Wind power blade ultrasonic detection signal self-adaptive adjustment and gate self-adaptive selection method

The invention relates to a wind power blade ultrasonic detection signal self-adaptive adjustment and gate self-adaptive selection method, which comprises the following steps of: firstly, performing internal scanning on a wind power blade by adopting an ultrasonic nondestructive detection technology to obtain ultrasonic data; then, ultrasonic data obtained through scanning are subjected to three-dimensional treatment and interface wave removal treatment in sequence, a signal point with the highest wave height in the ultrasonic data obtained after interface wave removal treatment serves as an adjustment datum point, and standardized ultrasonic data are obtained after the ultrasonic data obtained after interface wave removal treatment is adjusted through a signal self-adaptive adjustment algorithm; and finally, analyzing the standardized ultrasonic data through a gate adaptive selection method, and sequentially creating a first gate and a second gate so as to obtain plate layer detection data and adhesive layer