| 卫星高速8PSK调制器中成形滤波器设计及其基于并行查表的FPGA实现 |
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| 引用本文： | 刘宏宇,朱江,张尔扬.卫星高速8PSK调制器中成形滤波器设计及其基于并行查表的FPGA实现[J].飞行器测控学报,2006,25(1):57-60. |
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| 作者姓名： | 刘宏宇 朱江 张尔扬 |
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| 作者单位： | 国防科技大学电子科学与工程学院·湖南长沙·410073;国防科技大学电子科学与工程学院·湖南长沙·410073;国防科技大学电子科学与工程学院·湖南长沙·410073 |
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| 摘 要： | 根据高速8PSK卫星调制器的要求,针对数字化基带成形滤波的信号处理特点,提出一种基于部分卷积和并行查表的高速卫星成形滤波器设计方法及基于现场可编程门阵列(FPGA)芯片结构的FPGA算法。用片内的BLOCKRAM精心设计查找表,通过改变查找表内容可适用于各种信道限带性能要求的传输系统。在X ILINX公司V irtex2-1000芯片上完成该方案,MODELSIM的时序仿真结果表明可支持高达400Mb it/s的输入数据,满足卫星通信高速成形的要求。
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| 关 键 词： | 8PSK 基带成形 平方根升余弦滚降滤波器 卫星通信 |
| 收稿时间： | 2005-03-20 |
| 修稿时间： | 2005-10-13 |
Design of Shaping Filter for High Speed 8PSK Modulator and FPGA implementation based on Parallel Look-up Table |
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| LIU Hong-yu ,ZHU Jiang, ZHANG Er-yang.Design of Shaping Filter for High Speed 8PSK Modulator and FPGA implementation based on Parallel Look-up Table[J].Journal of Spacecraft TT&C Technology,2006,25(1):57-60. |
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| Authors: | LIU Hong-yu ZHU Jiang ZHANG Er-yang |
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| Institution: | College of Electronic Science and Engineering, National University of Defense Technology, Changsha, Hunan Province 410073 |
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| Abstract: | Aimed at the signal processing characteristics of digitally-implemented baseband shaping,this paper puts forward a design method of high speed satellite shaping filter based on look-up table to meet requirements of high speed 8PSK modulators and the hardware implementation scheme based on FPGA structure.The project is implemented in the Virtex2 of XILINX Corporation and its correctness is verified through MODELSIM timing simulation. |
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| Keywords: | 8PSK Baseband Shaping Square Root Raised Cosine Filter Satellite Communication |
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