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Briefs: Information Technology
Subpixel Map Registration and Estimation of Uncertainty

A method of determining the location and the uncertainty in the location of a mobile robot to subpixel resolution on a map grid has been devised. The method is applicable to a robot equipped...

Briefs: Information Technology
A Method for Designing Low-Pass FIR Digital Filters

A class of finite-impulse-response (FIR) digital filters has been developed to perform certain frequency-limiting, decimation, and differentiation (with respect to time) functions on a time...

Briefs: Information Technology
Preconditioning the Helmholtz Equation for a 2-D Duct

A preconditioning technique has been developed for numerical solution of the Helmholtz equation as applied to the steady-state propagation of sound in a semi-infinite, two-dimensional (2-D)...

Briefs: Information Technology
Analytic Technique for Separation of Cochannel FM Signals

A digital processing technique for separating two cochannel frequency-modulation (FM) signals involves a partial algebraic solution that gives the phases of the two signals to within one of...

Briefs: Information Technology
Parameterizing Shape Perturbations for Multidisciplinary Design Optimization

A recently developed method of parameterizing complex shapes that one seeks to optimize differs from prior such methods in two major respects: (1) instead of entirely...

Briefs: Information Technology
Developmental Software for Exploiting Hyperspectral Imagery

A unique state-of-the-art process for exploiting hyperspectral satellite imagery, based on evolutionary computing methods, has been developed and a proof-of-concept demonstration has...

Briefs: Information Technology
Algorithm for Rapid Acquisition of a PPM Optical Signal

An algorithm for rapid acquisition of a pulse-position-modulation (PPM) optical data signal implements a pattern-matching technique for synchronization of receiver timing with the temporal...

Briefs: Information Technology
Expert System To Develop Job Standards

The Job Standards Development System is a user-friendly expert system that (1) helps users select an appropriate work measurement methodology to develop job standards (or the less formal job time estimates)...

Briefs: Information Technology
Further Developments in Web Interactive Training

Three innovative computer programs for training and testing personnel at Kennedy Space Center have been developed under the aegis of the Web Interactive Training (WIT) project. The WIT project...

Briefs: Information Technology
Post-Processing Satellite Image Data in Secondary Schools

Never before have secondary schools been able to post-process raw satellite data, and now they can do it in real time. This is credited to advances in technology that have recently made the...

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Would you use "Printed Wi-Fi?"

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