On consistency of the ensemble averages of plasma turbulent fluctuation diagnostic data with the turbulent concepts

The basic questions in the ensemble averages of plasma micro-turbulence data are discussed.It is proposed that the ratio of the fluctuation average to its rms value be implemented to inspect its random degree if the time-average is adopted as the ensemble average.The precision of the approximation,characterizing the ensemble-average with samples-average,is determined by the relative magnitude of the total data-time length and the fluctuation correlation time.It appears that the data analysis is not always consistent with fundamental plasma turbulence concepts in some cases,and therefore the related discussion and comments are made.