@inproceedings{965ff83457934df8a003bc8613d1e1d9,
title = "Pre-Calibration Techniques for Transmitter-Side RF Imbalance and Spectrum Distortion",
abstract = "In this paper, we study the cascaded pre-calibration techniques to overcome the coexisting problems of RF IQ imbalance (IQI) and RF spectrum distortion, which can improve the performance of a single package mmWave IC. The calibration techniques are designed separately. We first pre-compensate the IQI effect by using a single-tone signal with a blind algorithm to estimate the impairment parameters and calculate the precalibration weighting coefficients. After that, we adopt quadrature wideband training sequences to estimate the RF distorted responses and calculate the pre-calibration filters via the deconvolution techniques. The above calibration schemes are realized in the digital pre-processing domain and can perform better than the conventional RF calibration circuit design. Both the computer simulation results and the mmWave software defined radio (SDR) platform measurement results confirm that the proposed techniques can pre-calibrate the cascaded RF IQI and RF spectrum distortion problems.",
keywords = "blind algorithm, deconvolution technique, digital pre-calibration, mmWave software defined radio platform, RF IQ imbalances, RF spectrum distortion, Separated calibration procedures",
author = "Deng, {Juinn Horng} and Prasad, {Pavan Vatal Shankar} and Huang, {Wei Cheng} and Ku, {Meng Lin}",
note = "Publisher Copyright: {\textcopyright} 2022 IEEE.; 95th IEEE Vehicular Technology Conference - Spring, VTC 2022-Spring ; Conference date: 19-06-2022 Through 22-06-2022",
year = "2022",
doi = "10.1109/VTC2022-Spring54318.2022.9860817",
language = "???core.languages.en_GB???",
series = "IEEE Vehicular Technology Conference",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2022 IEEE 95th Vehicular Technology Conference - Spring, VTC 2022-Spring - Proceedings",
}