3d Bistatic Omega-K Imaging Algorithm for Near Range Microwave Imaging Systems With Bistatic Planar Scanning Geometry

Qi, Yue; Tan, Weixian; Wang, Yanping; Hong, Wen; Wu, Yirong

doi:10.2528/pier11090205

Cited by 21 publications

(12 citation statements)

References 13 publications

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“…This leads to the ultrasound imaging can not provide a high contrast in early breast cancer detection. Therefore, there has been a great deal of interests in new breast cancer detection techniques in recent years [4][5][6][7][8][9][10]. Microwave imaging has been researched in early breast cancer detection in [4].…”

Section: Introductionmentioning

confidence: 99%

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An Integrated Simulation Approach and Experimental Research on Microwave Induced Thermo-Acoustic Tomography System

Song¹,

Zhao²,

Wang³

et al. 2013

PIER

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Abstract-Microwave induced thermo-acoustic tomography (MI-TAT) has great potential in early breast cancer detection because it utilizes the advantages of both microwave imaging and ultrasound imaging. In this paper, a fast and efficient simulation approach based on a hybrid method which combines finite integration time domain (FITD) method and pseudo-spectral time domain (PSTD) method is developed. By using this approach, energy deposition of biology tissue illuminated by electromagnetic fields can be accurately simulated. Meanwhile, acoustic properties of the tissue can be efficiently simulated as well. Based on this approach, a MITAT model is created and some simulated results are analyzed. Furthermore, some real breast tissues are adopted to perform the thermo-acoustic imaging experiment. Comparisons between experimental and simulated results are made. The feasibility and effectiveness of the proposed approach are demonstrated by both numerical simulations and experimental results.

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Section: Introductionmentioning

confidence: 99%

“…It takes the advantage of high contrast in the dielectric properties between malignant and normal tissues for microwave frequency spectrum. However, it has the drawback of low spatial resolution due to the relatively long wavelength [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

An Integrated Simulation Approach and Experimental Research on Microwave Induced Thermo-Acoustic Tomography System

Song¹,

Zhao²,

Wang³

et al. 2013

PIER

View full text Add to dashboard Cite

show abstract

“…Moreover, it is an extension of the traditional monostatic FMCW SAR with increased capabilities, reliability and flexibility [13][14][15][16][17][18][19][20][21][22][23][24], while keeping the advantages of small size, low cost and agile reaction. Bistatic FMCW SAR have a great potential for remote sensing applications in airborne and spaceborne remote sensing fields, such as frequent monitoring, high resolution imaging, wide-swath detecting, scene classification, and single pass cross-track interferometry, especially where frequent revisits at low cost are needed or where small size is required [13][14][15][16][17][18][19][20][21][22][23][24]. Thus the subject of design, processing, and data interpretation for the bistatic FMCW SAR mode is gaining an increasingly wide interest in the remote sensing scientific community.…”

Section: Introductionmentioning

confidence: 99%

Bistatic FMCW Sar Raw Signal Simulator for Extended Scenes

Liu¹,

Deng²,

Wang³

et al. 2012

PIER

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Abstract-By mounting the transmitter and receiver of Frequency Modulated Continuous Wave (FMCW) Synthetic Aperture Radar (SAR) system on separate platforms, bistatic FMCW SAR offers more considerable capabilities, reliability and flexibility while maintaining the small size, low cost and agile reaction. The bistatic FMCW SAR raw signal simulator is highly required to quantitatively support the design of bistatic FMCW SAR, to help mission planning, test processing algorithms, and analyze jamming and noises. Bistatic FMCW SAR raw signal can be exactly simulated target-by-target in time domain but with extremely time and memory consuming, especially when extended scenes are considered. In this paper, bistatic FMCW SAR signal model and Bistatic Point Target Reference Spectrum (BPTRS) is proposed, based on which a raw signal simulator is developed in the 2-D frequency domain for the first time, where Chirp-Z Transform (CZT) is used to formulate the range migration terms. By taking advantage of Fast Fourier Transform (FFT), the proposed raw signal simulator highly reduces the computational load with respect to the time domain approach. The simulated raw data is verified by analyzing the corresponding images focused by Range Doppler Algorithm (RDA).

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“…Because the microwave radiation absorption rates between tumors and normal tissues are quite different [8,9], the thermo-acoustic image will have high contrast compared with that of acoustic imaging system which has been widely used. Near-field thermo-acoustic tomography system has great potentials for breast cancer imaging [10][11][12][13]. In the system, the imaged sample is placed in the vicinity of antenna to assure optimal near-field coupling.…”

Section: Introductionmentioning

confidence: 99%

System Development of Microwave Induced Thermo-Acoustic Tomography and Experiments on Breast Tumor

Zhao¹,

Song²,

Zhu³

et al. 2013

PIER

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Abstract-Microwave induced thermo-acoustic tomography (MI-TAT) has become a keen research topic in recent years due to its great potential in early breast cancer detection. A secure and accurate MI-TAT system has been established. Some experiments have been made to demonstrate the performance of the MITAT system. Based on an experiment using phantom, some quantitative features of the system have been obtained. Some imaging experiments with real human breast cancer tissues are performed to demonstrate its effectiveness and the potential in clinical diagnosis. Images with both high contrast and fine spatial resolution are achieved by using time reversal mirror (TRM) technique in the imaging processing. Moreover, comparisons between the MITAT system result and an ultrasound imaging system result are made. From the comparison, the MITAT system shows its advantages of better contrast over the ultrasound imaging system. The system and the experiments in this paper verify the mechanism of MITAT for breast cancer detection and provide a prototype basis for clinical practice.

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3d Bistatic Omega-K Imaging Algorithm for Near Range Microwave Imaging Systems With Bistatic Planar Scanning Geometry

Cited by 21 publications

References 13 publications

An Integrated Simulation Approach and Experimental Research on Microwave Induced Thermo-Acoustic Tomography System

An Integrated Simulation Approach and Experimental Research on Microwave Induced Thermo-Acoustic Tomography System

Bistatic FMCW Sar Raw Signal Simulator for Extended Scenes

System Development of Microwave Induced Thermo-Acoustic Tomography and Experiments on Breast Tumor

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