详细推导了基于功率倒置阵列的线性约束最小方差(LCMV)算法及其递推公式,避免了矩阵求逆的复杂运算。
The linearly constrained minimum variance (LCMV) algorithm based on the power inversion array and its iterative formula are deduced in the paper, which avoids the complexities of matrix inversion.
为了进一步改善波束形成器的降噪性能,文章提出了一种基于维纳滤波的线性约束最小方差波束形成器。
A new method of linearly constrained minimum variance beamforming that based on Wiener filter is proposed to improve its performance of noise reduction.
该波束形成器首先让信号经过维纳滤波器消除非相干噪声,而后经过经典的线性约束最小方差处理,最终达到较好的语音增强效果。
This kind of beamformer can eliminate incoherent noise when signals pass Wiener filter, then achieve a better speech-enhance effect by linear constraints minimum variance beamforming.
研究了带有约束的均值漂移和方差加权的混合非线性回归模型.得到了相应的一阶和二阶诊断统计量。
We study restriction of Nonlinear Regression Diagnostic Models with case-weights and meanshifte simultanously, and some new diagnostic statistics are derved.
提出了一种基于线性约束最小方差波束形成(LCMV)的自适应方向图控制方法。
An adaptive pattern control method based on linearly constrained minimum variance (LCMV) is presented.
研究一类随机系统具有期望的动态误差系数、稳态输出方差和相对稳定裕度约束的满意PID控制问题。
The problem of satisfactory PID control for a class of stochastic systems with constraints on dynamic error coefficient, steady-state output variance and relative stability margin is considered.
文中给出并证明了在椭球约束条件下线性模型中,误差方差的非负二次估计的可容许性问题的一个必要条件。
The paper raises and proves an essential condition of volumetric property of nonnegative secondary estimation of deviation and variance in linear model.
最后,从方差分量估计的角度讨论了先验约束对观测值自由度的影响。
At last, the effect of apriori constraints on the degree of freedom for observations is discussed from the viewpoint of VCE.
研究序约束条件下自回归条件异方差(ARCH)模型的统计推断。
This paper deals with the statistical inference of an autoregressive conditional heteroscedasticity (ARCH) model under restriction.
本文给出了线性模型中椭球约束下,误差方差非负二次估计可容许的一个必要条件。
This paper gives a necessary condition for the admissibility of a nonnegative, quadratic estimator for error variance in linear model with respect to restricted ellipsoidal parameter space.
在经典均值-方差模型的基础上,提出了存在交易费用时基于风险价值约束的资产配置模型。
On the basis of the classical mean-variance model, the article proposes the asset allocation model with value-at-risk constraint and transaction cost.
结果表明:方差分析法估计值偏差最大,而约束最大似然法的估计值最准确。
The simulation results indicate that the estimates of REML are most accurate and the estimates of ANOVA are most biased, compared with those of the other methods.
在比较弱的约束条件下,给出了最小方差控制方案、控制律及自适应控制算法。
Under the mild conditions, control scheme, control law and control algorithm are given.
提出一种最小方差谱估计和最小加权范数约束结合的非参数类数据外推方法。
The paper proposes a nonparameter data extrapolation method based on minimum variance spectrum estimation and minimum weighted norm constraint.
提出一种最小方差谱估计和最小加权范数约束结合的非参数类数据外推方法。
The paper proposes a nonparameter data extrapolation method based on minimum variance spectrum estimation and minimum weighted norm constraint.
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