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介绍了利用小波分析的方法对水下目标的回波信号进行去噪声、检测及定位．模拟结果表明，该方法的时频可变性有效地克服了传统方法的不足．
The method of wavelet analysis is introduced to de-noise, detect and locate echo signal of underwater target. The simulation results show that the time-frequency variability of this method effectively overcomes the shortcomings of the traditional methods.