An Efficient FPGA Implementation for 2-D MUSIC Algorithm

作者：Huang, Kai; Sha, Jin^*; Shi, Wei; Wang, Zhongfeng

来源：Circuits, Systems, and Signal Processing, 2016, 35(5): 1795-1805.

DOI：10.1007/s00034-015-0144-z

• MUSIC algorithm
• DOA
• FPGA
• CORDIC
• Multi-scale peak searching

Multiple signal classification (MUSIC) algorithm is widely used in measuring the direction of arrival. In VLSI implementation of a two-dimensional MUSIC algorithm, the two primary modules, eigenvalue decomposition and spatial spectrum search, generally consume a significant hardware and cause long processing delay. Two novel design techniques: serial rotation angle broadcasting and multi-scale peak searching are introduced in this paper to mitigate these problems. An FPGA implementation is presented to demonstrate the efficiency of the proposed techniques. It only takes 1 ms for one set of 2-D direction estimation, and the deviations in elevation angle and azimuthal angle are both less than . The whole design is implemented in Xilinx's Virtex-6 LX130T, which consumes about 60 % of the total resources of a single device.

• 出版日期2016-5
• 单位南京大学