Title:
【発明の名称】方位角測定の装置と方法
Document Type and Number:
Japanese Patent JP2889796
Kind Code:
B2
Abstract:
An embodiment of the present invention is a system for time multiplexing a carrier signal received by two or more GPS antennas through a single hardware path, using a single receiver's oscillator in that hardware path as a reference to compare the phase from each antenna. One of the antennas is designated as a reference antenna and a carrier signal received by it is used to phase lock in numerically controlled oscillator. The same carrier signal received by the other antennas is periodically compared in phase to the output of the numerically controlled oscillator. Each comparison results in a phase angle measurement for the respective antennas compared to the master antenna.
Inventors:
MAIKURU PII DENTEINGAA
KURAAKU EMAASON KOOEN
KURAAKU EMAASON KOOEN
Application Number:
JP24298893A
Publication Date:
May 10, 1999
Filing Date:
September 29, 1993
Export Citation:
Assignee:
TORIMUBURU NABIGEESHON LTD
International Classes:
G01S1/00; G01S3/48; G01S19/04; G01S19/10; G01S19/44; (IPC1-7): G01S5/02; G01S3/48; G01S5/14
Domestic Patent References:
| JP2140680A | ||||
| JP5242595B2 | ||||
| JP5242596B2 |
Attorney, Agent or Firm:
Akira Asamura (3 outside)