Affiliations: [a] School of Computer Science & Software, Tianjin Polytechnic University, Tianjin, China | [b] Digital Library, Tianjin Polytechnic University, Tianjin, China | [c] Engineering Teach Practice Training Center, Tianjin Polytechnic University, Tianjin, China | [d] Privacy Office, Tianjin Polytechnic University, Tianjin, China
Abstract: Huge and abundant measured information from a structural health monitoring
system contain a large amount of noise and uncertain information. Multi-rate data
processing can reduce data processing time and meet the real-time requirements in health monitoring systems. Multi-rate digital signal processing includes extraction and
interpolation. By frequency domain decomposition method multi-rate systems is converted to
an equivalent single-rate system, and simulated with simulink of MATLAB. In
comparison with the simulation results of multi-rate system and single-rate
system, we can conclude that in a multi-rate system the stability margin is
increased, system response is accelerated and overshoot is reduced, so the
dynamic quality of the system is improved.
Keywords: Carbon nanofibers sensor, frequency domain division, multi-rate sampled, simulate
