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- A Method for Time-Varying Channel Parameter Estimation Based on Fractional Fourier Transform 一种基于分数阶傅立叶变换的时变信道参数估计方法
- channel parameter estimation 信道参数估计
- Exploiting the redundancy on bit-level, the paper is proposed iterative algorithm based on soft-in/soft-out channel and parameter estimation, and applies the algorithm to GSM EFR system. 该文在比特级上利用信源编码参数的冗余信息在软输入、软输出信道解码和信源参数估计之间进行迭代运算,并将此联合解码算法运用于GSM EFR系统。
- The algorithm can improve the estimation accuracy of multipath fading channel parameters and avoid the error propagation problem of conventional approaches. 该算法改进了衰落信道参数估计的准确度,并消除了判决方法的错误传递性。
- Also, the CRB of parameter estimation of LFM under normal gauss circumstance is carried out and a real low boun... 另外推导出了一般高斯环境下的LFM参数估计的CRB界,为一般高斯环境下的估计的参数的方差提供实际下界。
- The appro-aches of recognition, determining order, parameter estimation and examination of th-ese models are presented. 给出了这三种模型的识别、定阶、参数估计和检验方法; 讨论了某些非平稳模糊随机时间序列;
- For the problem of PPS parameter estimation, the DPT method for PPS parameter estimation is introduced. 针对多项式相位信号的参数估计问题,介绍了基于DPT的PPS信号参数估计的方法;
- Baum-Welch algorithm is often made to optimize parameter in parameter estimation problem. 在参数估计问题中常常要用Baum-Welch重估计算法来优化参数。
- An abridged algorithm of 2D hidden Markov chain model and its parameter estimation method are made. 针对现有的二维隐马氏模型算法给出了一种简化算法及参数估计方法。
- Levenberg-Marquardt algorithm can also be used to solve the nonlinear inverse problem of the parameter estimation. 遗传算法是一种相对较新的用于最优化估计的方法,也可以用于求解反问题。
- By analyzing the relationship between basis expansion model (BEM) and Doppler spectrum, the authors propose a scheme based on fractional BEM for the estimation of doubly selective channel parameters. 摘要通过分析复指数基扩展模型(BEM)与多普勒扩展频谱之间的关系,提出一种基于分数倍基扩展模型的双选信道估计方法。
- Nonlinear parameter estimation approach can also be used to converse the formation permeability. 可以采用非线性参数估计的方法反演地层的渗透率;
- Marchesi with which we make use of it in the parameter estimation of the gray model. Marchesi创造的一种曲线拟合技术,可以用于GM模型的参数估计中。
- Data requirements of parameter estimations are thus reduced. 此方法可确实简化参数的估计与缩减其所需历史资料量。
- Employing the pilot information of ZP-OFDM systems,this algorithm gives accurate initial channel parameters. 该算法利用ZP-OFDM系统导频信息,给出精确的信道参数初始值。
- Genetic Parameter Estimation and Analysis on Improvement Effect of High-Yielding Gutta-percha Clones Associate with Eucommia ulmoides Oliv. 杜仲高产胶无性系遗传参数估计与改良效果分析。
- The optimum detection based on the maximum likelihood is realized through the parameter estimation of two kinds of image block DCT coefficients. 该方法利用DCT变换中图像块低频能量的差异将DCT系数划分成平滑和纹理两类;并分别对这两类数据进行参数估计以实现基于最大似然比的最优检测.
- Based on the assumption, the proposed method solves the linear channel parameters of each path and creates a channel matrix which can be used for ICI cancellation. 基于这个假设,我们解出线性的通道参数进而重建通道矩阵,目的去消除载波间的互相干扰。
- The workstation is in charge of real-time data acquirement, data store, net communication, alert or other parameter estimation. 其中,现场工作站是旋转机械状态监测系统的重要组成部分,主要实现数据实时采集、数据存储、网络通信、报警及特征参数的实时分析判断等功能。