The present invention discloses a method for direction finding of incoherently distributed sources under strong
impulse noise. The method comprises the following steps: first, obtaining snapshot sampling data, performing de-
impact preprocessing, and constructing a generalized
Capon space
spectrum function; second, initializing the
quantum position of each arrow and setting parameters to construct a
fitness function; third, dividing the arrow group into sub-arrow groups, and performing
fitness function evaluation on all arrows. The
quantum position of the arrow with the best fitness in each sub-arrow group is selected as the optimal
quantum position; fourth, updating the quantum position of each arrow according to the shooting mechanism; fifth, mapping the updated quantum position of each arrow to a position, calculating the updated
fitness function value, and updating the optimal quantum position of each sub-arrow group; and sixth, returning to step three, looping and iterating until the maximum number of iterations is reached, outputting the optimal quantum position set, and transforming it into the central
azimuth and angular spread estimates of the incoherently
distributed source through mapping. The method is robust and high-performance under strong
impulse noise conditions.