窄带

The low-level wind field displayed cyclonic character on the north part of the squall line, whereas on its south part the wind field pattern was anticyclonic, with clear convergence of westerly and southeast inflows in between.

飑线不同位置的水平风场结构有很大不同，在飑线北端，低层是气旋性辐合风场，飑线南端是反气旋性辐合风场，而中部沿强对流窄带的前部是偏西和东南风的风场辐合。

Simple upper bounds of signal to noise ratio improvement factor are derived for the suppression of a narrowband first-order autoregressive process and analytical conclusions corroborated by numerical examples.

研究了判决反馈滤波器在直扩系统中估计和抑制窄带干扰的性能，给出了判决反馈滤波器抑制一阶自回归干扰时信噪比提高因子的闭合表达式的上界。

In this paper, an extended divide and conquer algorithm is intended proposed, which is for solving the real symmetric band generalized eigenvalue problem under distributing environment Eigenvalue partition theorem is presented and proved Based on divide and conquer by extension, this algorithm computes generalized eigenpaires of symmetric band matrix pencil by bisection and generalized Rayleigh quotient iteration Theoretic analysis and numerical results show that this algorithm is better than the classic software package LAPACK when bandwidth is small and the scale is large Combined with multisection, which has good parallelism, it got good effects under distributed environments

提出了分布式环境下计算对称带状广义特征值问题的一种扩展分治算法，给出了特征值分割定理及其证明算法在扩展分治的基础上，利用二分压缩结合广义Rayleigh商迭代计算广义特征对理论分析和数值实验表明，对于窄带宽大规模的广义特征值问题，该分治算法明显优于LAPACK软件包结合并行性好的多分法，在分布式环境下获得了很好的并行效果1 引言本文研究了对称带状广义特征值问题Ax =λBx ( 1)的并行计算，其中，A ，B均为半带宽为r的n阶实对称带状矩阵且其中之一是正定的本文总假设B是正定的求解此问题有两种传统方法，第1种方法是通过计算矩阵B的Cholesky分解，将问题( 1)转化为标准特征值问题[1～3] ，进一步

This paper presents the design procedure of a narrow band SAW filter with high rectangle factor.

文章介绍了一种窄带、高矩形度声表面波滤波器的设计过程，制作出了中心频率为140。

The purpose of this thesis is to study the suppression of Narrow Band Interference for Direct-Sequence Spread Spectrum communication system.

本文的研究方向是直接序列扩频信号中多个窄带干扰的自适应抑制。

Computer simulations show that it is superior to the conventional approaches in most cases and thus is a good approach for narrow - band interference suppression in spread spectrum systems.

通过计算机仿真可以看出，在多数情况下它比传统方法的性能优越，这表明它是一种对于扩频系统中窄带干扰的抑制的好方法。

The experimental results indicate that the revised narrow banding algorithm is robust.

实验结果表明，改进的窄带算法具有较好的鲁棒性。

On the basis of multi-solid cavity filter's bandpass charaters analysing, constructed filter's evaluation function.

针对多固体腔窄带滤光片，根据其通带的矩形度与纹波特性提出了膜系设计的评价函数。

This paper presents an ultra-narrow bandpass HTS filter for potential application in the base station receiver of the 3G mobile communication .

研制了一种适用于3G 移动通讯基站接收机的高温超导窄带带通滤波器。

Through the research on recrystallization disciplinarian of narrow strip, the results are agreed well with measured values. It shows that it is feasible when investigative model is used in strip continuous product line.

对窄带生产线上轧制普碳钢时再结晶规律的研究，所得到的结果与实测符合的较好，说明本研究给出的模型组合用于窄带热连轧的生产实际是可行的。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。