Chapter 13
Introduction to Signals and Systems
Sygnał i system
Signals are sets of data or information.
One-dimensional signals include single-variable functions, such as the variations in air pressure over time in ...
Klasyfikacja sygnałów
Signals are categorized as Continuous-time or discrete-time, Periodic or aperiodic, Analog or digital, and Causal or noncausal.
A continuous-time signal ...
Sygnały energii i mocy
Consider an electric system with a resistor. Here, the voltage and current signals enable power and energy measurement across the resistor.
For a ...
Sygnały parzyste i nieparzyste
An even signal, either in continuous-time or discrete-time, is defined as a signal that matches its own time-reversed version.
Even signals are ...
Podstawowe ciągłe sygnały czasowe
Basic continuous-time signals include the unit step function, unit impulse function, and unit ramp function. These are collectively referred to as ...
Funkcja impulsu prostokątnego i trójkątnego
The unit rectangular pulse function is mathematically represented by the rectangular function centered at the origin with a height of one unit.
Two ...
Sygnały wykładnicze i sinusoidalne
The exponential function serves as an essential tool for characterizing waveforms that rise and decay rapidly. This function is defined using the ...
Podstawowe dyskretne sygnały czasowe
The unit step sequence is expressed as 1 for zero and positive values of integer 'n'. This can be graphically displayed using a set of eight ...
Podstawowe operacje na sygnałach
Basic signal operations are time reversal, scaling, shifting, and amplitude transformations.
Time reversal mirrors a continuous-time signal about the ...
Klasyfikacja systemów-I
Linearity is a system property with a direct input-output relationship, combining homogeneity and additivity.
Homogeneity dictates that if an input is ...
Klasyfikacja Systemów-II
Continuous-time systems have continuous input and output signals, with time measured continuously, and are generally defined by differential or algebraic ...
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