Research of PN code acquisition performance of antenna array with angle extension

In most research of PN code acquisition performance of antenna array, the signal DOA is regarded as a constant. But in practice, the signal DOA always spreads to a certain extent, which affects PN code acquisition performance. In this paper, the angle extension is introduced into the direct-sequence spread-spectrum array signal model, and PN code acquisition performance is analyzed through CFAR algorithm. The simulation is also made and the results show that when the jamming is restrained by the array antenna beam, because of the diversity reception, the code acquisition performance is improved on the condition of the angle extension.