According to transfer functions of the loop filter and the single phase locked loop system, it figures out the loop filters parameters, and introduces the selection of loop bandwidth.

根据环路滤波器传递函数以及单环锁相系统的传递函数，计算出环路滤波器的各个参数，并介绍了环路带宽的选择。

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This paper discusses the design method for high speed loop test road in terms of selection of geometric alignment and parameters of elliptical high speed test road.

本文从几何线型选择及椭圆形高速环道主要参数控制几个方面论述了高速环形试验路的设计方法。

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Moreover, the reference attitude command must be imported from out of the control loop, considering the constraint to attitude sensors selection due to deep-space environment.

同时深空环境对姿态敏感器选用造成了限制，使得从控制回路外部引入参考姿态指令成为必然。

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