Algorithm for obtaining high accurate phase interferometer

Phase ambiguity and phase error in interferometric method are important problems that have to be solved to determine angle of arrival (AOA) of signal. This paper proposes fast algorithm for ambiguity resolution of long baseline interferometric system, which was configured by three- and four-antenna array. In addition, the algorithm also provides information of allowable maximal error in phase measurement. The proposed algorithm also enables to configure a phase interferometric system. The algorithm was tested and verified by experimental results.