Smart Classroom Designs v. 0.1

Funded by a grant from the Institute of Museum and Library Services (United States federal government), this document is the first version of a portion of the project report for the Smart Classroom project completed in December 2022. This document outlines materials, costs, and potential considerations for developing and executing versions of the smart classroom developed through this grant. Focusing on technical considerations, it compliments other documents in the grant report that focus on pedagogy and conceptual design

ALTERNATE PRESENTATION OF FOURIER TRANSFORM DEVELOPMENT FROM FOURIER SERIES.

An alternate presentation of the development of the Fourier transform from the complex exponential Fourier series is presented. It uses spectral concepts to aid the mathematical development and a redefined spectral form for the spectral information obtained with the Fourier series. It has been used a number of times in the classroom and has been found to aid the students\u27 understanding of the Fourier transform and the spectra of an aperiodic signal

Simple Generation Of One-Parameter Pseudoterrain Surfaces

A simple method for generating digital terrain surfaces as a function of only the terrain standard deviation is presented. This is accomplished by fitting a postulated autocorrelation model to actual terrain data. Observed relations between model parameters are used to obtain a one-parameter model. Copyright © 1979 by The Institute of Electrical and Electronics Engineers. Inc

ESTIMATION OF OCEAN WAVE WAVENUMBER AND PROPAGATION DIRECTION FROM LIMITED SYNTHETIC APERTURE RADAR DATA.

A method for estimating wavenumber and propagation direction for the dominant wave component in an ocean wave field from a few scans of synthetic aperture radar data is described and analyzed. The use of just a few radar scans rather than a complete image reduces data storage requirements significantly. The analysis shown uses actual synthetic aperture radar data and provides parameter tradeoffs and statistical performance results. While reasonable estimates of wavenumber and propagation direction are achieved in some cases, the estimates are not sufficiently consistent to be satisfactory over a wide range of cases. The primary problem is one of low signal-to-noise ratio of the radar scan data

An Improved Single Flight Technique For Radar Stereo

An improved technique for obtaining stereo radar image pairs is described. The technique uses a unique combination of two different radar beam pattern characteristics. The resulting stereo radar images are illuminated from very nearly the same aircraft position which results in radar shadow and back-scatter characteristics which are very similar and in improved image registration possibilities. The reduction in illumination angle and aircraft position differences is shown to be nearly an order of magnitude or more when compared with a previously proposed single flight technique which used two vertical fan beam patterns at different azimuth angles. As a related sidelight it is shown that this previous technique requires the two fan beam patterns to generate parallax on the images and thus can not be implemented with synthetic arrays squinted at two different squint angles. Copyright © 1973 by The Institute of Electrical and Electronics Engineers, Inc

The Effects of Stress on Prospective Memory

The purpose of the study is to use an immersive virtual reality (VR) experience to create fear to examine the effects of induced acute stress on an individual’s prospective memory, which deals with remembering to do something in the future. Past research exploring the impact of acute psychosocial stress has shown that higher levels of stress improves performance of prospective memory tasks1. Other studies examining the effects of acute stress on prospective memory have required participants placing their hands in ice water2, and placed participants in a face-to-face simulated job interview3 to induce stress. Other research on acute stress and prospective memory appears to be at odds with the Yerkes- Dodson Law, which suggests an inverted “U” pattern with respect to anxiety/stress/arousal and performance

Probability Of Anomaly Expressions For Random Waveform Registration

Registration by integral-square error correlation of one-dimensional Discrete Time waveforms which are treated as random processes with specified autocorrelation functions is considered. An important design parameter for this class of problems is the probability of anomaly (a false dip in the correlation function) because it gives an indication of system immunity to gross registration errors. Explicit expressions for this parameter are not possible, so bounds and approximations must be derived. Two upper bounds and an approximation for the probability of anomaly are derived here. The use of these expressions is illustrated by an example. The relative utility of these performance indicators is shown for the example by comparison with actual values of the probability of anomaly obtained by computer simulation. Copyright © 1977 by The Institute of Electrical and Electronics Engineers, Inc

Performance Comparison Of Techniques For Obtaining Stereo Radar Images

The performance of three stereo radar techniques is compared with respect to both theoretical performance and performance in the presence of errors. The three techniques are: an improved single flight technique, a previously proposed single flight technique, and a two flight technique. Theoretical data for comparison of image parameters affecting performance have been generated with computer simulations of the imaging geometries for the techniques. The comparison shows that the improved technique will have images with greater similarity resulting in improved stereo viewability and measurability. Computer simulations have also been used to generate sensitivities of computed terrain point coordinates to system errors. These sensitivities are shown, and overall error comparisons are made for assumed error values. These comparisons show that the improved single flight technique has the best error performance of the three techniques for the assumed reasonable set of system errors. This technique is followed by the previously proposed single flight technique and then the two flight technique. Copyright © 1974 by The Institute of Electrical and Electronics Engineers, Inc

Tilt-Table Alignment For Inertial-Platform Maintenance Without A Surveyed Site

A method for aligning the rotary tilt table for an inertial-platform maintenance facility without surveying the site is analyzed and evaluated. The method utilizes multiple measurements of the tilt-table azimuth alignment error with different inertial platforms to determine a best estimate of the alignment error. Error analysis indicates that useful facility performance can be obtained with only a small number of measurements. The tilt-table alignment accuracy can be improved as more measurements of the alignment error are made during normal facility operation. © 1973, IEEE. All rights reserved

Conceptual Logistics as a Form of Critical Pedagogy

Still carrying on today, traditional approaches to learning in higher education are centered on a procedural transfer of teachers’ knowledge to their students. In order to improve old and new educational practices, a critical examination of the dominant components of the knowledge transfer process is necessary. Using the model of education advocated by Paulo Freire and others, Critical Pedagogy, the authors critique textbooks, a cornerstone of college classrooms. Their design and common use in classrooms are discussed to examine the important role textbooks play in constraining student learning. Using the liberating learning environment as a template, 34 years and 12 editions of a dominant Communication Studies textbook, Human Communication: The Basic Course, are interrogated to identify how authors, publishers, and faculty are misusing textbooks and the negative impact this has on learning. To address these issues, the authors propose necessary changes through a framework of liberating pedagogy employing Conceptual Logistics and powerful models of knowledge transfer.