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What expression can I use in matlab to remove the negative component of a sine wave so it can look like the picture below?
What is the implication of supplying power the other way on this circuit?Amplitude modulator for a sine wave generatorSawtooth/ramp waves with fixed amplitude from sine or square clock source?Why implement microcontroller in FPGA?How does one approach designing an amplifier using BJTs to drive an 8 ohm speaker?Need help designing headphone amplifier circuitHow to shift level of my AC signal compared to another AC signal?Piezo speaker driver not giving full differential voltage - why?What physical factor affects the antenna's bandwidth?An integrator design
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The image shows a sine wave is obtained using MATLAB. I would like to know what they possibly multiplied or what expression could one use in MATLABto get this wave instead of a complete sine wave.
design
asked Apr 24 at 9:26
SignalSignal
22
New contributor
Signal is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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The image shows a sine wave is obtained using MATLAB. I would like to know what they possibly multiplied or what expression could one use in MATLABto get this wave instead of a complete sine wave.
design
asked Apr 24 at 9:26
SignalSignal
22
New contributor
Signal is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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Request @Signal to mark an answer as accepted if they are satisfied with their application, to help any future readers
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– Shreyas
Apr 24 at 10:45
1
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@Shreyas It's customary to wait at least 24 hours after the question has been asked before accepting an answer.
$endgroup$
– pipe
Apr 24 at 12:15
add a comment |
$begingroup$
The image shows a sine wave is obtained using MATLAB. I would like to know what they possibly multiplied or what expression could one use in MATLABto get this wave instead of a complete sine wave.
design
asked Apr 24 at 9:26
SignalSignal
22
New contributor
Signal is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
The image shows a sine wave is obtained using MATLAB. I would like to know what they possibly multiplied or what expression could one use in MATLABto get this wave instead of a complete sine wave.
design
design
asked Apr 24 at 9:26
SignalSignal
22
New contributor
Signal is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked Apr 24 at 9:26
SignalSignal
22
New contributor
Signal is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked Apr 24 at 9:26
SignalSignal
22
New contributor
Signal is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked Apr 24 at 9:26
SignalSignal
22
asked Apr 24 at 9:26
SignalSignal
22
22
New contributor
Signal is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Signal is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Signal is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$begingroup$
Request @Signal to mark an answer as accepted if they are satisfied with their application, to help any future readers
$endgroup$
– Shreyas
Apr 24 at 10:45
1
$begingroup$
@Shreyas It's customary to wait at least 24 hours after the question has been asked before accepting an answer.
$endgroup$
– pipe
Apr 24 at 12:15
add a comment |
$begingroup$
Request @Signal to mark an answer as accepted if they are satisfied with their application, to help any future readers
$endgroup$
– Shreyas
Apr 24 at 10:45
1
$begingroup$
@Shreyas It's customary to wait at least 24 hours after the question has been asked before accepting an answer.
$endgroup$
– pipe
Apr 24 at 12:15
$begingroup$
Request @Signal to mark an answer as accepted if they are satisfied with their application, to help any future readers
$endgroup$
– Shreyas
Apr 24 at 10:45
$begingroup$
Request @Signal to mark an answer as accepted if they are satisfied with their application, to help any future readers
$endgroup$
– Shreyas
Apr 24 at 10:45
1
1
$begingroup$
@Shreyas It's customary to wait at least 24 hours after the question has been asked before accepting an answer.
$endgroup$
– pipe
Apr 24 at 12:15
$begingroup$
@Shreyas It's customary to wait at least 24 hours after the question has been asked before accepting an answer.
$endgroup$
– pipe
Apr 24 at 12:15
add a comment |
2 Answers
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I don't know MatLab but I suspect that (y + |y|)/2 (where |y| is the absolute value of the function) would do the trick.
When the function is positive the two halves add to give a regular sine. When the function is negative the function and absolute value cancel out.
answered Apr 24 at 9:45
TransistorTransistor
89.9k787193
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add a comment |
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The matlab way, using logical indexing:
t = -4*pi:.01:4*pi;
a = sin(t);
a(a <= 0) = 0;
plot(a)
answered Apr 24 at 11:39
Vicente CunhaVicente Cunha
1,967411
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add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
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votes
active
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active
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$begingroup$
I don't know MatLab but I suspect that (y + |y|)/2 (where |y| is the absolute value of the function) would do the trick.
When the function is positive the two halves add to give a regular sine. When the function is negative the function and absolute value cancel out.
answered Apr 24 at 9:45
TransistorTransistor
89.9k787193
$endgroup$
add a comment |
$begingroup$
I don't know MatLab but I suspect that (y + |y|)/2 (where |y| is the absolute value of the function) would do the trick.
When the function is positive the two halves add to give a regular sine. When the function is negative the function and absolute value cancel out.
answered Apr 24 at 9:45
TransistorTransistor
89.9k787193
$endgroup$
add a comment |
$begingroup$
I don't know MatLab but I suspect that (y + |y|)/2 (where |y| is the absolute value of the function) would do the trick.
When the function is positive the two halves add to give a regular sine. When the function is negative the function and absolute value cancel out.
answered Apr 24 at 9:45
TransistorTransistor
89.9k787193
$endgroup$
I don't know MatLab but I suspect that (y + |y|)/2 (where |y| is the absolute value of the function) would do the trick.
When the function is positive the two halves add to give a regular sine. When the function is negative the function and absolute value cancel out.
answered Apr 24 at 9:45
TransistorTransistor
89.9k787193
answered Apr 24 at 9:45
TransistorTransistor
89.9k787193
answered Apr 24 at 9:45
TransistorTransistor
89.9k787193
answered Apr 24 at 9:45
TransistorTransistor
89.9k787193
89.9k787193
add a comment |
add a comment |
$begingroup$
The matlab way, using logical indexing:
t = -4*pi:.01:4*pi;
a = sin(t);
a(a <= 0) = 0;
plot(a)
answered Apr 24 at 11:39
Vicente CunhaVicente Cunha
1,967411
$endgroup$
add a comment |
$begingroup$
The matlab way, using logical indexing:
t = -4*pi:.01:4*pi;
a = sin(t);
a(a <= 0) = 0;
plot(a)
answered Apr 24 at 11:39
Vicente CunhaVicente Cunha
1,967411
$endgroup$
add a comment |
$begingroup$
The matlab way, using logical indexing:
t = -4*pi:.01:4*pi;
a = sin(t);
a(a <= 0) = 0;
plot(a)
answered Apr 24 at 11:39
Vicente CunhaVicente Cunha
1,967411
$endgroup$
The matlab way, using logical indexing:
t = -4*pi:.01:4*pi;
a = sin(t);
a(a <= 0) = 0;
plot(a)
answered Apr 24 at 11:39
Vicente CunhaVicente Cunha
1,967411
answered Apr 24 at 11:39
Vicente CunhaVicente Cunha
1,967411
answered Apr 24 at 11:39
Vicente CunhaVicente Cunha
1,967411
answered Apr 24 at 11:39
Vicente CunhaVicente Cunha
1,967411
1,967411
add a comment |
add a comment |
Signal is a new contributor. Be nice, and check out our Code of Conduct.
Signal is a new contributor. Be nice, and check out our Code of Conduct.
Signal is a new contributor. Be nice, and check out our Code of Conduct.
Signal is a new contributor. Be nice, and check out our Code of Conduct.
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Request @Signal to mark an answer as accepted if they are satisfied with their application, to help any future readers
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– Shreyas
Apr 24 at 10:45
1
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@Shreyas It's customary to wait at least 24 hours after the question has been asked before accepting an answer.
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– pipe
Apr 24 at 12:15