| The corresponding data of infrasound transmission characteristic can be achieved through test analysis of infrasound researching infrasound weapons, and the performance of infrasound weapons can be judged in this way.In this paper, the signal collection system and analytic system of transmission characteristic of infrasound are designed, which are used for testing the performance of infrasound. To the signal collection system of infrasound, it is able to sample 10 input signals, the converter provide 16-bit analog-to-digital conversion and it has function of serial communication to computer. However, the analytic system of transmission characteristic of infrasound is based upon the theory of digital signal processing and infrasound measurement. Which MATLAB analysis platform has many functions, such as weight processing, spectrum analysis and power spectrum analysis etc. Furthermore, the analysis results can be given by the analysis platform with figure and list.After testing by the system, the infrasound weapons can bring infrasound that frequency range is from 4Hz to 12Hz and maximal pressure level reaches 126.7dB. Moreover, the infrasound has the penetrate capability which is not be shielded and accord with infrasound characteristic.
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