| 基于频谱预处理的RS码盲检测识别方法 |
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| 引用本文： | 解辉,王丰华,黄知涛,张锡祥. 基于频谱预处理的RS码盲检测识别方法[J]. 宇航学报, 2013, 34(1): 128-132. DOI: 10.3873/j.issn.1000-1328.2013.01.018 |
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| 作者姓名： | 解辉 王丰华 黄知涛 张锡祥 |
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| 作者单位： | 1. 国防科技大学电子科学与工程学院，长沙 410073； 2.西南电子设备研究所，成都 610000 |
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| 基金项目： | 国家自然科学基金(61072120);教育部新世纪人才支持计划 |
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| 摘 要： | 针对RS(Reed Solomon)码的盲检测与识别问题，提出了一种基于频谱预处理的检测方法。该方法利用RS码的频域特征，实现对RS码的盲检测与识别，针对高误码情况，对多组码字的频谱分量进行非线性变换和中值滤波，充分利用码字变换频谱的统计信息，使得检测算法可以适应较高的误码环境，同时给出了算法误码适应能力的理论上限。仿真实验表明，算法能够在较高误码率条件下实现对本原RS码的盲检测与识别，性能已接近算法误码适应能力的理论上限。
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| 关 键 词： | RS码 有限域傅立叶变换 盲检测与识别 |
| 收稿时间： | 2011-12-27 |
Blind Detection and Recognition of RS Code Based on Spectral Preprocessing |
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| XIE Hui , WANG Feng-hua , HUANG Zhi-tao , ZHANG Xi-xiang. Blind Detection and Recognition of RS Code Based on Spectral Preprocessing[J]. Journal of Astronautics, 2013, 34(1): 128-132. DOI: 10.3873/j.issn.1000-1328.2013.01.018 |
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| Authors: | XIE Hui WANG Feng-hua HUANG Zhi-tao ZHANG Xi-xiang |
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| Affiliation: | 1.School of Electronic Science and Engineering, National University of Defense Technology，Changsha 410073，China；2.Southwest China Research Institute of Electronic Equipment，Chengdu 610000，China |
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| Abstract: | In order to solve the problem of blind detection and recognition of the RS(Reed Solomon) code, a method based on spectral preprocessing is proposed. In this method, the spectral character is used in the presence of error codes, nonlinear transformation and median filter are used to combine the spectra of large number of codes to improve the performance of the new method in the case of high error rate. Theoretical upper bound of adaptability of error code rate is thus proved. Numerical examples are carried out to show that the proposed method almost reaches the theoretical upper bound. |
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| Keywords: | Reed solomon code Galois field fourier transform Blind detection and recognition |
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