however, the instantaneous bandwidth of signals is restricted for general phased array because of its transition time and aperture effect 但是,基于移相器的普通相控阵天线在进行宽带宽角扫描时,由于渡越时间和孔径效应的影响,使信号的瞬时带宽受限。
this inverse filter can consider the efficacious bandwidth of signal tested and the character of measurement system synchronously so we can acquire the estimating value of signal tested and the error is little 这种反滤波器兼顾被测信号的有效带宽和测试系统的特性,能够得到被测信号误差很小的估计值。
according to transcendent knowledge, this algorithm classifies modulation systems by computing instantaneous frequency and instantaneous bandwidth of signal and regarding them as modulation parameters 该算法凭借先验知识,通过计算信号的瞬时频率和瞬时带宽,并以此作为制式识别参数来判断信号的调制类型。