Sampling rate selection in Computer Control System

Continuous systems can be converted into discrete systems to form computer control systems. The selection of sampling rate is a key issue. If the sampling period is too large, the reconstruction of continuous signal distortion will be too large. If the sampling period is too small, the computation of the computer will be increased and the Computer load will be increased.

We need to find a quantity to measure the value of this period, and use this value to select a sampling period. Set n to the number of sampling cycles contained in each rise time. TR is the rising cycle. H indicates the sampling period. Then, n = TR/h; the test shows that N is in 4 ~ 10 is the most reasonable.