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 mathematics required for more sophisticated treatment of downward continuation is beyond the level of this book .
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。
The downward continuation computation for real airborne gravity data in the Datong region of China is performed by means of these methods.
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。
Aeromagnetic data downward continuation to sea level instead of Marine magnetic survey data can improve use capability of survey data.
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.
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 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.
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。
Downward continuation of both the reflected P and converted s simultaneously is stable. The wave forms of both th...
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 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.
利用所建立的模型，将航空重力测量试验数据采用最小二乘配置的方法向下延拓到地面，与地面已知重力数据进行比较。
Using this model, the airborne gravity measurement test data is downward continued based on least squares collocation and is compared with known ground gravity data.
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 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 values of analytical continuation at different depths from the potential field downward constitute the continuation field, on which the principal component analysis is made.
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