The Concept and Application of the Equi-frequency Geoid

In this paper,the authors expounded the concept and theoretical basis of the equifrequency geoid,discussed the relation between the equi-frequency scold and the classic geoid,proposed a new method——gravitation or gravity frequency shift method——for determining geopotential differences and heisht differences,and probed the way to solve the geodetic boundary value problem by using the method of frequency-shift measurement.