datacontrol meaning in English

数据库控制

The frequency response of sampled - data control systems is studied in detail . the presently accepted definition of the frequency response and the relatedcomputation with time - domain and frequency - domain lifting techniques are analyzedand discussed , and it is pointed out that the frequency response thus obtained isindeed the frequency response of the lifted system . because the frequency responseof the system can not be preserved by lifting , the frequency response of the liftedsystem has nothing to do with the real frequency response of the sampled - datacontrol system
对目前公认的频率响应的定义和计算方法? ?时间域提升法和频域提升法进行了分析,指出这些算法所给出的频率响应,实质上是提升系统的频率响应,由于提升并不能保证频率特性不变,所以提升系统的频率响应也就不是采样控制系统的真正的频率响应。