In this paper, a general description of diagnostic method for analysing pathological tremors of human limbs is presented along with hardware and software tools. Measurement system is based on piezoelectric accelerometers. Their output signals are transmitted through charge amplifiers to the input of A/C converter card acting as a computer interface. Specially designed software is capable of determining several parameters of tremor signals as diagnostic parameters in diseases of nervous system.
The possibilities of the application of higher-order statistics in modelling of hand tremor time series have been presented. Initial tests for fundamental properties of time series, i. e. gaussianity and linearity have been conducted. The results enable the choice of the proper model as well as the methods of its identification.