The Telecommunications and Data Acquisition Progress Report 42-95

July-September 1988

E. C. Posner

November 15, 1988

National Aeronautics and
Space Administration

Jet Propulsion Laboratory
California Institute of Technology
Pasadena, California



DSN Advanced Systems

Deriving a Geocentric Reference Frame for Satellite Positioning and Navigation
R. P. Malla and S.-C. Wu
NASA Code 310-10-61-84-02

Determination of GPS Orbits to Submeter Accuracy
W. I. Berliger, S. M. Lichten, and E. C. Katsigris
NASA Code 310-10-61-84-04

Two-Way Coherent Doppler Error Due to Solar Corona
P. W. Kinman and S. W. Asmar
NASA Code 310-20-64-50-00


Dynamic Models for Simulation of the 70-M Antenna Axis Servos
R. E. Hill
NASA Code 310-20-65-63-00

A New Algorithm for Modeling Friction in Dynamic Mechanical Systems
R. E. Hill
NASA Code 310-20-65-63-00

Theoretical Comparison of Maser Materials for a 32-GHz Maser Amplifier
J. R. Lyons
NASA Code 310-20-66-09-00

32-GHz Cryogenically Cooled HEMT Low-Noise Amplifiers
J. J. Bautista, G. G. Ortiz, K. H. G. Duh, W. F. Kopp, P. Ho, P. C. Chao, M. Y. Kao, P. M. Smith, and J. M. Ballingall
NASA Code 310-20-66-09-00

Cross-Guide Coupler Modeling and Design
J. Chen
NASA Code 310-20-64-86-02

Modal Analysis Applied to Circular, Rectangular, and Coaxial Waveguides
D. J. Hoppe
NASA Code 310-20-64-86-02

Conceptual Design of a 1-MW CW X-Band Transmitter for Planetary Radar
A. M. Bhanji, D. J. Hoppe, B. L. Conroy, and A. J. Freiley
NASA Code 310-20-64-22-00

VLA Telemetry Performance With Concatenated Coding for Voyager at Neptune
S. J. Dolinar, Jr.
NASA Code 310-30-71-83-02

A Long Constraint Length VLSI Viterbi Decoder for the DSN
J. Statman, G. Zimmerman, F. Pollara, and O. Collins
NASA Code 310-30-71-88-01

Long Decoding Runs for Galileo's Convolutional Codes
C. R. Lahmeyer and K.-M. Cheung
NASA Code 310-30-71-83-02

Performance of Galileo's Concatenated Codes With Nonideal Interleaving
K.-M. Cheung and S. J. Dolinar, Jr.
NASA Code 310-30-71-83-02

The Decoding of Reed-Solomon Codes
R. J. McEliece
NASA Code 310-20-71-83-04

Performance of Efficient Q-Switched Diode-Laser-Pumped Nd:YAG and Ho:YLF Lasers for Space Applications
W. K. Marshall, K. Cowles, and H. Hemmati
NASA Code 310-20-67-63-00

Calculations of Laser Cavity Dumping for Optical Communications
D. L. Robinson and M. D. Rayman
NASA Code 310-20-67-63-00

An Integral Sunshade for Optical Reception Antennas
E. L. Kerr
NASA Code 310-20-67-59-00

Shutters and Slats for the Integral Sunshade of an Optical Reception Antenna
E. L. Kerr and C. W. DeVore
NASA Code 310-20-67-59-00

Effect of Earth Albedo Variation on the Performance of a Spatial Acquisition Subsystem Aboard a Planetary Spacecraft
C.-C. Chen
NASA Code 310-20-67-59-00

A Preliminary Weather Model for Optical Communications Through the Atmosphere
K. S. Shaik
NASA Code 310-20-67-88-03


An Extended Kalman Filter Based Automatic Frequency Control Loop
S. Hinedi
NASA Code 310-30-70-56-00

Transmitter Data Collection Using Ada
B. L. Conroy
NASA Code 310-20-64-22-00

DSN Systems Implementation

DSN 70-Meter Antenna X-Band Gain, Phase, and Pointing Performance, With Particular Application for Voyager 2 Neptune Encounter
D. Slobin and D. A. Bathker
NASA Code 314-30-56-57-35


Pointing a Ground Antenna at a Spinning Spacecraft Using Conscan-Simulation Results
A. Mileant and T. Peng
NASA Code 314-40-41-81-11

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.