پديد آورنده :
نقش، محمد مهدي
عنوان :
طراحي شكل موج در سيستم هاي راداري به منظور بهبود كارايي آشكار سازي
مقطع تحصيلي :
كارشناسي ارشد
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده برق و كامپيوتر
صفحه شمار :
پانزده،210ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
محمود مدرس هاشمي
توصيفگر ها :
بهينه سازي , رادار , طراحي كد , غير محدب
تاريخ نمايه سازي :
29/2/93
استاد داور :
محمد مهدي نايبي،محمدرضا تابان،عليمحمد دوست حسيني، ابوالقاسم زيدآبادي نژاد
دانشكده :
مهندسي برق و كامپيوتر
كد ايرانداك :
ID625 دكتري
چكيده انگليسي :
Radar Waveform Design for Detection Performance Improvement Mohammad Mahdi Naghsh mm naghsh@ec iut ac ir ECE Dept Isfahan University of Technology Isfahan 84156 83111 Iran Supervisor Prof Mahmoud Modarres Hashemi Advisor Prof Abbas Sheikhi Abstract In this dissertation we study the problem of waveform design for improvement of detection performance in radar systems To this end for single input single output SISO systems we consider the effect of the signal dependent interference at receive side i e clutter and the fact that Doppler shift of targets are often unknown at the transmit side The raised design problems for various situation are non convex and in some cases belong to classes of NP hard problems We devise several methods to tackle the design problems and extend the proposed algorithms to the case of constrained design peak to average power ratio PAR or similarity constraint In case of multiple input multiple output MIMO systems we derive the exact theoretical performance expressions of the optimal detector in Gaussian interference Due to the complicated forms of the expressions we use the most common information theoretic criteria including Bhattacharyya distance KL divergence J divergence and mutual information as design metrics We cast the design problems under a uni ed optimization framework and devise two algorithms to deal with these problems We extend the proposed methods to the case of PAR constrained design We also propose a novel method for constrained transmit code design in non orthogonal MIMO radars Keywords Detection Doppler shift optimization waveform design signal dependent inter ference Isfahan University of Technology University of Shiraz
استاد راهنما :
محمود مدرس هاشمي
استاد داور :
محمد مهدي نايبي،محمدرضا تابان،عليمحمد دوست حسيني، ابوالقاسم زيدآبادي نژاد
