Time Domain Experimental Modal Analysis for Structures

This software is primarily designed for conducting time domain experimental modal analysis of structures, featuring program designs for single-input single-output (SISO), single-input multiple-output (SIMO), and multiple-input multiple-output (MIMO) configurations. Traditional modal analysis software typically relies on frequency domain methods that require initial Fourier transformation of sampled signals. However, our implementation directly processes measured time-domain signals without Fourier transformation, effectively avoiding accuracy degradation caused by signal truncation issues such as spectral leakage, side lobes, and low resolution. The core algorithm utilizes time-domain signal processing techniques that significantly reduce computational time while enabling online parameter identification of structures under real operating conditions. This implementation provides enhanced convenience for users through optimized computational efficiency and real-time monitoring capabilities.