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  1. [remote sensing] In remote sensing, any disturbance in a frequency band.
  2. [data quality] Any irregular, sporadic, or random oscillation in a transmission signal.
  3. [telecommunications] Random or repetitive events that interfere with communication.
  4. [data quality] In a raster, irrelevant or meaningless cells that exist due to poor scanning or imperfections in the original source document. Media/noise.gif

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