针对原始数据波动情况，提出了残差周期模型以提高预测精度。
To counter the fluctuating case of original data, residual periodic model is put forward to increase forecast precision.
在波动方程有限差分数值模拟基础上，用波形记录残差平方并建立目标函数。
The objective function can be built based on the finite difference modeling for the wave equation.
本文叙述了光学天文时纬观测资料的残差在仪器周围地区发生强地震前夕出现短期异常波动的现象。
This paper about the phenomenon of anomaly of astronomical time-latitude residuals before major earthquake occurred around observatory.
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