Negative Frequency Components

Some articles on frequency, negative frequency components, component:

Index Of Electronics Articles - F
... bit – Freenet – Free-space loss – Freeze frame television – Frequency assignment – Frequency averaging – Frequency counter – Frequency deviation – Frequency frogging – Frequency modulation ...
Analytic Signal - Negative Frequency Components
... Analytic signals are often shifted in frequency (down-converted) toward 0 Hz, which creates negative frequency components ... Another motive is to reduce the highest frequency, which reduces the minimum rate for alias-free sampling ... A frequency shift does not undermine the mathematical tractability of the complex signal representation ...
Power Inverter - Applications - Variable-frequency Drives
... A variable-frequency drive controls the operating speed of an AC motor by controlling the frequency and voltage of the power supplied to the motor ... In most cases, the variable-frequency drive includes a rectifier so that DC power for the inverter can be provided from main AC power ... Since an inverter is the key component, variable-frequency drives are sometimes called inverter drives or just inverters ...
Frequency Ranges
... The frequency range of a system is the range over which it is considered to provide a useful level of signal with acceptable distortion characteristics ... A listing of the upper and lower limits of frequency limits for a system is not useful without a criterion for what the range represents ... Allocation of radio frequency ranges to different uses is a major function of radio spectrum allocation ...
Distress Radiobeacon - Frequency - Cospas-Sarsat Incompatible Beacon Frequencies
121.5 MHz VHF ± 6 kHz (frequency band protected to ±50 kHz) (Satellite detection ceased on 1 February 2009, but this frequency is still used for short-range location ...

Famous quotes containing the words components, negative and/or frequency:

    Hence, a generative grammar must be a system of rules that can iterate to generate an indefinitely large number of structures. This system of rules can be analyzed into the three major components of a generative grammar: the syntactic, phonological, and semantic components.
    Noam Chomsky (b. 1928)

    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)