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Design of Time Difference of Arrival Direction Finding Receiver for Short Base Lines

Author: ZhaoBingZuo
Tutor: LuJinHui;XingXiaoMing
School: Nanjing University of Technology and Engineering
Course: Electronics and Communication Engineering
Keywords: Short baseline Channelized receiver Frequency measurement TDOA DF
CLC: TN974
Type: Master's thesis
Year: 2009
Downloads: 46
Quote: 0
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Abstract


Electronic countermeasures , to determine the orientation of the space radiation source signal is one of the important tasks in the fields of reconnaissance and passive detection . Direction finding methods : maximum finding , Pulse Amplitude Comparison to the phase difference between the interferometer to measure the time difference measured to . The premise and basis of the time difference measured to the time difference of arrival measurements (TDOA) , time difference of arrival measurements to finding mainly : high precision , wide -band , high speed , without finding vague . Passive direction finding system and passive positioning system have been applied . The paper discusses in detail the time difference measurement to the principle , and a careful analysis of the various factors receiver affect the accuracy of the finding , especially affecting the measurement accuracy of the key factors TDOA detailed analysis and discussion . The paper also describes the the receiver radiation source parameter measurement method and the channelized receiver parameter measurement method . And from a the improve system TDOA measurement accuracy perspective , on how to reduce channel consistency requirements were analyzed and compared . According to the results of theoretical analysis , the realization of the main technical indicators are described in detail to the design of the receiving system , the composition of the system , the time difference measured . The last time difference measured application system to receive the analysis and description of the technology 's future development prospects .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Electronic warfare ( jamming and anti - jamming ) > Radar electronic countermeasures
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