×

探地雷达回波信号数据采集的设计

消耗积分:10 | 格式:rar | 大小:600 | 2011-01-05

李明

分享资料个

深入分析探地雷达工作原理以及雷达回波信号的特点，采用基于等效时间取样技术实现探地雷达回波信号的数据采集：采用高精度的数字可编程延时器产生稳定的步进时钟，作为时序步进采样的同步信号，同时采用“PC机+单片机+CPLD”以实现对数据采集、存储和传输的时钟控制。较之以前采用模拟电路技术产生步进采样脉冲，有电路简单、精度高、稳定性好和实时性强等优点。将标准的正弦波通过该采集电路，经处理得到恢复的波形，通过波形对比的方式来验证该设计的性能，从而定性的可以看出该设计能良好的恢复原来的信号，满足设计要求。
Abstract:
 The ground-penetrating radar working principle as well as the characteristics of the radar echo signal was in-depth analyzed，the data collection method was adopted based on equivalent time sampling technology:using highprecision digital programmable delay devices to produce a stable stepping clock，as a sequential step sampled synchronization signal，simultaneously，using“PC machine + MCU + CPLD”to achieve the clock control of data collection，storage and transmission. Compared to previously using analog circuit technologies produced stepping sampling pulse，this method has advantages of simple circuit，high precision， good stability and strong reatime. Using a standard sine wave through the acquisition circuit as measured signal to verify the design’s performance，and then compared the standard signal with the recovered signal.It can be qualitativly seen that the design can well restore the sound signal，it meets the design requirements.
下载并关注上传者 低至0.43元/天 开通VIP 免费下载

声明：本文内容及配图由入驻作者撰写或者入驻合作网站授权转载。文章观点仅代表作者本人，不代表电子发烧友网立场。文章及其配图仅供工程师学习之用，如有内容侵权或者其他违规问题，请联系本站处理。 举报投诉

评论(1)
发评论
chinadou 2013-01-22
0 回复 举报
谢谢 收起回复

下载排行榜

全部1条评论

快来发表一下你的评论吧 !