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| 超长波磁场接收天线磁致伸缩噪声研究 | |
| 引用本文： | 张建伟,谢慧,周经国.超长波磁场接收天线磁致伸缩噪声研究[J].海军工程大学学报,2009,21(2). |
| 作者姓名： | 张建伟 谢慧 周经国 |
| 作者单位： | 1. 华中科技大学,光电子科学与工程学院,武汉,430074;海军工程大学,科研部,武汉,430033 2. 海军工程大学,电子工程学院,武汉,430033 3. 海军司令部,通信部,北京,100841 |
| 基金项目： | 国家高技术研究发展计划(863计划) |
| 摘 要： | 研究了海水中超长波拖曳磁场接收天线在地磁场中产生磁致伸缩噪声的机理,导出了计算磁场拖曳天线磁致伸缩噪声功率谱的理论公式,分析了天线灵敏度、电缆特性、地磁场等因素对磁致伸缩噪声的影响.用理论公式对拖曳天线磁致伸缩噪声电压进行了实例计算.试验测试结果表明,计算曲线与测量曲线基本一致,证明了理论公式的正确性. |
| 关 键 词： | 水下通信 超长波 全向接收天线 磁致伸缩噪声 |
On magnetostrictive noise of super low frequency H-field receiving antenna |
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| ZHANG Jian-wei,XIE Hui,ZHOU Jing-guo.On magnetostrictive noise of super low frequency H-field receiving antenna[J].Journal of Naval University of Engineering,2009,21(2). | |
| Authors: | ZHANG Jian-wei XIE Hui ZHOU Jing-guo |
| Institution: | 1.Inst.of Optoelectronic Science and Engineering;Huazhong Univ.of Science and Technology;Wuhan 430074;China;2.Office of Research and Development;Naval Univ.of Engineering;Wuhan 430033;3.College of Electronic Engineering;4.Communication Dept.;Navy Headquarters;Beijing 100841;China |
| Abstract: | An analysis was made of the mechenics of magnetostrictive noise generated by an underwater super low frequency towed H-field receiving antenna in the geomagnetic field.The theoretical formulas were deduced for calculating the power spectrum of the magnetostrictive noise for both the submarine towed electrode-pair antenna and magnetic field antenna.The research dealt with the various contributing factors,such as antenna sensitivity profile,cable properties,geomagnetic field.An example for calculation was giv... |
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