Minimum Shift Keying MSK

Опубликовано: 03 Май 2022
на канале: deva Sena

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Minimum Shift Key Modulation is another type of digital modulation technique used to convert a digital signal into analog signals.
It is also called Minimum Shift Keying (MSK) or Advance Frequency Shift Keying because it is a type of continuous-phase frequency-shift keying.
MSK is highly suitable for cellular mobile communication.
The Minimum shift Keying (MSK) is a special type of Continuous Phase Frequency Shift Keying (CPFSK) technique.

Here the peak frequency deviation is one-fourth of the bit rate.
In CPFSK technique, the modulation index is m =0.5 or if the frequency spacing ∆𝒇 is equal to 𝟏/(𝟐𝑻_𝒃 ).
Such a special case of CPFSK is termed as Minimum Shift Keying (MSK).
The frequency spacing ∆𝒇 is the minimum shift that permits coherent detection of the orthogonal signals.

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