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采用奇异值分解和古卓夫柯夫方法分析了捷联惯导系统误差方程的观测性问题 ,讨论了如何选择系统的不可观状态 ,并用直方图给出了形象的说明 .
The singular value decomposition and the Goudoffov method are used to analyze the observability of SINS error equations. The method to choose the unobservable state of the system is discussed. The histogram is used to illustrate the image.