System delay estimation method and device of array radar and electronic equipment

The invention provides a system delay estimation method and device of an array radar and electronic equipment. The method comprises the steps that a plurality of radar signals of an array radar are acquired, and the radar signals comprise direct coupling wave signals; based on a preset screening rule, screening from the plurality of radar signals to obtain a plurality of target direct coupling wave signals; for each target direct coupling wave signal, determining a data set corresponding to the target direct coupling wave signal; according to the data set corresponding to each target direct coupling wave signal and the radar delay model, a target solution is obtained, and the target solution comprises actual measurement system delay of the array radar. The radar delay model is constructed according to the time delay parameter of the direct coupling wave signal, the time delay parameter of the transmitting antenna, the time delay parameter of the receiving antenna and the system delay parameter of the array ra