The invention discloses a characteristic
model parameter identification method based on input
smoothing. The characteristic
model parameter identification method is characterized in that a characteristic model of a controlled
system object can be acquired, and an
intermediate variable and an unknown coefficient variable can be built according the input and the output of the controlled
system object; the unknown coefficient variable can be identified by adopting the identification
algorithm to acquire an identification value, and then the identification value can be corrected by adopting the projection
algorithm, and the corrected identification value can be used as the unknown coefficient variable of the next period; and at last, an intermediate
control variable can be calculated according to the unknown coefficient variable, and therefore the input of the controlled
system object of the next period can be acquired, and then the characteristic parameter identification of the
current period can be completed. The characteristic
model parameter identification method is advantageous in that the change of the
control variable can be limited by adopting the
smoothing design of the control input, and the rate of change of the characteristic
model parameters can be further limited, and then the identification of the characteristic
model parameters can be realized; and at the same time, the second-order model and the first-order model of the daily use can be covered, and therefore the good versatility and the good application prospect can be provided.