The invention discloses a frequency sequence
estimation method based on a FARIMA-LSTM model, and the method comprises the steps: collecting a
frequency band signal in a target environment, carrying out the preprocessing of the
frequency band signal, mapping the preprocessed
frequency band signal to a (0, 1) interval, obtaining a frequency sequence, inputting
training set data into a constructed FARIMA model, estimating
model parameters, generating a residual sequence according to the
model parameters, and carrying out the
estimation of the frequency sequence through the residual sequence. And training the constructed LSTM model by using the residual sequence, combining the FARIMA model with the trained LSTM model, inputting
test set data into the FARIMA-LSTM model for single-step prediction, evaluating model performance and adjusting parameters, generating a frequency sequence from a signal to be estimated, inputting the frequency sequence into the trained FARIMA-LSTM model for single-step or multi-
step frequency sequence prediction, and finally, performing frequency
sequence prediction on the signal to be estimated. And outputting a single-step or multi-step
estimation result. Fractional difference
processing is carried out on a frequency
time sequence through an FARIMA model, interference of periodic components on
trend prediction is eliminated, meanwhile,
deep mining is carried out on randomness,
burstiness and nonlinear dynamic characteristics in FARIMA residual errors through an LSTM network, and step-by-step estimation of the frequency sequence is achieved.