本文概述军用飞行目标对微波雷达的散射特性，讨论了目标的高频散射机理，雷达截面(RCS)分析方法及减缩途径，以及低rcs目标探测技术等。
Target characteristics and high frequency scattering mechanism are summarized. RCS analysis methods, RCS reduction approaches and low RCS target detection techniques are discussed.
就图7B的水平散射模式而言，如图7D所示，该部分听众48所接收到的高频辐射和其它部分听众50所接收到的高频辐射为类似水平。
With the horizontal dispersion pattern of FIG. 7B, as shown in FIG. 7D, the portions 48 of the audience receive similar levels of high frequency radiation as other portions 50 of the audience.
复射线理论为高频电磁波在各种复杂环境中的传播和散射提供了一种简便而有效的分析方法。
The complex ray theory provides a simple and useful approach to analyze the propagation and scattering of HF EM waves in various complicated environments.
到底此现象是因为高频率超音波可较好的解析散射子的形状或其他因素，至今仍不太清楚。
Whether this is due to shape factor of scatterers corresponding to the applied high frequency remain unclear to date.
在不同波段不同极化下，应用图形电磁计算(GRECO)法计算了某模型的高频雷达散射截面(RCS)。
At different wave band and polarization, the high frequency RCS of a model was computed with the graphical electromagnetic computing (GRECO) method.
采用相对相位叠加的高频近似方法，处理天线阵高频区散射的计算，大幅减少了计算量。
The amount of calculation is greatly decreased over high frequency zones by using high-frequency approximation method.
图形电磁计算(GRECO)方法是计算复杂目标高频区雷达散射截面(RCS)的有效方法之一。
Graphical Electromagnetic computing (GRECO) is one of the valuable method for computing the radar cross section (RCS) of complex radar target in high frequency region.
图形电磁计算(GRECO)方法是计算复杂目标高频区雷达散射截面(RCS)的有效方法之一。
Graphical Electromagnetic computing (GRECO) is one of the valuable methods for computing the radar cross section (RCS) of complex radar target in high frequency region.
针对水下目标高频近场散射特性，提出了一种求解水下复杂目标散射声场的方法。
A method to solve the scattering acoustic field of complex target was proposed for the near-field scattering characteristics of an underwater target in high-frequency.
在第一环行器的第三端与耦合器间还可接入一个或一个以上受激布里渊散射装置以产生更高频的微波信号。
One or one more stimulated Brillouin scattering devices are connected between third end of first circulator and coupler for producing more high-frequency microwave signal.
利用极化理论和高频方法对有限长理想导电圆柱后向散射场的极化特性进行分析和计算。
The polarization characteristics for the fields scattered by finite length perfectly conducted cylinder are presented in this peper, using the theory of radar polarization and high frequence analysis.
在高频区，复杂目标的电磁散射表现为多散射中心相干迭加的结果。
In high frequency region, the response of an extended target is well approximated as the sum of responses from individual scattering centers.
论文研究了一维、二维导体海面与其上方目标高频复合电磁散射问题。
The characteristics of high-frequency composite electromagnetic backscattering from a target above one- or two-dimensional conductor sea surfaces are investigated.
高频返回散射电离图中最高观测频率、斜距的日变化规律；
Maximum observed frequency in HF backscatter ionogram and day variblelaw of slope distance.
结合等效射线管模型和物理光学法实现了复杂目标高频电磁波多次散射高效且精确的数值求解。
Using physical optics to calculate single scattering, and using equivalent ray tubes to calculate multiple scattering, we can get the numerical results more efficiently and accurately.
频域近红外光谱系统利用一个高频正弦信号对光源进行调制，从而在大脑这类强散射介质中形成一种漫射光子密度波。
The frequency-domain NIRS instruments modulate the light with a RF sine wave, which generates diffuse photon density wave (DPDW) in turbid tissue like brain.
通常认为地震波高频衰减的物理机制主要是滞弹性的吸收，本文通过如下三方面的研究认为地震波高频衰减的物理机制主要是弹性的微观多次散射波的相互干涉。
In this paper, I present three studies on high-frequency seismic attenuation and propose that the physical mechanism results from the interference of elastic microscopic multiple scattering waves.
本文通过使用宏观观察、金相分析、断口分析和电子背散射衍射（EBSD）等分析手段对高频焊管焊后弯管开裂的原因进行了分析。
The reason of the Weld Joint Cracking on high frequency welding pipe was investigated by using macroscopic observation, metallographic technology, fracture analysis and EBSD technology.
高频(HF)雷达海洋探测是典型的粗糙面对电波的散射问题。
Detection of ocean surface dynamics with HF radar is a typical problem of wave scattering from a rough surface.
对流层会导致弯曲，管道，散射在超高频、扩大交流的范围大大超出了视觉的地平线。
The troposphere can cause bending, ducting, and scattering at UHF, extending the range of communication significantly beyond the visual horizon.
本文利用高频近似方法与低频数值方法相结合的混合方法计算二维开槽电大目标的散射。
A hybrid technique for calculating the scattering of two-dimensional large bodies with slots is developed by combining high-frequency approximation method with low-frequency numerical method.
数值结果表明利用该形函数计算高频情形下的散射问题具有很高的精度。
Several examples calculating the scattering displacement show that the method used for scattering high-frequency transient wave is effective.
结果高频背向散射系数较声速、声衰减更能反映组织结构的变化，高频超声图像具有高的分辨率。
Results Compared with sound velocity and attenuation, the backscatter coefficient could reflect the structural change of biological tissue. The high frequency ul…
本文还对超高频波段在一些特定区产生的散射增强，用电离层中某些尺寸的不均匀结构的影响给予初步解释。
This enhancement of scattered em waves under special condition of higher frequencies of special zones may be explained by using the influence of the irregular structure of some size in the ionosphere.
猪的出血性淋巴结组织的声散射系数比正常淋巴结组织的小，且随频率的变化而变化，背向散射技术是在高频段进行组织定征的有效手段。
The backscatter coefficient of hemorrhage lymphnode is smaller than that of normal lymphnode and changes with the frequency. The ultrasonic backscatter microscope technique is a useful device…
猪的出血性淋巴结组织的声散射系数比正常淋巴结组织的小，且随频率的变化而变化，背向散射技术是在高频段进行组织定征的有效手段。
The backscatter coefficient of hemorrhage lymphnode is smaller than that of normal lymphnode and changes with the frequency. The ultrasonic backscatter microscope technique is a useful device…
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