摘要
研究水坝溃坝风险的准确检测问题,水坝溃坝隐患区域转换的实时回波信号,由于受到外界阻挡和干扰,引起雨衰,使信号强度发生衰减,造成检测回波监测信号误差较大。传统的检测方法都是通过隐患区域转换的回波信号大小进行判断的,一旦雨衰大幅降低了回波信号的强度,远程雷达接收端将接受不到回波信息,造成隐患检测准确度不高。为此提出回波信号雨衰补偿的水利工程安全隐患检测算法,通过判断回波信号的强度,计算反馈的隐患区域雨衰系数的大小,并根据雨衰值动态调整信号的补偿量,对回波信号雨衰进行补偿。实验表明,改方法能够有效减小了雨衰对回波信号质量的影响,准确检测水利工程中的安全隐患。
Study the accurate detection of dam dam risk. Dam hidden danger area of conversion of dam real-time echo signal when it, echo signal will happen rain failure, make signal diminished. The traditional test methods is through the hidden danger area of the conversion of the echo signal size of judgment, once the rain failure sharply re- duced echo signal strength, and remote radar receiver will accept less than the echo information, cause hidden trouble detecting accuracy is not high. Therefore put forward based on the failure of the echo signal compensation of water conservancy safe hidden trouble detection algorithm, through the judgement of the echo signal strength, the calcula- tion of the hidden trouble of the feedback of the size of the regional rain failure signals, and according to the rain fail- ure value dynamic adjustment of signal compensation quantity, the echo signal rain failure to compensate. Experi- ments show that the method can effectively reduce to rain failure the influence on the quality of the echo signal, the accurate detection of water conservancy project of security hidden danger.
出处
《计算机仿真》
CSCD
北大核心
2012年第11期194-197,共4页
Computer Simulation
基金
浙江省教育厅项目(Y200909470)
关键词
水坝隐患
回波信号
雨衰补偿
Dam hidden trouble
Echo signal
The rain failure compensation
