| 基于FPGA圆阵超声自适应波束形成的设计 |
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| 引用本文： | 颜海,庄圣贤,杨硕,庄晓明. 基于FPGA圆阵超声自适应波束形成的设计[J]. 现代电子技术, 2008, 31(9): 67-69 |
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| 作者姓名： | 颜海 庄圣贤 杨硕 庄晓明 |
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| 作者单位： | 西南交通大学,电气工程学院,四川,成都,610031 |
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| 摘 要： | 设计了一种适于FPGA实现的圆阵数字自适应波束形成系统结构,系统采用FIR架构及延迟最小均方算法(DLMS),其中复数乘加模块采用循环移位乘加算法,自适应模块采用并行乘法器及时更新权系数。仿真结果表明基于FP-GA芯片实现数字自适应波束形成(DABF)具有实时性好,结构简单,易于实现等优点。
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| 关 键 词： | 数字自适应波束形成 延时最小均方算法 流水乘加器 FIR |
| 文章编号： | 1004-373X(2008)09-067-03 |
| 修稿时间： | 2007-10-31 |
Design of Ultrasonic Array Adaptive Beam-Formed Base on FPGA |
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| YAN Hai,ZHUANG Shengxian,YANG Shuo,ZHUANG Xiaoming. Design of Ultrasonic Array Adaptive Beam-Formed Base on FPGA[J]. Modern Electronic Technique, 2008, 31(9): 67-69 |
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| Authors: | YAN Hai ZHUANG Shengxian YANG Shuo ZHUANG Xiaoming |
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| Abstract: | This paper describes the design of a digital Adaptive Beam Forming(ABF) system architecture base on FPGA.The ABF system uses FIR structure and Delayed Least Mean Square(DLMS) in which multiply-add module is designed by the method of cycle displacement pipeling MAC.The method meets the requirements of computational speed of the plural operation to save a lot of resources,adaptive parallel multiplier module is used to update the weights.Simulation results show the Digital Adaptive Beam Forming(DABF) based on FPGA chip has the advantages of time-efficiency,simple and easy to realize etc. |
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| Keywords: | digital adaptive beam forming delay LMS displacement pipeling MAC FIR |
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