Tracking array antenna system
US5594460A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 9, 1995 |
| Grant date | Jan 14, 1997 |
| Priority date | — |
| Expiry date | Nov 9, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/26
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A tracking array antenna system is provided. When a signal from the target is received normally, control mode of an AZ axis and an electronic XEL axis is changed over according to whether or not a moving platform is inclined about the XEL axis for detecting inclination of the moving platform. When the moving platform is not inclined, beam-switch (BSW) about the electronic XEL axis is performed, and the beam-switch tracking (BST) about the AZ axis using the result with an angular rate feedback (ARFB) is performed. When the moving platform is inclined, zero rate control (ZRC) about the AZ axis and BST about the electronic XEL axis are performed. In this way, tracking and stabilization are performed without not only the gimbal-lock but also the use of a gyrocompass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.