计算机工程2013，Vol.39Issue(7)：306-310,5.DOI:10.3969/j.issn.1000-3428.2013.07.068
前视声纳波束形成算法的FPGA实现
FPGA Implementation of Forward Looking Sonar Beamforming Algorithm
赵慎 1乔纯捷 1张朝明 2马超1
作者信息
- 1. 国防科学技术大学机电工程与自动化学院,长沙410073
- 2. 中国船舶重工集团公司第705研究所,昆明650118
- 折叠
摘要
Abstract
The characteristics of multiple channel and high sample frequency in forward looking sonar demands a heavy computation burden for azimuth and distance information processing,which sets a higher requirement for the real time computation.By the processing units and distributed operation in Field Programmable Gate Array(FPGA),the bottle-neck of speed can be resolved on a large scale.The paper mainly studies the implementation of quadrature demodulation and beam-forming algorithm applied for the original imaging information,based on FPGA.The signal model is established,and the core algorithm is derived.The difficultness in the implementation is presented,and the utilization of FPGA resources is provided.A validation of the processing schemes is conducted with real data in the tank and lake yielding accurate results.关键词
前视声纳/多通道高采频/正交解调/波束形成/现场可编程门阵列/并行运算Key words
forward looking sonar/ multiple channel high sample frequency/ quadrature demodulation/ beamforming/ Field Programmable Gate Array(FPGA)/ parallel computation分类
信息技术与安全科学引用本文复制引用
赵慎,乔纯捷,张朝明,马超..前视声纳波束形成算法的FPGA实现[J].计算机工程,2013,39(7):306-310,5.
