Absolute Localization in GPS-denied Environment for Autonomous Unmanned Ground and Micro-air Vehicle Systems
Navy SBIR FY2012.1


Sol No.: Navy SBIR FY2012.1
Topic No.: N121-101
Topic Title: Absolute Localization in GPS-denied Environment for Autonomous Unmanned Ground and Micro-air Vehicle Systems
Proposal No.: N121-101-0336
Firm: Sensible Machines Inc
100 Boundary Street
Pittsburgh, Pennsylvania 15207
Contact: Stephan Roth
Phone: (412) 398-2694
Web Site: www.sensiblemachines.com
Abstract: This proposal seeks to demonstrate the feasibility of a compact sensor/computing suite to produce a global navigation solution in the absence of GPS in a package weighing less than 60 grams. The significance of such a development is that it will enable operation beyond line of sight of small/micro UAVs both under canopy and for shipboard use. Our innovation is in the use of lightweight DSPs to perform visual odometry (VO). Our navigation solution will integrate VO with inertial sensors and visual loop closure. The same device will also be able to measure obstacle proximity. Phase I activities will involve specialists in navigation, visual odometry and loop closure. Work will be performed at SMI and at Carnegie Mellon University. The team will leverage a current ONR project to map riverine environments with a low-flying rotorcraft. In the base Phase I program we will collect data in representative environments and evaluate navigation with existing software. We will end with a software and hardware design. In the Phase I option we will implement and evaluate the design with a 100 gram prototype. The size of the worldwide markets is estimated at $100 million. SMI plans to capture 10% of this market by the 5th year.
Benefits: A compact solution for global navigation without requirement of GPS will enable various air and ground vehicles both for military and civilian applications. On the military side the obvious ones are surveillance and monitoring of suspicious inside buildings, compounds, caves, etc.; covert enemy tracking under dense foliage; and an overall increase in soldier situational awareness in urban, subterranean, or forest-like battlefields. On the civilian side applications include autonomous mining in deep and strip mines, search and rescue in forests or semi-collapsed buildings, environmental monitoring under dense canopies and autonomous navigation in specialty crops where the canopy is high enough to obstruct GPS signals.

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