Correct estimation of signal and effective elimination of strong noise are the kernel of reducing intensity and improving efficiency of noise attenuation. 准确估计信号、有效衰减强噪声是降低去噪强度、提高去噪效率的核心。
These methods are effective to noise attenuation, but they bring some falseseismic events and attenuate signal energy at the place of high amplitude noises. 这些方法对消除噪声有一定的效果,但同时也产生一些假同相轴,并衰减强振幅噪声处的信号能量。
The effective attenuation efficient for the object components is evaluated simulating X-photon transport process in radiographic system using Monte Carlo method. 用MonteCarlo方法对闪光照相系统的客体各种组成材料的有效吸收系数进行数值模拟;
Effective thickness for wall attenuation is given and the wall scattering effect is roughly estimated. 文中给出了室壁的有效衰减厚度,对室壁散射效应做了粗略的估计。
Simulation results show that these formulae are effective and the resulting PID settings have good compromise between disturbance attenuation and robustness. 仿真结果表明本文的PID整定公式有效,且控制器具有良好的抗干扰能力和频域鲁棒性。
Effective Attenuation Coefficient of the Airborne Laser Depth Sounder 机载激光测深的有效衰减系数
Single wavelength collimation transmittance experiment is designed and conducted, with total effective attenuation coefficient of tissue phantoms being obtained. 设计单波长准直光透射实验并通过实验测量组织模拟样品的总衰减系数;
Analysis of Underwater Target Signal and Its Effective Attenuation Coefficient 水下目标信号特性及其有效衰减系数分析
To implement this method, an originally developed multi& layered medium model of ultrasonic propagation has been modified to allow for different attenuation coefficients of different layers, and some effective methods of estimating attenuation and reflection coefficients are developed. 为实现该法,在以前模型的基础上建立了各层衰减系数不同的分层介质超声传播模型,形成了估计各层衰减系数与各界面反射系数的有效方法。
The effective attenuation efficient and its distribution on the image are obtained regardless of scattered effect. The distribution shape is similar to the CT number profile in medical CT reconstruction. 求出不考虑散射而仅受能谱影响的有效吸收系数及其空间分布,发现该分布类似于医学CT数的分布规律,在高光程数对应的位置上该吸收系数较低;
GD model combined the effective attenuation coefficient as axial exponential attenuation factor. 该模型还结合了扩散近似中的有效衰减系数作为轴向指数衰减因子。
According to the characteristics of the multiples, the paper proposes a method of frequency separation, which is effective in non-hyperbolic multiple attenuation. 针对此区多次波的特点,提出一种频率分离的方法将数据分离后再进行不同处理,可以很好地解决多次波的压制并突出有效波;
Both Atorvastatin and Irbesartan have effective impact on attenuation of pressure overload induced left ventricular hypertrophy. 阿托伐他汀及伊贝沙坦均能有效缓解压力负荷所致的左室肥厚。
At the same time, double blocking mass at double corner interfaces are also effective for attenuation of structure-borne sound transmission just as they behave in single-corner structures. 同时,附加在双转角结构中的阻振质量仍然能保持其在单转角结构中的阻波特性,在高频区对结构声的传递有较好的抑制效果。
The light yield, the total light collection efficiency, the effective attenuation length and the angular dependent response of the tank are all good enough for the long baseline neutrino oscillation experiment, and can be further improved. 论证了该量能器的光产额,总的探测效率,水的有效衰减长度和粒子入射角度依赖关系都能很好的满足极长基线中微子振荡实验。
Considering the advantages of sliding mode variable-structure control, a sliding mode adaptive regulation and tracking algorithms are proposed, which can perform effective attenuation of bounded disturbance and implement real-time identification of inertia moment. 考虑到滑模变结构控制的优点,首先提出了滑模自适应姿态调节和跟踪控制算法,能够对有界干扰进行有效抑制,并实现了对转动惯量的实时辨识。
The experimental results show that the designed semi-active tuned frequency water silencer is effective to the pipeline pressure pulsation attenuation, the water silencer make good results, so it verifies the design feasible. 实验结果表明:所设计的可变频充液管路消声器对管路压力脉动的衰减是有效的,取得了良好的消声效果,本文的设计方案是可行的。
The engine connected to the car body by mount, engine is the source of vibration, body is the target of vibration isolation, which requires engine mount effective absorb or attenuation vibration. 发动机是通过悬置与汽车车身相连接的,发动机是振动源,车身是防振对象,这就要求发动机悬置能够有效地吸收或衰减振动。