What is the phase of a signal?

The phase involves the relationship between the position of the amplitude crests and troughs of two waveforms . Phase can be measured in distance, time, or degrees. If the peaks of two signals with the same frequency are in exact alignment at the same time, they are said to be in phase.

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What is frequency spectrum of noise?

The audio frequency spectrum represents the range of frequencies that the human ear can interpret . Sound frequency is measured in Hertz (Hz) unit. This audible frequency range, in the average person at birth, is from 20Hz to 20000Hz, or 20 kHz. The audio frequency spectrum is also known as sound frequency spectrum.

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What are the types of frequency spectrum?

The radio spectrum is the part of the electromagnetic spectrum with frequencies from 3 Hz to 3,000 GHz (3 THz). … IEEE radar bands. Band designationFrequency rangeExplanation of meaning of lettersVHF0.03 to 0.3 GHzVery High FrequencyUHF0.3 to 1 GHzUltra High FrequencyL1 to 2 GHzLong waveS2 to 4 GHzShort waveRadio spectrum – Wikipedia en.wikipedia.org › wiki › Radio_spectrum

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