Invention Application
- Patent Title: System and Method For IQ Imbalance Estimation
- Patent Title (中): IQ不平衡估计的系统和方法
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Application No.: US15257582Application Date: 2016-09-06
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Publication No.: US20170005855A1Publication Date: 2017-01-05
- Inventor: Michail Tsatsanis , Na Chen
- Applicant: Entropic Communications LLC
- Main IPC: H04L27/38
- IPC: H04L27/38 ; H04L12/26

Abstract:
A system for IQ balance estimation is disclosed and may include requesting an in-phase and quadrature (IQ) probe comprising tones, receiving the tones, and calculating an estimate of IQ imbalance for each received tone. The system may also include requesting an IQ probe, and calculating an estimate of IQ imbalance for each received tone by determining an image to tone ratio based on the received tones. The requesting of the IQ probe, the receiving of the tones, and the calculating of the image to tone ratio may be repeated the results of the calculations of the image to tone ratio may be averaged. Gain, phase, and delay parameters may be calculated to compensate for the IQ imbalance.
Information query