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Design of Communication Cable Attenuation Characteristic Measurement System Based on Freescale Kinetis60 and AD9850
Author(s): 
Pages: 19-22
Year: Issue:  4
Journal: Measurement & Control Technology

Keyword:  communication cable detectionFreescale Kinetis60attenuation characteristicspectral analysis;
Abstract: 为了检测和验证通信电缆的电气性能,衰减特性是被检测的一个非常重要的指标.设计的通信电缆衰减特性检测系统选择飞思卡尔Kinetis60作为主控制芯片,利用DDS芯片AD9850产生单频正弦信号或扫频信号,经过滤波放大加载至电缆,之后主控制芯片对电缆末端回波信号进行采集并进行频谱分析,且通过一定的程序算法实现对通信电缆的衰减特性检测.系统在音频范围(20 Hz~22 kHz)内,能够实现电缆衰减特性的检测.
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