Abstract: In strapdown systems, rebalance loops connected with tuned gyros are generally designed based on control decoupling, while output decoupling is realized by proceeding their output current data. This paper discusses the realization means of output decoupling in detail,establishes the computation equations,designs the hardware construction and software flow chart.Simulation shows that the effects of decoupling are satisfying. The described plan therefore is feasible.

Key words: tuned gyro, rebalance loop, output decoupling, strapdonw