摘要
设计基于TMS320F2812的移频信号测试仪检测移频信号,保证列车行车安全。利用欠采样技术、快速傅立叶变换和Hilbert变换分析移频信号的频谱特性,从硬件电路和软件设计上采取措施,提高移频轨道电路测试仪的抗干扰性,保证测量精度,将误差控制在允许范围内。通过实验验证,该仪表达到预定设计目标。
To ensure safe operation of trains, designed frequency shift signal tester based on TMS320F2812 to measure frequency shift signals. Using under-sampling techniques, Fast Fourier Transform and Hilbert transform analyzed frequency shift signals＇ spectrum characteristics. For improving the capability of anti-jamming ,ensuring accuracy,and controlling error within the allowed range,some measures were taken in the design of hardware and software. Through experimental verification, the instrument achieved design goals.
出处
《机电一体化》
2009年第7期51-53,81,共4页
Mechatronics
