The new techniques include oversampling technique in digitalization of seismic wave form, spectrum contraction technique in data - transmitting and error-controlling and so on.
这些新技术包括地震波形数字化的过采样技术，数据传输中使用的紧缩频谱调制技术和差错控制技术等。
2
In order to improve the accuracy of the estimator, oversampling technology is adopted.
为了提高估计器的精度，采用了过采样技术。
3
By oversampling on output signal, the information about unknown input signal and system can be gotten.