查询词典 signal noise ratio

Beginning with raising the signal noise ratio of the global identification, the global identification method weighted with modal shapes is presented, which permutes and composes the elements of FRF in the form of the sum of modal shape squares and obtains global modal parameters with relatively high SNR.

本文在综合分析现代模态分析领域国内外现状的基础上，以学科的一些难点为研究对象，对系统模态参数识别、动态建模、动态修改领域存在的问题进行了广泛深入的研究，取得了一系列独创性的研究成果。

The invention can automatically or hand-operated adjust target light source, to provide controllable light source in some light signal/noise ratio range.

本发明可以对目标光源进行自动或手工调节，达到了在一定光信噪比范围提供可控光源的要求。

Moreover, by appending filter and interference light filter, the signal noise ratio of the system is enhanced greatly.

此外，还分析了检测光学系统，对信号中的噪声进行分析，在系统中增加了滤波装置和滤光片，大大提高了检测系统信噪比。

The signal-noise ratio model is theoretical basis of optimization system design and uprating system imaging ability.

信噪比模型的建立为进一步优化系统设计、提高系统成像能力提供了理论基础。

In this paper,we present a method to enhance the signal/noise ratio of three-component seismic data by an adaptive polarization filter.To achieve this aim,the matrix of spectrum density is constructed,after the introduction of multi-taper method,to compute th...

本文在引入多窗谱分析方法的基础上，通过对谱密度矩阵特征问题的求解提取三分量地震记录的偏振参数，实现频率域偏振分析；根据所求得的偏振参数以及随机噪声和有效信号的偏振特性差异，设计相应的自适应滤波器，通过该滤波器的滤波作用，最终实现压制随机噪声的目的。

The process of convergence is to use the information of the time dimension. For the low signal noise ratio problem, detection of target in a single frame image is difficult, and the method is excellent.

考虑把点目标跟踪预测的过程视为是函数近似的过程，这是一个病态问题，可以用正则化理论来解决。

It has been shown that the system possess high sensitivity and signal—noise ratio.

用系统获得的实验结果与理论分析的结果符合的很好。

The relationship between output signal noise ratio and jamming power is given out.

详细分析干扰噪声图像的影响，并给出输出信噪比与干扰功率之间的关系，为实施对SAR的对抗提供理论依据。

In the end, the photoelectric preamplifier's output Signal Noise Ratio and the laser frequency stability are tested.

最后，对光电前放输出信噪比和稳频精度进行了测试。

High signal/noise ratio, high resolution and high fidelity are the objectives seismologists have been seeking for.

高信噪比、高分辨率和高保真度简称&三高&，一直是地震数据所追求的目标。

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。