Application of Adaptive Wavelet Based on Lifting Scheme in Simulation Data Filter of Guided Bomb

For problems of sample data processing in IMU of guided bombs, a novel method using adptive wavelet based on lifting scheme was proposed in this paper. When noises of data are unknown, wavelet decomposition coefficients in high frequency are used to estimate the amplitude of noises, and polynomial fitting predictors are adopted in the time-varying system. The flight simulation results on a three-axis turntable show that the method is efficient, and especially fit to time-varying processes when the data needs to be predicted.