Matched field principle is applied to single vector hydrophone to realize passive location of target acoustic source. Two kinds of commonly used Bartlett processor are simulated. An improved Bartlett processor which can both restrain the side lobe numbers and improve the main lobe intensity is proposed. Through analyzing experimental data

at the range of 1. 3 km

when the SNR is not less than 10 dB

error of ranging and direction finding can be controlled within 10 %. The study provides important reference for practical application of single vector hydrophone.