| 基于群变换的BCH码在VWDK系统中的研究 |
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| 引用本文： | 唐燕,殷奎喜. 基于群变换的BCH码在VWDK系统中的研究[J]. 金陵科技学院学报, 2009, 25(2): 27-30 |
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| 作者姓名： | 唐燕 殷奎喜 |
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| 作者单位： | 1. 南京师范大学泰州学院应用物理系,江苏,泰州,225300
2. 南京师范大学物理科学与技术学院,江苏,南京,210097 |
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| 基金项目： | 地理信息科学江苏省重点实验室开放基金 |
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| 摘 要： | VWDK调制具有很好的窄带性质和低的误码率,依据国家对系统占用带宽的定义,首先估算系统带宽;其次考虑超窄带调制的实质是利用了载波相位的差异,而FIR滤波器无法较好的保持线性相位,引入了一种特殊的IIR滤波器;最后,在信道编码上,使用基于群变换的BCH码.数值实验表明在保证10-5误码率的前提下,信嗓比降低5分贝.
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| 关 键 词： | VWDK调制 滤波器 BCH码 误码率 |
A Study on BCH Codes Based on the Group Change in the VWDK System |
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| TANG Yan,YIN Kui-xi. A Study on BCH Codes Based on the Group Change in the VWDK System[J]. Journal of Jinling Institute of Technology, 2009, 25(2): 27-30 |
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| Authors: | TANG Yan YIN Kui-xi |
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| Affiliation: | 1.Taizhou College of Nanjing Normal University;Taizhou 225300;China;2.Nanjing Normal University;Nanjing 210097;China |
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| Abstract: | It is proved that the VWDK modulations are narrowband and have low error rate.According to the state regulations on communication bandwidth,the system bandwidth is estimated firstly.Then the differences of carrier phase are used in the UNB modulations and a special IIR filter is introduced,for the FIR filter can't keep linear phase.At lastly,the group change BCH codes are used in the channel error codes.The simulation indicates that SNR has reduced 5 DB in order to ensure the error rate below 10-5. |
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| Keywords: | VWDK modulation filter BCH codes error rate |
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