| 全数字式前馈AGC设计与FPGA实现 |
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| 引用本文： | 董智红,崔嵬,吴嗣亮.全数字式前馈AGC设计与FPGA实现[J].北京理工大学学报,2008,28(12):1093-1096. |
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| 作者姓名： | 董智红 崔嵬 吴嗣亮 |
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| 作者单位： | 北京理工大学,信息科学技术学院电子工程系,北京,100081;北京理工大学,信息科学技术学院电子工程系,北京,100081;北京理工大学,信息科学技术学院电子工程系,北京,100081 |
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| 摘 要： | 为了解决抗干扰导航接收机中数字干扰对消结果的动态范围过大问题,提出一种新的全数字式前馈自动增益控制(AGC)算法.研究了算法中各个参数的设置方法,并指出现场可编程门阵列(FPGA)实现技巧.仿真实验结果表明,对于不同有效位数的输入数据,只需经过一步增益调节就可使输出达到期望的取值范围;而实现时对增益控制因子精度的选择,将影响AGC输出信号的平均幅度.
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| 关 键 词： | 全数字式 前馈AGC 动态范围 现场可编程门阵列(FPGA) |
| 收稿时间： | 5/8/2008 12:00:00 AM |
Design and FPGA Implementation of Full-Digital Feed-Forward AGC |
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| DONG Zhi-hong,CUI Wei and WU Si-liang.Design and FPGA Implementation of Full-Digital Feed-Forward AGC[J].Journal of Beijing Institute of Technology(Natural Science Edition),2008,28(12):1093-1096. |
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| Authors: | DONG Zhi-hong CUI Wei and WU Si-liang |
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| Institution: | Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | Presents a new full-digital feed-forward auto gain contnol(AGC) algorithm aiming at the problem that the digital jam elimination's outputs have large dynamic range in the anti-jamming navigation receiver.Studies all parameter's of setting methods and points out the field programmable gate array(FPGA) implementation tips.In order to make outputs reach the anticipated ranges,only one-step gain adjustment is needed.Simulations indicate that appropriate gain control factor precision ensures the performance of full-digital feed-forward AGC for various virtual-bit inputs. |
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| Keywords: | full-digital feed-forward AGC dynamic range field programmable gate array(FPGA) |
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