计算机工程与应用2009，Vol.45Issue(33)：87-89,3.DOI:10.3778/j.issn.1002-8331.2009.33.028
MBE的分析与优化技术的研究
Research on analysis and optimization of MBE
摘要
Abstract
The audio algorithm of Multi-Band-Excitation(MBE) is widely used in secret communication.Recently,secret-embedded audios based on MBE appear along with diversification of carrier.In order to ensure the safety of secret communication,the analysis and optimization of MBE algorithm are proposed.By the methods of optimizing the surd-sonant judge module,translating floating-point to fix-point,using iteration to realize evolution,inquiring table to realizing exceeding function and so on,experiments on the FPGA of SOC/Leon3 show that 45% of hardware resource is reduced and 29% of the real-time capability of algorithm is raised. These methods supplies a platform for steganalysis of MBE.关键词
多带激励语音压缩/牛顿迭代法/定点/Leon3/现场可编程门阵列(FPGA)Key words
Multi-Band-Excitation(MBE)/iteration/fix-point/leon3/Field-Programmable Gate Array(FPGA)分类
信息技术与安全科学引用本文复制引用
徐雷,郭立,陈希,杨帆..MBE的分析与优化技术的研究[J].计算机工程与应用,2009,45(33):87-89,3.基金项目
国家自然科学基金(the National Natural Science Foundation of China under Grant No.60772032). （the National Natural Science Foundation of China under Grant No.60772032）
