Table 1.

CNN structure parameters.

Layer number	Type	Number of feature figures	Size of feature figures	Size of kernel	Length of step
(1)	Input layer	1	2176∗1	—	—
(2)	Convolutional layer	64	79∗1	204∗1	25
(3)	Sampling layer	64	39∗1	2∗1	2
(4)	Convolutional layer	128	28∗1	12∗1	1
(5)	Sampling layer	128	14∗1	2∗1	2
(6)	Convolutional layer	500	1∗1	14∗1	1
(7)	Full connection	2000	1∗1	1∗1	1
(8)	Full connection	100	1∗1	1∗1	1
(9)	Full connection	3	1∗1	1∗1	1