| LTPDA Toolbox™ | contents | |
The following example creates an empty specwin object
w = specwin()
-------- None ------------
alpha: -1
psll: -1
rov: -1
nenbw: -1
w3db: -1
flatness: -1
ws: -1
ws2: -1
win: 1
--------------------------
The following example creates a new specwin object by loading the specwin object from disk.
p = specwin('specwin.mat') p = specwin('specwin.xml')
To create a spectral window object, you call the specwin class constructor. The following code fragment creates a 100-point Hanning window:
>> w = specwin('Hanning', 100)
-------- Hanning ------------
alpha: 0
psll: 31.5
rov: 50
nenbw: 1.5
w3db: 1.4382
flatness: -1.4236
ws: 50
ws2: 37.5
win: 100
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List of available window functions
In the special case of creating a Kaiser window, the additional input parameter, PSLL, must be supplied. For example, the following code creates a 100-point Kaiser window with -150dB peak side-lobe level:
>> w = specwin('Kaiser', 100, 150)
-------- Kaiser ------------
alpha: 6.18029
psll: 150
rov: 73.3738
nenbw: 2.52989
w3db: 2.38506
flatness: -0.52279
ws: 28.2558
ws2: 20.1819
win: 100
----------------------------
Construct a SPECWIN from its definion.
|
'Name' |
Spectral window name [default: 'Kaiser'] |
|
'N' |
Spectral window length [default: 10] |
|
'PSLL' |
Peak sidelobe length (only for Kaiser type) |
pl = plist('Name', 'Kaiser', 'N', 1000, 'PSLL', 75); w = specwin(pl) -------- Kaiser ------------ alpha: 3.21394 psll: 75 rov: 63.4095 nenbw: 1.85055 w3db: 1.75392 flatness: -0.963765 ws: 389.305 ws2: 280.892 win: 1000 ----------------------------
pl = plist('Name', 'Hanning', 'N', 1000); w =specwin(pl) -------- Hanning ------------ alpha: 0 psll: 31.5 rov: 50 nenbw: 1.5 w3db: 1.4382 flatness: -1.4236 ws: 500 ws2: 375 win: 1000 -----------------------------
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Constructor examples of the PLIST class | LTPDA Training Session 1 | |
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