Patent ID: 8725429

Claim:
A method for accurate reconstruction of structural response due to external excitation, wherein the structure includes at least three sensors, the method comprising: identifying spectral peaks and spectral bands in the structure's vibration data, wherein, for each spectral band, the following steps are performed: a. performing modal identification on measured vibration data, whereby a natural frequency and a modeshape of the empirical dominant mode is obtained, b. determining a corresponding natural frequency and modeshape of an analytical dominant mode having the best shape correlation to the empirical dominant mode, c. defining a set of candidate basis vectors from a plurality of modes with frequencies nearest a natural frequency of the analytical dominant mode, d. defining a set of participating basis vectors taken from the set of candidate basis vectors that results in the lowest error between reconstructed vibration data from a data set having data from some sensors and missing data from at least one omitted sensor and measured vibration at the at least one omitted sensor, and repeating the above steps for each independent direction of vibration.