Macro Economy - Signal Analysis Model

This paper uses the view and theory of signals and systems to analyze the classical linear macroeconomic model put forward by Keynes. Through the analysis of the model from system angle, we can analyze the influence of system parameters and input signal on macroeconomic operation very clearly. Through the analysis of system structure and system response characteristics, we determine the influence of system parameters on economic operation situation. The results show that this new method overcomes a series of disadvantages of traditional methods of directly using matrix principle to analyze the model.