennaemay be used to obtain the desired discriminant, which distinguishes between genuinesatellite signals, and those re-radiated via the terrestrial antenna of the spoofing signaltransmitter.
申请人：HONEYWELL INC
地址：US
国籍：US
代理机构：Herzbach, Dieter, Dipl.-Ing.
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