Negative Frequency
The concept of negative and positive frequency can be as simple as a wheel rotating one way or the other way. A signed value of frequency indicates both the rate and direction of rotation. The rate is expressed in units such as revolutions (aka cycles) per second (hertz) or radian/second (where 1 cycle corresponds to 2π radians).
Read more about Negative Frequency: Sinusoids, Complex Sinusoids, Sampling of Positive and Negative Frequencies and Aliasing, Negative Frequency As A Matched Filter For Positive Frequencies
Famous quotes containing the words negative and/or frequency:
“In a country where misery and want were the foundation of the social structure, famine was periodic, death from starvation common, disease pervasive, thievery normal, and graft and corruption taken for granted, the elimination of these conditions in Communist China is so striking that negative aspects of the new rule fade in relative importance.”
—Barbara Tuchman (1912–1989)
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