Sinusoid
The sinusoid (adjective sinusoidal ) is a sinusoidal function derived from the sine function by scaling of amplitude and frequency and phase shifting is formed. It forms the basis of the representation in the frequency domain .
definition
The sinusoid is defined by
- ,
in which
- the scaling of the amplitude ,
- the scaling of the angular frequency
- the phase shift and
- the absolute term
is. In electrical engineering , the absolute term is the constant component over time .
cosine
Since one function of the form is also a sinusoid, the other trigonometric functions are not.
Web links
- Sinusoid . In: Michiel Hazewinkel (Ed.): Encyclopaedia of Mathematics . Springer-Verlag , Berlin 2002, ISBN 978-1-55608-010-4 (English, online ).