High Resolution 3-D Imaging

Chiang, Chien-Kuo; Chung, Boon-Kuan

doi:10.1163/156939305775526016

Cited by 6 publications

(3 citation statements)

References 11 publications

(15 reference statements)

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“…However, this is not important because our main purpose is to illustrate that the transformation based approaches can reduce the dimensions of scattering data, tolerate noise effects and achieve high recognition rate in such angular-diversity arrangements. From physical points of view, the radar recognition from RCS is basically an approximate approach of inverse scattering [9][10][11][12][13][14]. Similar to the angular-diversity reconstruction of target shape in inverse scattering, the target ships are well classified by their angular-diversity RCS characteristics in this study.…”

Section: Resultsmentioning

confidence: 93%

Angular-Diversity Radar Recognition of Ships by Transformation Based Approaches --- Including Noise Effects

Lee¹,

Huang

2007

PIER

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Abstract-In this paper, the angular-diversity radar recognition of ships is given by transformation based approaches with noise effects taken into consideration. The ships and sea roughness are considered by simplified models in the simulation. The goal is to identify the similarity between the unknown target ship and known ships. Initially, the angular-diversity radar cross sections (RCS) from a ship are collected to constitute RCS vectors (usually largedimensional). These RCS vectors are projected into the eigenspace (usually small-dimensional) and radar recognition is then performed on the eigenspace. Numerical examples show that high recognition rate can be obtained by the proposed schemes. The radar recognition of ships in this study is straightforward and efficient. Therefore, it can be applied to many other radar applications.

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Section: Resultsmentioning

confidence: 93%

Angular-Diversity Radar Recognition of Ships by Transformation Based Approaches --- Including Noise Effects

Lee¹,

Huang

2007

PIER

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“…Over the past few decades, there were a considerable number of researchers who investigated on the 2-D and 3-D image reconstruction techniques [32][33][34][35][36][37][38][39][40][41][42][43][44]. The image reconstruction technique, Range Migration Algorithm is implemented with the aim to produce 3-D radar image.…”

Section: Introductionmentioning

confidence: 99%

Design and Construction of Wideband Vna Ground-Based Radar System With Real and Synthetic Aperture Measurement Capabilities

Lim¹,

Koo²

2008

PIER

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Abstract-This paper presents the design and construction of an advanced wideband, automated radar system. With the aid of Vector Network Analyzer (VNA), a wideband ground-based system can be achieved with proper Radio Frequency (RF) circuitry integration. The RF circuitry is designed specifically to configure the proposed system to be able to measure full linear polarimetric scattering matrices of the area of interest. Besides, quasi-monostatic horn antenna configuration is chosen to transmit and receive the electromagnetic wave. The goal of this paper is to demonstrate the real and synthetic aperture capabilities of the system in outdoor measurement with the microwave frequency range from 2 to 7 GHz. Coupled with the integration of the Automatic Antenna Positioning System (AAPS), the constructed system is able to perform real and synthetic aperture radar measurements. A series of measurement was done on real aperture radar measurement using point target for validity purpose. The overall results show good agreement with the theoretical values. On the other hand, the proposed system is capable to performing a radar imaging measurement. A preliminary analysis is done on a 45 days old rice field. A three dimensional (3-D) radar image has also been constructed successfully with Range Migration Technique (RMA). The result shows good potential of the system in constructing radar imaging of natural target.

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“…Passive millimeter wave imaging system can be used to obtain imaging information through clouds, dusts, flames, and other obstructions render visible systems ineffective. These applications which benefit from passive imaging are concealed weapons detections, aircraft landing aid in fog and all-weather driver assistance [1][2][3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Signal Model Analysis of a 35ghz Alternating Current Direct Detection Receiver

Yang¹,

Guan²,

Xu³

et al. 2008

PIER

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Abstract-A 35 GHz alternating current (AC) direct detection receiver for passive imaging has been studied and presented. The Monolithic Microwave Integrated Circuits (MMIC) Low Noise Amplifiers (LNAs) with high gain and wide band are cascaded to provide enough gain for high sensitivity in the receiver. On basic of discussing the structure and mechanical chopping modulation, the signal model and compensation mechanism is emphatically analyzed. Finally, the imaging result is given.

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High Resolution 3-D Imaging

Cited by 6 publications

References 11 publications

Angular-Diversity Radar Recognition of Ships by Transformation Based Approaches --- Including Noise Effects

Angular-Diversity Radar Recognition of Ships by Transformation Based Approaches --- Including Noise Effects

Design and Construction of Wideband Vna Ground-Based Radar System With Real and Synthetic Aperture Measurement Capabilities

Signal Model Analysis of a 35ghz Alternating Current Direct Detection Receiver

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