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Research and Experiment of Time-Delay Correction Approach Based on Remote Multi-Antenna Arraying
- LIU Wenjun1, HAO Wanhong2, CHEN Ming1, LI Haitao3
Author information
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1. Beijing Research Institute of Telemetry, Beijing 100076, China
2. Beijing Institute of Tracking and Telecommunications Technology, Beijing 100094, China
3. Beijing University of Aeronautics and Astronautics, Beijing 100191, China
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History
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| Received |
Revised |
Published |
| 12 Jan 2015 |
14 Jun 2015 |
20 May 2022 |
| Issue Date |
|
| 20 May 2022 |
|
Abstract
In very long baseline interferometry (VLBI) system, remote multi-antenna arraying technique can be on the basis of the existing antenna facility and give full play to the overall efficiency of resources and infrastructure, which can expand the TT&C communication distance, and provide the TT&C communication service for China's future deep-space exploration mission, and will have a special application prospect. Firstly, we describe the features of remote multi-antenna arraying, and then study on the time-delay correction approach between key stations, using "Chang'e-3" downlink data to carry out the technological experiment. With this technique we get the precise time-delay difference values between Kashi, Qingdao, Beijing and Sanya stations, successfully implement baseband compound and symbol stream compound of the four stations' signals, and optimize the parameters of the software correlators. This technique has also been applied to process ESA's Venus Express weak signal baseband compound and laid a good engineering application foundation for future deep-space exploration signal compound.
Keywords
antenna arraying /
time-delay correction /
correlation processing /
signal compound
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LIU Wenjun, HAO Wanhong, CHEN Ming, LI Haitao.
Research and Experiment of Time-Delay Correction Approach Based on Remote Multi-Antenna Arraying. Journal of Deep Space Exploration, 2015, 2(3): 267‒271 https://doi.org/10.15982/j.issn.2095-7777.2015.03.013
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