Title:
【発明の名称】多チャネルGPS受信機によりGPS衛星からの信号を探索し捕捉する方法および多チャネルGPS受信機
Document Type and Number:
Japanese Patent JP2892941
Kind Code:
B2
Abstract:
An embodiment of the present invention includes a GPS receiver capable of concurrently tracking up to eight GPS satellites. The GPS receiver comprises computer-implemented methods for parallel search, split search and precomputation. The parallel search method causes the apparent Doppler frequency spectrum to be sectioned into several segments and a first GPS satellite signal is searched for in parallel in each of the segments. When the first GPS fix is not found after a predetermined time has expired, a split search is begun.
Inventors:
HOORU DABURYU MATSUKUBAANII
RIN UEEBAA
RIN UEEBAA
Application Number:
JP16965594A
Publication Date:
May 17, 1999
Filing Date:
July 21, 1994
Export Citation:
Assignee:
TORIMUBURU NABIGEESHON LTD
International Classes:
G01S1/00; G01S19/23; G01S19/28; G01S19/29; (IPC1-7): G01S5/14
Domestic Patent References:
| JP3156395A | ||||
| JP5157826A | ||||
| JP3295483A |
Attorney, Agent or Firm:
Akira Asamura (3 outside)