The Telecommunications and Mission Operations Progress Report 42-144

October-December 2000

Joseph H. Yuen
Editor in Chief


February 15, 2001

NASA Logo
National Aeronautics and
Space Administration

Jet Propulsion Laboratory
California Institute of Technology
Pasadena, California


Contents

Preface

Iterative Turbo Decoder Analysis Based on Density Evolution
D. Divsalar, S. Dolinar, and F. Pollara

A Generalized Pre-Processor for Block and Convolutionally Coded Signals
V. Vilnrotter, C. Lee, and N. Lay

Hardware Implementation of a Lossless Image Compression Algorithm Using a Field Programmable Gate Array
M. Klimesh, V. Stanton, and D. Watola

Avalanche Photodiode Arrays for Optical Communications Receivers
M. Srinivasan and V. Vilnrotter

Achieving and Maintaining Deep Space 1 Spacecraft High-Gain Antenna Pointing Control by Data Monitoring and Immediate Corrective Commanding
J. Taylor and P. Ko

Single-Aperture Multiple-Carrier Uplink Using a 20 Kilowatt X-Band Transmitter
T. Cornish

Water Vapor Radiometer-Global Positioning System Comparison Measurements and Calibration of the 20 to 32 Gigahertz Tropospheric Water Vapor Absorption Model
S. J. Keihm, Y. Bar-Sever, and J. Liljegren

Beacon-Based Exception Analysis for Multimissions: Technology for Autonomous Self-Analysis
R. Mackey, M. James, H. Park, and M. Zak

The Gray-Box Approach to Sensor Data Analysis
M. Zak and H. Park

Should the Master Equatorial Be a Slave?
W. Gawronski, H. G. Ahlstrom, Jr., and A. M. Bernardo

Author Index, 2000


The research described in this publication was carried out by the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. Reference herein to any specific commercial product, service, process, or service by trade name, trademark, manufacturer, or otherwise, does not constitute or imply its endorsement by the United States Government or the Jet Propulsion Laboratory, California Institute of Technology.


Home