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Everything about Bandwidth extension

Bandwidth extension of signal is defined as the deliberate process of expanding the frequency range (bandwidth) of a signal in which it contains an appreciable and useful content, and/or the frequency range in which its effects are such. Its significant advancement in recent years has led to the technology being adopted commercially in several areas including psychacoustic bass enhancement of small loudspeakers and the high frequency enhancement of coded speech and audio. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: Bandwidth extensionA 5-minute orientation
  2. Skim a recent paper: A 18–44 GHz Low Noise Amplifier With Input Matching and Bandwidth Extension TechniquesInfluential work since 2022
  3. Pick up a classic book: Data Communications and NetworkingThe most-reprinted book on the subject
  4. Read the landmark paper: Bandwidth Extension Techniques for CMOS AmplifiersCited 345 times
  5. Go sideways: Spectral band replicationA closely related topic
  6. Go sideways: Harmonic Vector Excitation CodingA closely related topic

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🏆 Landmark papers (most cited)

🆕 Influential since 2022

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