时间扩展 meaning in English
time dilation
time expansion
Examples
- Diversity receiving technique for synchronous time spreading signal in time - varying fading channels
时变衰落信道中同步时间扩展信号的分集接收技术 - The research consists of several aspects as follows : the characteristics of uwac is analyzed , including the multi - path effect , the doppler shift effect , etc . . then the mathematics " model of uwac is given
研究内容主要包括以下几个方面： ?分析了多途时间扩展、多普勒频率扩展等水声信道的物理特性及水声信道的数学模型。 - The optical channel models for airborne submarine laser communication are built . the multipath time spreading of signal pulse is studied . the waveform of received signals in receiver in submarine laser communication system is analyzed and simulated
通过蒙特卡罗方法的模拟研究，建立了机载激光对潜通信的光脉冲传输模型，研究了信号光脉冲的时间扩展，分析并模拟了接收面上的接收波形。 - Two approaches to improve the robustness of the detector , each based on a different theirs distortion mechanism . one is based on the modeling as fast fading distortion ( ffd ) whose optimum detector is the segmented replica correlator ( src ) . the second approach is replica correlation integration ( rci ) for time spreading channel ( tsd )
从频率扩展信道( fastfadingdistortion ， ffd )和时间扩展信道( timespreadingdistortion , tsd )的形成机理出发建立了目标回波的数学模型，指出ffd和tsd的最佳检测器分别为分段副本相关器( src )和副本相关积分器( rci ) 。 - The interpolate technology just like a " ruler " , the resolving power of the " ruler " affect that the sampling points are arrayed correctly on time axis , and is determined by the multiple of the double slope integral amplifier . so it is core in the whole project . the project apply the complicated program logical device ( cpld )
内插技术的应用使得随机采样理论能够得以实现，内插技术相当于测量用的“尺子” ， “尺子”最小分辨能力决定了最后采样点重新在时间轴上位置排列的真实可靠程度，这里尺子的最小分辨能力是由双斜率积分时间扩展器放大倍数决定的，所以说该模拟充放电放大电路在整个方案中是个很关键的部分。