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| 使用电场传感器阵列的水下运动目标检测与参数估计 | |
| 引用本文： | 包中华,龚沈光,马珂.使用电场传感器阵列的水下运动目标检测与参数估计[J].海军航空工程学院学报,2012,27(5):530-534. |
| 作者姓名： | 包中华 龚沈光 马珂 |
| 作者单位： | 1. 海军航空工程学院电子信息工程系,山东 烟台 264001 2. 海军工程大学兵器工程系,武汉 430033 3. 海军驻上海地区电子设备军事代表室,上海 200233 |
| 基金项目： | 国防科技重点实验事基金资助（5144407105JB11） |
| 摘 要： | 研究了基于电场传感器阵列的水下运动目标检测与参数估计方法。在背景噪声为高斯白噪声和目标作匀速直线运动的假设下,利用电场传感器阵列获取的船舶水下准静态电场空时特征,通过广义似然比检测和随机搜索寻优算法,可实现对海水中运动船舶的目标检测和参数估计。仿真试验结果表明:在信噪比大于0 dB时能够取得较好的估计精度;在信噪比低至10 dB时仍能有效检测目标。 |
| 关 键 词： | 阵列信号处理 准静态电场 信号检测 参数估计 广义似然比 |
Underwater Moving Target Detection and Parameter Estimation of the Array Electric Field Sensor |
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| BAO Zhong-hu,GONG Shen-guang and MA Ke.Underwater Moving Target Detection and Parameter Estimation of the Array Electric Field Sensor[J].Journal of Naval Aeronautical Engineering Institute,2012,27(5):530-534. | |
| Authors: | BAO Zhong-hu GONG Shen-guang and MA Ke |
| Institution: | 1. Department of Electronic and Information Engineering, NAAU, Yantai Shandong 264001, China; 2. Department of Weaponry Engineering, Naval University of Engineering, Wuhan 430033, China 3. Military Representatives Office of Electron Equipment of NED in Shanghai, Shanghai 200233, China) |
| Abstract: | The detection and parameter estimation of a vessel sailing in underwater based on electric field sensors array were studied. On the assumption of white gaussian noise and target＇s moving constantly and straightly, taking advantage of the space-time feature extracted by the E-field, target detection and parameter estimation could be made by GLRT method and Hooke-Jeeve method. Simulation results showed that the presented method could estimate parameters accurately when the signal noise ratio （SNR） was higher than 0 dB and detect effectually until the SNR was at -10 dB. |
| Keywords: | arraygeneralized likelihoodsignal processing quasi-static electric field signal detection parameter estimation ratio |
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