The Telecommunications and Data Acquisition Progress Report 42-94

April-June 1988

E. C. Posner
Editor


August 15, 1988

NASA Logo
National Aeronautics and
Space Administration

Jet Propulsion Laboratory
California Institute of Technology
Pasadena, California


Contents

Preface

OSO TASKS
DSN Advanced Systems
TRACKING AND GROUND-BASED NAVIGATION

Deep Space Tracking in Local Reference Frames
R. N. Treuhaft
NASA Code 310-10-60-86-02

Precise Orbit Determination for NASA's Earth Observing System Using GPS
B. G. Williams
NASA Code 310-10-61-84-04

PSA: A Program to Streamline Orbit Determination for Launch Support Operations
V. N. Legerton and N. A. Mottinger
NASA Code 310-10-63-53-00

Spain 31-GHz Observations of Sky Brightness Temperatures
B. L. Gary
NASA Code 310-10-60-84-00

Australia 31-GHz Brightness Temperature Exceedance Statistics
B. L. Gary
NASA Code 310-10-60-84-00

Gravitational Wave Searches Using the DSN
S. J. Nelson and J. W. Armstrong
NASA Code 310-10-62-25-00

Evaluation of the Characteristics of a Field Emission Cathode for Use in a Mercury Ion Trap Frequency Standard
J. M. Christman
NASA Code 310-10-62-15-00

COMMUNICATIONS, SPACECRAFT-GROUND

Simultaneous S- and X-Band Uplink-Downlink Performance at DSS 13
A. J. Freiley
NASA Code 310-20-64-86-02

X/X/Ka-Band Prime Focus Feed Antenna for the Mars Observer Beacon Spacecraft
P. Stanton, H. Reilly, and M. Esquivel
NASA Code 310-20-64-86-02

Dual Passband Dichroic Plate for X-Band
T. Y. Otoshi and M. M. Franco
NASA Code 310-20-64-88-02

Antenna Pointing Compensation Based on Precision Optical Measurement Techniques
L. L. Schumacher and H. C. Vivian
NASA Code 310-20-65-67-00

A 32-GHz Reflected-Wave Maser Amplifier With Wide Instantaneous Bandwidth
J. Shell and D. Neff
NASA Code 310-20-66-87-02

An 8.4-GHz Cryogenically Cooled HEMT Amplifier for DSS 13
L. Tanida
NASA Code 310-20-66-09-00

Design of an Optical PPM Communication Link in the Presence of Component Tolerances
C.-C. Chen
NASA Code 310-20-67-59-00

Atmospheric Propagation Effects Relevant to Optical Communications
K. S. Shaik
NASA Code 310-20-67-88-03

Node Synchronization of Viterbi Decoders Using State Metrics
U. Cheng
NASA Code 310-30-71-83-02

A Software Simulation Study of the Long Constraint Length VLSI Viterbi Decoder
S. Arnold and F. Pollara
NASA Code 310-30-71-88-01

STATION CONTROL AND SYSTEM TECHNOLOGY

An Automatic Frequency Control Loop Using Overlapping DFTs
S. Aguirre
NASA Code 310-30-70-84-02

Heat Exchanger Expert System Logic
R. Cormier
NASA Code 310-10-62-25-00

Storage and Computationally Efficient Permutations of Factorized Covariance and Square-Root Information Arrays
R. J. Muellerschoen
NASA Code 310-10-61-81-10

DSN Systems Implementation
CAPABILITIES FOR EXISTING PROJECTS

Phasing the Antennas of the Very Large Array for Reception of Telemetry from Voyager 2 at Neptune Encounter
J. S. Ulvestad
NASA Code 314-40-66-09-12

CAPABILITIES FOR NEW PROJECTS

Phobos Lander Coding System: Software and Analysis
K.-M. Cheung and F. Pollara
NASA Code 314-30-64-01-03

NETWORK UPGRADE AND SUSTAINING

Relative Planetary Radar Sensitivities: Arecibo and Goldstone
N. A. Renzetti, T. W. Thompson, and M. A. Slade
NASA Code 314-40-31-30-14

DSN 64-Meter Antenna L-Band (1668 MHz) Microwave System Performance Overview
J. Withington
NASA Code 314-40-56-44-14

DSN Operations
MISSION INTERFACE AND SUPPORT

Summary of DSN Reimbursable Launch Support
N. A. Fanelli and M. E. Wyatt
NASA Code 314-40-22-34-01

Referees


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.


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