METHOD AND APPARATUS FOR CALIBRATION OF A MULTI CHANNEL FIBER OPTIC INTERFEROMETRIC SENSOR SYSTEM IN A SIGNAL PROCESSING SYSTEM

摘要

A calibration method for laser modules in a signal processing system, comprising the steps of: selecting a next laser module to be calibrated; determining if the selected laser module has been calibrated before; if not calibrated before, sending a saved phase modulation coefficient to the selected laser module to be used for phase modulation of the laser module output signal; if calibrated before, determining a new phase modulation coefficient to be used for phase modulation of the laser module output signal; repeating the above steps for each laser module in the signal processing system until all laser modules are calibrated; and saving the new phase modulation coefficients for all laser modules.