Linear Chirp - MapleSim Help

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Linear Chirp

Generates a real sine signal, which varies linearly in frequency over time

 

Description

Connections

Parameters

See Also

Description

The Linear Chirp component generates a sine wave signal at the output, y. Its equation is

y&equals;&lcub;amplitudesin2&pi;f0 &plus; k2tT0tT0&plus;offsettT0 and tT0&plus;Troffsett<T0 or t &gt; T0&plus;Tr

where k  is the rate of change of frequency with respect to time,

k  &equals; f1  f0Tr

The instantaneous frequency, f, of the generated sine wave varies linearly from f0 at time T0 to f1 at time T0&plus;Tr and is given by

f  &equals; f0&plus;ktT0

Connections

Name

Description

y

Real output signal connection    

f

Instantaneous frequency

Parameters

Symbol

Default

Units

Description

Modelica ID

amplitude

1

-

Amplitude of the sine wave

amplitude

f0

1

Hz

Initial frequency of the sine wave

freqHz1

f1

10

Hz

Final frequency of the sine wave

freqHz2

offset

0

-

Offset of the output signal

offset

T0

0

s

Time offset

startTime

Tr

2

s

Duration of the chirp

duration

See Also

Real Signal Sources

Boolean Signal Sources

Integer Signal Sources

Signal Blocks Overview