Adaptive windowing to improve FFT resolution and side lobes rejection

Hi,
   I come accross a patent found by Russell. The below is the link.
http://www.freepatentsonline.com/6298363.html
I try to find more information on the Adaptive windowing method but did
got any luck. May I know does any one has any opinion or information about
the Adapative Windowing method?

Regards,
BC

On Feb 26, 5:37&#2013266080;am, "boon chun" <boon-chun_...@agilent.com> wrote:
> Hi,
> &#2013266080; &#2013266080;I come accross a patent found by Russell. The below is the link.http://www.freepatentsonline.com/6298363.html
> I try to find more information on the Adaptive windowing method but did
> got any luck. May I know does any one has any opinion or information about
> the Adapative Windowing method?
>
> Regards,
> BC

The link and the site don't tell you very much.  Go to www.uspto.gov
and search on the patent number 6298363 to get the details.

Dirk

On Feb 26, 2:37 am, "boon chun" <boon-chun_...@agilent.com> wrote:
> Hi,
>    I come accross a patent found by Russell. The below is the link.http://www.freepatentsonline.com/6298363.html
> I try to find more information on the Adaptive windowing method but did
> got any luck. May I know does any one has any opinion or information about
> the Adapative Windowing method?
>
> Regards,
> BC

You might try searching on the spatially variant apodization (SVA)
term used in your citation. There is literature on it. Another
approach is to simply apply multiple windows and take the outputs from
the windowed data having the least magnitude at each bin. You may or
may not consider this 'adaptive'. It is computationally
straightforward, has predictable processing cost, and the performance
envelope can be calculated from the selected windows.

Dale B. Dalrymple
http://dbdimages.com