Rapid convergence type anti-interference method of satellite navigation antenna array

The invention discloses a rapid convergence type anti-interference method of a satellite navigation antenna array. The rapid convergence type anti-interference method is characterized by comprising the following steps: (1) carrying out analog down frequency conversion, A/D (Analog/Digital) sampling digitalization and digital orthogonal down frequency conversion on a radio frequency signal received by an array antenna respectively to generate a digital baseband signal; with regard to the antenna array with the array element quantity of N, totally obtaining N paths of the digital baseband signals, namely x1(n), x2(n),..., xN(n); and (2) selecting the Nth path of digital baseband signal xN(n) as a reference signal and carrying out filtering processing on the other (N-1) paths of digital baseband signals. According to the rapid convergence type anti-interference method disclosed by the invention, a convergence speed of an algorithm is promoted under the condition that the interference quantity or the interference