查询词典 scatterers

Both the wave number and the absorbing coefficient of the scatterers are reconstructed.

介绍了吸收型散射体的Rytov二阶近似重建演算法，重建了散射体内部的波数和吸收系数。

The variation rule of the Doppler frequency of a target scatterers is analyzied under the two situations mentioned above.

本文分析了在上述两种情况下，散射点回波信号多普勒的变化规律和信号模型。

The first step is the coarse range alignment [1], which places the scatterers in their respective range cells.

第一步是粗1定范围，把各自不同散射体细胞。

The two antenna interferometric processing is used to detect scatterers with the 3-D motion.

利用双通道干涉对消处理，检测出存在三维运动的散射点，并对其信号相位进行估计。

The number and distribution of intense scatterers in radar returns can be estimated.

提出了极化域线性积累滤波的思路以提高雷达接收信号的信杂比，在此基础上利用宽带波形固有的径向高分辨力对目标进行一维距离成像，估计出回波中强散射点的数量和分布，通过对不同径向分辨单元内的强散射点进行整体检测，可进一步有效地提高信杂比，改善雷达的检测性能。

The reconstruction algorithm is similar to one for phase scatterers, but the computation of the direct scattering is different, because the attenuation must be calculated.

这种散射体的重建与纯位相型散射体的重建一样，不同的只是在计算正散射时考虑了吸收的影响。

Scatterers can be detected and recognized in the time-frequency domain.

特别是利用时频分析方法可以用来研究每个散射元的时变特性及其时频特性，这将有利于散射元或目标的识别。

In this paper, a reconstruction algorithm of acoustical tomography is presented for absorbing scatterers based on the second-order Rytov transform perturbation approximation.

文中详细讨论了Rytov二阶近似下的声逆散射微扰论公式，并考察了它的适用范围。

Simulations show that these two methods can be applied to the scatterers extraction from the stealthy objects whose main scattering centers are formed by the edge diffraction.

仿真实验表明，该文的两种方法均适用于以边缘绕射等为主要散射源的隐身目标。

In this paper, the Monte Carlo method is used to calculate the dose distribution in a60Co container inspection hall with and without scatterers.

本文应用蒙特卡罗方法计算了无模拟检测物和有模拟检测物情况下60Co集装箱检测大厅内的辐射剂量率分布。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。