Title:
GROUND-BASED SYSTEM AND METHOD FOR EXTENDING DETECTION OF EXCESSIVE DELAY GRADIENTS USING DUAL PROCESSING
Document Type and Number:
Japanese Patent JP2015203695
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a processing module for monitoring a horizontal delay gradient in satellite signals.SOLUTION: A processing module 100 includes a dual processing satellite differencing module 110, a double differencing module 120, and a gradient estimator module 130. The dual processing satellite differencing module is operable to: receive carrier phase measurements for at least two satellites from at least two reference receivers; implement a first processing mode to normalize first satellite differences between +λ/2 and -λ/2; implement a second processing mode configured to normalize second satellite differences between 0 and λ; and select, for further processing, either of data indicative of the first satellite differences processed according to the first processing mode, and data indicative of the second satellite differences processed according to the second processing mode. The gradient estimator module estimates magnitude of the horizontal delay gradient.
Inventors:
DOUGLAS WEED
RANDY J REUTER
RANDY J REUTER
Application Number:
JP2015021052A
Publication Date:
November 16, 2015
Filing Date:
February 05, 2015
Export Citation:
Assignee:
HONEYWELL INT INC
International Classes:
G01S19/20; G01S19/14
Domestic Patent References:
| JP2011185919A | 2011-09-22 | |||
| JP2012042371A | 2012-03-01 |
Foreign References:
| US20130044026A1 | 2013-02-21 |
Other References:
RANDY REUTER ほか: ""Ionosphere Gradient Detection for Cat III GBAS"", ＰＲＯＣＥＥＤＩＮＧＳ ＯＦ ＴＨＥ ２５ＴＨ ＩＮＴＥＲＮＡＴＩＯＮＡＬ ＴＥＣＨＮＩＣＡＬ ＭＥ, JPN6018042861, September 2012 (2012-09-01), pages 2175 - 2183, XP056008514, ISSN: 0003910733
Attorney, Agent or Firm:
Shinjiro Ono
Yasushi Kobayashi
Shigeo Takeuchi
Osamu Yamamoto
Shogo Nakamura
Yasushi Kobayashi
Shigeo Takeuchi
Osamu Yamamoto
Shogo Nakamura