重力异常

在JX地区，由莫氏界面的起伏只能引起21&42毫伽的重力异常值。

The undulation of Mohorovicic discontinuity under JX region only causes the gravity anomaly of 21-42 milligals .

Parker快速富氏变换反演单一密度界面存在两方面问题：一是求解目标界面重力异常难度较大；

There are problems in two aspects of the Parker fast Fourier transform for inversion of unitary density interface : thefirst is rather difficult to solve gravity anomaly on target interface ;

变密度界面模型重力异常反演的B样条函数法

Interfacial models of variable density and gravity inversion by B-spline

计算变密度任意形状地质体重力异常的B样条函数法

B spline function method for calculating gravity field of density-variable source body with arbitrary shape

本文以B样条函数的插值、求导、求积为基础，建立了用B样条函数正演二度和三度复杂形态变密度地质体重力异常的方法。

B spline function methods for calculating gravity fields of 2D and 3D density-variable source bodies with complex shape are developed on the basis of interpolation , derivation and integration of B spline function .

基于离散余弦变换（DCT）的重力异常垂向二阶导数的计算方法是笔者提出的新方法。

It is a new method that calculate vertical second derivative of gravity anomalies based on discrete cosine transform ( DCT ) .

磁异常走向没有重力异常明显，但主要也为NNE向。

Tend towards of magnetic anomaly is not distinctness compared with gravity anomaly . But it is also NNE .

利用水平总梯度模、Tilt梯度、Thetamap以及归一化标准差的方法对南岭重力异常进行边缘识别，研究南岭地区隐伏花岗岩体分布范围，绘制了预测结果图。

Tilt gradient , Theta map and normalized standard deviation to conduct edge recognition to gravity anomaly in Nanling , we mapped the forecast result by studying the buried distribution of granite rock mass in Nanling region .

首先介绍了空中重力异常向下延拓的直接代表法、正则化法、点质量法和基于球内Dirichlet问题的调和解法，分析了它们各自的特点。

We present four downward continuation methods for airborne gravity data . They are the direct representation method , Tikhonov regularization , point-mass model and the spherical interior Dirichlet 's harmonic solution method .

仿真结果表明：该组合导航系统长时间定位误差小于导航系统目标误差的15%（RMS），在重力异常显著变化地区其定位误差将更小。

Simulation results show that the position error of the integrated navigation system is less than 15 % ( RMS ) of goal error over long intervals , and even smaller in the area with evident anomaly gravity .

全面研究了利用卫星测高数据反演海洋重力异常3种主要方法（即Stokes数值解析反解以及逆Vening-Meinesz公式）的技术特点；

Three methods ( analytical and numerical inversion of the Stokes formula , and the inverse Vening Meinesz formula ) for determining gravity anomalies from altimeter data are developed and studied in detail .

根据Stokes积分和空域截断逼近模式，推导了内区格网空间重力异常（大地水准面上）、外区全球重力场模型与大地水准面计算精度的解析关系。

Based on the Stokes formula and the spatial domain truncation approximation method , the analytic relationship was deduced between free-air gravity anomalies grid on geoid used in the inner area , global geopotential model in the outer area and precision of regional gravimetric geoid .

作为一个应用实例，本文简明地给出了Bjerhammar理论所需要的虚拟重力异常。

Furthermore , as an application example , the fictitious gravity anomaly required in Bjerhammar 's theory is simply derived out , based on the principle of the fictitious compress recuperation .

采用matlab/simulink工具对该组合导航系统在分辨率为0.005o×0.005o的数字重力异常图上进行了计算机仿真研究。

The simulation of the integrated navigation system was carried out with Matlab / Simulink and gravity anomaly maps whose resolution is 0.005o × 0.00 5o .

采用小波变换多尺度分解技术，对华北地区布格重力异常进行分解，获得自地表至Moho界面深度范围内不同尺度的密度异常体产生的重力异常。

Bouguer gravity anomaly in North China is decomposed with multi-scale decomposition technique of wavelet transform , and gravity anomalies produced by anomalous density bodies of varying scales from surface to Moho are revealed . Characteristics of anomaly of different orders and corresponding structural features are discussed .

对于中国大陆，比较IGGGRACE01S模型（前72阶）计算的重力异常和NIMA重力异常数据（2.5°×2.5°网格），两者之间的标准偏差为4.8mGal。

Comparing the gravity anomalies derived from IGGGRACE01S ( 72 degree ) with NIMA gravity anomalies data ( 2.5 °× 2.5 °), the standard deviation is 4.8 mGal in China land region .

区域重力异常高精度实现异常转换的一个普遍方法

A General Method for High Precision Transformation of Regional Gravity Anomalies

优选延拓技术及其在中国布格重力异常图处理上的应用

Preferential continuation and its application to Bouguer gravity anomaly in China

喜马拉雅地区的均衡重力异常与地震活动性

The isostatic gravity anomalies and seismic activity in the Himalayan region

有限元方法计算重力异常的新边界条件

New Boundary Conditions for Calculating Gravity Anomalies by Finite Element Method

用重力异常反演密度界面是一个非线性优化问题，以往多是在一定条件下将其转化成线性或拟线性问题，然后采用局部优化算法求解。

The inversion of gravimetric interface is a non linear problem .

重力异常频率域分离方法及应用

The frequency field separation technique of gravity anomalies and its application

基于重力异常连续复小波变换的断裂分析

Fracture analysis based on continuous complex wavelet transform for gravity anomalies

大港&渤海西部地区重力异常数据的处理和解释

Processing and interpretation of gravity anomaly data in Dagang-west Bohai area

重力异常辅助惯性导航中匹配区提取方法

Extraction Method of Matching Area in Gravity Anomaly Aided Inertial Navigation

山形重力异常的成因机制及消除方法

Cause of mount-shape gravity anomaly and the method to remove it

河南范县ML4.3级地震前后重力异常探讨

Gravity anomaly before and after Fanxian M_L4.3 earthquake in Henan Province

重力异常频域迭代计算方法的应用

The application of the iterative method frequency domain for gravity anomalies

利用重力异常匹配技术实现战略潜艇的导航

Using Gravity Anomaly Matching Techniques to Implement Strategic Submarine Navigation

新疆区域布格重力异常与油气普查

The regional Bouguer gravity anomalies and oil / gas exploration in Xinjiang