Digital beam formation method of satellite navigation receiving device

The present invention discloses a digital beam formation method of a satellite navigation receiving device. The method comprises the following steps: (1) the N-way radio-frequency signals received by N array antennas (N is not less than 2) are subjected to simulation down conversion, A/D conversion and digital orthogonal down conversion to obtain N-way zero intermediate frequency digital signals xn (n=1, 2, ..., N); and the N-way zero intermediate frequency digital signals are subjected to capture tracking processing, aiming at the kth satellite, N carrier phase estimation results [Phi]n can be obtained, the N signal amplitude estimation results An can be obtained, and N carrier-to-noise ratio estimation results CNRn can be obtained, wherein the superscript k represents the kth GNSS navigation signal processed by the satellite navigation receiving device. The digital beam formation method of the satellite navigation receiving device is suitable for the platform with antenna posture fixing and is also suitable