RIU 320 Lecture Notes - Lecture 54: Dynamic Range, Sonographer
3 Jun 2020
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Document Summary
Most devices can accurately process signals only within a particular range. Dynamic range is a method of describing the extent to which a signal can vary and still maintain accuracy. In effect, we can think of dynamic range as number of available choices between 30 and 300 pounds. For example, consider a typical bathroom scale that accurately weighs objects. Signals (weights) below 30 pounds are too weak. The needle on the scale does not move and the information is disregarded as noise. Weak signals are below the system"s threshold. pounds are displayed as equal to 300 pounds. Signals (weights) above 300 pounds are too strong. Thus, a scale"s range of accurate measurement is 30 to 300 pounds- excellent for measuring the weight of an adult, but not suitable for measuring the weight of a bunch of grapes or an automobile. Dynamic range: a method of reporting the extent to which a signal can vary and still be accurately measured.
