| 一种基于二阶锥规划的浮点分数时延滤波器 |
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| 引用本文： | 刘鑫,孙大军,滕婷婷,张宇.一种基于二阶锥规划的浮点分数时延滤波器[J].传感器与微系统,2014,33(12):101-103. |
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| 作者姓名： | 刘鑫 孙大军 滕婷婷 张宇 |
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| 作者单位： | 哈尔滨工程大学水声技术重点实验室,黑龙江哈尔滨,150001 |
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| 摘 要： | 宽带图像声纳通常采用分数时延滤波器来提高时延精度.传统的分数时延滤波器基本采用Farrow定点结构,但其动态范围窄并且需要占用较多的硬件资源.为克服上述不足,提出了一种采用二阶锥规划（SOCP）算法进行分数时延滤波器系数设计,并以分布式算法为基础的浮点分布式时延滤波器.该滤波器具有计算精度高、动态范围大等优点,适于在FPGA上进行规模化应用.
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| 关 键 词： | 分数时延滤波器 二阶锥规划 浮点运算 |
A floating-point fractional time-delay filter based on SOCP |
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| LIU Xin,SUN Da-jun,TENG Ting-ting,ZHANG Yu.A floating-point fractional time-delay filter based on SOCP[J].Transducer and Microsystem Technology,2014,33(12):101-103. |
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| Authors: | LIU Xin SUN Da-jun TENG Ting-ting ZHANG Yu |
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| Affiliation: | 1. Science and Technology on Underwater Acoustic Laboratory, Harbin Engineering University, Harbin 150001, China) |
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| Abstract: | Fractional time-delay filter is the common implementation to promote time-delay precision of broadband sonar. Traditional fixed-point Farrow structure filter has narrow frequency band and requires more hardware resources. A kind of floating-point distributed time-delay filter based on SOCP is raised to overcome these shortages. It has advantages of high precision, wide dynamic range and more suitable for FPGA applications. |
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| Keywords: | fraction time-delay filter SOCP floating-point processing |
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