In the design of cellular radio systems, powercontrol methods based on signal-to-interference ratio (SIR) measurement have been used widely.
在蜂窝无线通信系统设计中，基于信号干扰比(SIR)测量的功率控制方法得到广泛的应用。
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The simulation result shows that proportion differential control can improve the system stability and steering portability, and inhibit the vibration of steering wheel with big powerratio.