频带信号，是指如果一个信号只包含了一种频率的交流成份或者有限几种频率的交流成份，我们就称这种信号叫做频带信号。
... 宽带信号 broadband signal; wideband signal 频带信号 signal, baseband 双边带信号 double sideband signal ...
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研究了水下宽频带信号时延和尺度的估计问题。
The estimation of time delay and scale of wideband echo is addressed.
利用希尔伯特变换解调分析各频带信号，得到对应频带信号的包络谱；
The reconstruction signals were demodulated with Hilbert transform, and envelope spectrum at each band was obtained.
重建宽频带信号的唯一办法就是按照正确的时间差把它的所有窄频带组成部分组合起来。
The only way to reconstruct a broad-band signal is to add its narrow-band components together by taking into account the correct time-lag between them.
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