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对铁路轨道移频信号的频谱进行了分析 ,针对其频谱特点发现了应用带通采样技术的可行性 ,提出了基于带通采样频率的非整周期采样的实时检测方法 ,同时对其频率分辨率和实时性进行了研究
The frequency spectrum of railway track frequency shift signal is analyzed. The feasibility of applying bandpass sampling technology is found according to its frequency spectrum characteristics. A real-time detection method of non-integer period sampling based on band-pass sampling frequency is proposed, and its frequency resolution And real-time research