Atomic gas chamber temperature control method based on extended state observer

**An atomic gas chamber temperature control method based on an extended state observer can improve the anti-interference capability of an atomic gas chamber temperature control system so as to carry out high-precision control and error suppression, and is characterized by comprising the following steps: arranging a control algorithm module based on the extended state observer and a PID controller on a temperature control circuit board of the temperature control system; a first differential node is arranged in front of the input end of a PID controller, a second differential node is arranged behind the output end of the PID controller, the first differential node inputs an obtained error signal e = y-y * into the PID controller to generate a first control quantity u0, y * is a set expected temperature value, y is an actual temperature value, and a second control quantity u0 is generated. The second differential node inputs the obtained second control quantity # imgabs0 # into the temperature control system and