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针对模拟式再平衡回路在数字量输出和应用现代控制技术方面存在缺陷,提出了一种捷联式陀螺仪数字化再平衡回路的设计与实现方式.首先介绍捷联式陀螺仪再平衡回路的三种实现方式,提出设计与实现再平衡回路的方法;其次对整个回路建立数学模型,针对数字再平衡普遍存在的量化误差问题,采用基于特征模型的黄金分割自适应控制方法设计回路控制器;最后对整个回路进行仿真,验证数字式再平衡回路性能.仿真结果证实提出的回路实现方式能有效地提高捷联式陀螺仪的性能.
Aiming at the defects of digital output and application of modern control technology in analogue rebalance circuit, a design and implementation method of digital rebalancing loop for strapdown gyroscope is proposed.Firstly, the three Then a method to design and realize rebalance circuit is proposed. Secondly, a mathematical model is established for the whole circuit. Aiming at the problem of quantization error which is ubiquitous in digital rebalancing, the golden section adaptive control method based on feature model is used to design the loop controller. Finally, The entire loop is simulated to verify the performance of the digital rebalance loop.The simulation results show that the proposed loop implementation can effectively improve the performance of the strapdown gyroscope.