sigwin.nuttallwin Class
Namespace: sigwin
Construct Nuttall defined four-term Blackman-Harris window object
Description
Note
The use of sigwin.nuttallwin
is not recommended.
Use nuttallwin
instead.
sigwin.nuttallwin
creates a handle to a Nuttall
defined four-term Blackman-Harris window object for use in spectral
analysis and FIR filtering by the window method. Object methods enable
workspace import and ASCII file export of the window values.
Construction
H = sigwin.nuttallwin
returns a Nuttall
defined four-term Blackman-Harris window object window object H
of
length 64.
returns
a Nuttall defined four-term Blackman-Harris window object H
= sigwin.nuttallwin(Length
)H
of
length Length
. Entering a positive noninteger
value for Length
rounds the length to the nearest
integer. Entering a 1 for Length
results in a
window with a single value of 1. The SamplingFlag
property
defaults to 'symmetric'
.
Properties
|
Nuttall defined four-term Blackman-Harris window length. The
window length must be a positive integer. Entering a positive noninteger
value for |
|
The type of window returned as one of |
Methods
generate | Generates Nuttall defined four-term Blackman-Harris window |
info | Display information about Nuttall defined four-term Blackman-Harris window object |
winwrite | Save Nuttall defined four-term Blackman-Harris window object values in ASCII file |
Copy Semantics
Handle. To learn how copy semantics affect your use of the class, see Copying Objects in the MATLAB® Programming Fundamentals documentation.
Examples
Algorithms
The following equation defines the symmetric Nuttall defined four-term Blackman-Harris window of length N.
The following equation defines the periodic Nuttall defined four-term Blackman-Harris window of length N.
The following table lists the coefficients:
Coefficient | Value |
---|---|
a0 | 0.3635819 |
a1 | 0.4891775 |
a2 | 0.1365995 |
a3 | 0.0106411 |
References
Nuttall, A. H. “Some Windows with Very Good Sidelobe Behavior.” IEEE® Transactions on Acoustics, Speech, and Signal Processing. Vol. 29, 1981, pp. 84–91.