| BICM-ID联合迭代载波相位和信道估计算法 |
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| 引用本文： | 崔鹏辉,杨育红,曾祥峰.BICM-ID联合迭代载波相位和信道估计算法[J].计算机应用,2012,32(4):946-948. |
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| 作者姓名： | 崔鹏辉 杨育红 曾祥峰 |
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| 作者单位： | 信息工程大学 信息工程学院，郑州 450002 |
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| 基金项目： | 国家重大科技专项(2009ZX03003-005-01) |
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| 摘 要： | 针对16APSK信号，提出一种比特交织编码调制迭代译码(BICM-ID)联合迭代载波相位和信道估计算法。该算法基于最大似然估计算法，利用BICM-ID译码产生的硬判决信息，通过迭代的方式在相位估计、信道估计和译码之间交换信息，从而实现相位估计、信道估计和译码的联合处理。在误码率为10-4时，该算法与理想性能曲线仅相差0.5dB左右；算法能够估计的相差范围为-20°,20°]。
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| 关 键 词： | 比特交织编码调制迭代译码 16APSK信号 相位估计 信道估计 最大似然估计 |
| 收稿时间： | 2011-10-12 |
| 修稿时间： | 2011-12-06 |
Iterative carrier phase and channel estimation algorithm in BICM-ID |
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| CUI Peng-hui,YANG Yu-hong,ZENG Xiang-feng.Iterative carrier phase and channel estimation algorithm in BICM-ID[J].journal of Computer Applications,2012,32(4):946-948. |
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| Authors: | CUI Peng-hui YANG Yu-hong ZENG Xiang-feng |
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| Affiliation: | Institute of Information Engineering, Information Engineering University, Zhengzhou Henan 450002, China |
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| Abstract: | This paper proposed an iterative carrier phase and channel estimation algorithm for 16APSK in Bit-Interleaved Coded Modulation with Iterative Decoding(BICM-ID).The algorithm was based on Maximum Likelihood(ML) estimation,which made use of the decision information provided by the decoder and exchanged information between phase,channel estimation and decoder through iteration,so as to combine phase,channel estimation with decoder.The simulation results show the algorithm can get the performance only 0.5 dB lower than the ideal one,and can effectively estimate the phase difference from-20 degree to 20 degree. |
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| Keywords: | Bit-Interleaved Coded Modulation with Iterative Decoding(BICM-ID) 16APSK signal phase estimation channel estimation Maximum Likelihood(ML) estimation |
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