摘要
针对ZTR12地质雷达采用通讯电缆的方式进行多路模拟信号传输,存在信号受外界干扰严重,信号间容易相互串扰,进而导致信号波动、信噪比降低,在井下复杂的环境中,信号质量更差的问题,提出了一种基于以太网的数据传输方法,该方法采用双绞线传输数字信号的方式进行数据传输。利用标准差波动和相似性夹角对采集数据进行稳定性分析,结果表明:该方法在抗干扰能力和信号稳定性方面有较大提高,此外,轻柔的双绞线替代沉重的通讯电缆使设备更加轻便。
As ZTR12 GPR uses communication cable to realize multi-channel analog signal transmission,the interference between signals cannot be prevented. Especially in the complex mine environment, signal is vulnerable to outside interference,causing instability and low SNR. This paper proposes a data transmission method based on Ethernet,using twisted-pair cable to transmit digital signal. The standard deviation＇s volatility and similarity＇s angle are applied to data stability analysis. The results show anti- interference ability and signal stability are greatly improved. Moreover, the replacement heavy communication cable with soft and light twisted pair makes ZTR12 GPR more portable.
出处
《煤炭工程》
北大核心
2016年第10期113-116,共4页
Coal Engineering
基金
"十二五"国家重大科学仪器设备开发专项资助项目(2012YQ030126)
黔科合GZ字〔2015〕3020
