Structural dynamic deformation measurement signal processing method based on millimeter-wave radar

The invention provides a structure dynamic deformation measurement signal processing method based on an FMCW millimeter-wave radar, and the method comprises the following steps: 1, enabling the radarto receive an echo signal reflected by a target, processing the echo signal, and carrying out the discretization sampling to generate a complex signal sequence; 2, segmenting and rearranging the complex signal sequence to obtain a complex signal matrix; 3, carrying out circular fitting and parameter estimation, and correcting a complex signal; 4, extracting phase information of the corrected complex signal matrix; 5, performing inter-frame phase jump processing; and step 6, acquiring a structure dynamic deformation time domain signal. According to the invention, the FMCW millimeter-wave radaris used to carry out non-contact measurement of structure dynamic deformation, the distance unit where the target is located is accurately estimated, the phase information is extracted, the phase change is converted into the d