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
Tingkah laku statistik taburan kebarangkalian amplitud gangguan herotan intermodulasi dalam sistem TV kabel optik berbilang saluran telah disiasat secara eksperimen. Dalam penghantaran berbilang saluran, ketak-linearan diod laser (LD) atau penguat elektrik boleh menyebabkan herotan intermodulasi (rentak tertib tertib kedua komposit; CSO, komposit-triple-beat; CTB, dsb. ). Walaupun ia telah dibincangkan sebagai herotan keratan laser, herotan intermodulasi biasanya adalah herotan daripada pembawa AM-VSB. Analisis statistik dan penilaian herotan dalam saluran yang dihantar adalah kontroversi. Kami menilai herotan dalam 20 saluran 16-QAM berbilang pembahagian frekuensi, dengan setiap pembawa membawa 80 Mbps untuk sistem TV kabel optik. Kami mula-mula menyenaraikan komponen herotan yang menyebabkan gangguan dalam setiap saluran penghantaran untuk mengenal pasti produk intermodulasi. Kemudian, dalam saluran terpilih, kami mengukur dengan tepat kuasa setiap jenis herotan dan taburan amplitud herotan intermodulasi daripada pembawa termodulat sinusoidal dan digital pada TV kabel sebagai fungsi kedalaman modulasi optik (OMD) LD. Dan kami menjelaskan bagaimana fungsi pengedaran kebarangkalian (PDF) berubah apabila OMD meningkat. Selain itu, prestasi BER bagi isyarat 16-QAM telah diukur dan dibandingkan dengan tingkah laku intermodulasi sumber herotan yang berbeza. Kami mendapati bukti bahawa taburan amplitud herotan intermodulasi daripada pembawa digital berbeza daripada bunyi terma. Keputusan eksperimen menunjukkan bahawa PDF herotan intermodulasi berubah apabila nisbah herotan intermodulasi antara semua isyarat yang tidak diingini berubah dengan OMD. Prestasi BER berbeza dengan intermodulasi kedua-dua pembawa analog dan digital walaupun apabila nisbah kuasa hingar (CIR) pembawa kepada gangguan adalah sama.
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Salinan
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 Electronics,
vol. E82-C, no. 8, pp. 1420-1427, 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/electronics/10.1587/e82-c_8_1420/_p
Salinan
@ARTICLE{e82-c_8_1420,
author={Naoyoshi NAKAMURA, Takuya KURAKAKE, Yasuhiro ITO, Mikio MAEDA, Kimiyuki OYAMADA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Amplitude Probability Distribution of Intermodulation Distortion in Multichannel Digital Optical Cable Transmission},
year={1999},
volume={E82-C},
number={8},
pages={1420-1427},
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},}
Salinan
TY - JOUR
TI - Amplitude Probability Distribution of Intermodulation Distortion in Multichannel Digital Optical Cable Transmission
T2 - IEICE TRANSACTIONS on Electronics
SP - 1420
EP - 1427
AU - Naoyoshi NAKAMURA
AU - Takuya KURAKAKE
AU - Yasuhiro ITO
AU - Mikio MAEDA
AU - Kimiyuki OYAMADA
PY - 1999
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E82-C
IS - 8
JA - IEICE TRANSACTIONS on Electronics
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 -