基于传输触发架构的IIR型高斯滤波实现  

Implementation of IIR gaussian filter based on transport triggered architecture

作　　者：杨莫洋 蒋剑飞[1] 王琴[1] YANG Mo-yang;JIANG Jian-fei;WANG Qin(School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《微电子学与计算机》2020年第7期21-24,30,共5页Microelectronics & Computer

基　　金：天津市自然科学基金(15JCQNJC00100)。

摘　　要：为了满足嵌入式领域需求,针对无限冲激响应(IIR)高斯滤波器,提出了一种定点化策略,能够有效地替代浮点数实现版本.为了进一步提高滤波速度,设计了一款传输触发架构(TTA)处理器,并针对该算法特点,定制特殊功能单元,优化存储结构.实验结果表明,对于大小为640×480的24位真彩图像,IIR型高斯滤波的TTA实现速度是通用DSP的4.12倍.In order to meet the needs of the embedded field, a fixed-point strategy is proposed for the infinite impulse response Gaussian filter, which can effectively replace the floating-point implementation version. In order to further improve the speed of filtering, a Transport Triggered Architecture processor is designed, and special function units are customized for the characteristics of the algorithm, and the storage structure is optimized. The experimental results show that for a 24-bit true color image with a size of 640×480, the Transport Triggered Architecture implementation speed of the IIR Gaussian filter is 4.12 times that of the general-purpose DSP.

关 键 词：无限冲激响应 高斯滤波 定点化 传输触发架构 

分 类 号：TN402[电子电信—微电子学与固体电子学]