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ANALYSIS OF TARGET MODELS AND EVALUATION OF DETECTION CAPABILITY FOR DIFFERENT FALSE ALARM RATE IN PRESENCE OF FLUCTUATING TARGETS USING SWERLING MODEL IN RADAR SYSTEM

Target Detection is the most important factors in RADAR system and many researches have already done their research to improve the detection capability. This detection can be done for two types of targets, non-fluctuating targets and fluctuating targets. In practical cases, maximum targets are fl...

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Yazar: ISLAM, MD. MAYNUL
Materyal Türü: Tez
Dil:İngilizce
Baskı/Yayın Bilgisi: DEPARTMENT OF ELECTRICAL, ELECTRONIC AND COMMUNICATION ENGINEERING 2022
Online Erişim:http://dspace.mist.ac.bd:8080/xmlui/handle/123456789/714
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author ISLAM, MD. MAYNUL
author_browse ISLAM, MD. MAYNUL
author_facet ISLAM, MD. MAYNUL
author_sort ISLAM, MD. MAYNUL
collection DSpace
description Target Detection is the most important factors in RADAR system and many researches have already done their research to improve the detection capability. This detection can be done for two types of targets, non-fluctuating targets and fluctuating targets. In practical cases, maximum targets are fluctuating in nature. Analysis of false alarm rate can be a lead to the moderate value of threshold voltage. In this thesis, comparative analysis is carried out between probability of detection (Pd) and Constant False Alarm Rate (CFAR) for four different types of Swerling model. Conventional Cell Averaging CFAR is used here for the simulation. In order to maintain a constant probability of false alarm the threshold value must be continuously updated based on the estimates of the noise variance. In this research, comparison is carried for CFAR loss versus gamma function for four types of Swerling model. Pulse compression is also introduced in this research by adding frequency modulation to a long pulse at transmission and by using a matched filter receiver in order to compress the received signal. Further, performance analysis of detection capability of RADAR is found out for atmospheric attenuation in this research work by carrying out simulations with different system parameters. Comparison of results is also carried out with existing literature to validate the analytical approach.
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spelling oai:localhost:123456789-7142022-06-12T05:14:41Z ANALYSIS OF TARGET MODELS AND EVALUATION OF DETECTION CAPABILITY FOR DIFFERENT FALSE ALARM RATE IN PRESENCE OF FLUCTUATING TARGETS USING SWERLING MODEL IN RADAR SYSTEM ISLAM, MD. MAYNUL Target Detection is the most important factors in RADAR system and many researches have already done their research to improve the detection capability. This detection can be done for two types of targets, non-fluctuating targets and fluctuating targets. In practical cases, maximum targets are fluctuating in nature. Analysis of false alarm rate can be a lead to the moderate value of threshold voltage. In this thesis, comparative analysis is carried out between probability of detection (Pd) and Constant False Alarm Rate (CFAR) for four different types of Swerling model. Conventional Cell Averaging CFAR is used here for the simulation. In order to maintain a constant probability of false alarm the threshold value must be continuously updated based on the estimates of the noise variance. In this research, comparison is carried for CFAR loss versus gamma function for four types of Swerling model. Pulse compression is also introduced in this research by adding frequency modulation to a long pulse at transmission and by using a matched filter receiver in order to compress the received signal. Further, performance analysis of detection capability of RADAR is found out for atmospheric attenuation in this research work by carrying out simulations with different system parameters. Comparison of results is also carried out with existing literature to validate the analytical approach. 2022-06-12T05:14:38Z 2022-06-12T05:14:38Z 2019-01 Thesis http://dspace.mist.ac.bd:8080/xmlui/handle/123456789/714 en application/pdf DEPARTMENT OF ELECTRICAL, ELECTRONIC AND COMMUNICATION ENGINEERING
spellingShingle ISLAM, MD. MAYNUL
ANALYSIS OF TARGET MODELS AND EVALUATION OF DETECTION CAPABILITY FOR DIFFERENT FALSE ALARM RATE IN PRESENCE OF FLUCTUATING TARGETS USING SWERLING MODEL IN RADAR SYSTEM
title ANALYSIS OF TARGET MODELS AND EVALUATION OF DETECTION CAPABILITY FOR DIFFERENT FALSE ALARM RATE IN PRESENCE OF FLUCTUATING TARGETS USING SWERLING MODEL IN RADAR SYSTEM
title_full ANALYSIS OF TARGET MODELS AND EVALUATION OF DETECTION CAPABILITY FOR DIFFERENT FALSE ALARM RATE IN PRESENCE OF FLUCTUATING TARGETS USING SWERLING MODEL IN RADAR SYSTEM
title_fullStr ANALYSIS OF TARGET MODELS AND EVALUATION OF DETECTION CAPABILITY FOR DIFFERENT FALSE ALARM RATE IN PRESENCE OF FLUCTUATING TARGETS USING SWERLING MODEL IN RADAR SYSTEM
title_full_unstemmed ANALYSIS OF TARGET MODELS AND EVALUATION OF DETECTION CAPABILITY FOR DIFFERENT FALSE ALARM RATE IN PRESENCE OF FLUCTUATING TARGETS USING SWERLING MODEL IN RADAR SYSTEM
title_short ANALYSIS OF TARGET MODELS AND EVALUATION OF DETECTION CAPABILITY FOR DIFFERENT FALSE ALARM RATE IN PRESENCE OF FLUCTUATING TARGETS USING SWERLING MODEL IN RADAR SYSTEM
title_sort analysis of target models and evaluation of detection capability for different false alarm rate in presence of fluctuating targets using swerling model in radar system
url http://dspace.mist.ac.bd:8080/xmlui/handle/123456789/714
work_keys_str_mv AT islammdmaynul analysisoftargetmodelsandevaluationofdetectioncapabilityfordifferentfalsealarmrateinpresenceoffluctuatingtargetsusingswerlingmodelinradarsystem

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