中文摘要：

对含白噪声的1/f分形信号小波变换系数的方差随尺度变化的关系进行适当的变换,提出了一种基于最小二乘法的估计半导体激光器1/f噪声参数的新方法.实验表明,该方法可以有效地提取出淹没在白噪声中的激光器1/f噪声,而且估计出的噪声信号的功率谱与对比仪器的测量结果有较好的一致性.

英文摘要：

The variable relation of the coefficient variance of wavelet transformation of 1/f fractal signal in white noise versus the scale is adequnately modified to develop a novel method based on least｜squares to estimate the parameters of 1/f noise of semiconductor laser diodes（LDs）.The measured data indicate that this method can effectively extract the 1/f noise submerged in white noise of LDs,and the estimated 1/f signal is in better accordance with the measured results of the contrast apparatus.