| 过取样D／A转换器中的双层量化技术 |
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| 引用本文： | 许肖梅.过取样D／A转换器中的双层量化技术[J].厦门大学学报(自然科学版),1996,35(5):774-778. |
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| 作者姓名： | 许肖梅 |
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| 作者单位： | 厦门大学海洋学系 |
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| 摘 要： | 比较了在过取样Ｄ／Ａ转换器中使用一比特内部Ｄ／Ａ转换和使用多比特内部Ｄ／Ａ转换的性能，提出采用双层量化技术实现多比特过取样Ｄ／Ａ转换．理论分析和初步实验表明：本方法能极大地改进系统的性能，系统输出在信噪比和动态范围方面都有所提高．
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| 关 键 词： | 过取样，噪声整形环路，双层量化，D／A转换 |
The Dual-quantization Technique for Oversampling D/A Converter |
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| Xu Xiaomei.The Dual-quantization Technique for Oversampling D/A Converter[J].Journal of Xiamen University(Natural Science),1996,35(5):774-778. |
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| Authors: | Xu Xiaomei |
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| Institution: | Dept. of Oceang. |
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| Abstract: | The performances of oversampling D/A converter by using 1-bit internal D/A conversion and by using multi-bit internal D/A conversion, respectively, were studied. Thedual-quantization technique was.provided to implement multi-bit oversampling D/A converter.Theoretial analysis and simulant experiment show that, by using this method,the performance of system in both signal-noise ratio and dynamic range can be greatly improved. |
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| Keywords: | Oversampling Noise-shaping loop Dual-quantization D/A conversion |
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