Class: SPCore::HammingWindow

Inherits:
Object
  • Object
show all
Defined in:
lib/spcore/windows/hamming_window.rb

Overview

For more info, see en.wikipedia.org/wiki/Window_function#Hamming_window.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(size) ⇒ HammingWindow

Returns a new instance of HammingWindow.



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# File 'lib/spcore/windows/hamming_window.rb', line 6

def initialize size
  @data = Array.new size
  alpha = 0.54
  beta = 1.0 - alpha
    
  size.times do |n|
    @data[n] = alpha - (beta * Math::cos((TWO_PI * n) / (size - 1)))
  end
end

Instance Attribute Details

#data ⇒ Object (readonly)

Returns the value of attribute data.



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# File 'lib/spcore/windows/hamming_window.rb', line 5

def data
  @data
end