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:
“The negative always wins at last, but I like it none the better for that.”
—Mason Cooley (b. 1927)
“The frequency of personal questions grows in direct proportion to your increasing girth. . . . No one would ask a man such a personally invasive question as “Is your wife having natural childbirth or is she planning to be knocked out?” But someone might ask that of you. No matter how much you wish for privacy, your pregnancy is a public event to which everyone feels invited.”
—Jean Marzollo (20th century)