The Telecommunications and Data Acquisition Progress Report 42-113

January-March 1993

E. C. Posner
Editor
May 15, 1993

NASA Logo
National Aeronautics and
Space Administration

Jet Propulsion Laboratory
California Institute of Technology
Pasadena, California

Contents

Preface

OSC TASKS
DSN Advanced Systems
TRACKING AND GROUND-BASED NAVIGATION

Improved Linear Ion Trap Physics Package
J. D. Prestage
NASA Code 310-10-62-15-00

The Effect of Clock, Media, and Station Location Errors on Doppler Measurement Accuracy
J. K. Miller
NASA Code 310-l0-63-84-02

Precise Tracking of the Magellan and Pioneer Venus Orbiters by Same-Beam Interferometry - Part II: Orbit Determination Analysis
W. M. Folkner, J. S. Border, S. Nandi, and K. S. Zukor
NASA Code 310-10-63-88-01

COMMUNICATIONS, SPACECRAFT-GROUND

High-Power Ka-Band Amplifier
R. Cormier
NASA Code 310-20-64-22-00

Experimental and Modal Verification of an Integral Equation Solution for a Thin-Walled Dichroic Plate With Cross-Shaped Holes
L. W. Epp and P. H. Stanton
NASA Code 310-20-64-86-02

Gravity Referenced Elevation Encoder Development
R. E. Goddard
NASA Code 310-20-65-67-00

A Note on the Computation of Antenna Blocking Shadows
R. Levy
NASA Code 310-20-65-86-04

Maximum and Minimum Return Losses From a Passive Two-Port Network Terminated With a Mismatched Load
T. Y. Otoshi
NASA Code 310-20-65-86-08

The General Theory of Convolutional Codes
R. J. McEliece and R. P. Stanley
NASA Code 310-30-71-83-04

Uncorrectable Sequences and Telecommand
L. Ekroot, R. J. McEliece, S. Dolinar, and L. Swanson
NASA Code 310-30-71-83-04

DSN SYSTEMS IMPLEMENTATION

Galileo Post-Gaspra Cruise and Earth-2 Encounter
P. E. Beyer and M. M. Andrews
NASA Code 314-40-22-37-01

CAPABILITIES FOR EXISTING PROJECTS

DSN Support of Mars Observer
M. R. Traxler
NASA Code 314-40-22-30-01

CAPABILITIES FOR NEW PROJECTS

Signal-to-Noise Ratio Losses In Full Spectrum Combining of Signals With a Downconverted Subcarrier
Y. Feria and J. Statman
NASA Code 314-30-61-02-10

NETWORK UPGRADE AND SUSTAINING

DSS-14 Subreflector Actuator Dynamics During the Landers Earthquake
R. Levy and D. Strain
NASA Code 314-30-45-10-21

An Analysis of the 70-Meter Antenna Hydrostatic Bearing by Means of Computer Simulation
R. D. Bartos
NASA Code 314-30-42-l0-87

Flight-Ground Advanced Engineering

Acoustic Charge Transport Technology Investigation for Advanced Development Transponder
S. Kayalar
NASA Code 315-91-10-13-12

OSS TASKS
Radio Science

The Flight Performance of the Galileo Orbiter USO
D. D. Morabito, T. P. Krisher, and S. W. Asmar
NASA Codes 314-40-31-30-26 and 889-54-62-01-00

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