Remaining capacity of batteries based on RLS-Kalman filter

This paper components of internal resistance of batteries and its measurement principle and method were analyzed, presents a method of the lead-acid battery internal resistance measurement based on RLS-Kalman. It can Test the battery internal resistance can real-time display the remaining capacity of batteries, the method to guarantee the reliable of battery. This paper uses RLS-Kalman filter to effectively remove the inside of the channel noise, simulation operation shows that the system can decrease the bit error rate and improve the accuracy and stability of battery resistance testing.