Bu kaydın yasal hükümlere uygun olmadığını düşünüyorsanız lütfen sayfa sonundaki Hata Bildir bağlantısını takip ederek bildirimde bulununuz. Kayıtlar ilgili üniversite yöneticileri tarafından eklenmektedir. Nadiren de olsa kayıtlarla ilgili hatalar oluşabilmektedir. MİTOS internet üzerindeki herhangi bir ödev sitesi değildir!

USE OF MULTIPATHS IN PASSIVE LOCALIZATION OF EMITTERS

BROWSE_DETAIL_CREATION_DATE: 07-09-2016

BROWSE_DETAIL_IDENTIFIER_SECTION

BROWSE_DETAIL_TYPE: Thesis

BROWSE_DETAIL_SUB_TYPE: EngD

BROWSE_DETAIL_PUBLISH_STATE: Unpublished

BROWSE_DETAIL_FORMAT: PDF Document

BROWSE_DETAIL_LANG: English

BROWSE_DETAIL_SUBJECTS: TECHNOLOGY, Electrical engineering. Electronics. Nuclear engineering, Electronics,

BROWSE_DETAIL_CREATORS: Dalveren, Yaser (Author),

BROWSE_DETAIL_CONTRIBUTERS: Kara, Ali (Advisor),

BROWSE_DETAIL_TAB_KEYWORDS

electronic support measures systems, Radar emitter localization, Time difference of arrival, Multipath exploitation


BROWSE_DETAIL_TAB_ABSTRACT

This thesis addresses exploiting multipath scattering in passive localization of radar emitters around islands and in the littoral. The idea is based on the use of multipath scattered signals as virtual sensor along with the help of geographical information systems. In this way, single sensor, typically Electronic Support Measures (ESM) receiver, passive localization can be achieved for radar emitters. The proposed approach is initiated with estimating candidate multipath scattering centers over irregular terrain using electromagnetic wave theory. To do this, ESM receivers’ angle of arrival (AOA) and time of arrival (TOA) information are required for directly received radar pulses along with multipath scattered pulses. Then, the problem turns out to be multiple sensor localization problem for which classical time difference of arrivals (TDOA) based techniques can easily be applied. However, as the multipath scattering involves diffuse components over irregular terrain, there is high degree of uncertainty in location of scattering centers as virtual sensors. Apparently, this causes large localization errors in TDOA. To reduce this error, segmentation of uncertainty regions is proposed, and then radio wave propagation principles can be implemented to estimate location of candidate scattering centers. Once candidate scattering centers are determined, a reliability based weightingivmethod is adopted to estimate the radar emitter location. Simulation results regarding with a simplified 2D model is presented.


BROWSE_DETAIL_TAB_TOC



BROWSE_DETAIL_TAB_DESCRIPTION



BROWSE_DETAIL_TAB_RIGHTS



BROWSE_DETAIL_TAB_NOTES



BROWSE_DETAIL_TAB_REFERENCES


BROWSE_DETAIL_TAB_REFERENCED_BYS

BROWSE_DETAIL_GOTO_LIST

 

TEXT_STATS

  • TEXT_RECORD_STATS
    • TEXT_STATS_THIS_MONTH: 3
    • TEXT_STATS_TOTAL: 2417
  • TEXT_ONLINE_STATS
    • TEXT_ONLINE_STATS_TOTALONLINEVISITOR: 18
    • TEXT_ONLINE_STATS_TOTALONLINEUSER: 0
    • TEXT_STATS_TOTAL: 18

LINK_STATS