| 基于Zynq-7000的宽带自适应噪声抵消系统设计 |
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| 引用本文： | 何宗苗,窦源,郑风. 基于Zynq-7000的宽带自适应噪声抵消系统设计[J]. 电视技术, 2015, 39(1) |
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| 作者姓名： | 何宗苗 窦源 郑风 |
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| 作者单位： | 西南科技大学信息工程学院特殊环境机器人技术四川省重点实验室,四川绵阳,621010 |
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| 基金项目： | 国防基础科研计划资助项目（B3120133002）；西南科技大学研究生创新基金资助（14ycx115） |
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| 摘 要： | 由于干扰噪声常常是随机变化和非平稳的,传统的滤波方法很难消除.针对这一问题,选用自适应格型联合算法(GAL-NLMS).在Zynq-7000芯片PL部分实现了一个22阶的GAL-NLMS算法,在芯片的PS部分实现了驱动程序的设计和基于Qt的界面设计.处理速度达到175 Mbit/s,并在ZedBoard开发平台实现了宽带自适应噪声抵消系统.用被噪声干扰过的QPSK和16QAM调制信号对系统进行测试,结果表明系统有效.
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| 关 键 词： | 非平稳 自适应 GAL-LMS ZedBoard 噪声抵消 |
| 收稿时间： | 2014-06-26 |
| 修稿时间： | 2014-08-05 |
Design of broadband adaptive noise cancellation system based on Zynq-7000 |
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| HE Zongmiao,DOU Yuan and ZHENG Feng. Design of broadband adaptive noise cancellation system based on Zynq-7000[J]. Ideo Engineering, 2015, 39(1) |
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| Authors: | HE Zongmiao DOU Yuan ZHENG Feng |
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| Affiliation: | College of Information Engineering, Southwest University of Science and Technology,College of Information Engineering, Southwest University of Science and Technology,College of Information Engineering, Southwest University of Science and Technology |
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| Abstract: | Because of the interference noise is often random and non-stationary, the traditional filtering method is difficult to remove it. To solve this problem, the algorithm of joint adaptive lattice (GAL-NLMS) is adopted in this paper. A 22 order GAL-NLMS algorithm is achieved in the PL part of the Zynq-7000 chip, the design of driver and interface design based on QT are achieved in the PS part of the chip. The processing speed can reach 175Mbs, and broadband adaptive noise cancellation system is realized in Zedboard which is the development platform. The system is tested using QPSK and 16QAM modulated signals and the results show that the system is effective. |
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| Keywords: | Non-stationary Adaptive GAL-NLMS Zedboard Noise cancellation |
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