In this paper the physical acoustic method ( the Kirchhoff's approximation) is extended to treat the scattering of a nonrigid surface in order to estimate the target strength of tar-gets with absorbing coatings.

The sound-absorbing materials not only could reduce target strength of submarines, also have the isolation and sound insulation effects. The sound-absorbing materials played a more important role in improving the stealth of submarine.

吸声材料不仅能够降低潜艇目标强度，还具有隔振和隔声的作用，对于提高潜艇隐身性具有不可忽视的作用。

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There are many merits for focused liquid-filled spherical reflectors: email geometric size, high target strength, excellent frequency property, homogeneous directivity, low cost and easily placed in the sea.

充液聚焦球形反射体具有几何尺寸小、目标强度大、频率特性好、方向性均匀、成本低、海上布设方便等优点，是目前标准反射体中较好的一种。

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To reduce the acoustic target strength of submarines and other underwater objects, a single layer of glass fibrous reinforced composites ( GFRP) was replaced by a sandwich of the material.

为了降低水下航行器和物体表面的声反射和声辐射强度，可以采用玻璃钢夹层结构代替单层玻璃钢结构。

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An integral representation is derived for calculation of the form function or target strength. the resulting scattered field consists of three parts: ( 1) the scattered field from the object in full space;

导出了计算形态函数或目标强度的积分表示式.所产生的散射场由三部分组成：（1）不存在界面时目标的散射场；

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In this paper, the means to reduce mine's target strength ( TS) and its effects to reduce sonar detection distance are also analyzed, and it is proved an effective method.

讨论了改变水雷外形以降低其目标强度（TS）途径，分析了几种不同水雷外形对声纳探测距离的影响，认为改变水雷外形是降低声探测距离的有效手段。

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Through the modeling and simulating, the pattern of scattering echo and the relation between target strength and azimuthal angle are obtained when the source and receiver are separated.

通过建模与仿真实验，得出了椭球目标在双基地条件下，散射回波的空间分布，以及在不同分置角时，散射强度随目标姿态角的变化关系曲线。

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In this paper, the target strength ( TS) of mines lying on the seabed was predicted by use of the physical acoustics method and the planar element method.

文章利用板块元方法和物理声学方法对界面附近目标的目标强度计算理论预报沉底水雷的目标强度。

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One difficult problem is how to calculate target strength when you analyze the effect of an active homing torpedo attack on a submarine or a ship at sea.

分析主动声自导鱼雷攻击潜艇或水面舰艇的作战效果时，目标强度的求取是一个比较困难的问题。

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With the development of acoustic stealth technology, the noise and target strength of underwater target significantly reduced, and the sonar operating range is decreasing accordingly.

现阶段由于声隐身技术的发展，水下目标的辐射噪声和目标强度都大幅降低，声纳的作用距离也随之下降。

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We has been buit the mathematical relationship in target strength reduction of tiling for submarine and reducing range of sonar.

建立了敷瓦潜艇目标强度降低与声呐作用距离减小的数学表达式。

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Penetration is calculated in accordance with quasi-steady process, and the effects of target strength and break-up of jets are also considered.

侵彻按准定常过程进行计算，同时考虑了靶板强度及射流断裂的影响。

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The result shows that the target strength formula derived in this paper is consistent with that of the rotational ellipsoid.

理论上推导出的水下前向散射目标强度的计算公式与旋转椭球体目标强度的经验公式一致。

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Target strength and Echo-to-reverberation ratio of bottom mines

沉底水雷目标强度与回声信混比

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The target strength and echo-to-reverberation ratio of a buried target in sediment

海底掩埋物的目标强度和回声信混比

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Prediction target strength of mines lying on the seabed

沉底水雷目标强度预报

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Exact measuring target strength of underwater target

准确测量水下目标的目标强度

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Then the target strength is deduced based on the modified Kirchhoff approximation.

然后采用修正的Kirchhoff近似方法计算目标强度。

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Target Strength for Different Kinds of Small Spheres at 3 MH_Z

几种作为参考目标的小球体在3MH Z频率下的目标强度

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The planar element method for computing target strength ( TS) of sonar

声呐目标强度（TS）计算的板块元方法

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A Method of Averaging Fish Target Strength ( TS) in Three Dimensions

单体鱼目标散射强度（TS）的三维平均方法

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