US 12,493,067 B1
Non-linear flitering for pulse detection and pulse width discrimination
Richard J. Lavery, Huntington, NY (US)
Assigned to BAE Systems Information and Electronic Systems Integration Inc., Nashua, NH (US)
Filed by BAE SYSTEMS Information and Electronic Systems Integration Inc., Nashua, NH (US)
Filed on Jun. 10, 2024, as Appl. No. 18/738,669.
Int. Cl. G01R 29/027 (2006.01); H03H 17/02 (2006.01)
CPC G01R 29/0273 (2013.01) [H03H 17/0202 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A non-linear processing system comprising:
a first linear filter configured to filter an in-phase component of a received signal to a downsample bandwidth;
a second linear filter configured to filter a quadrature phase component of the received signal to the downsample bandwidth;
a magnitude calculation circuit coupled to an output of the first linear filter and an output of the second linear filter, the magnitude calculation circuit configured to generate a magnitude signal based on the filtered in-phase component and the filtered quadrature phase component of the received signal; and
a median filter processor coupled to an output of the magnitude calculation circuit and configured to apply a median filter to the magnitude signal to generate a filtered signal having reduced noise.