【摘要】 讨论了子波变换用于信号突变的检测原理，并用这种方法分析了武昌时辰站1994年测量由卫星电视传播并由中央电视台发出的秒信号的时间延迟值，精确检测出了该信号的突变点，并由此求出了同步卫星运动周期的变化特征。结果表明：利用于波变换能很好揭示同步卫星的运动特性。更多还原

【Abstract】 In this paper, the principle of singularity of signals using wavelet transform is dicussed. The time delay value in TV-signals transmmitted by satellite are analyzed by wavelet transform. The singularity of time delay value is precisely determined. The periods of the satellite movement in these days are obtained. The results show that wavelet transform is a good method in finding the periodicity of synchronous satellite.更多还原