| TFSK-MFSK技术在近海数据传输中的应用研究 |
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| 引用本文： | 张招前,殷建军,项祖丰,汤健彬.TFSK-MFSK技术在近海数据传输中的应用研究[J].工业仪表与自动化装置,2011(3):36-39. |
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| 作者姓名： | 张招前 殷建军 项祖丰 汤健彬 |
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| 作者单位： | 浙江工业大学车辆工程研究所,杭州,310014 |
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| 摘 要： | 介绍了TFSK(Time Frequency Shift Keying)-MFSK(Multiple Frequency Shift Keying)的数据传输方法.该系统采用纠错能力很强的串行级联码对信号进行编码,串行级联码的外码选用(255,223)RS码,内码选用(2,1,7)卷积码,信号译码采用软判决维特比(Vi...
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| 关 键 词： | TFSK-MFSK调制 串行级联码 维特比译码 |
Application research of TFSK-MFSK technology in offshore data transmission |
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| ZHANG Zhaoqian,YIN Jianjun,XIANG Zufeng,TANG Jianbin.Application research of TFSK-MFSK technology in offshore data transmission[J].Industrial Instrumentation & Automation,2011(3):36-39. |
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| Authors: | ZHANG Zhaoqian YIN Jianjun XIANG Zufeng TANG Jianbin |
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| Affiliation: | (Institute of Vehicle Engineering,Zhejiang University of Technology,Hangzhou 310014,China) |
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| Abstract: | This paper presents a data transmission technology based on Time Frequency Shift Keying（TFSK） and Multiple Frequency Shift Keying（MFSK）.It takes serial concatenated codes with strong correction ability to signal encoding and the outer codes of serially concatenated code uses（255,223） RS codes,inner codes uses（2,1,7） convolution code.Signal decoding takes soft-decision of Viterbi codes.TFSK-MFSK modulation improves the situation that MFSK increases M resulting in low degree of utilization ratio of bandwidth so that it has more frequency combination ways which use the idea of frequency hopping and spread spectrum for reference to signal transmission.And it is not limited at acoustic channel with narrower frequency range and has more effective anti-jamming and low attenuation ability. |
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| Keywords: | TFSK-MFSK modulation serial concatenated codes viterbi codes |
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