A beam forming method based on amplitude weighting of uniform circular array

作者：Wang, Jin Lin; Fu, Yong Qing; Liu, Xue

来源：4th International Conference on Materials Science and Information Technology, MSIT 2014, 2014-06-14 To 2014-06-15.

DOI：10.4028/www.scientific.net/AMR.989-994.3722

• Amplitude weighting
• Application prospect
• Beam directivity
• Side-lobe suppression
• Signal modeling
• Space directions
• Theoretical derivations
• Uniform circular arrays

The uniform circular planar array (UCA) has lots of advantages what linear arrays and other surface arrays don't have. However, because of its limitations, such as the high side-lobe level and low zero depth, the application on controlling array space direction by beam forming has been limited. Considering the characteristics of UCA, the receiving UCA's signal model is established in this paper. The influence factors of UCA's beam will be found out on the basis of theoretical derivation. A new method, that can improve the performance of the UCA beam directivity by amplitude weighting, is proposed in this paper. The theoretical derivation results and simulation results improved that the method could have a better ability in side-lobe suppression, and the new method could make the UCA to have a good application prospect.

• 出版日期2014
• 单位哈尔滨工程大学