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Parameter Identification of Spin-Stabilized Projectiles Using a Modified Newton-Raphson Minimization Technique

机译:使用改进的牛顿-拉夫逊最小化技术的自旋稳定弹丸的参数识别

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摘要

A modified Newton-Raphson minimization technique for determining aerodynamic coefficients and stability derivatives of spin-stabilized projectiles with a six-degree-of-freedom nonlinear dynamical model was developed. The dynamical model for the projectiles is constructed having process noise in the system, and the instrumentation Noise of the system outputs is simulated by a data model statically similar to the measured data. The state Equations of the dynamical system are continuous types while the measurement data are discrete. A Continuous-discrete estimation model for the motion of the projectiles is constructed in this paper.
机译:开发了一种改进的牛顿-拉夫森最小化技术,该技术利用六自由度非线性动力学模型确定自旋稳定弹丸的气动系数和稳定性导数。所构建的弹丸动力学模型在系统中具有过程噪声,并且通过与测量数据静态相似的数据模型来模拟系统输出的仪表噪声。动力学系统的状态方程是连续类型,而测量数据是离散的。本文建立了弹丸运动的连续离散估计模型。

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