Entities that map input signals to output signals.
A system maps an input signal to an output signal: y=H{x}. Examples: amplifier, filter, communication channel, car suspension. Classified as linear/nonlinear, time-invariant/variant, causal/noncausal, stable/unstable, memoryless/with memory.
An RC circuit is a system with voltage input and capacitor voltage output.
A system is anything that turns an input signal into an output signal, and modelling systems this way is the basis of control and filtering.
Entities that map input signals to output signals.
A system is anything that turns an input signal into an output signal, and modelling systems this way is the basis of control and filtering.
A mapping from input signals to output signals, which can be linear or nonlinear and can have memory or not.
No. A software filter or a mathematical model is also a system, which is why the same analysis applies to both.
Typical applications include modelling an amplifier as a system that maps input voltage to output voltage, treating a car suspension as a system from road bumps to body motion and describing a digital filter as a system acting on a sample stream.
Study "Signal operations" first (topic 7 of 101 in Signals, Control & Comms). It covers the groundwork this topic builds on.
Black-box description. Block diagrams. Interconnections.
An RC circuit is a system with voltage input and capacitor voltage output.
The next topic is "Linearity and time invariance", which builds directly on this one.
It is classed as Beginner in Signals, Control & Comms (topic 8 of 101). It is an entry-level topic. It relies only on basic school mathematics and the ideas introduced earlier in this discipline.
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