Wideband Beamformer System

摘要

An adaptive phased-array processing solution, referred to as the Wideband Beamformer System (WBS), demonstrates an improvement in the range and quality of air link surveillance downlink wireless cell radio signals. The WBS applies wideband frequency-domain adaptive beamforming to preprocess the dense RF signal environment, minimizing co-channel interference (CCI) from each signal, and then reconstructing a “clean” version of the signal for input to the existing surveillance receiver(s).

主权项

1. A process for synthesizing an individual antenna beam pattern to each individual cellular transmitter within a predetermined cellular band to a receiving antenna to optimize signal-to-noise (SNR) of emitted transmitter signals therefrom comprising:
scanning a predetermined cellular band and constructing a database of individual cellular transmitters emitting signals at or above the predetermined threshold; electronically steering a high gain antenna beam main lobe at each individual cellular transmitter emitting a signal at or above a predetermined threshold; and simultaneously directing antenna nulls in the direction of individual cellular transmitters interfering with each of the other individual cellular transmitters within the predetermined cellular band.