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+Cascade is a program for analyzing the noise and distortion
+performance of a cascade of elements in an electronic system. A
+typical application of cascade is the analysis of a receiver. A text
+description of the receiver block diagram consisting of things like
+amplifiers, mixers, and filters is entered into cascade. Each element
+is characterized by its gain and optionally noise figure, and third
+order intercept point. The program then analyzes the system and
+produces a report detailing the performance at each stage.
+
+A summary is produced which shows the relative contributions to the
+total system performance of each block. This allows easy
+identification of what limits system performance.