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采用Ｆｏｕｒｉｅｒ级数和统计分析的方法，分析了强力输送带横向断裂预报图像串行传输信号的频谱．结果表明，串行图像信号中包含帧扫描频率和系统主频丰富的谐波分量，但不包含图像数据并串转换频率的谐波分量．分析得出的结论对确定该串行图像信号的带宽、对同步信号的提取具有指导意义．分析采用的方法适用于时间轴上不均匀分布的随机二进制信号的频谱分析．
Using the method of Fourier series and statistical analysis, the frequency spectrum of the serial transmission signal of the transverse fracture prediction image of the strong conveyor belt is analyzed. The results show that the serial image signal contains the harmonic frequencies of the frame scanning frequency and the system dominant frequency, but does not include the image data and converts the harmonic components of the frequency. The conclusion obtained from the analysis is of guiding significance for determining the bandwidth of the serial image signal and extracting the synchronization signal. The method used in the analysis is suitable for the spectral analysis of random binary signals with uneven distribution on the time axis.