Querry regarding simulink . It is not giving the desired results.

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shailesh
shailesh 2014-6-13
回答： A Jenkins 2014-6-13
Algorithm 1.If signal value is in between 5 & -5 , it should be given directly as out put. 2.If signals value is greater than 5 or less than -5 , its rate of rise or rate fall should be constrained by rate limiter.

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回答（1 个）

A Jenkins
A Jenkins 2014-6-13
The syntax
(-5 < u1 < 5)
does not do what you think it does. You mean
(-5 < u1) & (u1 < 5).
MATLAB evaluates left to right so that the first part (-5 < u1) is either true or false, 1 or 0. Then you would have either (0 < 5) or (1 < 5), which is always true, and your switch will never change. See also Why is Answer to 3 < A < 7 Unexpected?
(Also, your model is aliasing. You need to set your max step size based on the frequency of your sign wave. Perhaps you have learned how to calculate the Nyquist rate?)

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