Patent ID: 9374246
Filing Date: 2016-06-21
CPC Classification: G01S,H04L

Claim Text:
1. A radio frequency (RF) digital receiver system for detecting RF signals, comprising: an RF digital receiver including: discrete Fourier transform (DFT) for making detection decisions on an RF signal received by an antenna based on a spectral estimate formed from an output of the DFT means; and the RF digital receiver being configured to: enable spatially variant apodization (SVA) to form the spectral estimate by selecting a function for producing a spectral estimate which is representative of the RF signal received by the antenna, and enhance a detection ability of the RF digital receiver, wherein the spectral estimate for digital signal processing is formed by: calculating parameters at each frequency bin; and applying the calculated parameters to each frequency bin according to a set of equations and determining whether further processing of a respective frequency bin is necessary based on a dividend of at least one equation in the set of equations.