| Issue |
ITM Web Conf.
Volume 11, 2017
2017 International Conference on Information Science and Technology (IST 2017)
|
|
|---|---|---|
| Article Number | 03006 | |
| Number of page(s) | 6 | |
| Section | Session III: Network and Communication | |
| DOI | https://doi.org/10.1051/itmconf/20171103006 | |
| Published online | 23 May 2017 | |
Subspace Method-based Blind SNR Estimation for Communication between Orbiters in Mars Exploration
1 College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
2 Department of overall design, the China Academy of space technology, Beijing, China
a Corresponding author: fei_zxf@163.com
In Mars exploration the effective time of communication between orbiters is short, and the relative distance and gesture between them change fast. The signal to noise ratio (SNR) estimation is required in receiver to change adaptively the data rate in the communication system. Therefore, SNR estimation is a key technique in adaptive data transmission. We propose a blind SNR estimation for communication between orbiters in Mars exploration via subspace method. The subspace method has better SNR estimation than some conventional SNR estimation algorithms. Numerical simulations demonstrate the effectiveness and improvement of the proposed algorithm.
© Owned by the authors, published by EDP Sciences, 2017
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