“…The operating logic of the Whale Algorithm (WOA) optimization is as Figure 7. The specific neural network design is as follows [5]: the number of neurons in the input layer is 2, the number of neurons in the output layer is 1, the input data is the second harmonic amplitude and ambient temperature, and the output data is the actual CO concentration. After several trainings, it is found that the WOA optimization BP neural network has the best compensation effect, and the number of iterations of the network is 120 and the population is 6.…”