QPSK Modulator with Continuous Phase and Fast Response Based on Phase-Locked Loop

Among M-phase shift keying (M-PSK) schemes, quadrature phase-shift keying (QPSK) is used most often because of its efficient bandwidth consumption. However, in comparison with minimum-shift keying, which has continuous phase transitions, QPSK requires a higher bandwidth to transmit a signal. This ar...
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Autor*in:	L. Kirasamuthranon [verfasserIn] J. Koseeyaporn [verfasserIn] P. Wardkein [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2017

Schlagwörter:	QPSK Phase Locked Loop (PLL) phase shift

Übergeordnetes Werk:	In: Radioengineering - Spolecnost pro radioelektronicke inzenyrstvi, 2008, 26(2017), 2, Seite 504-514
Übergeordnetes Werk:	volume:26 ; year:2017 ; number:2 ; pages:504-514

Links:	Link aufrufen Link aufrufen Journal toc

Katalog-ID:	DOAJ079639895

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520			\|a Among M-phase shift keying (M-PSK) schemes, quadrature phase-shift keying (QPSK) is used most often because of its efficient bandwidth consumption. However, in comparison with minimum-shift keying, which has continuous phase transitions, QPSK requires a higher bandwidth to transmit a signal. This article focuses on the phase transitions in QPSK signals, and a QPSK modulator based on a phase-locked loop (PLL) is proposed. The PLL circuit in the proposed system differs from that of conventional PLL circuits because a three-input XOR gate and a summing circuit are used. With these additional components, the proposed PLL provides a continuous phase change in the QPSK signal. Consequently, the required bandwidth for transmitting the QPSK signal when using the proposed circuit is less than that for a conventional QPSK signal with a discontinuous phase. The analytical results for the proposed system in the time domain agree well with the experimental and simulation results of the circuit. Both the theoretical and experimental results thus confirm that the proposed technique can be realized in real-world applications.
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allfields	(DE-627)DOAJ079639895 (DE-599)DOAJ03c7e479e8fc44a38c3e3f35a9010713 DE-627 ger DE-627 rakwb eng TK1-9971 L. Kirasamuthranon verfasserin aut QPSK Modulator with Continuous Phase and Fast Response Based on Phase-Locked Loop 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Among M-phase shift keying (M-PSK) schemes, quadrature phase-shift keying (QPSK) is used most often because of its efficient bandwidth consumption. However, in comparison with minimum-shift keying, which has continuous phase transitions, QPSK requires a higher bandwidth to transmit a signal. This article focuses on the phase transitions in QPSK signals, and a QPSK modulator based on a phase-locked loop (PLL) is proposed. The PLL circuit in the proposed system differs from that of conventional PLL circuits because a three-input XOR gate and a summing circuit are used. With these additional components, the proposed PLL provides a continuous phase change in the QPSK signal. Consequently, the required bandwidth for transmitting the QPSK signal when using the proposed circuit is less than that for a conventional QPSK signal with a discontinuous phase. The analytical results for the proposed system in the time domain agree well with the experimental and simulation results of the circuit. Both the theoretical and experimental results thus confirm that the proposed technique can be realized in real-world applications. QPSK Phase Locked Loop (PLL) phase shift Electrical engineering. Electronics. Nuclear engineering J. Koseeyaporn verfasserin aut P. Wardkein verfasserin aut In Radioengineering Spolecnost pro radioelektronicke inzenyrstvi, 2008 26(2017), 2, Seite 504-514 (DE-627)571430961 (DE-600)2436258-X 18059600 nnns volume:26 year:2017 number:2 pages:504-514 https://doaj.org/article/03c7e479e8fc44a38c3e3f35a9010713 kostenfrei https://www.radioeng.cz/fulltexts/2017/17_02_0504_0514.pdf kostenfrei https://doaj.org/toc/1210-2512 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 26 2017 2 504-514
spelling	(DE-627)DOAJ079639895 (DE-599)DOAJ03c7e479e8fc44a38c3e3f35a9010713 DE-627 ger DE-627 rakwb eng TK1-9971 L. Kirasamuthranon verfasserin aut QPSK Modulator with Continuous Phase and Fast Response Based on Phase-Locked Loop 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Among M-phase shift keying (M-PSK) schemes, quadrature phase-shift keying (QPSK) is used most often because of its efficient bandwidth consumption. However, in comparison with minimum-shift keying, which has continuous phase transitions, QPSK requires a higher bandwidth to transmit a signal. This article focuses on the phase transitions in QPSK signals, and a QPSK modulator based on a phase-locked loop (PLL) is proposed. The PLL circuit in the proposed system differs from that of conventional PLL circuits because a three-input XOR gate and a summing circuit are used. With these additional components, the proposed PLL provides a continuous phase change in the QPSK signal. Consequently, the required bandwidth for transmitting the QPSK signal when using the proposed circuit is less than that for a conventional QPSK signal with a discontinuous phase. The analytical results for the proposed system in the time domain agree well with the experimental and simulation results of the circuit. Both the theoretical and experimental results thus confirm that the proposed technique can be realized in real-world applications. QPSK Phase Locked Loop (PLL) phase shift Electrical engineering. Electronics. Nuclear engineering J. Koseeyaporn verfasserin aut P. Wardkein verfasserin aut In Radioengineering Spolecnost pro radioelektronicke inzenyrstvi, 2008 26(2017), 2, Seite 504-514 (DE-627)571430961 (DE-600)2436258-X 18059600 nnns volume:26 year:2017 number:2 pages:504-514 https://doaj.org/article/03c7e479e8fc44a38c3e3f35a9010713 kostenfrei https://www.radioeng.cz/fulltexts/2017/17_02_0504_0514.pdf kostenfrei https://doaj.org/toc/1210-2512 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 26 2017 2 504-514
allfields_unstemmed	(DE-627)DOAJ079639895 (DE-599)DOAJ03c7e479e8fc44a38c3e3f35a9010713 DE-627 ger DE-627 rakwb eng TK1-9971 L. Kirasamuthranon verfasserin aut QPSK Modulator with Continuous Phase and Fast Response Based on Phase-Locked Loop 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Among M-phase shift keying (M-PSK) schemes, quadrature phase-shift keying (QPSK) is used most often because of its efficient bandwidth consumption. However, in comparison with minimum-shift keying, which has continuous phase transitions, QPSK requires a higher bandwidth to transmit a signal. This article focuses on the phase transitions in QPSK signals, and a QPSK modulator based on a phase-locked loop (PLL) is proposed. The PLL circuit in the proposed system differs from that of conventional PLL circuits because a three-input XOR gate and a summing circuit are used. With these additional components, the proposed PLL provides a continuous phase change in the QPSK signal. Consequently, the required bandwidth for transmitting the QPSK signal when using the proposed circuit is less than that for a conventional QPSK signal with a discontinuous phase. The analytical results for the proposed system in the time domain agree well with the experimental and simulation results of the circuit. Both the theoretical and experimental results thus confirm that the proposed technique can be realized in real-world applications. QPSK Phase Locked Loop (PLL) phase shift Electrical engineering. Electronics. Nuclear engineering J. Koseeyaporn verfasserin aut P. Wardkein verfasserin aut In Radioengineering Spolecnost pro radioelektronicke inzenyrstvi, 2008 26(2017), 2, Seite 504-514 (DE-627)571430961 (DE-600)2436258-X 18059600 nnns volume:26 year:2017 number:2 pages:504-514 https://doaj.org/article/03c7e479e8fc44a38c3e3f35a9010713 kostenfrei https://www.radioeng.cz/fulltexts/2017/17_02_0504_0514.pdf kostenfrei https://doaj.org/toc/1210-2512 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 26 2017 2 504-514
allfieldsGer	(DE-627)DOAJ079639895 (DE-599)DOAJ03c7e479e8fc44a38c3e3f35a9010713 DE-627 ger DE-627 rakwb eng TK1-9971 L. Kirasamuthranon verfasserin aut QPSK Modulator with Continuous Phase and Fast Response Based on Phase-Locked Loop 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Among M-phase shift keying (M-PSK) schemes, quadrature phase-shift keying (QPSK) is used most often because of its efficient bandwidth consumption. However, in comparison with minimum-shift keying, which has continuous phase transitions, QPSK requires a higher bandwidth to transmit a signal. This article focuses on the phase transitions in QPSK signals, and a QPSK modulator based on a phase-locked loop (PLL) is proposed. The PLL circuit in the proposed system differs from that of conventional PLL circuits because a three-input XOR gate and a summing circuit are used. With these additional components, the proposed PLL provides a continuous phase change in the QPSK signal. Consequently, the required bandwidth for transmitting the QPSK signal when using the proposed circuit is less than that for a conventional QPSK signal with a discontinuous phase. The analytical results for the proposed system in the time domain agree well with the experimental and simulation results of the circuit. Both the theoretical and experimental results thus confirm that the proposed technique can be realized in real-world applications. QPSK Phase Locked Loop (PLL) phase shift Electrical engineering. Electronics. Nuclear engineering J. Koseeyaporn verfasserin aut P. Wardkein verfasserin aut In Radioengineering Spolecnost pro radioelektronicke inzenyrstvi, 2008 26(2017), 2, Seite 504-514 (DE-627)571430961 (DE-600)2436258-X 18059600 nnns volume:26 year:2017 number:2 pages:504-514 https://doaj.org/article/03c7e479e8fc44a38c3e3f35a9010713 kostenfrei https://www.radioeng.cz/fulltexts/2017/17_02_0504_0514.pdf kostenfrei https://doaj.org/toc/1210-2512 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 26 2017 2 504-514
allfieldsSound	(DE-627)DOAJ079639895 (DE-599)DOAJ03c7e479e8fc44a38c3e3f35a9010713 DE-627 ger DE-627 rakwb eng TK1-9971 L. Kirasamuthranon verfasserin aut QPSK Modulator with Continuous Phase and Fast Response Based on Phase-Locked Loop 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Among M-phase shift keying (M-PSK) schemes, quadrature phase-shift keying (QPSK) is used most often because of its efficient bandwidth consumption. However, in comparison with minimum-shift keying, which has continuous phase transitions, QPSK requires a higher bandwidth to transmit a signal. This article focuses on the phase transitions in QPSK signals, and a QPSK modulator based on a phase-locked loop (PLL) is proposed. The PLL circuit in the proposed system differs from that of conventional PLL circuits because a three-input XOR gate and a summing circuit are used. With these additional components, the proposed PLL provides a continuous phase change in the QPSK signal. Consequently, the required bandwidth for transmitting the QPSK signal when using the proposed circuit is less than that for a conventional QPSK signal with a discontinuous phase. The analytical results for the proposed system in the time domain agree well with the experimental and simulation results of the circuit. Both the theoretical and experimental results thus confirm that the proposed technique can be realized in real-world applications. QPSK Phase Locked Loop (PLL) phase shift Electrical engineering. Electronics. Nuclear engineering J. Koseeyaporn verfasserin aut P. Wardkein verfasserin aut In Radioengineering Spolecnost pro radioelektronicke inzenyrstvi, 2008 26(2017), 2, Seite 504-514 (DE-627)571430961 (DE-600)2436258-X 18059600 nnns volume:26 year:2017 number:2 pages:504-514 https://doaj.org/article/03c7e479e8fc44a38c3e3f35a9010713 kostenfrei https://www.radioeng.cz/fulltexts/2017/17_02_0504_0514.pdf kostenfrei https://doaj.org/toc/1210-2512 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 26 2017 2 504-514
language	English
source	In Radioengineering 26(2017), 2, Seite 504-514 volume:26 year:2017 number:2 pages:504-514
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topic_facet	QPSK Phase Locked Loop (PLL) phase shift Electrical engineering. Electronics. Nuclear engineering
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authorswithroles_txt_mv	L. Kirasamuthranon @@aut@@ J. Koseeyaporn @@aut@@ P. Wardkein @@aut@@
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callnumber-first	T - Technology
author	L. Kirasamuthranon
spellingShingle	L. Kirasamuthranon misc TK1-9971 misc QPSK misc Phase Locked Loop (PLL) misc phase shift misc Electrical engineering. Electronics. Nuclear engineering QPSK Modulator with Continuous Phase and Fast Response Based on Phase-Locked Loop
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topic_title	TK1-9971 QPSK Modulator with Continuous Phase and Fast Response Based on Phase-Locked Loop QPSK Phase Locked Loop (PLL) phase shift
topic	misc TK1-9971 misc QPSK misc Phase Locked Loop (PLL) misc phase shift misc Electrical engineering. Electronics. Nuclear engineering
topic_unstemmed	misc TK1-9971 misc QPSK misc Phase Locked Loop (PLL) misc phase shift misc Electrical engineering. Electronics. Nuclear engineering
topic_browse	misc TK1-9971 misc QPSK misc Phase Locked Loop (PLL) misc phase shift misc Electrical engineering. Electronics. Nuclear engineering
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title	QPSK Modulator with Continuous Phase and Fast Response Based on Phase-Locked Loop
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title_sort	qpsk modulator with continuous phase and fast response based on phase-locked loop
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title_auth	QPSK Modulator with Continuous Phase and Fast Response Based on Phase-Locked Loop
abstract	Among M-phase shift keying (M-PSK) schemes, quadrature phase-shift keying (QPSK) is used most often because of its efficient bandwidth consumption. However, in comparison with minimum-shift keying, which has continuous phase transitions, QPSK requires a higher bandwidth to transmit a signal. This article focuses on the phase transitions in QPSK signals, and a QPSK modulator based on a phase-locked loop (PLL) is proposed. The PLL circuit in the proposed system differs from that of conventional PLL circuits because a three-input XOR gate and a summing circuit are used. With these additional components, the proposed PLL provides a continuous phase change in the QPSK signal. Consequently, the required bandwidth for transmitting the QPSK signal when using the proposed circuit is less than that for a conventional QPSK signal with a discontinuous phase. The analytical results for the proposed system in the time domain agree well with the experimental and simulation results of the circuit. Both the theoretical and experimental results thus confirm that the proposed technique can be realized in real-world applications.
abstractGer	Among M-phase shift keying (M-PSK) schemes, quadrature phase-shift keying (QPSK) is used most often because of its efficient bandwidth consumption. However, in comparison with minimum-shift keying, which has continuous phase transitions, QPSK requires a higher bandwidth to transmit a signal. This article focuses on the phase transitions in QPSK signals, and a QPSK modulator based on a phase-locked loop (PLL) is proposed. The PLL circuit in the proposed system differs from that of conventional PLL circuits because a three-input XOR gate and a summing circuit are used. With these additional components, the proposed PLL provides a continuous phase change in the QPSK signal. Consequently, the required bandwidth for transmitting the QPSK signal when using the proposed circuit is less than that for a conventional QPSK signal with a discontinuous phase. The analytical results for the proposed system in the time domain agree well with the experimental and simulation results of the circuit. Both the theoretical and experimental results thus confirm that the proposed technique can be realized in real-world applications.
abstract_unstemmed	Among M-phase shift keying (M-PSK) schemes, quadrature phase-shift keying (QPSK) is used most often because of its efficient bandwidth consumption. However, in comparison with minimum-shift keying, which has continuous phase transitions, QPSK requires a higher bandwidth to transmit a signal. This article focuses on the phase transitions in QPSK signals, and a QPSK modulator based on a phase-locked loop (PLL) is proposed. The PLL circuit in the proposed system differs from that of conventional PLL circuits because a three-input XOR gate and a summing circuit are used. With these additional components, the proposed PLL provides a continuous phase change in the QPSK signal. Consequently, the required bandwidth for transmitting the QPSK signal when using the proposed circuit is less than that for a conventional QPSK signal with a discontinuous phase. The analytical results for the proposed system in the time domain agree well with the experimental and simulation results of the circuit. Both the theoretical and experimental results thus confirm that the proposed technique can be realized in real-world applications.
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title_short	QPSK Modulator with Continuous Phase and Fast Response Based on Phase-Locked Loop
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