This paper proposes an estimation method of the directions of arrival(DOA) for the broadband signals received by a uniform planar antenna array including the mutual coupling effect. The process modeling of antenna arr...This paper proposes an estimation method of the directions of arrival(DOA) for the broadband signals received by a uniform planar antenna array including the mutual coupling effect. The process modeling of antenna array receiving dynamic signal is obtained accurately via building the array system electromagnetic space-time model, and the mutual coupling effect is included in the synthesis procedure automatically. The broadband signal is divided into several sub-bands, and the complex weight of these sub-bands frequencies is figured out using the least mean square iteration programming. In the proposed method, the mutual coupling effect is compensated at the different frequencies. The calculation results show that the method is suitable for the uniform linear and uniform circular array pattern integration, and it is commendably satisfied with the requirement of engineering design.展开更多
集团型企业在完成内部资金管理信息系统建设之后,迫切需要解决银企直联问题,以满足实时账户信息查询、明细查询、自动转账、交易查询和辅助决策等需求。对此,结合某集团型企业的内部资金管理信息系统发展现状,设计开发一种基于SAP(Syste...集团型企业在完成内部资金管理信息系统建设之后,迫切需要解决银企直联问题,以满足实时账户信息查询、明细查询、自动转账、交易查询和辅助决策等需求。对此,结合某集团型企业的内部资金管理信息系统发展现状,设计开发一种基于SAP(System Applications and Products)系统的银企直联平台。从业务流程设计、硬件部署方案、功能模块设计和技术解决方案等方面对该平台进行分析,并通过实际应用验证其有效性。应用结果表明,该平台能实现资金结算管理透明高效、资金运作动态实时反馈、资金头寸变化实时掌控和资金分析报表智能生成,有助于集团型企业的财务职能朝着价值创造的方向发展。展开更多
提出了一种由非抽样塔式分解和非抽样方向滤波器组实现的具有平移不变性的非抽样轮廓波变换,文中利用M cC le llan变换设计非抽样塔式分解中的满足精确重构条件的圆对称滤波器组。非抽样轮廓波变换具有与视皮层变换相似的频带划分,符合...提出了一种由非抽样塔式分解和非抽样方向滤波器组实现的具有平移不变性的非抽样轮廓波变换,文中利用M cC le llan变换设计非抽样塔式分解中的满足精确重构条件的圆对称滤波器组。非抽样轮廓波变换具有与视皮层变换相似的频带划分,符合人眼视觉特性。利用非抽样轮廓波变换系数的局部高斯模型及最大后验概率法对图像去噪,其峰值信噪比和视觉效果均有较大改善。展开更多
基金supported by the Chinese Natural Science Foundation (61401075)
文摘This paper proposes an estimation method of the directions of arrival(DOA) for the broadband signals received by a uniform planar antenna array including the mutual coupling effect. The process modeling of antenna array receiving dynamic signal is obtained accurately via building the array system electromagnetic space-time model, and the mutual coupling effect is included in the synthesis procedure automatically. The broadband signal is divided into several sub-bands, and the complex weight of these sub-bands frequencies is figured out using the least mean square iteration programming. In the proposed method, the mutual coupling effect is compensated at the different frequencies. The calculation results show that the method is suitable for the uniform linear and uniform circular array pattern integration, and it is commendably satisfied with the requirement of engineering design.
文摘集团型企业在完成内部资金管理信息系统建设之后,迫切需要解决银企直联问题,以满足实时账户信息查询、明细查询、自动转账、交易查询和辅助决策等需求。对此,结合某集团型企业的内部资金管理信息系统发展现状,设计开发一种基于SAP(System Applications and Products)系统的银企直联平台。从业务流程设计、硬件部署方案、功能模块设计和技术解决方案等方面对该平台进行分析,并通过实际应用验证其有效性。应用结果表明,该平台能实现资金结算管理透明高效、资金运作动态实时反馈、资金头寸变化实时掌控和资金分析报表智能生成,有助于集团型企业的财务职能朝着价值创造的方向发展。
文摘提出了一种由非抽样塔式分解和非抽样方向滤波器组实现的具有平移不变性的非抽样轮廓波变换,文中利用M cC le llan变换设计非抽样塔式分解中的满足精确重构条件的圆对称滤波器组。非抽样轮廓波变换具有与视皮层变换相似的频带划分,符合人眼视觉特性。利用非抽样轮廓波变换系数的局部高斯模型及最大后验概率法对图像去噪,其峰值信噪比和视觉效果均有较大改善。
