| 管道检测中伪随机码技术应用研究 |
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| 引用本文： | 杜军,万健如,杨国文.管道检测中伪随机码技术应用研究[J].管道技术与设备,2005(6):14-16. |
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| 作者姓名： | 杜军 万健如 杨国文 |
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| 作者单位： | 天津大学,天津,300072;中船重工集团707所,天津,300451 |
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| 摘 要： | 将伪随机码技术引入管道检测,通过对伪随机码信号的分析,提出根据接收信号幅频特性中的幅度相差23 dB的频率点及环境的其他参数,计算出管道绝缘电阻的参数,从而确定管道腐蚀状况的一种新方法,经过仿真和实验验证了伪随机码在管道检测中应用的可行性。
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| 关 键 词： | 管道检测 PN码 信号处理 同步 |
| 文章编号： | 1004-9614（2005）06-0014-03 |
| 收稿时间： | 2005-06-21 |
| 修稿时间： | 2005-07-08 |
Research of the Pseudo Noise Code in Pipeline's Detection |
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| DU jun,WAN jian-ru,YANG Guo-wen.Research of the Pseudo Noise Code in Pipeline's Detection[J].Pipeline Technique and Equipment,2005(6):14-16. |
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| Authors: | DU jun WAN jian-ru YANG Guo-wen |
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| Institution: | 1 .Tianjin University, Tianjin 300072, China; 2. CSIC 707 Institute, Tianjin 300451, China |
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| Abstract: | In the situation of nondestructive pipes,a new method was presented in this paper.The technique of pseudo noise code was introduced.Through the change of pseudo noise code in the course of receiving and other signals based on detection conditions,we can analyze the status of underground lines.The principle of this system was analyzed and was simulated.The result shows that the design is reasonable. |
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| Keywords: | pipeline's detection pseudo noise code signal process synchronization |
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