| 基于AD9957的数字正交调制器设计 |
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| 引用本文： | 刘国栋.基于AD9957的数字正交调制器设计[J].无线电工程,2009,39(12):59-60. |
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| 作者姓名： | 刘国栋 |
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| 作者单位： | 中国电子科技集团公司第五十四研究所,河北,石家庄,050081 |
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| 摘 要： | 数字正交调制器是软件无线电体系中关键组成部分,小型化、通用化、参数可配置是数字正交调制器发展需求。基于ADI公司正交上变频器AD9957芯片特点,提出了一种基于AD9957的通用数字正交调制器的设计方案,具有参数可变、硬件结构简单、集成度高、数字成形的特点。给出了核心硬件电路框图,进行了设计实现和测试,与参考数据进行了对比,实测结果与参考数据基本一致。
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| 关 键 词： | 正交调制 QDUC EVM |
Design of Digital Quadrature Modulator Based on AD9957 |
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| LIU Guo-dong.Design of Digital Quadrature Modulator Based on AD9957[J].Radio Engineering of China,2009,39(12):59-60. |
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| Authors: | LIU Guo-dong |
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| Affiliation: | LIU Guo-dong ( The 54 th Research Institute of CETC, Shijiazhuang Hebei 050081, China ) |
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| Abstract: | Digital quadrature modulator is one of the key parts of Software Radio system. Now the miniature, universal and parameter- configured digital quadrature modulator is required. Based on the features of QDUC chip- AD9957, a new design solution of universal digital quadrature modulator based on AD9957 is proposed, and it features variable parameters, simple hardware structure, high-degree integration, and digital shaping, etc. Finally, the core hardware circuit theory diagram and the experiment results of are given. Test results show that the actual signal performance is basically in consistent with reference data. |
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| Keywords: | QDUC EVM |
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