Inertial navigation.
Strapdown and gimballed inertial navigation systems history, engineering progress and current developments
SEARCH · Engineering Papers
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Strapdown and gimballed inertial navigation systems history, engineering progress and current developments
Navigation and guidance analysis of Mars probe launched from manned flyby spacecraft for 1975- 1976
Man-machine design for Apollo spacecraft navigation, guidance and control systems
Navigation satellites for information during movements of manned/unmanned terrestrial vehicles containing position determination, communications and weather relay service and scientific sensors
Updated inertial navigation of continuously powered space vehicle during lunar landing mission, utilizing altimeter and Doppler radar
Detecting water hazards is a significant challenge to unmanned ground vehicle autonomous off-road navigation. This paper focuses on detecting the presence of water during the daytime using color cameras. A multi-cue approach is taken. Evidence of the presence of water is generated from color, texture, and the detection of reflections in stereo range data. A rule base for fusing water cues was developed by evaluating detection results from an extensive archive of data collection imagery containing water. This software has been implemented into a run-time passive perception subsystem and tested thus far under Linux on a Pentium based processor.
This paper will describe the search methods to be used using the radio and optical observations, and will provide a description of the methods and performance of the autonomous onboard rendezvous navigation system.
In the future, navigation and communication in Earth-Moon space and on the Moon will differ from past practice due to evolving technology and new requirements. Here we describe likely requirements, discuss options for meeting them, and advocate steps that can be taken now to begin building the navcom systems needed in coming years for exploring and using the moon.
The Mars Network provides proximity based communications and navigation services to support Mars exploration. The network will be comprised of science orbiters with a MN relay transceiver, and potentially, dedicated telecommunication orbiters. The common MN transceiver, called Electra, is currently in deployment, and is being designed for both communications and radiometric tracking.
Obstacle detection is one of the main components of the control system of autonomous vehicles. In the case of indoor/urban navigation, obstacles are typically defined as surface points that are higher than the ground plane. This characterization, however, cannot be used in cross-country and unstructured environments, where the notion of ground plane is often not meaningful.
The 2001 Mars Odyssey Mission has returned an Orbiter to Mars to map the planet and search for water. This paper will present an overview of the Navigation performance, with a comparison of the pre-launch requirements and expected performance to the in-flight experience.
This paper presents a technique for learning to assess terrain traversability for outdoor mobile robot navigation using human-embedded logic and real-time perception of terrain features extracted from image data.
The focus of this paper is the interaction of the aided-navigation system with the rest of the flight system. Results from simulated EDL scenarios will be presented.
This paper describes the navigation strategy and results for the rendezvous and orbit phases of the NEAR mission.
This paper presents a novel technique for real-time measurement of terrain characteristics and incorporation of this information into the navigation strategy of an autonomous mobile robot.
The first mission of NASA's New Millenium Program, Deep Space 1, has, as one of its principal demonstration technologies, the first autonomous optical navigation system to be used in deep space.
The first mission of NASA's New Millennium Program, Deep Space 1, has, as one of its principal demonstration-technologies, the first autonomous optical navigation system to be used in deep space.
Precision clocks and frequency standards are widely used in communications and navigations systems.