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
Tujuan kertas kerja ini adalah untuk meningkatkan sensitiviti pengesanan interferometri radio. Pembangunan teknik pemprosesan isyarat jalur lebar adalah perlu untuk interferometri radio sensitiviti tinggi. Teknik pensampelan peringkat tinggi boleh mencapai lebar jalur yang lebih luas daripada sistem penukaran jalur asas lebar yang mahal. Teknik pensampelan berlebihan boleh meningkatkan kehilangan pengkuantitian daripada 11.89% kepada 3.99% pada persampelan terkuantiti 4 peringkat. Selain itu, penapis digital boleh mengurangkan bunyi lipatan yang ditanggung oleh tindak balas frekuensi bukan segi empat tepat pada proses pensampelan. Adalah disahkan bahawa sistem penukaran A/D jalur lebar dan kehilangan rendah boleh direalisasikan dengan melaksanakan teknik pensampelan peringkat tinggi, pensampelan atas dan penapisan digital. Dalam makalah ini, ciri-ciri utama yang memfokuskan kepada teknik lanjutan untuk astronomi radio ini dibentangkan secara terperinci.
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Salinan
Satoru IGUCHI, Noriyuki KAWAGUCHI, "Higher-Order Sampling, Over Sampling and Digital Filtering Techniques for Radio Interferometry" in IEICE TRANSACTIONS on Communications,
vol. E85-B, no. 9, pp. 1806-1816, September 2002, doi: .
Abstract: The purpose of this paper is to improve the detection sensitivity of radio interferometry. The development of wideband signal processing techniques is necessary for high-sensitivity radio interferometry. The higher-order sampling technique can achieve wider bandwidth than expensive wide-baseband conversion system. The over sampling technique can improve the quantization loss from 11.89% to 3.99% at the 4-level quantized sampling. Moreover, the digital filter can reduce the folding noise incurred by the non-rectangular frequency response at a sampling process. It is confirmed that the wideband and low-loss A/D conversion system may be realized by implementing the higher-order sampling, over sampling and digital filtering techniques. In this paper, the key features focusing on these advanced techniques for radio astronomy are presented in detail.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e85-b_9_1806/_p
Salinan
@ARTICLE{e85-b_9_1806,
author={Satoru IGUCHI, Noriyuki KAWAGUCHI, },
journal={IEICE TRANSACTIONS on Communications},
title={Higher-Order Sampling, Over Sampling and Digital Filtering Techniques for Radio Interferometry},
year={2002},
volume={E85-B},
number={9},
pages={1806-1816},
abstract={The purpose of this paper is to improve the detection sensitivity of radio interferometry. The development of wideband signal processing techniques is necessary for high-sensitivity radio interferometry. The higher-order sampling technique can achieve wider bandwidth than expensive wide-baseband conversion system. The over sampling technique can improve the quantization loss from 11.89% to 3.99% at the 4-level quantized sampling. Moreover, the digital filter can reduce the folding noise incurred by the non-rectangular frequency response at a sampling process. It is confirmed that the wideband and low-loss A/D conversion system may be realized by implementing the higher-order sampling, over sampling and digital filtering techniques. In this paper, the key features focusing on these advanced techniques for radio astronomy are presented in detail.},
keywords={},
doi={},
ISSN={},
month={September},}
Salinan
TY - JOUR
TI - Higher-Order Sampling, Over Sampling and Digital Filtering Techniques for Radio Interferometry
T2 - IEICE TRANSACTIONS on Communications
SP - 1806
EP - 1816
AU - Satoru IGUCHI
AU - Noriyuki KAWAGUCHI
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E85-B
IS - 9
JA - IEICE TRANSACTIONS on Communications
Y1 - September 2002
AB - The purpose of this paper is to improve the detection sensitivity of radio interferometry. The development of wideband signal processing techniques is necessary for high-sensitivity radio interferometry. The higher-order sampling technique can achieve wider bandwidth than expensive wide-baseband conversion system. The over sampling technique can improve the quantization loss from 11.89% to 3.99% at the 4-level quantized sampling. Moreover, the digital filter can reduce the folding noise incurred by the non-rectangular frequency response at a sampling process. It is confirmed that the wideband and low-loss A/D conversion system may be realized by implementing the higher-order sampling, over sampling and digital filtering techniques. In this paper, the key features focusing on these advanced techniques for radio astronomy are presented in detail.
ER -