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Based on multiple television signals passive radar imaging algorithm

Author: NiuYiHua
Tutor: WangJun
School: Xi'an University of Electronic Science and Technology
Course: Signal and Information Processing
Keywords: Passive radar imaging External radiation source Double ( multiple ) radar Doppler coherence tomography (CDT) Polar format
CLC: TN958.97
Type: Master's thesis
Year: 2007
Downloads: 118
Quote: 1
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Abstract


Use outside sources of dual (multi) radar is one of the highlights in agro-scientific research in the current new system radar, it give full play to the advantages of conventional radars, and has strong ability to survive. The radar system because of its good performance of "four counteraction" by people more and more attention. Based on bistatic radar and ISAR imaging technology as the foundation, discusses the use of multiple television stations and a single receiver implementation turntable imaging of moving targets. Base more passive radar imaging model is established, analyzes the source of radar target echo form of imaging system, through theoretical derivation, get the target scattering function and the Fourier transform of the relations between the receiving signal, was given by using multiple television stations as the direct Fourier reconstruction of external radiation source (DFT) algorithm and polar format reconstruction algorithm. Select 15 television station signals as the external radiation source, the simulation experiment and the analysis and comparison of the two algorithms performance, verify the feasibility of the algorithm, and the factors affecting the imaging quality is discussed.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radar > Radar: institutional sub- > Passive radar
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