necessary and sufficient statistic

The paper introduces the sequential algorithm for joint detection and estimation on the basis of sufficient statistics and reproducing probability density function.

在未知参数的充分统计量和再生概率密度函数的基础上,引入了联合检测与估计的序贯算法,给出了算法的实现框图,并将该算法应用于高斯噪声中初相位未知信号的联合检测与估计当中。

The sufficient statistics and maximum likelihood estimation of the parameter D which denotes the spatial density of particle are given.

提出了随机分配的质点之间距离分布的概念,给出了最近距离分布公式,得到了最近距离和k次距离分布的众数,矩及质点空间密度D的充分统计量和极大似然估计。

By applying the topology theory,the necessary and sufficient condition for the existence and uniqueness of the equilibrium point of GHNN was obtained.

应用拓扑理论,得到了广义Hopfield神经网络平衡点的存在性和唯一性的充分必要条件;利用矩阵的性质,通过构造Lurie型Liapunov函数,得到了广义Hopfield神经网络绝对指数稳定的充分条件以及几类特殊神经网络绝对指数稳定的充分必要条件。

The main results are: if A=(a_(ij))_(3×3), Reλ(A)<0, and c~Tb·trA~2-c~TA~2b≤0, the necessary and sufficient condition for absolute stability of the system is that c~Tb≤0, c~TA~(-1)b≥0; especially when A=(diag(-ρ_1, -ρ_1, -ρ_2),) the necessary and sufficient condition for absolute stability of the system is c~Tb≤0, (c~TA~(-1)b≥0.

利用popov频率法,讨论了三阶直接控制系统dXdt=AX+bf(σ),σ=cTX零解的绝对稳定性,获得了A在cTb·trA2-cTA2b≤0的条件下,其零解绝对稳定的充分必要条件为cTb≤0,cTA-1b≥0;特别是当A=diag(-ρ1,-ρ1,-ρ2)时,零解绝对稳定的充分必要条件为cTb≤0,cTA-1b≥0。

A solvable necessary and sufficient condition: P(x)=bG(x)-G′(x)/G(x)-2F(x)Q(x)=F~2(x)-F′(x)-F(x)(bG(x)-G′(x)/G(x))+cG~2(x).

利用降阶法研究了变系数二阶线性微分方程y″+P(x)y′+Q(x)y=f(x)的可解性,得到了一个可解的充分必要条件:存在有限形式的可微函数F(x)、G(x),G(x)≠0及常数b和c使得P(x)=bG(x)-G′(x)/G(x)-2F(x),Q(x)=F2(x)-F′(x)-F(x)(bG(x)-G′(x)/G(x))+cG2(x)。

Necessity of the Management Idea Innovation of Chinese Government;

论中国政府治理理念创新的充分必要性

sufficient-necessary condition about proportionalityof mean value premium principle;

平均值原理成比例性的充分必要条件

The Project Supervision System about Information System Engineering is Need for Adequacy

信息系统工程监理存在的必要性和充分性

A Sufficient And Necessay Condition For Integrability Of Two-order Linear Differential Equation;

二阶线性常微分方程可积的一个充分必要条件

Necessity and Effective Approaches of Vocational Guidance to Full-employment;

充分就业目标下职业指导的必要性和有效途径

The Necessity of Fully Developing the Political Resources of“Inter-party Supervision” in China;

论充分开发我国“党际监督”政治资源的必要性

Necessary and Sufficient Conditions of Distinguishing the Positive Definite Matrix and Its Equivalency;

判别正定矩阵的充分必要条件及其等价性

The Sufficeent and Nesessary Conditions for the Unique Steady State of the Nonlinear Nonautonomous Circuits;

非线性非自治电路唯一稳态的充分必要条件

Finally, optimality necessary and sufficient conditions for nonlinear convex semidefinite programming are proved.

并给出了非线性半定规划的最优性必要和充分条件.

Sufficient and Necessary Condition of Controllability and Observability for a Class of Composite Systems;

一类组合系统能控性和能观测性的充分必要条件

The terrorist attack rammed home the need for tighter security.

恐怖分子的袭击使人们充分认识到加强安全措施的必要性。

The terrorist attack ram home the need for tight security

恐怖分子的袭击使人们充分认识到加强安全措施的必要性

Necessary and Sufficient Condition for the Existence of Positive Solutions of Nonlinear Second-Order Ordinary Differential Systems;

非线性二阶常微分系统边值问题正解存在的充分必要条件

Analysis of the Necessity and Effective Ways of College Career Guidance in the Purpose of Full Employment;

充分就业目标下高校职业指导的必要性和有效途径分析

The loss of all his belongings=# cc0066> rammed home the need to insure against fire and theft.

财产损失充分证明了参加火灾和偷盗保险的必要性。

We have already seen that the condition is necessary so we have to prove only the sufficiency.

我们已经看到此条件是必要的，故我们仅需证明其充分性。

In this paper, we study the transitive properties of bipartite tournaments and tournaments, and give the sufficient and necessary conditions of them.

研究了二部竞赛图和竞赛图的传递性，给出了它的充分必要条件。

The loss of all his belongings rammed home the need to ensure against fire and theft.

他所有财产的丧失充分说明防火防盗保险的必要性。