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Coding in a wide area positioning system (WAPS)

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01S-001/08
  • H04W-064/00
  • H04B-001/709
  • G01S-019/11
  • G01S-019/45
  • G01S-019/48
출원번호 US-0535626 (2012-06-28)
등록번호 US-9119165 (2015-08-25)
발명자 / 주소
  • Krasner, Norman
  • Raghupathy, Arun
출원인 / 주소
  • NextNav, LLC
인용정보 피인용 횟수 : 4  인용 특허 : 137

초록

Embodiments describe determining position by selecting a set of digital pseudorandom sequences. The magnitudes of the cross-correlation between any two sequences of the chosen set are below a specified threshold. A subset of digital pseudorandom sequences are selected from the set such that the magn

대표청구항

1. A method for transmitting position location signals from a plurality of transmitters, comprising: identifying a set of pseudorandom sequences, wherein a maximum magnitude of a cross-correlation function between any two pseudorandom sequences of the set of pseudorandom sequences is below a specifi

이 특허에 인용된 특허 (137)

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  3. Blaha, Jr., Jerome Arthur; De Lorenzo, David S.; Segal, Benjamin Lipeles, Estimating the elevation of a wireless terminal based on temperature and atmospheric pressure.
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