Method, system and storage medium for model predictive automatic gain control of satellite transponder under additive white gaussian noise jamming

A system, comprising:

• a memory, configured to store program instructions for performing a method for model predictive automatic gain control (AGC) of a satellite transponder under additive white Gaussian noise (AWGN) jamming, wherein the satellite transponder includes an AGC processor;
• and
• a processor, coupled with the memory and, when executing the program instructions, configured for:
• predicting a plurality of consecutive signal values by an autoregressive integrated moving average (ARIMA) model using data collected by an antenna receiver in the satellite transponder;
• calculating a signal average value of the plurality of consecutive signal values;
• calculating a gain control value using the signal average value of the plurality of consecutive signal values through a model predictive controller;
• if the gain control value is greater than a maximum control capability of the AGC, using the gain control value as a desired gain control value, wherein the maximum control capability is predefined in a lookup table (LUT);
• or if the gain control value is equal to or less than the maximum control capability, using a minimum difference between an estimated amplitude and each of reference amplitudes in the LUT as the desired gain control value;
• and
• calculating a new AGC gain for a current time step according to the desired gain control value and a corresponding AGC gain for a previous time step.

A non-transitory computer-readable storage medium, containing program instructions for, when being executed by a processor, performing a method for model predictive automatic gain control (AGC) of a satellite transponder under additive white Gaussian noise (AWGN) jamming, wherein the satellite transponder includes an AGC processor, the method comprising:

• predicting a plurality of consecutive signal values by an autoregressive integrated moving average (ARIMA) model using data collected by an antenna receiver in the satellite transponder;
• calculating a signal average value of the plurality of consecutive signal values;
• calculating a gain control value using the signal average value of the plurality of consecutive signal values through a model predictive controller;
• if the gain control value is greater than a maximum control capability of the AGC, using the gain control value as a desired gain control value, wherein the maximum control capability is predefined in a lookup table (LUT);
• or if the gain control value is equal to or less than the maximum control capability, using a minimum difference between an estimated amplitude and each of reference amplitudes in the LUT as the desired gain control value;
• and
• calculating a new AGC gain for a current time step according to the desired gain control value and a corresponding AGC gain for a previous time step.