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
Radar automotif jarak dekat resolusi tinggi pada masa hadapan akan mempunyai kebarangkalian penggera palsu yang lebih tinggi daripada radar resolusi rendah konvensional. Dalam radar resolusi tinggi, isyarat penerimaan menjadi sensitif kepada perbezaan antara objek yang dimaksudkan dan yang tidak diingini. Walau bagaimanapun, radar automotif mesti membezakan sasaran daripada objek latar belakang yang mempunyai susunan saiz yang sama; ia membawa kepada peningkatan kebarangkalian penggera palsu. Dalam kertas kerja ini, litar CFAR untuk mendapatkan kuasa min sasaran, serta kuasa min latar belakang, dicadangkan untuk mengurangkan kebarangkalian penggera palsu untuk radar resolusi tinggi yang bekerja dalam persekitaran automotif. Kaedah yang dicadangkan dinilai secara analitik dengan menggunakan kaedah fungsi ciri. Korelasi spatial juga dipertimbangkan dalam penilaian, kerana saiz kedua-dua sasaran dan objek latar belakang menghampiri dimensi beberapa sel julat. Keputusan menunjukkan CFAR yang dicadangkan dengan penggunaan dua sel julat boleh mengurangkan nisbah 6.4 dB untuk contoh situasi automotif.
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Salinan
Satoshi TAKAHASHI, "A CFAR Circuit with Multiple Detection Cells for Automotive UWB Radars" in IEICE TRANSACTIONS on Communications,
vol. E93-B, no. 6, pp. 1574-1582, June 2010, doi: 10.1587/transcom.E93.B.1574.
Abstract: Future high-resolution short-range automotive radar will have a higher false alarm probability than the conventional low-resolution radar has. In a high-resolution radar, the reception signal becomes sensitive to the difference between intended and unintended objects. However, automotive radars must distinguish targets from background objects that are the same order of size; it leads to an increase in the false alarm probability. In this paper, a CFAR circuit for obtaining the target mean power, as well as the background mean power, is proposed to reduce the false alarm probability for high-resolution radars working in automotive environments. The proposed method is analytically evaluated with use of the characteristic function method. Spatial correlation is also considered in the evaluation, because the sizes of the both target and background objects approach the dimension of several range cells. Result showed the proposed CFAR with use of two alongside range cells could reduce the ratio of 6.4 dB for an example of an automotive situation.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E93.B.1574/_p
Salinan
@ARTICLE{e93-b_6_1574,
author={Satoshi TAKAHASHI, },
journal={IEICE TRANSACTIONS on Communications},
title={A CFAR Circuit with Multiple Detection Cells for Automotive UWB Radars},
year={2010},
volume={E93-B},
number={6},
pages={1574-1582},
abstract={Future high-resolution short-range automotive radar will have a higher false alarm probability than the conventional low-resolution radar has. In a high-resolution radar, the reception signal becomes sensitive to the difference between intended and unintended objects. However, automotive radars must distinguish targets from background objects that are the same order of size; it leads to an increase in the false alarm probability. In this paper, a CFAR circuit for obtaining the target mean power, as well as the background mean power, is proposed to reduce the false alarm probability for high-resolution radars working in automotive environments. The proposed method is analytically evaluated with use of the characteristic function method. Spatial correlation is also considered in the evaluation, because the sizes of the both target and background objects approach the dimension of several range cells. Result showed the proposed CFAR with use of two alongside range cells could reduce the ratio of 6.4 dB for an example of an automotive situation.},
keywords={},
doi={10.1587/transcom.E93.B.1574},
ISSN={1745-1345},
month={June},}
Salinan
TY - JOUR
TI - A CFAR Circuit with Multiple Detection Cells for Automotive UWB Radars
T2 - IEICE TRANSACTIONS on Communications
SP - 1574
EP - 1582
AU - Satoshi TAKAHASHI
PY - 2010
DO - 10.1587/transcom.E93.B.1574
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E93-B
IS - 6
JA - IEICE TRANSACTIONS on Communications
Y1 - June 2010
AB - Future high-resolution short-range automotive radar will have a higher false alarm probability than the conventional low-resolution radar has. In a high-resolution radar, the reception signal becomes sensitive to the difference between intended and unintended objects. However, automotive radars must distinguish targets from background objects that are the same order of size; it leads to an increase in the false alarm probability. In this paper, a CFAR circuit for obtaining the target mean power, as well as the background mean power, is proposed to reduce the false alarm probability for high-resolution radars working in automotive environments. The proposed method is analytically evaluated with use of the characteristic function method. Spatial correlation is also considered in the evaluation, because the sizes of the both target and background objects approach the dimension of several range cells. Result showed the proposed CFAR with use of two alongside range cells could reduce the ratio of 6.4 dB for an example of an automotive situation.
ER -