Digital realization method of FFT and its application in adjusting velocity damping coefficient of inertial navigation system

Aiming at the velocity damping feedback system commonly used in inertial navigation, this paper proposes principle of decomposing output attitude based on FFT algorithm and gives spectrum adjustment ratio. The effectiveness is verified from two aspects: data simulation actual solution. In addition, design implementation algorithm, butterfly computation operator symmetry applied to effectively reduce complexity dual core chip technology impact complex timing. engineering applicability demonstrated.