利用IGRF模型计算全张量地磁梯度
钟炀, 管彦武, 石甲强, 肖锋
The calculation method of full tensor geomagnetic gradient based on IGRF model
Yang ZHONG, Yan-Wu GUAN, Jia-Qiang SHI, Feng XIAO
表1
0~3阶勒让德多项式
Table 1
Legendre polynomials of order 0~3
n
P
n
(cos
θ
)
P
n
(
v
)
0
1
1
1
cos
θ
μ
2
(3cos2
θ
+1)
/
4
(3
v
2
-1)
/
2
3
(5cos3
θ
+3cos
θ
)
/
8
(5
v
3
-3
v
)
/
2