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Method and apparatus for accelerating code correlation searches in initial acquisition and doppler and code phase in re- 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04B-007/185
  • G01S-005/02
출원번호 US-0045582 (1993-04-09)
발명자 / 주소
  • Niles Michael P. (Menlo Park CA)
출원인 / 주소
  • Trimble Navigation Limited (Sunnyvale CA 02)
인용정보 피인용 횟수 : 168  인용 특허 : 0

초록

An embodiment of the present invention is a GPS receiver comprising a GPS downconverter, a fast acquisition unit, a GPS digital signal processor (DSP), a static random access memory (SRAM) and a temperature compensated crystal oscillator (TCXO). The fast acquisition unit samples intermediate frequen

대표청구항

A method of increasing the speed of correlation code searches through pseudo-random number (PRN) codes transmitted by global positioning system (GPS) satellites on carrier signals, the method comprising the steps of: sampling a first signal including said PRN codes transmitted from said GPS satellit

이 특허를 인용한 특허 (168)

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