YDT-3型无线电波透视仪器数据分析对比
Analysis and Comparison of Data from YDT-3 Radio Wave Perspective Instrument

我国已开展了多频无线电波透视技术的研究，并在研究上取得了重大的突破和成就。YDT-3型坑透仪是目前最新的多频透视仪器之一，其工作频段主要有88 KHz、158 KHz、365 KHz。该设备一次探测能获取大量场强数据，并对其进行数据处理与解释。为了提高数据的利用率进而在数据处理时提高探测精度，需要对海量数据进行分类并作对比分析。根据YDT-3型坑透仪探测目标地质体得到的数据，将其分为平均值、中位数、最大值和最小值这四种数据，分析并总结四种数据的特点。在安徽理工大学西教学楼以及刘庄矿某工作面探测实例对比结果表明：平均值和最大值所呈现出的效果较好，最小值所呈现出的效果最差，中位数在样本分布均匀或者样本数足够的情况下，才能获取良好的数据。
The research of multifrequency radio wave perspective technology has been carried out in our country, and great breakthroughs and achievements have been made in the research. YDT-3 pit penetration instrument is one of the latest multi-frequency perspective instruments, and its operating frequency bands are mainly 88 KHz, 158 KHz, and 365 KHz. The device can obtain a large amount of field intensity data at one time, and process and interpret the data. In order to improve the utilization rate of data and improve the detection accuracy in data processing, it is necessary to classify and make a comparative analysis of massive data. According to the data obtained by the YDT-3 pit penetration instrument, the data is divided into four kinds: average, median, maximum and minimum, and the characteristics of the four kinds of data are analyzed and summarized. The comparison of detection cases in the West Teaching Building of Anhui University of Science and Technology and a working face in Liuzhuang Mine shows that the average and maximum values have a better effect, the minimum values have the worst effect, and the median can obtain good data only when the sample distribution is uniform or the number of samples is sufficient.