最不 重 要 位(LSB)方法DO是将秘密数据(水印数据)嵌入到载体数据中最简单的一种方法，它是在时域里隐藏数据。任何的秘密数据都可以看作是一串二进制位流，而音频文件的每一个采样数据也是以二进制数来表示。这样，可以将部分采样值的最不重要位用代表秘密数据的二进制位替换掉，以达到在音频信号中嵌入秘密数据的目的。-The most significant bits (LSB) method of DO is the secret data (watermark data) embedded into

LFM信号及回波的生成，时域及频谱分析，模糊度函数分析，时频分析，匹配滤波器能量检测、循环相关检测、及fmusic参数估计-LFM signal and the echo generation, time domain and spectral analysis, ambiguity function analysis, time-frequency analysis, the matched filter energy detection, loop correlation detection

对动态力信号的时域特征进行提取包括谐波特征，能量特征和小波特征等-Characterized in the time domain dynamic force signal feature extraction, including harmonics, energy and wavelet characteristics

OFDM整个系统的实现，包括时域信号波形，频谱，功率谱密度，-Quotient is a method of determining a value of a value that is a value of a value that is a value of a value that is a value of a value that is a value of a value that is a value of a value that is a value of a that is