介紹了一種干涉儀測向機中相位差提取的方法和多普勒測向原理相結合的雙通道多普勒測向機，它可以采用兩部獨立同型號的接收機實現(xiàn)對寬帶信號測向。在闡述雙通道多普勒測向機基本原理的基礎上，給出了對調(diào)頻信號進行測向的計算機仿真結果和部分外場測向試驗數(shù)據(jù)，理論與實測表明：該則向機測向方法簡單、可行。This paper introduces a dual-channel Doppler direction finder which combines the Doppler principle with the phase difference picking method used in the interferometer direction finder. The finder can be implemented with two independent receivers of same model for direction finding of broadband signals. On the basis of the description of fundamental principles of a dual-channel Doppler direction finder, this paper provides the computer simulation results of direction finding against FM signals and partial data from field tests. Theoretical deduction and test results both prove the simplicity and feasibility of the mentioned DF method.