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本文利用小波变换下有效信号和随机噪声在多尺度空间中模极大值不同的传播特性，对地震模拟振动台试验测试信号进行去噪处理，取得良好效果。
In this paper, using the propagation characteristics of the effective signal under random wavelet transform and the modulo maxima of random noise in multi-scale space, the test signal of the seismic shaker test is denoised and achieved good results.