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本文基于Morlet子波提出了一种连续子波函数ga（x）。证明了函数ga（x）是子波函数，并把这种连续子波用于谐波非线性模型的定阶问题，取得了很好的效果。
In this paper, a continuous wavelet function ga (x) is proposed based on Morlet wavelet. It is proved that the function ga (x) is a wavelet function, and this continuous wavelet is used to solve the problem of harmonic nonlinear model.