Digital Commons Network^™

The General Purpose Interface Bus, Ernest D. Baker

Retrospective Theses and Dissertations

The General Purpose Interface Bus, as defined by the IEEE Standard, deals with systems that require digital data to be transferred between a group of instruments. An overview of this standard is presented which summarizes the interface's capabilities, functions and versatility by explaining the basic interface concepts. In addition, a GPIB testing application and a GPIB related design example are presented and investigated.

Spartan Daily, May 17, 1979, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily (School of Journalism and Mass Communications)

Volume 72, Issue 69

Erts Direct Digital Printing & Multitemporal Data Registration, Robert F. Burke, William Marshall

LARS Symposia

The objective of this study was to determine if the quality of the ERTS imagery could be improved by averaging successive passes over the same physical area.

The U.S.G.S. designated five passes over two areas of study: Washington, D. C. and Phoenix, Ariz., with the requirement that optimized imagery be derived directly from the EROS Data Center Bulk CCT's. The Mead system goes directly from the Bulk CCT's to hard-copy print-out, thereby by-passing any intermediate electronic, electro-optical, or photographic processes which may lead to image deterioration.

Evaluation Of All-Digital Precision Registration Methods For Landsat Mss Data, S. Rifman, B. Peavey, R. Caron, K. Simon

LARS Symposia

A major factor contributing to the utility of LANDSAT data is the repetitive coverage of each spot on the earth's surface within the sensor's field of view at least once every 18 days. This repeat coverage makes possible: studies of crop growth: monitoring urban development and land use: and predicting water runoff from melting ice and snow, just to name a few examples. Of central importance to investigators performing these studies is the requirement that imagery and/or image data on computer compatible tapes (CCT's) register to a fraction of a pixel. This paper describes the application of all digital processing …

Environmental Monitoring From Spacecraft Data, R. H. Rogers, C. L. Wilson, L. E. Reed, N. J. Shah, R. Akeley, T. G. Mara, V. Elliott Smith

LARS Symposia

Section 208 of the Federal Water Pollution Control Act Amendments of 1972 provided the opportunity and funding to fight water pollution through the use of regional water quality planning. A common requirement of the 208 program is to develop a capability of predicting water quality in the rivers and lakes resulting from existing and potential land-use policies. To achieve this capability, the Ohio-Kentucky-Indiana (OKI) Regional Council of Governments is developing a deterministic model capable of predicting sediment and nutrient flow into the waterways. An essential input to OKI's model is an accurate map of land use within the watersheds. This …

Requirements For A Remote Access Hybrid Computer Terminal Utilizing Common Grade Telephone Lines, William Myers Hester

Retrospective Theses and Dissertations

No abstract provided.

Interactive Computer Graphics - An Advanced Computer Technology, George V. Yuscavage

Space Congress® Proceedings

Computers have been an invaluable aid as man has grappled with advancing technology. As the computer tool has become more sophisticated, man's ability to master new technologies and applications has been proportionately accelerated. One of the very promising sophistications today is graphics. A research project to:

1. Determine capability and

2. Promote utilization

has been underway at Boeing Huntsville and is the subject of this paper. Reference 1 is devoted to some of the "mechanics" of the program and its operation. This complimentary paper will document the graphics program as an entity, its relationship to the parent organization's function, and …