Furthermore, it is very difficult to obtain a meaningful model of the PLCC channel, due to the time-variance of this channel.
此外，得到PLCC渠道的一个意味深长的模型，由于这种渠道的时间变化是非常难的。
2
With separately adapting of the control network and the model network in control, the problem of time-variance of plant parameters is solved, and the robustness of whole system is improved obviously.