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".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
다채널 광케이블 TV 시스템에서 상호변조 왜곡 간섭의 진폭 확률 분포의 통계적 거동을 실험적으로 조사했습니다. 다중 채널 전송에서 레이저 다이오드(LD) 또는 전기 증폭기의 비선형성은 상호 변조 왜곡(복합 20차 비트, CSO, 복합 삼중 비트, CTB 등)을 유발할 수 있습니다. 레이저 클리핑 왜곡으로 논의되었지만 상호 변조 왜곡은 일반적으로 AM-VSB 반송파의 왜곡입니다. 전송된 채널의 왜곡에 대한 통계적 분석 및 평가는 논란의 여지가 있습니다. 우리는 광케이블 TV 시스템에 대해 각 캐리어가 16Mbps를 전송하는 80개의 주파수 분할 다중화 16-QAM 채널의 왜곡을 평가했습니다. 먼저 상호 변조 생성물을 식별하기 위해 각 전송 채널에서 간섭을 일으키는 왜곡 성분을 열거했습니다. 그런 다음 선택한 채널에서 각 종류의 왜곡 전력과 케이블 TV의 정현파 및 디지털 변조 반송파의 상호 변조 왜곡의 진폭 분포를 LD의 광 변조 깊이(OMD)의 함수로 정확하게 측정했습니다. 그리고 OMD가 증가함에 따라 확률분포함수(PDF)가 어떻게 변하는지 명확히 했습니다. 또한 XNUMX-QAM 신호의 BER 성능을 측정하여 다양한 왜곡 소스의 상호 변조 동작과 비교했습니다. 우리는 디지털 캐리어의 상호 변조 왜곡의 진폭 분포가 열 잡음의 진폭 분포와 다르다는 증거를 발견했습니다. 실험 결과, 모든 원하지 않는 신호 간의 상호 변조 왜곡 비율이 OMD에 따라 변할 때 상호 변조 왜곡의 PDF가 변경되는 것으로 나타났습니다. BER 성능은 반송파 대 간섭 잡음 전력비(CIR)가 동일한 경우에도 아날로그 및 디지털 반송파의 상호 변조에 따라 달라졌습니다.
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Naoyoshi NAKAMURA, Takuya KURAKAKE, Yasuhiro ITO, Mikio MAEDA, Kimiyuki OYAMADA, "Amplitude Probability Distribution of Intermodulation Distortion in Multichannel Digital Optical Cable Transmission" in IEICE TRANSACTIONS on Communications,
vol. E82-B, no. 8, pp. 1154-1161, August 1999, doi: .
Abstract: The statistical behavior of the amplitude probability distribution of intermodulation distortion interference in multichannel optical-cable TV systems was experimentally investigated. In multichannel transmission, the non-linearity of a laser diode (LD) or an electrical amplifier can cause intermodulation distortion (composite-second-order beat; CSO, composite-triple-beat; CTB, etc. ). Even though it has been discussed as laser-clipping distortion, intermodulation distortion is usually distortion from AM-VSB carriers. The statistical analysis and evaluation of the distortion in transmitted channel is in controversial. We evaluated the distortion in 20 frequency-division-multiplexed 16-QAM channels, with each carrier carrying 80 Mbps for an optical cable TV system. We first enumerated the distortion components causing interference in each transmission channel so as to identify the intermodulation products. Then, in selected channels, we precisely measured the power of each kind of distortion and the amplitude distributions of the intermodulation distortion from sinusoidal and digital-modulated carriers on cable TV as a function of optical modulation depth (OMD) of LD. And we clarified how the probability distribution function (PDF) changed as the OMD increased. Also, the BER performance of a 16-QAM signal was measured and compare to the intermodulation behavior of the different distortion sources. We found evidence that the amplitude distribution of intermodulation distortion from digital carriers differs from that of thermal noise. Experimental results showed that the PDF of the intermodulation distortion changed when the ratio of intermodulation distortion among all undesired signals varied with the OMD. The BER performance varied with intermodulation of both analogue and digital carriers even when the carrier to interference noise power ratio (CIR) is the same.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e82-b_8_1154/_p
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@ARTICLE{e82-b_8_1154,
author={Naoyoshi NAKAMURA, Takuya KURAKAKE, Yasuhiro ITO, Mikio MAEDA, Kimiyuki OYAMADA, },
journal={IEICE TRANSACTIONS on Communications},
title={Amplitude Probability Distribution of Intermodulation Distortion in Multichannel Digital Optical Cable Transmission},
year={1999},
volume={E82-B},
number={8},
pages={1154-1161},
abstract={The statistical behavior of the amplitude probability distribution of intermodulation distortion interference in multichannel optical-cable TV systems was experimentally investigated. In multichannel transmission, the non-linearity of a laser diode (LD) or an electrical amplifier can cause intermodulation distortion (composite-second-order beat; CSO, composite-triple-beat; CTB, etc. ). Even though it has been discussed as laser-clipping distortion, intermodulation distortion is usually distortion from AM-VSB carriers. The statistical analysis and evaluation of the distortion in transmitted channel is in controversial. We evaluated the distortion in 20 frequency-division-multiplexed 16-QAM channels, with each carrier carrying 80 Mbps for an optical cable TV system. We first enumerated the distortion components causing interference in each transmission channel so as to identify the intermodulation products. Then, in selected channels, we precisely measured the power of each kind of distortion and the amplitude distributions of the intermodulation distortion from sinusoidal and digital-modulated carriers on cable TV as a function of optical modulation depth (OMD) of LD. And we clarified how the probability distribution function (PDF) changed as the OMD increased. Also, the BER performance of a 16-QAM signal was measured and compare to the intermodulation behavior of the different distortion sources. We found evidence that the amplitude distribution of intermodulation distortion from digital carriers differs from that of thermal noise. Experimental results showed that the PDF of the intermodulation distortion changed when the ratio of intermodulation distortion among all undesired signals varied with the OMD. The BER performance varied with intermodulation of both analogue and digital carriers even when the carrier to interference noise power ratio (CIR) is the same.},
keywords={},
doi={},
ISSN={},
month={August},}
부
TY - JOUR
TI - Amplitude Probability Distribution of Intermodulation Distortion in Multichannel Digital Optical Cable Transmission
T2 - IEICE TRANSACTIONS on Communications
SP - 1154
EP - 1161
AU - Naoyoshi NAKAMURA
AU - Takuya KURAKAKE
AU - Yasuhiro ITO
AU - Mikio MAEDA
AU - Kimiyuki OYAMADA
PY - 1999
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E82-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 1999
AB - The statistical behavior of the amplitude probability distribution of intermodulation distortion interference in multichannel optical-cable TV systems was experimentally investigated. In multichannel transmission, the non-linearity of a laser diode (LD) or an electrical amplifier can cause intermodulation distortion (composite-second-order beat; CSO, composite-triple-beat; CTB, etc. ). Even though it has been discussed as laser-clipping distortion, intermodulation distortion is usually distortion from AM-VSB carriers. The statistical analysis and evaluation of the distortion in transmitted channel is in controversial. We evaluated the distortion in 20 frequency-division-multiplexed 16-QAM channels, with each carrier carrying 80 Mbps for an optical cable TV system. We first enumerated the distortion components causing interference in each transmission channel so as to identify the intermodulation products. Then, in selected channels, we precisely measured the power of each kind of distortion and the amplitude distributions of the intermodulation distortion from sinusoidal and digital-modulated carriers on cable TV as a function of optical modulation depth (OMD) of LD. And we clarified how the probability distribution function (PDF) changed as the OMD increased. Also, the BER performance of a 16-QAM signal was measured and compare to the intermodulation behavior of the different distortion sources. We found evidence that the amplitude distribution of intermodulation distortion from digital carriers differs from that of thermal noise. Experimental results showed that the PDF of the intermodulation distortion changed when the ratio of intermodulation distortion among all undesired signals varied with the OMD. The BER performance varied with intermodulation of both analogue and digital carriers even when the carrier to interference noise power ratio (CIR) is the same.
ER -