基线估计
导入近期的太阳黑子活动.
| In[1]:= |  X |
估计并可视化信号背景.
| In[2]:= |  X |
| In[3]:= |  X |
| Out[3]= |  |
从数据中减去背景.
| In[4]:= |  X |
| Out[4]= |  |
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