The Telecommunications and Data Acquisition Progress Report 42-128

October-December 1996

Joseph H. Yuen
Editor-in-Chief


February 15, 1997


National Aeronautics and
Space Administration

Jet Propulsion Laboratory
California Institute of Technology
Pasadena, California


Contents

Preface

List of Changes

OSC TASKS
DSN Advanced Systems
TRACKING AND GROUND-BASED NAVIGATION

DSN Station Locations and Uncertainties
W. M. Folkner
NASA Code 314-30-11-50-03

COMMUNICATIONS, SPACECRAFT-GROUND

Results From Phase-1 and Phase-2 GOLD Experiments
K. Wilson, M. Jeganathan, J. R. Lesh, J. James, and G. Xu
NASA Code 315-91-70-10-01

Reduction of ETS-VI Laser Communication Equipment Optical-Downlink Telemetry Collected During GOLD
M. Toyoshima, K. Araki, Y. Arimoto, M. Toyoda, M. Jeganathan, K. Wilson, and J. R. Lesh
NASA Code 314-30-12-00-01

Characterization of the Avalanche Photo Diode Detector Used for Optical Communications Experiments With the Japanese ETS-VI
C. Pasqualino
NASA Code 314-30-12-00-01

Ephemeris Generation for ETS-VI and Its Effects on Pointing Strategies Adopted for Daytime Acquisition and Tracking
W. M. Owen, Jr., S. D. Gillam, J. W. Young, and D. L. Mayes
NASA Code 315-91-70-10-01

Comparative Study of Optical and Radio-Frequency Communication Systems for a Deep-Space Mission
H. Hemmati, K. Wilson, M. K. Sue, L. J. Harcke, M. Wilhelm, C.-C. Chen, J. R. Lesh, Y. Feria, D. Rascoe, F. Lansing, and J. W. Layland
NASA Code 315-91-20-20-55

Effects of Symbol Transition Density on Tracking and Acquisition Performance of the Data Transition Tracking Loop at Low Signal-to-Noise Ratios
S. Million and S. M. Hinedi
NASA Code 315-90-41-13-05

Performance of Pulse Code Modulation/Phase Modulation Receivers With Nonideal Data
L. Lam and S. Million
NASA Code 315-90-41-13-05

Power Spectral Density of Digital Pulse Streams in the Presence of Timing Jitter
M. Z. Win, S. Million, and M. K. Simon
NASA Code 314-30-11-20-03

Node Synchronization in the Block III Maximum-Likelihood Convolutional Decoder
J. M. Layland and J. S. Graham
NASA Code 314-30-60-02-07

Optimum and Practical Noncausal Smoothing Filters for Estimating Carrier Phase With Phase Process Noise
W. J. Hurd
NASA Code 314-30-61-02-02

High-Dynamic Frequency Tracking Using Wavelets
K. Hamdan, H. Tsou, and S. M. Hinedi
NASA Code 314-30-11-20-05

Beam Squint Due to Circular Polarization in a Beam-Waveguide Antenna
T. Cwik and V. Jamnejad
NASA Code 314-30-42-02-14

Author Index


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.