线性调频连续波雷达料位仪的研究  

Study on linear frequency-modulation continous wave radar meterial level instrument

作　　者：封维忠[1] 吴海青[1] 马文杰[1] 

机构地区：[1]南京林业大学信息科学技术学院,江苏南京210037

出　　处：《南京林业大学学报（自然科学版）》2009年第6期117-120,共4页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：南京林业大学创新基金(070974007)

摘　　要：利用线性调频连续波（LinearFrequencyModulatedContinuousWave，LFMCW）雷达料位仪的基本原理，采用三角波调制和开关电容滤波器芯片，设计了雷达料位仪的硬件和软件电路。对雷达料位仪的性能进行了测试，测试结果表明：该仪器可以在2～40m的范围内精确测量物料的高度，相对误差小于1％。系统具有成本低、测量精度高的特点。The hardware and software electrocircuit of radar feed location instrument were designed by using triangular wave modulation. They were switched capacity filter chip based on the principle of linear frequency-modulation continu- ous wave feed location instrument, and the performance of the designed instrument was also tested. The test results indi- cated that this instrument could accurately measure the height of materials in the distance of 2 to 40 m, and the relative error was less than 1%. This system has the character of low price and high accuracy.

关 键 词：雷达 线性调频连续波 料位仪 

分 类 号：TN959.5[电子电信—信号与信息处理]