The bandwidth is the width of a specified frequency interval, . Its meaning depends on how the interval is selected: a signal bandwidth and an effective noise bandwidth can differ even for the same receiving system.
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In signal processing, **bandwidth** refers to the range of frequencies within a given band, particularly in relation to its use in transmitting signals. It is a crucial concept that helps determine the capacity of a communication channel to transmit information. ### Key Aspects of Bandwidth: 1. **Definition**: - Bandwidth is typically defined as the difference between the upper and lower frequency limits of a signal or a system.