| 舰载式高精度水下定位系统 |
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| 引用本文： | 庞雷,李斌. 舰载式高精度水下定位系统[J]. 电声技术, 2007, 31(3): 63-65 |
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| 作者姓名： | 庞雷 李斌 |
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| 作者单位： | 西北工业大学,航海学院,陕西,西安,710072;西北工业大学,航海学院,陕西,西安,710072 |
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| 摘 要： | 阐述了水下二次定位系统的原理和特点,研究了水下应答器定位系统中所涉及的高精度测距技术。详细介绍了水下应答器收发信号形式,提出了利用线性调频信号和码分多址扩频通信的数据包提高定位精度的理论,结合DSP处理平台,全面论述了系统设计思想,解决了低信噪比条件下多目标信号检测的关键问题。
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| 关 键 词： | 线性调频 脉冲压缩 码分多址 DSP 定位 |
| 文章编号： | 1002-8684(2007)03-0063-03 |
| 修稿时间： | 2006-11-18 |
Movable and Highly Precise Acoustic Positioning System |
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| PANG Lei,LI Bin. Movable and Highly Precise Acoustic Positioning System[J]. Audio Engineering, 2007, 31(3): 63-65 |
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| Authors: | PANG Lei LI Bin |
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| Abstract: | The principles and characteristics of the underwater position system are discussed,and the key technologies in the highly precise telemetry are studied.The forms of the transponder's signals are introduced.The data packet of the LFM(Linear Frequency Modulation) and CDMA are proposed.Basing on the DSP processing platform,the system design conceptions are explained.The key technology solutions on the detection of the low SNR signals and multi-targets are given. |
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| Keywords: | LFM pulse compression CDMA DSP position |
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