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Adaptive low-bandwidth tracking of galileo and pioneer 10 carriers
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Watola, D. A. |
| Copyright Year | 1992 |
| Description | In the Deep Space Network, tracking of residual carrier phase typically occurs with a fixed-bandwidth phase-locked loop using a bandwidth sufficiently wide to prevent loss of lock under worst-case conditions of signal dynamics, received signal phase noise, and receiver phase noise. Much of the time, however, such a high bandwidth is not required and may inflict unnecessarily heavy penalties on loop signal-to-noise ratios. This article describes a technique for improving tracking performance by permitting initial tracking at narrow bandwidths and gradually widening the loop as needed. The cost is a requirement for signal buffering, which is relatively inexpensive for low data rate applications. Results based on off-line processing of recorded carrier data from Galileo and Pioneer 10 are presented, and show potential 10-16 dB gains in loop SNR over worst-case fixed-bandwidth tracking. |
| File Size | 528246 |
| Page Count | 12 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19930009723 |
| Archival Resource Key | ark:/13960/t5q867736 |
| Language | English |
| Publisher Date | 1992-11-15 |
| Access Restriction | Open |
| Subject Keyword | Communications And Radar Deep Space Network Losses Phase Locked Systems Signal To Noise Ratios Low Cost Bandwidth Receivers Pioneer 10 Space Probe Galileo Spacecraft Spacecraft Tracking Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
