trekometer

Method of fundamental solutions based on geodesic distance for inhomogeneous heat conduction equations in anisotropic medium;

用测地距离的基本解方法求解非齐次各向异性热传导方程

Method of fundamental solutions based on geodesic distance for anisotropic heat conduction problems;

测地距离的基本解方法求解各向异性热传导方程

Using locally estimated geodesic distances to improve Hessian local linear embedding;

局部测地距离估计的Hessian局部线性嵌入

The difference between air-to-air and air-to-ground distance measuring of certain type of TACAN(Tactical Air Navigation) system and some special problems such as frequency control, touch off signal and over-loading control are discussed.

为满足飞机空中加油的需求,探论了塔康系统空-空测距与空-地测距的不同点,对塔康系统空-空测距状态存在的一些特殊问题,如频率控制、触发信号的提取、发射机过载等,并提出了解决方案。