查询词典 noise

For the multisensor linear discrete time-varying stochastic control systems with the different local dynamic models, using the Kalman filtering method, under the optimal fusion criterion weighted by scalars, the unified and universal optimal information fusion white noise deconvolution estimators are presenced, and for the corresponding time-invariant systems, the steady-state optimal information fusion white noise deconvolution estimators are also presented.

黑龙江大学自动化系，哈尔滨150080中文摘要：对于带不同局部动态模型的多传感器线性离散时变随机控制系统，应用Kalman滤波方法，在按标量加权最优融合准则下，提出了统一和通用的最优信息融合白噪声反卷积估值器，并对定常系统提出了稳态最优信息融合白噪声反卷积估值器。

Secondly, on the basis of the analysis of the spatial-temporal feature of background and infrared targets in infrared sequence, a method for clutter suppression and noise removement based on the association of spatial self-adaptating Two Dimensional Least Mean Square background predict and temperal Higher-Order Cumulant is presented, and its improved version suitable for strong edge rejection and gaussian noise suppression is proposed.

然后针对红外图像序列中弱小目标和背景的空间和时间特性，提出了一种空域改进的自适应二维LMS背景预测和时域高阶累积量相结合的杂波抑制和滤波降噪的预处理方法，理论和实验结果表明，该方法对于抑制强起伏的红外背景杂波和去除高斯噪声的影响非常有效。

The performance of the method is saliently improved in eliminating the noise and preserving the edge of the image when the noise ratio is high.

对不同类型、受不同强度噪声污染图像的去噪实验表明，该方法在不同噪声率下均优于传统的中值滤波法及其一些改进算法，当噪声率较大时其去噪和保边性能得到了显著提高。

Noise radar is similar to pulse compression radar. Samely, noise radar holds both virtues between detecting distance and distance resolution, and holds fine distance ambiguity compression characteristic, in addition, it holds certain anti-detection and anti-disturbing abilities, has attracted abroad attention of academe.

噪声雷达类似于脉冲压缩雷达，同样兼顾作用距离和距离分辨力，具有优良的距离模糊压缩特性，并且有一定的反侦测、抗干扰能力，而受到学术界广泛关注。

Point out among multistage amplifier reducing total noise directioning of coefficient , design one low in noise to setover the circuit, there is certain reference value to the design of the circuit amplifier.

指出在多级放大器中降低总噪声系数的方向，设计出了一种低噪声偏置电路，对电路放大器的设计有一定的参考价值。

Point out among multistage amplifier reducing total noise directioning of coefficient , design one low in noise to setover the circuit, there is certain reference value to the design of the circuit amplifier.

指出在多级放大器中降低总噪声系数的方向，设计出了一种低噪声偏置电路，对电路放大器的设计有一定的参考价值。关键词：电子噪声，电路噪声，噪声计算

A correction method for beam hardening, involving simple operations of the original polychrornatic projection sinogram, was presented based on the analysis of three physics properties implied by beam hardening. Its correction principle was deduced mathematically. A noise reduction method was proposed to suppress the noise enlarged by the harden correction by processing the high-frequency and the low-frequency components in the projection sinogram respectively.

在分析射束硬化现象具有的3个物理属性基础上，提出了一种对原始多色投影正弦图进行操作的硬化校正方法，并从数学上证明了其校正原理，针对该方法带来的噪声放大问题，研究了一种基于高、低频信息分类处理的噪声抑制方法。

In this paper , we try to use wavelet transformation in combining with median filter to process image that contained Guass noise and specking noise at the same time .

尝试利用基于小波变换和中值滤波相结合图像去噪声处理对同时含有高斯噪声和椒盐噪声的图像去噪方法进行了探讨。

This paper advanced a method to eliminate noises on images by wavelet transform and Gauss function ,it could not only eliminate white noise and at the same time is good for eliminating specking noise .

提出了小波变换与高斯函数相结合进行影像去噪的方法，在去除高斯白噪声的同时能够有效去除椒盐噪声。

The experiments indicated that this method could not only eliminate white noise and specking noise effectively and also reserve details on image ,its filtering effect is better than median filtering and wavelet soft thresholding method .

实验表明该方法不仅对高斯噪声和椒盐噪声去噪效果明显，而且保留了影像的细节信息，其滤波效果优于中值滤波和小波软阈值法。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。