【摘要】 为了提高矿震台网的运行率,保障地震数据的连续率、完整率,对阜新矿震台网的信道进行了测试,主要包括制作传播路径地形剖面图以了解信道传输的视通条件、对信道传播损耗的理论计算及功率储备的测量、进行接收场强及背景干扰的测试以确定传输频点。结果显示,阜新矿震台网无线传输信道的场强在50~73 dB之间,能够保证无线信号传输质量,符合遥测台网建设技术规范要求。更多还原

【Abstract】 FM wireless transmission at the mine seismic network construction,data transmission channel testing is the key link.It is related to run rate of the mine seismic network,continuous rate and full rate of seismic data.The testing channel are mainly including the production of propagation path terrain profile in order to understand the channel transmission vision conditions,the channel propagation loss calculation and the power reserves measurement,the receiving field strength and background interference tests to determine the transmission frequency.Through the channel testing of Fuxin mine seismic network,wireless transmission channel of the field strength is between the 50 to 73 dB,ensuring wireless signal transmission quality,in line with telemetry network construction technical requirements.更多还原