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  2. MUSIC (algorithm) - Wikipedia

    en.wikipedia.org/wiki/MUSIC_(algorithm)

    Schmidt (1977), while working at Northrop Grumman and independently Bienvenu and Kopp (1979) were the first to correctly exploit the measurement model in the case of sensor arrays of arbitrary form. Schmidt, in particular, accomplished this by first deriving a complete geometric solution in the absence of noise, then cleverly extending the ...

  3. Arbitrary waveform generator - Wikipedia

    en.wikipedia.org/wiki/Arbitrary_waveform_generator

    An arbitrary waveform generator (AWG) is a piece of electronic test equipment used to generate electrical waveforms. [ 1 ] [ 2 ] [ 3 ] These waveforms can be either repetitive or single-shot (once only) in which case some kind of triggering source is required (internal or external).

  4. Signal generator - Wikipedia

    en.wikipedia.org/wiki/Signal_generator

    An arbitrary waveform generator (AWG or ARB) is a sophisticated signal generator that generates arbitrary waveforms within published limits of frequency range, accuracy, and output level. Unlike a function generator that produces a small set of specific waveforms, an AWG allows the user to specify a source waveform in a variety of different ways.

  5. Direct digital synthesis - Wikipedia

    en.wikipedia.org/wiki/Direct_digital_synthesis

    Direct digital synthesis (DDS) is a method employed by frequency synthesizers used for creating arbitrary waveforms from a single, fixed-frequency reference clock. DDS is used in applications such as signal generation , local oscillators in communication systems, function generators , mixers, modulators , [ 1 ] sound synthesizers and as part of ...

  6. Function generator - Wikipedia

    en.wikipedia.org/wiki/Function_generator

    Arbitrary waveform generators may have distortion less than -55 dB below 50 kHz and less than -40 dB above 50 kHz. Some function generators can be phase locked to an external signal source, which may be a frequency reference or another function generator. Amplitude modulation (AM), frequency modulation (FM), or phase modulation (PM) may be ...

  7. Frequency synthesizer - Wikipedia

    en.wikipedia.org/wiki/Frequency_synthesizer

    A frequency synthesizer is an electronic circuit that generates a range of frequencies from a single reference frequency. Frequency synthesizers are used in devices such as radio receivers, televisions, mobile telephones, radiotelephones, walkie-talkies, CB radios, cable television converter boxes, satellite receivers, and GPS systems.

  8. Equalization (audio) - Wikipedia

    en.wikipedia.org/wiki/Equalization_(audio)

    A plot of the system's net frequency response would be a flat line, as its response at any frequency would be equal to its response at any other frequency. Hence the term equalization. Later the concept was applied in audio engineering to adjust the frequency response in recording, reproduction, and live sound reinforcement systems.

  9. Glossary of electrical and electronics engineering - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_electrical_and...

    arbitrary waveform generator A type of signal generator that can generate almost any waveform. arc converter A device once used to generate radio waves. arc furnace A furnace that melts material by use of an electric arc. arc lamp An electric lamp that generates light from an electric arc. arc welder

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