The navigation of future interplanetary spacecraft will require an increasing degree autonomy to enhance space system performance. A real-time trajectory determination is paramount importance reduce the risks operations devoted exploration celestial bodies in solar and dependence loading on ground systems. We present a technique for sequential estimation orbits through processing line-of-sight ...

Previous explanations for stereo capture were mainly based on the low-level perceptual processing of binocular stereopsis which usually shows that one pair of retinal images corresponds to only one 3-D perceptual configuration. Stereo capture, however, may encounter multiple perceptual configurations due to the matching ambiguity of wallpaper elements that may not be solved merely by bottom-up ...

Here we investigated the time course underlying differential processing of local and global shape information during the perception of complex three-dimensional (3D) objects. Observers made shape matching judgments about pairs of sequentially presented multi-part novel objects. Event-related potentials (ERPs) were used to measure perceptual sensitivity to 3D shape differences in terms of local ...

This study investigated whether verbs in figurative language activate different types of associations than do verbs in literal language. In a sentence-priming experiment, we compared sentences featuring verbs in idiomatic phrases with control sentences in which the same verbs were meant literally. Participants made lexical decisions about nouns that were associated with either the verb’s litera...

ÐA computer configuration design problem where the objective is to configure a parallel processor to do processing in a cost effective manner is examined. The application envisioned is a specialized on-line service that rents time on its machine. The combinatorial optimization problem involved is examined analytically and a heuristic algorithm for its solution is provided. Lessons learned in th...

Open Distributed Processing (ODP) is an ongoing standardization activity by both ISO and CCITT providing an object oriented reference model (RM ODP) for open distributed systems. Certain abstraction levels called viewpoints are introduced by the RM ODP. The formal description technique LOTOS is used to define formal models for the computation and engineering viewpoint by sublanguages LOT OScomp...

Many tasks in computational linguistics can be regarded as configuration problems. In this paper, we introduce the notion of lexicalised multi-dimensional configuration problems (lmcps). This class of problems both has a wide range of linguistic applications, and can be solved in a straightforward way using state-of-the-art constraint programming technology. The paper falls into two main parts:...

In this paper, we correctly detect and identify a chessboard and the configuration of its pieces through the application of image processing. While more technically challenging, the use of image processing to detect and identify a chessboard and the configuration of its pieces avoids the need for a digital chess set. Furthermore, image-based detection of chess pieces is a vital step in building...

A Doppler filter bank (DFB) is the heart of pulsed Doppler radar and gives clutter filtering and coherent integration. With these capabilities, it provides the improvement of detection probability as well as velocity discrimination, which can detect small targets in clutter environment. This paper implements a DFB with parallel processing configuration using multiple digital signal processors (...

Embedded systems often must adhere to strict size, weight, and power (SWAP) constraints and yet provide tremendous computational throughput. Increasing the difficulty of this challenge, there is a trend to utilize commercial-off-the-shelf (COTS) components in the design of such systems to reduce both total cost and time to market. Employment of COTS components also promotes standardization and ...