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What are the theorems of signals and systems?
1, the simplest is Nyquist's law. Sampling and reduction theorems of signals in film production and film playback. In Signals and Systems, the corresponding mathematical model is established, and then the results are analyzed and solved according to the mathematical model, so that the obtained results are physically explained and given the corresponding physical meaning.

2. The application of signals and systems in China's higher education is a compulsory core basic course for electronics majors. This course focuses on mathematical analysis, and the mathematical and physical methods and concepts involved are widely used in communication, signal and information processing, electronics, computer science and technology, automatic control, circuits and systems and many other fields.

syllabus

① Basic knowledge of signals and systems;

② Time domain analysis of continuous signals and systems;

③ Signal and system analysis in transform domain;

④ Time domain analysis of discrete signals and systems;

⑤ System function;

⑥ Analysis of signal and system state variables.