| 基于短时傅立叶变换的鱼雷自导信号参数实时估计及应用 |
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| 引用本文： | 宫国田,李鹏,周浩,唐恒. 基于短时傅立叶变换的鱼雷自导信号参数实时估计及应用[J]. 鱼雷技术, 2010, 18(1): 26-30 |
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| 作者姓名： | 宫国田 李鹏 周浩 唐恒 |
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| 作者单位： | 1. 中国人民解放军91439部队,辽宁,大连,116041
2. 海军工程大学,兵器工程系,湖北,武汉,430033 |
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| 摘 要： | 采用商用成熟（COTS）技术途径开发军用设备是一个重要发展方向。该文提出了COTS产品在声靶系统对鱼雷自导信号参数实时估计中的应用方案，采用短时傅立叶变换（STFT）实现对鱼雷自导信号脉冲载频、脉冲到达时刻、脉冲宽度和脉冲问隔的实时估计。在鱼雷自导信号参数高精度估计的基础上，利用中频直接采样有效减小了信号处理的数据量。通过工业D／A板试验证明，该应用方案达到了设计功能和性能指标要求，并且降低了开发成本，缩短了项目的开发周期，保证了应用的灵活性和二次开发性。
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| 关 键 词： | 鱼雷 短时傅立叶变换（STFT） 实时测频 脉冲到达时刻 脉冲载频 脉冲宽度 脉冲间隔 信号处理 商用成熟技术（COTS） |
Real-time Parameter Estimation of Torpedo Homing Signal Based on STFT and its Application |
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| GONG Guo-tian,LI Peng,ZHOU Hao,TANG Heng. Real-time Parameter Estimation of Torpedo Homing Signal Based on STFT and its Application[J]. Torpedo Technology, 2010, 18(1): 26-30 |
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| Authors: | GONG Guo-tian LI Peng ZHOU Hao TANG Heng |
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| Affiliation: | 1. 91439 Unit, The People＇s Liberation Army of China, Dalian 116041, China; 2. Department of Weaponry Engineering, Naval University of Engineering, Wuhan 430033, China) |
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| Abstract: | We propose a scheme of torpedo homing signal parameter real-time estimation of acoustic target by adopting the commercial off-the-shelf（COTS） technology, and realize the real-time estimations of pulse carrier frequency, pulse arrival time, pulse width and pulse interval for torpedo homing signal by using short time Fourier transform（STFY）. The scheme decreases the data quantity of signal processing, and achieves precise estimation of torpedo homing signal parameter. The function and performance of this scheme are verified by commercial D/A board test. This scheme is developed with lower cost and shorter period, and is easy to be further developed. |
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| Keywords: | torpedo short time Fourier transform （STFT） real-time frequency measurement pulse arrival time pulse carrier frequency pulse width pulse interval signal processing commercial off-the-shelf（COTS） |
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