谱范数
谱范数的相关文献在1989年到2023年内共计66篇,主要集中在数学、自动化技术、计算机技术、社会科学丛书、文集、连续性出版物
等领域,其中期刊论文64篇、专利文献16756篇;相关期刊50种,包括电子科技大学学报(社会科学版)、军民两用技术与产品、北华大学学报(自然科学版)等;
谱范数的相关文献由95位作者贡献,包括岑建苗、陈小山、沈守强等。
谱范数—发文量
专利文献>
论文:16756篇
占比:99.62%
总计:16820篇
谱范数
-研究学者
- 岑建苗
- 陈小山
- 沈守强
- 何承源
- 邱涛
- 雷林
- 任芳国
- 伍国兴
- 刘新
- 夏铁成
- 孙苏亚
- 张建林
- 张福振
- 张立卫
- 曲滨鹏
- 杨兴东
- 杨晓英
- 杨虎
- 武忠祥
- 田增锋
- 田峰
- 董志清
- 董李娜
- 阮保庚
- 陈成
- 陈飞翔
- 黎稳
- 丁治英
- 于娇
- 冯珍
- 刘倚天
- 刘喜富
- 刘永炎
- 刘金魁
- 刘长河
- 区诗德
- 周兴才
- 周裕中
- 姚奕
- 宋丽娟
- 宋璇坤
- 岑文
- 师白娟
- 常晓鹏
- 张东霞
- 张佳静
- 张化光
- 张娜
- 张宁
- 张宏伟
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李丽丹;
张宏伟;
张立卫
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摘要:
本文求解了目标函数为矩阵谱范数与向量无穷范数之和的一类二次规划的逆问题。先将该问题转化为目标函数可分离变量的凸优化问题,提出用 Gauss 回代交替方向法求解该问题。而对于其中一个子问题的求解过程中发现其仍是目标函数可分离变量的凸优化问题,但无法精确求解每个变量,所以采用非精确方法求解该子问题。最后给出采用的 Gauss 回代交替方向法求解本文问题的数值实验。数据表明,本文所采用的方法能够高效快速地解决该二次规划逆问题。
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雷林;
李笑丽;
邱涛;
何承源
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摘要:
设{Pn},{Qn}和A=flscirc(a0,a1,…,an-1)分别表示 Pell 数列,Pell-Lucas 数列和 n×n 的 FLS循环矩阵.本文研究当A的第一行元素ai 分别为Pi,Qi,P2i,Q2i和PiQi(i=0,1,…,n-1)时矩阵A=flscirc(a0,a1,…,an-1)的欧几里得范数,给出带有Pell和Pell-Lucas数列的FLS循环矩阵的谱范数的边界.
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温朝涛;
陈小山
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摘要:
设p是大于1的偶数,根据方程x-p-1 =0的Newton迭代公式,给出一个计算矩阵极分解的新算法,并证明其具有二次收敛特性.数值例子表明该算法是有效的.%Let p be an even number greater than 1.Based on the Newton iteration for solving the equation x-p-1 =0,the new algorithm is proposed to compute the polar decomposition of a matrix and its quadratic convergence is proved.Numerical examples show that the new algorithm is efficient.
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贺美美
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摘要:
研究包含调和Fibonacci数的一类特殊矩阵的谱范数的上下界问题.根据矩阵范数,调和数列的定义及性质,通过代数方法,给出了这些矩阵的行列式、逆、顺序主子式,以及欧几里得范数和谱范数的上下界.%It discussed the bounds for the spectral norms of particular matrices involving the harmonic Fibonacci numbers.It obtained determinant,inversion,principal minors of these matrices.And it also obtained inequalities by using matrix norms.
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王猛;
李迟生
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摘要:
针对周期长码直接序列扩频(DSSS)信号的伪噪声(PN)序列盲估计问题,提出一种新的谱范数和约束投影逼近子空间跟踪(CAPST)算法相结合的PN序列估计算法.算法首先根据最大化分段协方差矩阵的谱范数法,估计出PN序列的同步点;然后利用CPAST算法,分别估计各子段的PN码序列;最后按照一定顺序拼接成完整的周期长码PN序列.算法具有运算量小、复杂度低、实时处理及硬件实现的优点.仿真结果表明,在较低的信噪比情况,该算法能够有效地估计出同步点和 PN码序列.%For the problem of pseudo-noise(PN)sequence estimation of periodic long code direct sequence spread spectrum(DSSS)signals,a new efficient estimation approach of PN sequence is proposed based on combi -nation spectral norm and constrained projection approximation subspace tracking(CPAST)algorithm.The start po-sition of a data symbol first was searched, maximizing spectral norm of a sub-segment cross-variance matrix, and then PN sequence of every sub-segment with fast CPAST algorithm was estimated, and got complete PN sequence after sorting and splicing in certain order.It has the advantages of lower complexity,less storage,real-time process-ing and easier realization in hardware.The experimental simulation results show that the algorithm can retrieve the estimation of synchronization point and PN code sequence quickly and accurately in low SNR conditions.
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何承源;
邱涛;
雷林
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摘要:
In this paper we study the norms of r-circulant matrices A =Cr (J0,J1,…,Jn-1) and B =Cr (D0,D1,…,Dn-1) where Jn and Dn are Jacobsthal and Jacobsthal-Lucas numbers,and give some bounds for the spectral norms of Kronecker and Hadamard products ofthe r-matrices A and B.%本文研究元素分别是Jacobsthal数列和Jacobsthal-Lucas数列的r-循环矩阵A=Cr(J0,J1,…,Jn-1)和B=Cr(D0,D1,…,Dn-1)得到了矩阵谱范数的上下界,以及两矩阵克罗内克积和阿达玛积后的谱范数上下界.
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苗新;
张东霞;
宋璇坤
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摘要:
In order to solve the problem of network topology connectivity representation of the global power energy internet,by employing the network connection matrix analysis method,the earth”s continents,poles and their interconnections are abstracted as eight nodes and connection channels,which form a connected network and the corresponding connection matrix. Typical power system sectionalizing states and single/bidirectional connection types are selected.Then the spectral norms and spectral condition numbers of the corresponding connection matrixes are calculated and analyzed.The ill-conditioned connection matrixes are improved.The results show that the spectral norm and the spectral condition number can be used as the representation parameters of connection matrixes of the global power energy internet topology.The spectral norm can be used to characterize the complexity of the network topology connectivity.The stability or sensitivity of the corresponding system can be characterized by the spectral condition number.Analyzing system stability using the network connection matrix can serve as an analytical tool for the interconnection of bulk power networks.%为了解决全球电力能源互联网的连通性表述问题,应用网络连通矩阵分析方法,将全球各洲、两极及其互联抽象为8个节点和连接通道,组成连通网络及相应连通矩阵。选取出典型的系统解列状态及单/双向连接类型,计算分析相应连通矩阵的谱范数和谱条件数,改善其中的病态连通矩阵。结果表明,谱范数和谱条件数可以作为全球电力能源互联网拓扑连通矩阵的表述参数。谱范数可以表征其对应网络拓扑连通性的复杂程度。谱条件数可以表征其对应系统的稳定性或者敏感度。利用网络连通矩阵分析稳定性,可以作为大电网互联的一种分析手段。