该文对MIMO - OFDM系统中基于导频辅助的LMMSE信道估计算法进行了研究，导出了其估计均方差的下界。
The LMMSE channel estimation algorithms based on Pilot-Assisted is investigated for MIMO-OFDM systems, and the Low-Bound of MSE for LMMSE channel estimation is derived.
采用椭球剖分策略剖分可行域为小的椭球，用投影次梯度算法解松弛二次规划问题的拉格朗日对偶问题，从而获得原问题的一个下界。
A projection subgradient algorithm for the Lagrangian dual problem of the relaxed quadratic problem is employed to general lower bounds of the optimal value for the original problem.
这种算法既无需选择传统超稳定自适应算法的补偿滤波系数，又无需对信号向量的下界要求条件。
The smooth coefficients which must be chosen in conventional hyperstable algorithm are not needed, and requirement that signal vector has a lower bound is not needed either.
基于熵率上下界收敛性，该文提出了一个算法以计算二态隐马尔可夫过程的熵率。
Based on the convergence of bounds for the entropy rate of binary hidden Markov processes, a numerical approach is advanced.
本文对线性选择算法在比较算法类中给出了基于中值序列而设计的任何改进算法的复杂度下界；
The lower bound of worst complexity is presented for any improved BFPET selecting algorithm based on median sequence.
为此，研制了煤层压裂参数数据库，用以确定分析参数的上下界，从而较好地解决了反演算法的多解性问题。
However inversion will bring the problems of multiple solutions. Therefore, we established CBM fracturing parameter database. In this way, we solved the multirole-solution of method of inversion.
这里我们得到了原始似然函数的下界，EM算法的核心就是通过最大化这个下界来最大化原始似然函数。
The main idea of EM is to maximize this lower bound so as to maximize the original (incompelte) likelihood.
导出了具有正定对称核的积分方程最小特征值的一个下界估计式。以此为基础，获得了相应特征值的一种算法。
In this paper an estimation of lower bound of minimum eigenvalue for the integral equation is obtained. Based on this estimation we introduce a new method for the corresponding eigenvalue calculation.
导出了具有正定对称核的积分方程最小特征值的一个下界估计式。以此为基础，获得了相应特征值的一种算法。
In this paper an estimation of lower bound of minimum eigenvalue for the integral equation is obtained. Based on this estimation we introduce a new method for the corresponding eigenvalue calculation.
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