All-fiber displacement interference velocity measurement system data processing method research based on S-transformation

The all-fiber displacement interference speed measurement system provides an effective way to measure high velocity. It works by attracting instantaneous frequencies of complicated nonlinear FM signals. In view of the drawbacks in the present time-frequency analysis methods, a new way of how to apply the S-transformation to the all-fiber displacement interference speed measurement system is described. Emulational experiments show that the S-transformation and the generalized S-transformation has much application value in the all-fiber displacement interference velocity measurement system.