The invention relates to the technical field of narrow-band filters, and discloses an ultra-low
power consumption narrow-band filter implementation method based on a digital
phased array system, and the method comprises the following steps: S1, collecting input
signal data, carrying out the adaptive preprocessing, and generating preprocessed
signal data; s2, performing digital beam forming
processing based on the preprocessed
signal data to generate digital beam forming data; s3, performing
narrowband filtering parameter matching
processing according to the digital beam forming data to generate
narrowband filtering parameter data; in the
narrowband filtering
processing process, disturbance of environmental
electromagnetic interference to a
target signal is identified and eliminated in real time through adaptive
noise suppression and a multi-dimensional signal preprocessing mechanism, so that the
system can guarantee the pointing precision of digital beam forming, the pointing offset problem in the space signal capturing process is avoided, the accuracy of narrowband
signal extraction is improved, and the accuracy of narrowband
signal extraction is improved. And the reliability of filtering output and the
signal fidelity are enhanced.