【摘要】：輸配電設(shè)備絕緣材料的劣化會(huì)導(dǎo)致火花放電的產(chǎn)生。較強(qiáng)放電所激發(fā)的電磁波會(huì)對線路周邊的通信設(shè)備及電磁環(huán)境造成影響。為避免對通信設(shè)備造成電磁干擾,需及時(shí)準(zhǔn)確地探查此類放電性故障點(diǎn)的位置。在基于超高頻定位方法中,由于電力設(shè)備金屬表面會(huì)引起電磁波反射,致使到達(dá)定位用天線陣列的電磁波信號(hào)經(jīng)歷多徑傳播。天線所采集到的電磁波波形中包含了大量干擾成分,導(dǎo)致定位準(zhǔn)確度較差,無法滿足定位需求。深入研究各種到達(dá)時(shí)間差的估算方法及基于到達(dá)時(shí)間差估算結(jié)果的定位算法,并通過數(shù)值仿真研究其在多徑傳播環(huán)境中的適用性及定位準(zhǔn)確度。
[Abstract]:The deterioration of insulation materials in transmission and distribution equipment will lead to spark discharge. The electromagnetic wave excited by strong discharge will affect the communication equipment and electromagnetic environment around the line. In order to avoid electromagnetic interference to communication equipment, it is necessary to detect the location of such discharges in time and accurately. In the ultra-high frequency (UHF) based localization method, the electromagnetic wave signals arriving at the antenna array for positioning are multipath propagated because of the electromagnetic wave reflection caused by the metal surface of the power equipment. The electromagnetic wave waveform collected by antenna contains a large number of interference components, which leads to poor positioning accuracy and can not meet the needs of location. The estimation methods of time difference of arrival and the localization algorithm based on the result of time of arrival estimation are studied in depth. The applicability and accuracy of location in multipath propagation environment are studied by numerical simulation.
【作者單位】： 南方電網(wǎng)科學(xué)研究院有限責(zé)任公司;
【基金】：南方電網(wǎng)科學(xué)研究院有限責(zé)任公司青年科技創(chuàng)新基金(2015)資助項(xiàng)目
【分類號(hào)】：TM855
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本文編號(hào)：2270288