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1)  linear filtering
线性滤波
1.
The modified Riccati equation for discrete-time linear filtering with incomplete measurements
基于不完全量测下离散线性滤波的修正Riccati方程
2.
Experimental study and improvement for linear filtering demodulation system of LPFG
长周期光纤光栅线性滤波解调系统实验研究及改进
3.
Combined with studies of Fraser filtering and linear filtering,the VLF EM can be seccessfully applied to determine the location,the shape,the occurrence and the depth of buried orebodies.
甚低频电磁法(VLF-EM ),具有仪器轻便、方法简单、经济高效等优点;实践表明,应用甚低频磁倾角测量及倾角资料的Fraser滤波、线性滤波处理成果,可以有效地揭示隐伏区段矿体走向延伸与矿化富集部位,矿体形态、产状、埋深特征以及矿体的空间展布、递变规律,为隐伏矿体预测提供科学依据。
2)  linear filter
线性滤波
1.
The road roughness in time field with linear filter was produced by using the C MEX S-function,and the RTW/xPC Target at the hardware in the loop real-time simulation function was used.
采用C MEX S-函数编程的方法来实现时域路面不平度的线性滤波模拟产生,并结合RTW/xPC Target的硬件在环实时仿真功能,将所建立的时域路面不平度模型用于能够模拟实时路况的电液伺服式试验台架中。
2.
A novel decision aided linear filter algorithm for iterative demodulation and decoding of DPSK signals is proposed to improve system performance using the properties of decision aided Turbo DPSK over Rayleigh flat fading channels.
为了提高衰落信道下基于判决反馈的差分迭代译码 (Turbo DPSK)系统的性能 ,针对系统的特点 ,提出了一种基于信道增益线性滤波估计的解调 /译码算法。
3.
The linear filter of numeric image is analyzed in variable field bef o re DFT.
在空间域中,对数字图像的线性滤波进行了分析,讨论了空间域函数h(x,y),给出了数字图像线性滤波的Matlab实现方法。
3)  non-linear filtering
非线性滤波
1.
The linear and the non-linear filtering algorithms is used to suppress narrowband interferences.
针对AR过程的窄带干扰,本文构建了DS扩频系统多窄带干扰下的信号模型,给出了统一的观测模型,并用线性、非线性滤波方法对其进行干扰抑制。
2.
In this paper, we propose a non-linear filtering algorithm, which denoises image through containing the big module coefficients in the frequency domain.
为了更好地保留图像的边缘信息,该文提出了一种保留具有较大模值的Fourier变换系数的非线性滤波方法。
3.
Then using the multiscale edge representation based on the wavelet transform,we propose a non-linear filtering method for images in the scale space.
该文首先介绍了信号小波变换的模极大值点和过零点的特性以及信号的多尺度边缘表示方法,然后介绍了一种在尺度空间基于小波多尺度边缘表示的图像非线性滤波方法。
4)  Nonlinear filtering
非线性滤波
1.
Study on nonlinear filtering method for land vehicle DR navigation;
车载DR导航的非线性滤波方法研究
2.
Algorithm of edge detection based on nonlinear filtering
基于非线性滤波的边缘检测算法
3.
The propagation of the covariance matrix in those most commonly used nonlinear filtering algorithms,such as the extended Kalman filter and the unscented Kalman filter,leads to the lose of its positive definiteness in the update process and makes the filters invalid.
在主流非线性滤波算法中,诸如扩展卡尔曼滤波和Unscented卡尔曼滤波都包含状态协方差矩阵的传递,这在滤波器更新步骤经常引起协方差矩阵失去正定,从而引发滤波器失效。
5)  linear filtering method
线性滤波法
1.
Time history simulation of turbulent wind speed near an actual building was conducted by using the weighted amplitude wave superposition(WAWS) method improved with FFT algorithm and the linear filtering method of auto-regression(AR) model.
采用经过FFT算法改进的谐波叠加法(WAWS)及自回归(AR)模型的线性滤波法对实际工程进行脉动风速时程模拟。
2.
According to the basic theories of harmony superposition method and linear filtering method,the numerical simulation of wind velocity time history for long-span spatial lattice structure was realized by programming with MATLAB language in such methods as harmony superposition method,FFT-updated harmony superposition method,interpolation method,and auto-regressive method of linear filtering method.
根据谐波叠加法和线性滤波法的基本原理,采用MATLAB语言编写程序分别实现了常规谐波叠加法及其改进的快速傅里叶变换算法和插值算法以及线性滤波法的自回归法对大跨度空间网格结构风速时程的数值模拟,并模拟了2个工程实例的风速时程。
3.
According to the numerical simulation methods of wind load in the latest years,the development process of the method is expounded,and the harmony superposition method is introduced briefly,as well as the linear filtering method,the wavelet analysis\'s basic principles in the numerical simulation of wind load and some problems existed.
通过对近年来风荷载模拟方法的总结,简单论述了其发展历程,并简要介绍了谐波叠加法、线性滤波法以及小波分析在风荷载模拟中的基本原理以及其中存在的一些问题。
6)  Linear filter
线性滤波器
1.
Employing the fundamental principle of linear filter model,an improved simulation method is developed based on a high-order filter model for randomly undulatory sea surface.
根据线性滤波器模型的基本原理,提出了一种改进的基于高阶滤波器的随机起伏海面仿真方法。
2.
Based on analyzing the existed scanner model,a promoted model is proposed for better imitating the processing of scanner,in which the method of computing a linear filter is promoted,the filter is used to mimic the picking up pixel of scanner.
为了能够更好地模拟扫描仪对图像的扫描过程,在分析现有打印机和扫描仪模型的基础上,提出了一种改进的扫描仪模型,主要为改进模拟扫描仪采集数据点过程的线性滤波器。
3.
A linear filter of arbitrary frequency with arbitrary bandwidth can be available by adjusting two parameters.
通过调整2个系统参数,可实现任意频点和任意带宽的线性滤波器。
补充资料:波数字滤波器
      由两端终接电阻负载的无源LC梯形滤波器导出的一种数字滤波器结构。应用双线性变换S=k(1-Z-1)/(1+Z-1)可将用波参数描述的无源元件,实现为数字元件。表1列出了无源元件R、C、L及其对应的由延时单元、乘法器和加法器构成的数字元件。
  
  
  通常高阶递归型数字滤波器的级联型或并联型有产生极限环振荡的危险。此外,在输入信号非常小时,由于舍入误差的高度相关,也可能导致数字滤波器的不稳定而产生固定振荡。1971年,提出波数字滤波器的伪无源性概念,并论证了这种数字滤波器的低灵敏度特性。波数字滤波器具有良好的稳定性,可以用较短的系数字长实现,有良好的动态范围,不会出现极限环振荡(即在环路情况下应用也不会出现任何杂散振荡)。这种数字滤波器特别适用于通信系统。
  
  在波数字滤波器结构中,用波参数描述的元件,在联接时必须遵从端口间阻抗匹配的原则。相应地,数字元件之间的联接按其为串联或并联分别采用由乘法器和加法器构成的串联适配器或并联适配器匹配联接。适配器符号及其对应的联接关系见表2。图为三阶椭圆型低通LC 梯形滤波器及其等效的波数字滤波器。  波数字滤波器的另一种结构称为波格型数字滤波器,是由对称型或格型无源LC 滤波器导出的。
  
  

参考书目
   A. Antonious, Digital Filter : Analysis and Design,McGraw-Hill Co.,New York,1979.
  

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