Problem 220. Signal filtering

Created by Nikolai

Solve Later

{"relationships":[{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/document","targetMode":"","relationshipId":"rId1","target":"/matlab/document.xml"},{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/output","targetMode":"","relationshipId":"rId2","target":"/matlab/output.xml"}],"parts":[{"partUri":"/matlab/document.xml","relationship":[],"contentType":"application/vnd.mathworks.matlab.code.document+xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<w:document xmlns:w=\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\"><w:body><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>You are given a vector, containing a superposition of target signal and white gaussian noise. Return a vector, containing the estimated signal, assuming the following conditions:</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"ListParagraph\"/><w:numPr><w:numId w:val=\"1\"/></w:numPr></w:pPr><w:r><w:t>signal-to-noise ratio is greater than 1;</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"ListParagraph\"/><w:numPr><w:numId w:val=\"1\"/></w:numPr></w:pPr><w:r><w:t>the sampling rate is at least 100 times greater than the target signal bandwidth.</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>The correlation coefficient of the resulting signal and the initial signal should be at least 0.95.</w:t></w:r></w:p></w:body></w:document>"},{"partUri":"/matlab/output.xml","contentType":"text/xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?><embeddedOutputs><metaData><evaluationState>manual</evaluationState><layoutState>code</layoutState><outputStatus>ready</outputStatus></metaData><outputArray type=\"array\"/><regionArray type=\"array\"/></embeddedOutputs>"}]}

Solve

Solution Stats

115 Solutions
13 Solvers

Last Solution submitted on Nov 14, 2022

Last 200 Solutions

Problem Comments

1 Comment

1 Comment

PE on 27 Feb 2018

It seems that function chirp isn't working. Gives following error:

Undefined function 'chirp' for input arguments of type 'double'.

Error in Test2 (line 1)
y = chirp(0:0.0001:0.9999,50,1,150)' + randn(10000,1);

Solution Comments

Solution 23424

1 Comment

1 Comment

Nikolai on 1 Feb 2012

Nice work, I haven't taken this in mind.

Problem Recent Solvers13

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Problem 220. Signal filtering

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers13

Suggested Problems

More from this Author3

Problem Tags

Community Treasure Hunt

Problem 220. Signal filtering

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers13

Suggested Problems

More from this Author3

Problem Tags

Community Treasure Hunt

Players