重庆大学学报：自然科学版2012，Vol.35Issue(3)：98-102,5.
自适应滤波器在提高持续正弦信号采样精度中的应用
The application research on improvement of constant sinusoidal signal sampling precision based on adaptive filter
摘要
Abstract
A novel scheme is present to improve the conversion accuracy of ADC.The proposed approach uses adaptive sinusoidal filter.For the measurement of the signal with given frequency,the automatic adjustment of filter coefficients is based on least mean-square error rule,which is a mathematical tool can be employed to make filter output signal achieve the best approximation to the needed one.Then based on the result,it is able to get the amplitude and phase of the measured signal accurately.MATLAB software is used to verify the effectiveness of the algorithm.It proves that adaptive filter has improved the accuracy and signal-to-noise ratio of ADC,which is equal to increase the conversion digits.关键词
自适应算法/滤波/ADC/均方误差Key words
adaptive algorithms/filter/ADC/mean square error分类
信息技术与安全科学引用本文复制引用
尹刚,司瑞琦,李长明..自适应滤波器在提高持续正弦信号采样精度中的应用[J].重庆大学学报：自然科学版,2012,35(3):98-102,5.基金项目
国家自然科学基金资助项目 （）
