TRANSMISSION POWER CONTROL METHOD BY FUZZY CONTROL

摘要

PURPOSE:To attain more flexible, broad and accurate transmission power control by applying fuzzy set processing to a power control range of a power module so as to implement ambiguity separation and implementing fuzzy deduction based on a control rule corresponding to each fuzzy set subjected to ambiguity separation. CONSTITUTION:An output power of a power module 11 outputting a transmission power subject to power control is detected and a deviation between the output power and an object output power level is calculated. Then a power control range of the power module 11 is subject to fuzzy set processing to apply ambiguity separation to each based on the calculated deviation and a power control manipulated variable with respect to the output power. Fuzzy deduction is implemented based on a control rule corresponding to each fuzzy set subject to ambiguity separation to decide a power control variable of a transmission power of next stage. Thus, the more flexible, broad and accurate transmission power control is applied even to a change in the dynamic characteristic due to dispersion in ambient temperature and of quality of each component.