摘要
针对基于特征点采样的频率算法的问题,采用线性插值的方法对已有的经典过零点测量法进行了改进,而实际情况中电压信号里掺杂着的些许高次谐波和噪声干扰在建模时也加以了考虑,最后利用MATLAB对上述算法在频率相对固定的条件下进行了仿真,证明了算法的有效性。
Aiming at the problem of frequency measurement algorithms based on feature points sampling, the classic zero -crossing point measurement was improved by using linear interpolation method. When the mathematical model was built, the harmonic components and random noise mixed with the voltage signal in the actual situation were considered. Finally, simulations were given, which proves the effectiveness of the algorithm.
出处
《长沙航空职业技术学院学报》
2011年第4期51-54,58,共5页
Journal of Changsha Aeronautical Vocational and Technical College
关键词
频率
测量算法
零点
MATLAB
frequency
measurement algorithm
zero point
MATLAB
