基于回声隐藏的信息隐藏算法，是一种音频信号的水印技术，包括隐藏信息的嵌入和提取，以及对于噪声，MP3压缩，滤波，重采样和延迟攻击的模拟。-Based on echo hiding information hiding algorithm, is an audio signal watermarking techniques, including embedding and extracting hidden information, as well as for noise, MP3 compr

gps延迟锁定环中对热噪声的模拟，考虑了热噪声对跟踪精度的影响，很不错的-gps delay locked loop in the thermal noise of the simulation, taking into account thermal noise on the impact of tracking accuracy, very good