| 1. | In the paper , the gpr system developed by us employs several optimization techniques to enhance the system performances , including antenna , sampling - hold circuit , orientation wheel , function of system software , multithreading , and signal processing algorithms . as the result the system works more well with these techniques , and its azimuth and distance resolution of 10 cm has been achieved with detection depth of more than 50 cm . the main contents of this dissertation are summarized as following : 1 本文根据探地雷达系统工作原理,在电子科技大学探地雷达系统样机研制的基础上采用了各种有效的优化技术,包括探测前端、采样保持电路的优化,定位轮、目标定位、多线程技术的应用,数据采集处理和控制软件功能的拓展、各种有效的信号预处理算法的应用等,显著提高了系统的探测性能和增强了探测效果,使得系统方位、距离分辨率均达到了10cm ,探测深度大于50cm ,其性能指标达到国外先进水平,为进一步的实用化奠定了重要的基础。 |