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Efficient coning algorithm design from a bilateral structure

机译:从双边结构设计高效的锥面算法

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Many carriers in aerospace applications require high-precision strapdown inertial navigation system (SINS) for navigation. Under complex motion such as maneuver, vibration, etc., the performance of SINS algorithm needs to be paid special attention, since additional algorithm error can be induced due to complex motion. In order to improve the performance of SINS attitude algorithm, a bilateral coning algorithm is presented, which is based on a bilateral correction structure containing only one vector cross-product of which the undetermined coefficient is on both sides. In order to design the bilateral coning algorithm, the classical compressed algorithm coefficient is first given. Then the constraint relationship between the bilateral correction coefficient and the uncompressed correction coefficient is constructed. Further, it is shown that how to design the bilateral correction coefficient according to the constraint relationship. (The maneuver residual error based on the uncompressed correction structure is derived in Appendix .) After the full analysis and simulation, the bilateral coning algorithm is verified to be very efficient in maneuver environment, for it has low algorithm throughput close to that of the compressed algorithm and high maneuver accuracy close to that of the uncompressed algorithm.
机译:航空航天应用中的许多航母都需要高精度的捷联惯性导航系统(SINS)进行导航。在复杂的动作(例如机动,振动等)下,SINS算法的性能需要特别注意,因为复杂的动作可能会导致额外的算法错误。为了提高捷联惯导姿态算法的性能,提出了一种双边圆锥算法,该算法基于双边校正结构,该校正结构仅包含一个矢量叉积,其不确定系数在两侧。为了设计双边锥算法,首先给出经典的压缩算法系数。然后构造双边校正系数和未压缩校正系数之间的约束关系。此外,示出了如何根据约束关系设计双边校正系数。 (基于未压缩的校正结构的机动残余误差在附录中得出。)经过全面的分析和仿真,证明了双边圆锥算法在机动环境中是非常有效的,因为它的算法吞吐量很低,接近压缩的吞吐量。该算法具有很高的机动精度,接近未压缩算法。

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