| 双基地目标强度及回波时域特性研究 |
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| 引用本文： | 彭水,张明敏,程广利.双基地目标强度及回波时域特性研究[J].舰船电子工程,2009,29(9):175-177. |
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| 作者姓名： | 彭水 张明敏 程广利 |
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| 作者单位： | 海军工程大学电子工程学院,武汉,430033 |
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| 摘 要： | 利用3DSMAX软件建立的标准潜艇几何模型，采用板块元法对标准潜艇的双基地回波散射特性进行计算，并通过实验验证了模型的正确性。讨论了在不同分置角下目标强度与姿态角的变化关系，利用频域间接法计算得到了单频脉冲下的目标回波。通过仿真与实验结果对比分析，验证了双基地的回波展宽计算公式。结果表明，在镜像反射的位置上。散射回波最强；回波信号的包络是不规则的，持续时间被展宽，展宽大小与姿态角和分置角有关。
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| 关 键 词： | 双基地 目标强度 回波 |
Analysis of Target Strength and Echo in Time Domain for Bistatic Sonar |
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| Peng Shui,Zhang Mingmin,Cheng Guangli.Analysis of Target Strength and Echo in Time Domain for Bistatic Sonar[J].Ship Electronic Engineering,2009,29(9):175-177. |
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| Authors: | Peng Shui Zhang Mingmin Cheng Guangli |
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| Institution: | Peng Shui Zhang Mingmin Cheng Guangli (College of Electronic Engineering, Naval Univ. of Engineering, Wuhan 430033) |
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| Abstract: | The model of Benchmark Target Strength Simulation Submarine（BeTSSi-Sub） setup by 3DS MAX is applied to calculate the echo characteristics of BeTSSi-Sub for bistatic sonar. And the model is validated correct with the experimental result. The relation between target strength and azimuthal angle is discussed. The echo in time domain for monochromatic pulse is obtained from spectrum througth IFFT. The expresstion to calculate the time of echo spreaded is given. The simulation results show that in the specular direction the target strength come to a head. The waveforrn of echo is anomalistic, and the time spreaded lies on azimuthal angle and bistatic angle. |
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| Keywords: | bistatic target strength echo |
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