摘要
为了保护数字音频信息在传输过程中不被窃取,构造了一种数字音频信号加密算法,算法对数字音频信号进行时域频域分析,叠加处理和加噪处理,之后通过逆运算成功的恢复了原始信号。通过实验仿真,恢复的信号和原始信号相比,损失较小,证明了算法的有效性。
In order to protect the digital audio information in the process of transmission not to be stolen,a digital audio signal encryption algorithm is constructed. The algorithm analyzed the digital audio signal in time domain and frequency domain,stack and add the noise to it,then restore the original signal by inverse operation success.By experimental simulation,the recovery signal has little loss,which proves the validity of the algorithm.
作者
张晓峰
贾晓强
ZHANG Xiao-feng;JIA Xiao-qiang(Department of Computing Science,Weinan Vocational and Technical College,Weinan 714000,China;School of Network Security and Information,Weinan Normal University,Weinan 714099,China)
出处
《电子设计工程》
2018年第14期19-23,共5页
Electronic Design Engineering
基金
陕西省教育厅科研基金资助项目(17JK0278)
关键词
信息加密
MATLAB
傅里叶变换
时域
频域
information eneryption
MATLAB
Fourier transform
the time domain
frequency domain
