Hybrid Guidance System for Relative Navigation
Small Business Information
6767 Old Madison Pike, Suite 410, Huntsville, AL, 35806
AbstractFuture NASA architectures and missions will involve many distributed platforms that must work together. This in turn requires guidance, navigation and control (GN&C) technology such as systems that determine spacecraft relative range and attitude. The proposed Hybrid Guidance System (HGS) will be such a system, providing increased relative navigation accuracy and robustness while reducing mass, volume, and power consumption by a factor of 2 to 4. The HGS's key innovation is integration of three proven and developed sensor technologies (laser-based retro-image pattern matching, laser range-finding, and correlation) into a low-power package. We will develop non-linear navigation estimation algorithms to fuse the sensor outputs together as well as to integrate the system output with other on-board navigation systems. The state estimate generation using three different techniques will increase the system's robustness through the ability to reject faulty measurements from one component of the system. Phase I of the SBIR will verify feasibility of the HGS design and the navigation algorithms and will culminate in a realistic mission simulation of vehicles using the HGS as part of an integrated GN&C system. The results of this simulation will serve as an excellent springboard to Phase II HGS prototype hardware and embedded software development.
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