激光遥感图像高速滤波器算法的FPGA实现  

Implementation of High-speed Filter Algorithm Based on FPGA for Laser Remote Sensing Image

作　　者：武健[1] 赵菊敏[1] 李灯熬[1] 

机构地区：[1]太原理工大学信息工程学院,山西太原030024

出　　处：《自动化仪表》2014年第10期13-15,20,共4页Process Automation Instrumentation

基　　金：国家自然科学基金青年科学基金资助项目(编号:61303207);国家自然科学基金资助项目(编号:61371062);教育部高等学校博士学科点专项科研基金联合资助项目(编号:20121402120020);山西省科学技术发展基金资助项目(编号:20120321024-01);山西省国际合作基金资助项目(编号:2012081031);山西省留学回国人员科研基金资助项目(编号:2013-032)

摘　　要：针对激光遥感信号高速高精度的要求,利用FPGA的多任务、高速并行性设计系统进行滤波。考虑到激光光电传感器设计的滤波器会有很大的信号衰减,且具有精度要求高的特点,提出了基于FPGA内部基本逻辑单元、乘法器、存储器,经过乘法分解和时序设计,实现具有可移植性的图像高速分辨的方法。系统采用FPGA设计平台,并用Verilog语言设计程序。试验结果验证,该滤波器对激光遥感信号具有高速、精确滤波功能,同时表明利用低端FPGA设计激光滤波器必将成为未来发展趋势。To fulfill the requirements of high speed and high accuracy filtering for laser remote sensing signals, by adopting the advantages ofFPGA, i.e. , multi-task, and highly parallel characteristics, the system for filtering is designed. Considering the filter designed with laserphotoelectric sensor may bring large signal attenuation, and request high accuracy, so the solution based on the basic logic cells, multiplexersand storage existing inside FPGA is proposed, through multiplication decomposition and timing design, to implement transplantable high speedimage resolution. The FPGA is used as the design platform of the system, and the Verlog language is used for designing program. Theexperimental results show that this filter possesses high speed and precise filtering functions to laser remote sensing signals, in addition, it isindicated that using low-end FPGA to design laser filter will become future developing trend.

关 键 词：激光遥感 数字滤波器 高速分辨 信号衰减 FPGA 

分 类 号：TN911.7[电子电信—通信与信息系统]