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Navigation system using re-transmitted GPS 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G81S-005/02
  • H04B-007/185
출원번호 US-0127039 (1993-09-24)
발명자 / 주소
  • Aguado Morton M. (New York NY)
출원인 / 주소
  • Northrop Grumman Corporation (Los Angeles CA 02)
인용정보 피인용 횟수 : 60  인용 특허 : 0

초록 ▼

A system for measuring the relative positions of first and second units includes a re-transmitting apparatus at the first unit and a receiver at the second unit capable of making simultaneous real-time comparisons of phase and frequency information contained in first signals received directly from t

대표청구항 ▼

In a method of determining positions of a first unit relative to a second unit of the type which includes the step of receiving signals from a plurality of satellites deployed at spaced intervals within one or more geostationary orbits, the improvement comprising the steps of retransmitting the sign

이 특허를 인용한 특허 (60)

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