Bluetooth 응용을 위한 MUSIC 알고리즘 기반DoA 추정기의 설계
Design of MUSIC-based DoA Estimator for Bluetooth Applications
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초록
본 논문에서는 multiple signal classification(MUSIC) 알고리즘을 바탕으로 Bluetooth 저전력 응용 기술에 적용 가능하도록 설계한 각도 추정기를 제안하고, 이를 FPGA로 구현한 결과를 제시한다. MUSIC 알고리즘은 높은 정확도에 따른 많은 연산량이 요구되므로 이를 하드웨어 고속설계 하였고, 실내 시스템의 다양한 해상도의 요구에 대응하기 위해 snapshot 가변을가능하게 설계하였다. Xilinx zynq-7000으로 구현한 결과 9,081개의 LUTs로 구현함을 확인하였고, 100MHz의 동작주파수로동작이 가능하도록 설계하였다.
Abstract
In this paper, we propose an angle estimator that is designed to be applied to Bluetooth low-power applicationtechnology based on multiple signal classification (MUSIC) algorithm, and present the result of implementation in FPGA. The MUSIC algorithm is designed for H/W high-speed design because it requires a lot of calculations due to highaccuracy, and the snapshot variable is designed to cope with various resolution requirements of indoor systems. As aresult of the implementation with Xilinx zynq-7000, it was confirmed that 9,081 LUTs were implemented, and it wasdesigned to operate at =the operating frequency of 100MHz.
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