Open AccessFast dichotomic supervised I/Q imbalance compensation algorithm
Author(s) -
Pons J.F.,
Dehaese N.,
Bourdel S.,
Gaubert J.,
Paille B.
Publication year - 2015
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2015.1555
Subject(s) - compensation (psychology) , computer science , algorithm , preamble , matlab , bluetooth , energy (signal processing) , signal (programming language) , wireless , convergence (economics) , mathematics , telecommunications , statistics , psychology , channel (broadcasting) , psychoanalysis , economics , programming language , economic growth , operating system
A fast I/Q imbalance compensation algorithm is presented. It is demonstrated through MATLAB simulations that with a few samples an image‐to‐signal ratio (ISR) lower than −25 dB was achieved. On the basis of digital processing of the received signal, this algorithm is compliant with low‐cost and low‐complexity wireless receivers because it does not require extra time and resources for calibration. Moreover, its fast convergence allows reaching a high enough image rejection ratio by adapting the compensation weight during the reception of a known preamble such as defined by the IEEE 802.15.4 or the Bluetooth low energy standards.