舰船电子工程2025，Vol.45Issue(1)：177-181,5.DOI:10.3969/j.issn.1672-9730.2025.01.035
基于水下仪器的噪声去除方法研究
Research on Noise Removal Method Based on Underwater Instruments
庞云飞 1任勇峰 1赵逢锦1
作者信息
- 1. 中北大学电子测试技术国家重点实验室 太原 030051
- 折叠
摘要
Abstract
Noise suppression is an important problem to improve the detection ability of underwater targets.In order to reduce the influence of the switching noise of the instrument on the measurement signal in the underwater test,the switching noise is fil-tered out by filtering.The article analyzes the reasons for the sharp increase of the signal channel ripple when the underwater instru-ment is connected to the test system.Through theoretical analysis and experimental simulation,the low-frequency signal is filtered,and the imitation median filter method and the sliding window method are combined to modulate the low-frequency signal.The test results show that the ripple is effectively suppressed,the interference of the instrument switch noise to the test low-frequency signal is significantly reduced,and the output is close to the real data,with an error of only 5.3×10-4,and the offset of the processed data on the timeline is only 200 μs,which highly restores the real data and greatly improves the accuracy of the test.关键词
中值滤波/图像去噪/开关噪声/纹波Key words
median filtering/image denoising/switching noise/ripple分类
信息技术与安全科学引用本文复制引用
庞云飞,任勇峰,赵逢锦..基于水下仪器的噪声去除方法研究[J].舰船电子工程,2025,45(1):177-181,5.
