I have tried to defined a class definition
classdef (StrictDefaults)NewtonRateConverter< dsp.FarrowRateConverter &...
dsp.internal.SupportScalarVarSize & ...
dsp.internal.MultirateEngine &...
dsp.internal.FilterAnalysisMultirate
%Constructor
methods
function obj = NewtonRateConverter(varargin)
% Constructor for the NewtonRateConverter class
setProperties(obj, nargin, varargin{:}, ...
'InputSampleRate', ...
'OutputSampleRate', ...
'OutputRateTolerance', ...
'PolynomialOrder');
end
end
basically it overrides the Farrow Rate Converter and introduce certain conversions over it .
Now for it two Transformation Delay Matrices Td2 are required.Mathematically Td2
M is the Polynomial Order
So I created function file for Td2
function Td2 = compute_Td2(M)
% Initialize Td2 with identity
Td2 = eye(M+1);
for n = 2:M+1
for k = 2:n-1
Td2(n, k) = Td2(n-1, k-1) - (n-2) * Td2(n-1, k);
end
end
Td2 = Td2(2:M+1, 2:M+1);
end
This I defined this as a static method in NewtonRateConverter
>> compute_Td2(3)
ans =
1 0 0
-1 1 0
2 -3 1
>> compute_Td2(5)
ans =
1 0 0 0 0
-1 1 0 0 0
2 -3 1 0 0
-6 11 -6 1 0
24 -50 35 -10 1
I entered this as a function as a property and method in this class definition NewtonRateConverter
properties
TransformationDelayMatrix2
end
methods
function computeTransformationDelayMatrix2(obj)
% Access PolynomialOrder from superclass
M = obj.PolynomialOrder;
% Compute TransformationDelayMatrix2 using compute_Td2
obj.TransformationDelayMatrix2 = compute_Td2(M);
end
end
When I tried to access this object TransformationDelayMatrix2
% Initialization
myNRC = NewtonRateConverter('InputSampleRate', 44100, 'OutputSampleRate', 48000, 'PolynomialOrder', 3);
myNRC.TransformationDelayMatrix2
In the command window it displays :
>> myNRC.TransformationDelayMatrix2
ans =
[]
Why is this an empty array shown please could you clear out this doubt ?Please could you debugg ?
