A Calculation Method of Vector Filtering

Abstract

The invention discloses a calculation method of vector filtering, which includes the following steps: (1) setting the amplitude limit value; (2) judging the vector direction of the data that starts to change, and determining that the data that starts to change is valid regardless of its size; (3) Sampling the next data and judging the vector direction of the data. If the vector direction of the data remains unchanged, the data change is valid regardless of the size; if the vector direction of the data changes, compare the change amplitude of the data with the limit value. If the change amplitude of the data is equal to or greater than the limit value, the data is valid and the direction of the vector is changed at the same time; if the change amplitude of the data is less than the limit value, the data is invalid and the direction of the vector is not changed; (4) Follow the above steps (3) Sample to the last data. The algorithm can improve the response sensitivity to data changes, has a better filtering effect on discrete data and slow-moving data, and has a good resistance to slow-fluctuating data.

Description

technical field [0001] The invention relates to a calculation method for filtering. Background technique [0002] Filtering is the operation of filtering out the frequency of a specific band in the signal, and it is an important measure to suppress and prevent interference. [0003] Existing filtering methods usually use filtering circuits to filter out waveforms with large fluctuations, such as peaks. The response of this method is not sensitive enough, and it cannot filter out slowly fluctuating data and discrete data well. Contents of the invention [0004] In order to improve the response sensitivity to data changes, to have a better filtering effect on discrete data and slowly floating data, and to have a good resistance to slowly fluctuating data, the invention provides a calculation method of vector filtering. [0005] In order to achieve the above object, a calculation method of vector filtering comprises the following steps: [0006] (1) Set the limit value; ...

AI Technical Summary

Problems solved by technology

[0003] Existing filtering methods usually use filtering circuits to filter out the sharp peaks with large waveform changes. The response of this method is not sensitive enough, and it cannot filter out slowly fluctuating data and discrete data well.