Title:
パラメトリックフィルタを使用して混合を改善する第１隣接キャンセラ（ＦＡＣ）
Document Type and Number:
Japanese Patent JP6548668
Kind Code:
B2
Abstract:
A method for processing a radio signal includes: receiving an FM in-band on-channel radio signal including a plurality of digitally modulated subcarriers in upper and lower sidebands; sampling the FM in-band on-channel radio signal to produce an input signal including complex digital samples of a combination of a desired one the upper and lower sidebands and an FM interferer; removing FM interferer components from the first signal by notch filtering to produce a notch-filtered signal; weighting the notch-filtered signal to produce a weighted notch-filtered signal; using a parametric filter to filter the input signal to produce a parametric-filtered input signal; and combining the weighted notch-filtered signal and the parametric-filtered input signal to produce an output signal. A radio receiver that implements the method is also included.
Inventors:
Kruger, Brian W.
Peira, Paul Jay.
Peira, Paul Jay.
Application Number:
JP2016564196A
Publication Date:
July 24, 2019
Filing Date:
April 16, 2015
Export Citation:
Assignee:
IBIQUITY DIGITAL CORPORATION
International Classes:
H04L27/26; H04B1/10; H04L27/22
Domestic Patent References:
| JP2004503984A | ||||
| JP2002135142A | ||||
| JP2011526428A | ||||
| JP11109993A |
Attorney, Agent or Firm:
Maruyama International Patent Office