This paper gives a general introduction to the application of virtual instrument technique to the sampling of ECG. MATLAB is called to realize HRV quantitative analysis and intelligentized analysis through LabVIEW. The experiment results show the reliability of HRV analyses. So, LabVIEW-based HRV analyses can be applied to early diagnoses, monitoring and prognostic assessments of some diseases and to detecting the balance condition of automatic nervous system.

In this article,a new approach tosleep analysis based on fuzzy prediction theory is described.This article gives a general introduction todetection and processing of biological signals with LabVIEW technique.The designed fuzzy measurement system is applied tofuzzy prediction analysis of physiological signals.The experiment results show that our method of analysis is correct.SoLabVIEW-based fuzzy prediction analysis is more helpful for early diagnosis,monitoring and prognosis assessment of some diseases.The method might reflect the sleep state of SASpatient.