DATA SMOOTHING PROCESSING UNIT

摘要

PURPOSE:To optimize the filtering effect for smoothing data by changing a sampling block length when a frequency component giving a largest effect on the input data is subjected to change and applying filtering to the input data with the least squares method. CONSTITUTION:An FFT processing section 25 analyzes the intensity of each frequency component of data stored in a data storage section 24 by the FFT algorithm. A parameter setting section 26 refers to the frequency component with the highest intensity of the input data to decide a sampling period length optimizing the filtering effect of the least squares method. Then a least squares method processing section 27 uses data included in the sampling period length decided by the parameter decision section 26 to implement the filtering by the least square method. Then an output processing section 28 outputs data processed by the least square method processing section 27 for each set timing to the outside of the processing unit via an interface section 29.