用两种递推最小二乘辨识的方法辨识吹风机函数。在加白噪声和有色噪声的情况下观察变化。两个辨识的结果与实际输出很接近，但是都会比实际的要大一点。有可能是对有色噪声的估计所引起的。噪声的增加不明显。-Identification by two recursive least squares method to identify a hair dryer functions. Observe the changes in the plus white noise and colored noise situations. Two identification results with actual output is very close, but it will be bigger than the actual. There may be an estimate of colored noise caused. Noise increase is not obvious.