自动调制度测试仪的研制  

The development of an automatic modulation meter

作　　者：张正华[1] 严立中[1] 吴孟生 

机构地区：[1]扬州大学信息工程学院,江苏扬州225009 [2]扬州供电公司,江苏扬州225009

出　　处：《扬州大学学报（自然科学版）》2004年第4期50-54,共5页Journal of Yangzhou University：Natural Science Edition

摘　　要：研制了以单片机为核心的自动调制度测试仪.该仪器具有如下特点:宽频率范围测试信号自动跟踪,输入载波频率范围1.5-2000 MHz;宽动态范围载波电平自动调整,输入载波电平范围0.01-1 V;低失真高灵敏度,低频输出失真≤±1％,实测灵敏度为2-3 mV.An automatic tester with a single chip microcomputer as its core to measure the degree of modulation is developed. The features of the tester are automatic tracking of the tested signal within a wide rang of frequency, input frequency range signal carrier 1. 5-2 000 MHz. The automatic regulation of the carrier level with a wide dynamic range, input level range of signal carrier is 0. 01-1 V. The automatic testing with high sensitivity and low distortion, the distortion is smaller than ±1% , and 2-3 mV to survey the sensitivity.

关 键 词：调制度 跟踪锁定 宽动态 智能监控 

分 类 号：TN761[电子电信—电路与系统]