For the improvement of accuracy and better faulttolerant performance, a global position system (GPS)/vision navigation (VISNAV) integrated relative navigation and attitude determination approach is presented for ultra-close spacecraft formation flying. Onboard GPS and VISNAV system are adopted and a federal Kalman filter architecture is used for the total navigation system design. Simulation re...

Tripulse is a novel orientation/attitude estimation system that is designed to accurately estimate the orientation of a satellite borne phased array relative to one or more earth stations. This system has an accuracy potential that is signi cantly better than conventional Earth-Moon-Sun attitude sensors. Tripulse has conceptual similarities to amplitude comparison monopulse systems used in trac...

This paper designs a novel fuzzy competition and attitude based bidding strategy (FCA-Bid), in which the final best bid is calculated on the basis of the attitude of the bidders and the competition for the goods in the market. The estimation of attitude is based on the bidding item’s attribute assessment, which adapts the fuzzy sets technique to handle uncertainty of the bidding process as well...

This paper proposes an estimation method of relative position and attitude between two haptic devices. In multiple haptic devices environment, it is important to know the relative position and attitude between the devices. In the proposed method, these properties can be easily calculated by using the several identical end-points of both devices. We conducted preliminary experiments to estimate ...

In this paper, an optimal batch estimator and filter based on the Minimum Model Error (MME) approach is developed for three-axis stabilized spacecraft. Three different MME algorithms are developed. The first algorithm estimates the attitude of a spacecraft using rate measurements. The second algorithm estimates the attitude without using rate measurements. The absence of rate data may be a resu...

A colored-noise Kalman filter is designed to diminish the error effects caused by sensors placed on vibrating structures. This paper deals with sensors that are used to estimate position, attitude or both. Here we focus on a vision-based system, which uses a set of lightemitting diode beacons with a focal plane detector to determine line-of-sight measurements. Estimation of both position and at...