切比雪夫

qiē bǐ xuě fū
  • Chebyshev
切比雪夫切比雪夫
切比雪夫[qiē bǐ xuě fū]
  1. 切比雪夫矩圆变换器的CAD设计

    Chebyshev Rectangular-Circular Transducer by CAD

  2. 基于开关电容技术的8阶切比雪夫滤波器及PSpice仿真研究

    Eight-stages Chebyshev filter using switch-capacitance circuit technology and its PSpice simulation

  3. 介绍了一种遗传算法在FIR数字滤波器设计&加权切比雪夫最佳逼近准则优化设计方法中的应用。

    A new application of genetic algorithm in FIR filter with weighting Chebyshev optimal approximation method is presented .

  4. 基带由双模的高线性度的四阶切比雪夫形式的有源RC低通滤波器以及三级可变增益放大器构成。

    The chain consists of a dual-mode , highly linear , fourth order Chebyshev active RC filter and three VGA stages .

  5. 采用窗函数法和等波纹切比雪夫法设计了FIR型Hilbert数字滤波器;

    The FIR Hilbert digital filter is designed by using the window function method and the ripple Chebyshev method .

  6. 在GPS数据处理中,对相位观测值周跳的解算及卫星轨道坐标的拟合推算,切比雪夫多项式是比较好的算法之一。

    For determination of cycle slips of GPS phase measurements and calculation of satellite orbital coordinates in GPS data processing the Chebyshev polynomial is a good method .

  7. 采用窗函数法、频率抽样法和切比雪夫最佳一致逼近法,通过调用Matlab信号处理工具箱中的函数设计低通数字滤波器。

    By using MATLAB signal and using window method , frequency sampling and Chebyshev approximation the design of low pass digital filter in the toolbox have been processed .

  8. 3利用所转换出来的耦合矩阵,结合HFSS软件设计了同轴腔对称广义切比雪夫滤波器,并给出了仿真结果和测试结果。

    Using the synthesized matrix and HFSS software to design generalize-chebyshev filters .

  9. 在国际标准化组织(ISO)最近发布的标准几何产品技术规范(GPS)中,增添了一种新的圆度误差评定方法切比雪夫拟合法。

    Among the newly issued standards Geometrical Product Specifications , by the International Standard Organization ( ISO ), there is a new evaluating method Chebyshev fitting method .

  10. 以切比雪夫(Chebyshev)近似积分法为基础,提出了计算任意钢筋混凝土箱形截面M-φ关系的计算机方法。

    Based on Chebyshev 's integration , a computer method is proposed for calculating the moment-curvature relationship of reinforced concrete box sections .

  11. 对作为兴波阻力计算核函数的Green函数的单、双积分项分别采用特殊函数展开、切比雪夫多项式逼近的方法进行计算,提高了计算速度。

    In the single and double integral terms of Green function , the kernel function of wave-making resistance expression , Special function expansion method and Chebyshev polynomial approach method have been adopted respectively , which greatly increase the calculation speed .

  12. 在隐式时间积分中,将ADI技术与多区域切比雪夫伪谱时域算法相结合来改善该算法的稳定性条件从而提高了计算效率。

    In implicit time integration , the combination between ADI technique and the MCPSTD algorithm is used to improve the stability condition and efficiency ;

  13. 基于切比雪夫函数逼近方法,设计了一种无限冲激响应(IIR)数字滤波器来实时地对海浪噪声进行滤波。

    An Infinite Impulse Response ( IIR ) digital filter is designed easily and economically based on Chebyshev function to filter the wave disturbance real time .

  14. 介绍了一种基于等波纹切比雪夫逼近准则的FIR数字滤波器的最优化设计方法,通过MATLAB的仿真实现,证明了该方法是一种最优化的设计。

    In this paper , an optimum design method of FIR DF based on equivalent ripple Chebyshev approximation rule is introduced . It was proved to be an optimum design method by simulation implementing based on MATLAB .

  15. C~-单调范数与Henig有效点的切比雪夫标量化

    C ~ # - monotone norm and Chebyshev scalarization of Henig efficient point

  16. 在某MTD雷达信号处理系统中,采用切比雪夫一致逼近法设计MTD滤波器,讨论其硬件实现方法。

    In a MTD radar signal processing system , a MTD filter based on Chebyshev uniform approximation is designed , and its hardware implementing method is discussed .

  17. 详细地研究了目前应用广泛且效果良好的缺失数据处理方法&EM算法,并将EM算法与切比雪夫拟合算法结合,应用于缺失数据时的卫星轨道计算中。

    As a current wide application and good method in processing missing data , EM algorithm is studied in detail , and apply to satellite orbit calculation by combining chebyshev fitting method when it has missing datas .

  18. 由切比雪夫多项式的最佳一致逼近的性质可以得到n阶Wang-ball曲线的最佳一致逼近曲线,并得到其最优的逼近精度。

    Because of the best uniform approximation property of Chebyshev polynomial , the best uniform approximation curve of the Wang-ball curve can be got , and it had the best precision too .

  19. 采用切比雪夫多项式法和Floquet理论相结合来预测铣床运行中的颤振和分岔,得到了颤振稳定性极限图。

    The shifted Chebyshev polynomials and Floquet theory are adopted for the prediction chatter stability and bifurcation in milling . The stability lobes diagram is obtained .

  20. 差分进化算法(DE)是由RainerStorn和KennethPrice为求解切比雪夫多项式而于1996年共同提出的一种采用浮点矢量编码在连续空间中进行随机搜索的优化算法。

    Differential Evolution ( DE ) by Rainer Storn and Kenneth Price for solving Chebyshev Polynomials in 1996 jointly proposed a vector-encoded using floating-point margin continued space random search optimization algorithm .

  21. 证明等波纹切比雪夫法所设计的Hilbert数字滤波器较窗函数法有较好的性能,更能较好的提高无功功率测量精度。

    It is proved that the Hilbert digital filter designed by the ripple Chebyshev method performs better than the filter designed by using the window function , and can improve the precision of the reactive power measurement .

  22. 此外,对于采用切比雪夫一致逼近法设计MTD多普勒滤波器组进行了分析,并对相关的恒虚警检测及MTD的工程实现进行了简单论述。

    In addition , the analysis of Chebyshev-weighted filter is used for MTD Doppler filter bank is given . CFAR detection corresponded to MTD and its implementation is also simply discussed .

  23. 另外,提出了基于最小均方的分块并行(Partitioned-ParallelLeastMeanSquare,PLMS)自适应波束形成算法,并在该算法中加入了切比雪夫约束来获得低的波束旁瓣性能。

    Then , an efficient Partioned-Parallel DBF algorithm based on the least mean square algorithm ( PLMS ) is proposed . Moreover , low sidelobe of the beam pattern is obtained by constraining the static steering vector with Tschebyscheff coefficients .

  24. 利用切比雪夫多项式使矛盾方程组系数矩阵正交化,利用Householder变换直接解矛盾方程组,尽可能降低病态条件数,提高了计算精度。

    The coefficient matrix is orthogonalized by using polynomial and the overdetermined equations are solved by Householder transformation . The numerical ill-condition is decreased as low as possible , hence the operational accuracy is increased .

  25. 经研究表明,运用EM算法能挖掘出观测数据的潜在数据,弥补因数据量不够切比雪夫多项式需要降阶处理的不足,提高了卫星坐标计算的精度。

    The research shows that the EM algorithm can dig out the potential data of observation data , then make up for the deficiency that chebyshev polynomial must reduce the order because of the lack data , finally improve the precision of satellite orbit coordinates . 3 .

  26. 本文讨论兼容模拟和数字(IIR)滤波器的CAD方法,对于各种类型的典型目标函数,列出切比雪夫滤波器传递函数系数的计算式(反归一形式)、程序框图及设计实例。

    A CAD method of the analog and digital ( IIR ) filter is discussed . The expressions for evaluating the coefficients of the transfer functions ( anti-norma - lization form ), flowcharts and design examples of the Chebyshev 's filter are given for various types of objective functions .

  27. 基于该积分器电路,采用无源网络模拟法设计出一个1dB波纹的五阶切比雪夫对数域低通滤波器。

    Based on this integrator circuit , a fifth order Chebyshev log domain low pass filter with 1 dB ripples is designed by the passive simulation method .

  28. 结果表明采用窗函数法和切比雪夫最佳一致逼近法(调用remez函数)设计过程简单,而采用频率抽样法设计过程复杂。

    The result shows that it is simple to use window method and Chebyshev approximation method ( call remez function ) to design , but complicated to use the frequency sampling method .

  29. 本文针对信号处理中一类常用的非线性模型,提出了切比雪夫正交多项式神经网络(TOPNN)。

    For a common kind of nonlinear in signal processing , Tchebycheff Orthogonal Polynomial Neural Network ( TOPNN ) is put forward in the paper .

  30. 一种由我们提出的,不常用的数值积分方案,即切比雪夫点积分方案(CPQ),被用来生成单元质量矩阵和刚度矩阵。

    An untraditional numerical integration scheme , i.e. , Chebyshev points quadrature ( CPQ ), is suggested by us to form the elemental mass matrix and stiffness matrix .