摘要
针对LTE-R专用测试仪器体积大、可操作性和便携性差、需要车载供电等问题,利用软件无线电技术设计一款便携式LTE-R测试设备。通过混频电路、射频开关电路、高速ADC采样电路和ARM控制显示系统,实现从射频信号预处理、数据采集、传输到显示、存储。该便携式LTE-R测试设备结合软件无线电技术和嵌入式系统技术,最终实现了平板电脑尺寸的便携效果,具有良好的可操作性及便携性。经朔黄线LTE-R覆盖测试分析和SINR测试统计分析证明,该便携式LTE-R测试设备满足实际测量需要,有效提高了现场施工测量效率。
According to the problem of large volume, poor operability and portability, requiring vehicle power supply of theLTE-R specific testing instrument, a portable LTE-R testing equipment using software radio technology was designed, which realizedRF signal pre-processing, data acquisition, transmission, storage and display with the mixer circuit, RF switch circuit, high-speedADC sampling circuit and ARM control and display system. Combining software radio technology and embedded system technology,the portable LTE-R testing equipment finally achieved the effect of the size of the portable tablet computer with operability and goodportability. The LTE-R coverage testing analysis and SINR testing analysis of Shuo-Huang line showed'that the portable LTE-R testingequipment met the demand of actual measurement, and the efficiency in the field of construction measurement could be effectivelyimproved.
作者
白国岩
BAI Guoyan(Electrical Engineering Co., Ltd. of China Railway 16th Bureau Group, Beijing 100018, China)
出处
《机车电传动》
北大核心
2018年第2期115-118,共4页
Electric Drive for Locomotives
基金
国家自然科学基金应急管理项目(61650207)
关键词
LTE-R
软件无线电
无线列调
混频
测试仪器
LTE-R
software radio
radio sequence modulation
mixing frequency
test instrument