The SWEEP (x, a, x0, f0, x1, f1, dx) function returns a constant amplitude sinusoidal function with a linearly increasing frequency over a range of the independent variable.
Format
SWEEP (x,a,x0,f0,x1,f1,dx)
Arguments
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x
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The independent variable. You can enter a valid expression for the independent variable such as 2*TIME.
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a
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The amplitude of the sinusoidal function.
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x0
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The value of the independent variable at which the function begins.
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f0
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The initial sweep frequency of the sinusoidal function in units of cycles per units of the independent variable.
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x1
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The value of the independent variable at which the function ends.
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f1
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The final sweep frequency in units of cycles per units of the independent variable.
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dx
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The positive increment defining x0+dx as the value of the value of the independent variable where the sweep function becomes fully active.
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Function
SWEEP (x,a,x0,f0,x1,f1,dx) =
STEP5(x,0,0,dx,1)*a*sin(2Π *freq(x))
where
freq(x) =
f0*x
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x ≤ x0
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f0*(x-x0)+((f1-f0)/(2*(x1-x0)))(x-x0)2+f0*x0
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x0 < x < x1
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f1*x-(f1-f0)/2)*(x1+x0)
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x ≥ x1
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