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高性能罗兰-C接收天线设计
2022年电子技术应用第4期
高久翔1,原艳宁1,师振盛2,席晓莉1
1.西安理工大学 自动化与信息工程学院,陕西 西安710048;2.西安交通大学 信息与通信工程学院,陕西 西安710049
摘要: 为了提高罗兰-C磁天线的接收能力,设计了一种顺接串联多层线圈的磁天线。理论推导了顺接串联多层线圈磁天线的信噪比和灵敏度,最终设计的磁天线大小为150 mm×150 mm。远场测试接收到了较高信噪比的罗兰-C信号,在相同信号调理电路条件下,与单层单组线圈的磁天线相比,顺接串联多层线圈的磁天线接收到3.47 V的电压信号,且信噪比高达30.87 dB,灵敏度和信噪比分别提高了82.42%和63.20%。顺接串联多层线圈磁天线提高了罗兰-C磁天线的灵敏度和信噪比,对罗兰-C系统在定位方面的应用具有重要意义。
中图分类号: TN821;TM937
文献标识码: A
DOI:10.16157/j.issn.0258-7998.211820
中文引用格式: 高久翔,原艳宁,师振盛,等. 高性能罗兰-C接收天线设计[J].电子技术应用,2022,48(4):132-136.
英文引用格式: Gao Jiuxiang,Yuan Yanning,Shi Zhensheng,et al. Design of Loran-C receiving antenna with high-performance[J]. Application of Electronic Technique,2022,48(4):132-136.
Design of Loran-C receiving antenna with high-performance
Gao Jiuxiang1,Yuan Yanning1,Shi Zhensheng2,Xi Xiaoli1
1.School of Automation and Information Engineering,Xi′an University of Technology,Xi′an 710048,China; 2.School of Information and Communications Engineering,Xi′an Jiaotong University,Xi′an 710049,China
Abstract: A kind of magnetic antenna with order series multi-layer coils is made for improving the receiving ability of the Loran-C magnetic antenna. The signal-to-noise ratio and sensitivity of order series multi-layer coil magnetic antenna are derived theoretically. Final designed magnetic antenna size is 150 mm×150 mm. It can receive the completed and clear Loran-C signal in far-field test. Under the same signal conditioning circuit conditions, compared with single layer and single group of coils magnetic antenna, order series multi-layer coils magnetic antenna receives a voltage signal of 3.47 V, and the signal-to-noise ratio is 30.87 dB. The sensitivity and signal-to-noise ratio are improved 82.42% and 63.20% respectively. The proposed method improves the receiving performance of the Loran-C magnetic antenna, which is of great significance to the application of the Loran-C system in positioning.
Key words : Loran-C;magnetic antennas;sensitivity;signal-to-noise ratio

0 引言

    罗兰-C是一种陆基远程无线电导航系统,工作频段为90~110 kHz[1-5]磁天线相对于电天线具有体积小、灵敏度高、抗干扰能力强[6]以及便于安装和携带等优点,常被用来接收罗兰-C信号。

    目前罗兰-C磁天线的研究主要在方向性优化[7]、数字移相算法[8]以及有源接收技术[9-10]等方面,这些研究对罗兰-C磁天线的接收性能提出了更高的要求,因此需制作灵敏度和信噪比高的磁天线来改善罗兰-C接收天线的性能。本文研制了一种顺接串联的多层线圈的罗兰-C磁天线,能显著提高接收灵敏度又能提升其信噪比,这极大地提高了罗兰-C磁天线的稳定性以及扩大了其应用范围,具有很重要的实际应用价值。




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作者信息:

高久翔1,原艳宁1,师振盛2,席晓莉1

(1.西安理工大学  自动化与信息工程学院,陕西 西安710048;2.西安交通大学 信息与通信工程学院,陕西 西安710049)




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