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 二次多项式函数
 Piecewise quadratic polynomial functions are employed to perform the analysis of linear time-varying systems. With the treatment of the product of two time functions,operational matrices of integration are developed. 本文应用分段二次多项式函数推导了两个时间函数乘积积分的运算矩阵，并根据这些矩阵，把一组线性时变系统的状态方程简化为一套便于计算机运算的数值方程。 短句来源
 Piecewise Quadratic Polynomial Functions and Applications to Linear Time-Invariant Systems 分段二次多项式函数及在线性时不变系统中的应用 短句来源 Operational Matrices of Piecewise Quadratic Polynomial Functions with Application to Linear Time-Varying Systems 分段二次多项式函数的运算矩阵及在线性时变系统中的应用 短句来源
 相似匹配句对
 A PROPERTY OF QUADRATIC POLYNOMIAL 二次多项式的一个性质讨论 短句来源 Factorization of a Quadratic Polynomial in N Elements n元二次多项式的因式分解 短句来源 On Polynomial Rings 关于多项式环 短句来源 On Factorial Polynomial 关于阶乘多项式 短句来源 Piecewise Quadratic Polynomial Functions and Applications to Linear Time-Invariant Systems 分段二次多项式函数及在线性时不变系统中的应用 短句来源

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 This paper presentS a new polynomial function-piecewise quadratic polynomial function, and demonstrates two relative theorems With the treatment of linear time-invariant Systems, the integration operational matrices are developed. By applying these operationla matrices, the dynamic equations are transformed into aset of algebraic equations. A recursive algorithm is derived and this approach is verified to be right by two examples. 本文介绍一种新的多项式函数分段二次多项式函数,同时,阐述了两个相关的定理。针对线性时不变系统,推导了积分运算矩阵,并且应用这些运算矩阵把动态方程转变成一组线性代数方程。文中导出了时不变状态方程的一组递归算式,最后通过两个例子验证了这种方法的正确性。 Piecewise quadratic polynomial functions are employed to perform the analysis of linear time-varying systems.With the treatment of the product of two time functions,operational matrices of integration are developed.Applying these operational matrices,the dynamic equation is simplified to a set of algebraic equations which is more accurate for digital computation.Illustrative examples are included for demonstration. 本文应用分段二次多项式函数推导了两个时间函数乘积积分的运算矩阵，并根据这些矩阵，把一组线性时变系统的状态方程简化为一套便于计算机运算的数值方程。该方法与其他正交函数计算方法相比有更高的精确度，文中两个例子验证了该理论及方法的正确性。 In the paper,the quadratic polynomial function smoothing-method is used to smooth the sampling data,which is proved to be effective in filtering the high frequency noise.Two data process methods both by Discrete Fourier Transform(DFT)and by Fast Fourier Transform(FFT)are compared.An algorithm used to analyse the leakage current and the reference voltage simultaneously in frequency domain is also provided. 采用二次多项式滑动平滑法对采样数据进行平滑,有效地滤除了信号中的高频噪声。对数据处理的两种方法———离散傅立叶变换和快速傅立叶变换进行了比较。给出了一种能够同时对泄漏电流和参考电压进行频域分析的算法。 << 更多相关文摘
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