| 多入单出正交空时分组码系统的调制识别 |
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| 引用本文： | 钱国兵,李立萍,郭亨艺.多入单出正交空时分组码系统的调制识别[J].电子与信息学报,2015,37(4):863-867. |
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| 作者姓名： | 钱国兵 李立萍 郭亨艺 |
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| 作者单位： | 电子科技大学信息工程系成都 611731 |
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| 基金项目： | 通信信息控制和安全重点实验室基金，国家自然科学基金(61201282)资助课题 |
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| 摘 要： | 在现代无线通信系统中，采用正交空时分组码(STBC)的多天线发射技术是提高通信速率和可靠性，并且能够实现简单译码的关键技术。该文针对瑞利信道系统模型，提出一种适用于多入单出正交空时分组码(OSTBC)的调制识别算法。该算法通过对接收到的数据进行重排，将多入单出的系统模型转化为类似多入多出的系统模型，并且根据信源的特殊性用最大似然的思想实现调制类型的识别。仿真结果验证了所提算法的有效性。
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| 关 键 词： | 无线通信 调制识别 多入单出 正交空时分组码 |
| 收稿时间： | 2014-05-14 |
Modulation Identification for Orthogonal Space-time Block Code in Multiple Input Single Output Systems |
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| Qian Guo-bing,Li Li-ping,Guo Heng-yi.Modulation Identification for Orthogonal Space-time Block Code in Multiple Input Single Output Systems[J].Journal of Electronics & Information Technology,2015,37(4):863-867. |
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| Authors: | Qian Guo-bing Li Li-ping Guo Heng-yi |
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| Abstract: | In modern wireless communication systems, multiple-antenna-transmitting in association with Orthogonal Space-Time Block Code (OSTBC) is a key technology to improve communication rate, reliability, and decoding complexity. In this paper, a modulation identification algorithm is proposed which is well suitable for the Multiple Input Single Output (MISO)-OSTBC system. First, the MISO system is transformed into a Multiple Input Multiple Output (MIMO) system by reshaping the received data. Then, maximum likelihood based approach is used to identify the modulation. Simulations validate the effectiveness of the proposed algorithm. |
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| Keywords: | Wireless communication Modulation identification Multiple Input Single Output (MISO) Orthogonal Space-Time Block Code (OSTBC) |
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