The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Este artigo apresenta um esquema de calibração para incompatibilidade de atraso entre envelope e fase no transmissor polar OFDM. Um método de detecção de atraso assíncrono é proposto para evitar o uso de um algoritmo de processamento de sinal complicado ou elementos síncronos que necessitam de altas taxas de clock para detectar pequenas incompatibilidades de atraso. Este esquema usa cadeias de atraso de buffer para estimar a incompatibilidade e então os valores de atraso estimados são armazenados de forma assíncrona nos registradores. Verifica-se que o esquema proposto é adequado para aplicação ao transmissor polar OFDM através de simulações SPW, Matlab e HDL. Atinge a margem de cerca de 20 dB com deslocamento de 20 MHz, 10 dB com deslocamento de 40 MHz em termos de limite espectral especificado no padrão WLAN.
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Hun-sik KANG, Min-Lee HWANG, Jin LEE, Sok-kyu LEE, Hae-wook CHOI, Sin-Chong PARK, "A Calibration Scheme for Delay Mismatch Compensation in OFDM-Based Polar Transmitter" in IEICE TRANSACTIONS on Communications,
vol. E93-B, no. 10, pp. 2791-2794, October 2010, doi: 10.1587/transcom.E93.B.2791.
Abstract: This paper presents a calibration scheme for delay mismatch between envelope and phase in the OFDM polar transmitter. An asynchronous delay detection method is proposed to avoid using a complicated signal processing algorithm or synchronous elements which need high clocking rates for detecting small delay mismatch. This scheme uses buffer delay chains to estimate the mismatch and then the estimated delay values are asynchronously stored in registers. It is verified that the proposed scheme well suites application to the OFDM polar transmitter through SPW, Matlab and HDL simulations. It achieves the margin of about 20 dB at 20 MHz offset, 10 dB at 40 MHz offset in terms of spectral limit specified in WLAN standard.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E93.B.2791/_p
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@ARTICLE{e93-b_10_2791,
author={Hun-sik KANG, Min-Lee HWANG, Jin LEE, Sok-kyu LEE, Hae-wook CHOI, Sin-Chong PARK, },
journal={IEICE TRANSACTIONS on Communications},
title={A Calibration Scheme for Delay Mismatch Compensation in OFDM-Based Polar Transmitter},
year={2010},
volume={E93-B},
number={10},
pages={2791-2794},
abstract={This paper presents a calibration scheme for delay mismatch between envelope and phase in the OFDM polar transmitter. An asynchronous delay detection method is proposed to avoid using a complicated signal processing algorithm or synchronous elements which need high clocking rates for detecting small delay mismatch. This scheme uses buffer delay chains to estimate the mismatch and then the estimated delay values are asynchronously stored in registers. It is verified that the proposed scheme well suites application to the OFDM polar transmitter through SPW, Matlab and HDL simulations. It achieves the margin of about 20 dB at 20 MHz offset, 10 dB at 40 MHz offset in terms of spectral limit specified in WLAN standard.},
keywords={},
doi={10.1587/transcom.E93.B.2791},
ISSN={1745-1345},
month={October},}
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TY - JOUR
TI - A Calibration Scheme for Delay Mismatch Compensation in OFDM-Based Polar Transmitter
T2 - IEICE TRANSACTIONS on Communications
SP - 2791
EP - 2794
AU - Hun-sik KANG
AU - Min-Lee HWANG
AU - Jin LEE
AU - Sok-kyu LEE
AU - Hae-wook CHOI
AU - Sin-Chong PARK
PY - 2010
DO - 10.1587/transcom.E93.B.2791
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E93-B
IS - 10
JA - IEICE TRANSACTIONS on Communications
Y1 - October 2010
AB - This paper presents a calibration scheme for delay mismatch between envelope and phase in the OFDM polar transmitter. An asynchronous delay detection method is proposed to avoid using a complicated signal processing algorithm or synchronous elements which need high clocking rates for detecting small delay mismatch. This scheme uses buffer delay chains to estimate the mismatch and then the estimated delay values are asynchronously stored in registers. It is verified that the proposed scheme well suites application to the OFDM polar transmitter through SPW, Matlab and HDL simulations. It achieves the margin of about 20 dB at 20 MHz offset, 10 dB at 40 MHz offset in terms of spectral limit specified in WLAN standard.
ER -