Principle and implementation of phase ambiguity resolution of interferometer based on DBF

The traditional method which uses the short baseline to overcome phase ambiguity of the phase interferometer is restricted because of the mutual coupling between antennas.Greater capabilities than the common antenna can be achieved by using the technology of digital beam forming(DBF) because of flexibility in digital signal processing,providing a new approach to the problem of phase ambiguity.The feasibility of using DBF to resolve phase ambiguity is analyzed and demonstrated based on the basic principle of DBF.The concrete method to implement the idea is given in combination with a practical project.