I/Q信号详解Ifwethinkaboutpossiblesinewaveparametersthatwecanmanipulate,theequationabovemakesitclearwearelimitedtomakingchangestotheamplitude,frequency,andphaseofasinewavetoencodeinformation.Frequencyissimplytherateofchangeofphaseofasinewave(frequencyisthefirstderivativeofphase),