sashkotar/syto

Digital signal processing library

syto's Issues

Publish JAR to public Maven repository

Transform Analog filter to Digital one

• Transform one of Chebyshev's filter

Refactor public API to use Builder pattern

Implement Bessel prototype

• implement Unit tests for 2 order prototype
• implement calculations

Research analog Band-stop filter

• Study theoretical basis (Lem/Paarman/DSP)
• Calculate on a paper analog Butterworth band-stop filter
• Do the same for Chebyshev II

Define the set of expected approximations for Release 0

Research which filter approximations are present in scipy - Bessel, Kauer, etc

Not able to calculate Elliptic filter for order > 9

Exception in thread "main" java.util.NoSuchElementException: head of empty list
at scala.collection.immutable.Nil$.head(List.scala:420)
at scala.collection.immutable.Nil$.head(List.scala:417)
at net.sparja.syto.math.EllipticIntegral$.ellipInc(EllipticIntegral.scala:41)
at net.sparja.syto.math.EllipticIntegral$.F(EllipticIntegral.scala:47)
at net.sparja.syto.math.EllipticIntegral$.K(EllipticIntegral.scala:45)

Implement analog Band-pass filters

• Create unit tests
• Butterworth
• Chebyshev
• Chebyshev II

Vizualize Graphs for Butterworth Filters

• Poles on the s-plane
• Magnitude Square Frequency Response
• Magnitude in dB Frequency Response
• Phase/Frequency
• Group Delay
• Impulse response(Optional)

Research analog Band-pass filter

• Study theoretical basis (Lem/Paarman/DSP)
• Calculate on a paper analog Butterworth band-pass filter
• Do the same for Chebyshev II

Add "digitilize" method to Builder to design digital filters

Replace Float type with Double for all filter calculations

A lot of functions retrieve/returns data of Float type. It affects the precision of the calculations and result differ from scipy control sets

Implement basic filtering method

• implement unit tests
• implement filtering

Define Milestone 0

• Define name conventions, versioning
• Define expected functionality
• Define filter types and approximations
• Set up deadlines and goals
• Define metrics to track

Create/Generate unit tests for all filters

Implement analog Band-stop filters

• Create unit tests
• Butterworth
• Chebyshev
• Chebyshev II

Investigate how to use GitHub to manage a project

• Kanban basics
• Issue linking to commit
• Dashboard basics

Implelement Elliptic prototype