Due to structure of differential pressure vector sensor

and practical engineering applications

in consistency and assembly error of four-element production process

result in orientation precision of the underwater target is not accurate.Two-dimensional（2D） differential pressure vector sensor is studied as the object.The structure and principle of single 2D differential pressure vector sensor are analyzed.By using correlation orientational method

precise orientation of the target in the case of low-noise is achieved

simultaneously analyze influence of element position deviation and element channel inconsistency on DOA estimation generated by two-dimensional vector sensor.The simulation results show and verify that the main factors affecting vector sensor azimuth estimation

and it is convenient to study azimuth estimation compensation.