हिंदी माध्यम नोट्स
ENERGY AND POWER SIGNALS , Definition , Average Normalized Power , Mathematical Representation
ENERGY AND POWER SIGNALS
In this article, let us define energy and power signals in detials.
Power signal : Definition
A signal is called as a power signal if its average normalized power is non-zero and finite. It has been observed that almost all the periodic signals are power signals.
Energy signal: Definition
A signal having a finite non-zero total normalized energy is called as an energy signal. It has been observed that almost all the non-periodic signals defined over a finite period, are energy signals. As these signals are defined over a finite period, they are called as time limited signals.
1.17.1 Average Normalized Power
We know that the average normalized power is given by
Equation
The above definition can be generalized for a complex signal x(t) as under:
Equation ……(1.2)
For a periodic signal, with a period T0, equations (1.1) and (1.2) get modified to,
Equation ……(1.3)
For a complex periodic signal x(t), the average normalized power is given by,
Equation ……(1.4)
1.17.2 Energy : Mathematical Representation
The total normalized energy for a real signal x(t) is given by,
Equation ……(1.5)
However, if the signal is complex then the expression for total normalized energy is given by,
Equation ……(1.6)
These equations indicate that the energy is the area under the x2(t) curve over hence it is always positive.
Recent Posts
सती रासो किसकी रचना है , sati raso ke rachnakar kaun hai in hindi , सती रासो के लेखक कौन है
सती रासो के लेखक कौन है सती रासो किसकी रचना है , sati raso ke…
मारवाड़ रा परगना री विगत किसकी रचना है , marwar ra pargana ri vigat ke lekhak kaun the
marwar ra pargana ri vigat ke lekhak kaun the मारवाड़ रा परगना री विगत किसकी…
राजस्थान के इतिहास के पुरातात्विक स्रोतों की विवेचना कीजिए sources of rajasthan history in hindi
sources of rajasthan history in hindi राजस्थान के इतिहास के पुरातात्विक स्रोतों की विवेचना कीजिए…
गुर्जरात्रा प्रदेश राजस्थान कौनसा है , किसे कहते है ? gurjaratra pradesh in rajasthan in hindi
gurjaratra pradesh in rajasthan in hindi गुर्जरात्रा प्रदेश राजस्थान कौनसा है , किसे कहते है…
Weston Standard Cell in hindi वेस्टन मानक सेल क्या है इससे सेल विभव (वि.वा.बल) का मापन
वेस्टन मानक सेल क्या है इससे सेल विभव (वि.वा.बल) का मापन Weston Standard Cell in…
polity notes pdf in hindi for upsc prelims and mains exam , SSC , RAS political science hindi medium handwritten
get all types and chapters polity notes pdf in hindi for upsc , SSC ,…