因此，采用AD器件和数字滤波器技术实现混频等频率变换功能，是一种比较先进和新颖并且实际可行的方法。
Therefore, taking advantage of AD device and digital filtering technique to realize mixing and other frequency transformation function is a comparatively advanced, novel and practical method.
车辆行驶状况路上调查采用分时段交错法进行，并使用具有高精度的可跟踪滤波的非接触式速度传感器等先进设备采集数据。
Vehicle real driving investigation comes up with time section cross method, and USES advanced instruments such as non-contacted speed sensor with tracking filter etc.
这种相关器与一般的二元联合变换相关器的差别在于联合功率谱作二元处理之前先进行高通滤波。
The difference between the proposed correlator and BJTC is that joint power spectrum is processed by using high pass filtering before applying binarization.
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