Invention Grant
- Patent Title: Process for improving the continuity in the case of a two-frequency navigation satellite system
- Patent Title (中): 提高双频导航卫星系统连续性的过程
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Application No.: US12470230Application Date: 2009-05-21
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Publication No.: US08094068B2Publication Date: 2012-01-10
- Inventor: Hans L. Trautenberg
- Applicant: Hans L. Trautenberg
- Applicant Address: DE Taufkrichen
- Assignee: Astrium GmbH
- Current Assignee: Astrium GmbH
- Current Assignee Address: DE Taufkrichen
- Agency: Crowell & Moring LLP
- Priority: DE102008025064 20080526
- Main IPC: G01S19/20
- IPC: G01S19/20 ; G01S19/08
Abstract:
A process for improving continuity in a two-frequency navigation satellite system includes steps of i) observing the ionosphere by measurements in the two or more frequency bands; and ii) transmitting an alert message which informs user systems of a change of the ionosphere when at least one measurement indicates a change of the ionosphere that deviates from one or more predefined conditions.
Public/Granted literature
- US20090289842A1 Process for Improving the Continuity in the Case of a Two-Frequency Navigation Satellite System Public/Granted day:2009-11-26
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