Patent ID: 11888660
Assignee: UNIVERSITY CORPORATION FOR ATMOSPHERIC RESEARCH
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A band filter (100, 200) for filtering a discrete time series signal (110, 210), the band filter (100, 200) comprising:
an input frequency shifter (120, 220) configured to frequency down shift the discrete time series signal (110, 210) to provide a frequency down shifted discrete time series signal (120a, 220a);
a high-pass higher order polynomial regression based zero frequency centered band filter (130, 230) communicatively coupled to the input frequency shifter (120, 220), the high-pass higher order polynomial regression based zero frequency centered band filter (130, 230) being configured to:
operate on an entire length of the frequency down shifted discrete time series signal (120a, 220a); and
filter the frequency down shifted discrete time series signal (120a, 220a) to provide a filtered and frequency down shifted discrete time series signal (130a, 230a); and

an output frequency shifter (140, 240) communicatively coupled to the high-pass higher order polynomial regression based zero frequency centered band filter (130, 230), the output frequency shifter (140, 240) being configured to frequency up shift the filtered and frequency down shifted discrete time series signal (130a, 230a).