Development Of Real-time Dynamic Signal Analyzer

The technology of signal analysis has been already widely applied in the domains of correspondence, radar, earthquake, remote sensing, biomedical science, machine, etc. Dynamic signal analyzer includes multiplicate functions and technique, such as signal generator, signal acquisition, digital signal processing, etc. It is an ideal tool used for noise analysis, vibration analysis, model analysis, electronic design and acoustics test. It is suitable for signal analysis under 100kHz in the time and frequency domain. It is widely applied to product quality testing, control of vibration and diagnosis testing in the high-tech domain of computer manufacture, automobile industry, aviation aerospace, war industry, electron, correspondence, etc.Dynamic signal analyzer realizes the theory and technology of signal processing, and it can analyze the physical characteristic and parameter of electrical signal in the time, frequency, amplitude and time/frequency domain. Dynamic signal analyzer can either display the results in frequency, amplitude and phase; or display power spectral density, correlation, probability density, etc, which are calculated in the mathmatics.Presently, most available productors belong to foreign corporations. Furthermore they are narrow in frequency range, low real-time processing ability and expensive in price. Therefore, there is benefit to develop independent dynamic signal analyzer, which has a lot of advantages, such as wide dynamic range, real-time performance, wide frequency range, high signal noise ratio, multi-function, portability and so on. The thesis introduced a detail design scheme of real-time dynamic signal analyzer after a lot of study. The whole system is composed of real-time dynamic signal analyzer and high precision signal generator. The analyzer is based on high precision signal acquisition, digital signal processing (DSP), USB2.0 controllor and virtual instrument (LabVIEW).The signal source is based on high precision signal...