航空兵器Issue(1)：83-89,7.DOI:10.19297/j.cnki.41-1228/tj.2017.01.014
基于CCSDS的自适应传输系统设计及实现
Design and Implementation of Adaptive Transmission Scheme Based on CCSDS Protocol
李松 1王成华 2朱秋明 1胡滨 2张小飞 1刘伟强2
作者信息
- 1. 南京航空航天大学 雷达成像与微波光子技术教育部重点实验室, 南京 211106
- 2. 南京航空航天大学 电子信息工程学院, 南京 211106
- 折叠
摘要
Abstract
For the problem that the data transmission using fixed rate in deep space communication can affect the throughput of the system, an adaptive transmission scheme of transceiver based on CCSDS protocol standards is proposed.In this scheme, according to received signal quality, the symbol rate in the process of data transmission is changed dynamically.The SNR of the receiver is estimated in real time, then the signal transmission rate is adjusted to improve the communication quality and system throughput under the premise of ensuring the system symbol error rate.Furthermore, the system scheme is implemented and verified by using the Xilinx Virtex5 FPGA chip as the core of the hardware platform, and the throughput of the system is analyzed and compared.The result shows that the scheme of the system is simple in structure, and under the background of Gaussian white noise above 0 dB, it can achieve real time estimation of the SNR and make adaptive adjustment to the symbol rate of the whole system.关键词
深空通信/自适应传输/吞吐量/信噪比估计/CCSDSKey words
deep space communication/adaptive transmission/throughput/SNR estimate/CCSDS分类
信息技术与安全科学引用本文复制引用
李松,王成华,朱秋明,胡滨,张小飞,刘伟强..基于CCSDS的自适应传输系统设计及实现[J].航空兵器,2017,(1):83-89,7.
