一种低复杂度的卷积编码CPM的非相干序列检测算法 |
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引用本文: | 童启森,杜欣军. 一种低复杂度的卷积编码CPM的非相干序列检测算法[J]. 电子器件, 2009, 32(4): 784-787 |
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作者姓名: | 童启森 杜欣军 |
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作者单位: | 中国电子科技集团公司第五十研究所,上海,200063;中国电子科技集团公司第五十研究所,上海,200063 |
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基金项目: | 中国电子科技集团公司创新基金项目资助"连续相位调制方式下的编码问题的研究" |
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摘 要: | 连续相位调制(CPM)与卷积编码相结合可以进一步提高系统的功率利用率,这使得它在无线通信领域中得到广泛应用.给出了卷积编码CPM的一种低复杂度的非相干序列检测算法,通过正交化处理有效地减少了匹配滤波器个数;在序列检测阶段通过状态融合减少维特比译码的状态数,然后结合判决反馈进行检测.
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关 键 词: | 连续相位调制 卷积码 非相干序列检测 |
A Low-complexity Noncoherent Sequence Detection Algorithm for CPM Combined with Convolutional Code |
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Abstract: | Combining continuous phase modulation (CPM) with convolutional code can further improve the power efficiency of the system, so it is widely used in wireless communications. This paper proposes a low-complexity noncoherent sequence detection algorithm for CPM combined with convolutional code. The number of matched filters is remarkably reduced by orthogonalizing process; and the states of viterbi decoding are reduced with the state combination, and then the signal is detected with decision feedback. |
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Keywords: | continuous phase modulation, convolutional code, noncoherent sequence detection |
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