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Stored size: 771 Bytes
Contents
##
# kaiser Window
# Used to improve digital filters by using a non-retangular frequency domain window
# NOT COMPLETE
# TODO: Finish this Window
class Digiproc::KaiserWindow < Digiproc::WindowStrategy
def initialize(size: , stopband_db: nil, beta: nil)
raise ArgumentError.new("Must have a stopband or a beta") if stopband_db.nil? && beta.nil?
super(size: size)
size = @size
@equation = lambda { |n| }
calculate
@values = @values.take(@size)
end
def beta_for_db(db)
if db <= 21
return 0
elsif db < 50
return 0.5842*((db - 21) ** 0.4) + 0.07886 * (db - 21)
else
return 0.1102*(db - 8.7)
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems