Invention Grant
- Patent Title: System and method for observing a satellite using a satellite in retrograde orbit
- Patent Title (中): 使用卫星在逆行轨道观测卫星的系统和方法
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Application No.: US11542494Application Date: 2006-10-03
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Publication No.: US08090312B2Publication Date: 2012-01-03
- Inventor: Ian S. Robinson
- Applicant: Ian S. Robinson
- Applicant Address: US MA Waltham
- Assignee: Raytheon Company
- Current Assignee: Raytheon Company
- Current Assignee Address: US MA Waltham
- Agency: Christie, Parker & Hale, LLP
- Main IPC: H04B7/185
- IPC: H04B7/185

Abstract:
A satellite and an arrangement for placing the satellite in a retrograde orbit, i.e. inclined at approximately 180° to the equator. Multiple satellites may be used and the orbits thereof may be circular or elliptical. The invention is well-suited for an illustrative satellite inspection application. In this embodiment, the system includes one or more satellites; means disposed on each satellite for receiving electromagnetic energy from objects (e.g. satellites) within a field-of-view thereof; and an arrangement for placing the inspection satellites in a retrograde orbit. The satellites may be equally spaced in a single orbit or disposed in equally spaced orbits. The satellites may include a variety of instruments including radar, infrared, visible, etc. In a radar implementation, the satellite may include a bistatic or (with a transmitter) monostatic radar system. In the bistatic case, the signal may be transmitted from a ground-based or space based platform.
Public/Granted literature
- US20080081556A1 System and method for observing a satellite using a satellite in retrograde orbit Public/Granted day:2008-04-03
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