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Study on the Efficient Technology Applied to High Precision and High Resolution Storage in High Speed NCO
Author(s): 
Pages: 156-159
Year: Issue:  1
Journal: JOURNAL OF SICHUAN UNIVERSITY(ENGINEERING SCIENCE EDITION)

Keyword:  数控振荡器(NCO)曲线拟合分段差分;
Abstract: 针对高精度高分辨率数控振荡器(NCO)存储器消耗巨大资源的问题,提出了利用奇偶对称性的存储内容映射技术,基于地址内容模拟曲线技术和基于存储内容的分段差分技术;通过存储内容和地址的数学模型从理论上推导了利用奇偶对称性的存储内容映射技术和基于地址内容模拟曲线技术的性能;对基于存储内容的分段差分技术进行了定性分析和实例仿真.这3种技术均能较好地减少存储资源,将其组合起来应用,其存储资源能减少到3%以下.
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