With respect to the minimization of the overall average variance of interference noise under the standard Gaussian approximation condition, the optimal partial auto-correlation function of the spreading sequences for A-CDMA systems is derived. 在标准高斯近似条件下,以最小化系统平均多址干扰方差为准则,推导出了A-CDMA系统最佳扩频序列的部分自相关函数形式;
The characters of the designation are: Adopt the theory of Overall Data Planning, the development is data-oriented instead of business-oriented because of the variance of the business. 采用总体数据规划方法,信息系统的开发面向数据,而不是面向处理过程,因为处理过程是多变的。
This paper reviews the telecom regulation theory concerned and its development, and by applying institutional economic theory, argues that telecom regulation, as an institutional equilibrium, is an overall system arrangement whose variance is fraught with multiple equilibrium and path dependence. 本文回顾了有关电信管制理论及其发展,通过运用制度经济学理论分析了电信管制作为一种制度均衡,是整体性的制度安排,其变迁存在着多重均衡和路径依赖。
This paper examines the importance of industry variables on the performance of Chinese firms based on the questionnaires to business people. The results indicate that industry account for 11.8% of overall financial performance variance, 16.3% of profitability variance and 23.2 sales growth variance. 本文在对商务人士进行产业变量问卷调查的基础上研究了产业效应对中国公司绩效的影响,证实了产业解释了中国企业11.8%总体财务绩效方差,16.2%的盈利能力方差和21.8%的销售增长率方差。
Trace metal element distribution is distribution pattern overall trends in more complex, the central high value appeared. ( 3) Compared to two pilot half variance structure, display is differ, for the same soil properties, some performance is consistent, others show inconsistencies. 微量金属元素分布总体趋势是分布格局复杂,中部多处出现高值。(3)对比两试点的半方差结构,显示不一,对同一土壤性质,有的表现一致,有的则表现不一致。