Downward continuation of both the reflected P and converted s simultaneously is stable. The wave forms of both th...
说明了它对反射纵波和转换横波同时向下延拓和偏移是稳定的，所得到的偏移结果是令人满意的。
The mathematics required for more sophisticated treatment of downward continuation is beyond the level of this book .
对于向下延拓更完善的论述所需要的数学已越出本书的范围。
The results show that the stable downward continuation program has higher accuracy and stability than other single method.
结果表明，稳定下延方案较单项的其他下延方法具有更高的精度和稳定性。
Aeromagnetic data downward continuation to sea level instead of Marine magnetic survey data can improve use capability of survey data.
采用航磁数据向下延拓到海面代替船测数据，可提高磁力测量成果的综合利用率。
The downward continuation computation for real airborne gravity data in the Datong region of China is performed by means of these methods.
然后利用这些方法对中国大同航空重力测量数据进行向下延拓计算。
Based upon the theory of upward continuation of two-dimensional magnetic anomaly data, a corresponding downward continuation formula has been derived.
从二度磁异常上延理论出发，推导出一种下延方法。
These methods can effectively restrict the oscillations due to the measuring errors or the high frequency disturbances. The trend of downward continuation is stable.
这些方法大都能有效地压制由于观测误差或高频干扰所引起的振荡，使下延结果趋于稳定。
The existing methods of downward continuation of potential fields con not be used to continue the aeromagnetic data to the sea level because of the limited continuation depth.
因延拓深度有限，现有的位场向下延拓方法不能从航磁资料向下延拓出海面的磁场。
The applications of vector gravity on the determination of the earth's gravity field are described, including the downward continuation of vector gravity and determination of the local geoid.
论述了重力矢量在确定地球重力场方面的作用，包括重力矢量的向下延拓和局部大地水准面的确定。
The values of analytical continuation at different depths from the potential field downward constitute the continuation field, on which the principal component analysis is made.
位场向下在不同深度上解析延拓的值构成延拓场，可对延拓场进行主成份分析。
The precision of Method L is better than those of other downward-continuation methods, which is illustrated by contrasting the theoretical model calculation value with the theoretical value.
通过理论模型及实测磁场向下延拓计算，说明L法比现有其它下延方法精度都高。
The precision of Method L is better than those of other downward-continuation methods, which is illustrated by contrasting the theoretical model calculation value with the theoretical value.
通过理论模型及实测磁场向下延拓计算，说明L法比现有其它下延方法精度都高。
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