Method for inhibiting interference of outer radiation source radar

The invention belongs to the technical field of radar, and discloses a method for inhibiting interference of an outer radiation source radar. The method comprises the following steps of a, obtaining a reference signal vector and an echo signal vector; 2, obtaining the remained echo signal vector; 3, constructing a constant false alarm detection vector; 4, storing the secondary maximum value and the index of the element in the clutter suppression weight vector, and initializing; 5, judging whether a first element and a second element meet the preset condition or not; 6, when the first element and the second element meet the preset condition, storing a second distance Doppler unit, and turning to step 7; when the first element and the second element do not meet the preset condition, adding j with 1; when j is smaller than or equal to N, turning to step 5; when j is greater than N, adding i with 1, wherein j is equal to i+1; when i is smaller than or equal to N-1, turning to step 5; 7, resetting the reference si