Research of 3-D deceptive interfering method for single-pass spaceborne InSAR

Wu, Zhefeng; Xu, Huaping; Li, Jingwen; Liu, Wei

doi:10.1109/taes.2015.140325

Cited by 10 publications

(15 citation statements)

References 17 publications

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“…Therefore, many researchers proposed new InSAR interfering techniques. They mainly concentrate on using a moving transponder or jointly employing two transponders [18][19][20]. In [18], a moving transponder is used to change the constant phase attached to the imaging output, and the barrage jamming is generated in the final InSAR images.…”

Section: Introductionmentioning

confidence: 99%

“…So, the authors in [19] proposed a new method jointly employing multiple transponders transmitting jamming signals in turn and realized barrage jamming against InSAR. Besides, in [20], the phase of the jamming signals was precisely controlled by modulating two transponders with different complex coefficients to produce a three-dimension (3D) deceptive scene in the InSAR image. The proposed jamming methods are all effective to some extent, but mainly appropriate for interfering single baseline InSAR.…”

Section: Introductionmentioning

confidence: 99%

“…When they are applied against multibaseline InSAR, the jamming effects would decline. Especially, the deceptive jamming generated in [20] would become noisy and could not be used to produce the false scene precisely.…”

Section: Introductionmentioning

confidence: 99%

“…To generate a 3D deceptive scene in the multibaseline InSAR image, motivated by the idea of jamming multichannel SAR by using multiple transponders from [20][21][22], we proposed a novel deceptive jamming method against multibaseline InSAR systems by jointly employing multiple transponders. Without changing the process of the SAR deception jamming generated by a single transponder, each transponder only needs to be modulated with a complex coefficient to generate deception jamming in the multibaseline InSAR system.…”

Section: Introductionmentioning

confidence: 99%

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A New Three-Dimension Deceptive Scene Generation against Single-Pass Multibaseline InSAR Based on Multiple Transponders

Dai

Xing

et al. 2020

Sensors

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The interferometry synthetic aperture radar (InSAR) deceptive jamming method utilizing two synergetic transponders can generate a false three-dimension (3D) scene in a single baseline InSAR image. However, such deceptive capability could be reduced by the multibaseline InSAR system. To obtain effective deception on multibaseline InSAR, a novel deceptive scene generation method jointly employing multiple transponders is proposed. It only demands that each transponder is modulated with a complex coefficient when generating a false point. The complex modulation coefficient can be offline calculated according to the deceptive point coordinate by solving a matrix. Besides, the complex modulation coefficient can be combined with the deceptive scene template, and thus a large 3D deceptive scene is able to be created quickly in the multibaseline InSAR image by using the fast two-dimension (2D) SAR deceptive scene generation algorithm. As long as the number of transponders is not less than the number of antennas of the multibaseline InSAR system, this proposed method is effective. The effectiveness of the proposed method is validated by computer simulations.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A New Three-Dimension Deceptive Scene Generation against Single-Pass Multibaseline InSAR Based on Multiple Transponders

Dai

Xing

et al. 2020

Sensors

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“…Synthetic aperture radar interferometry (InSAR), a further development of the traditional SAR technology, employs two or more SAR antennas to retrieve the height profile or the deformation of the ground surface [4,5,6]. Due to its high measurement accuracy, the InSAR technique has been applied in a wide range of areas, such as forest height estimation [7], electronic warfare [8], ocean measurements [9] and geolocation determination of ground targets [10]. The main InSAR processing procedures include image registration, interferogram generation, phase unwrapping, etc.…”

Section: Introductionmentioning

confidence: 99%

Improved Goldstein Interferogram Filter Based on Local Fringe Frequency Estimation

Feng

et al. 2016

Sensors

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The quality of an interferogram, which is limited by various phase noise, will greatly affect the further processes of InSAR, such as phase unwrapping. Interferometric SAR (InSAR) geophysical measurements’, such as height or displacement, phase filtering is therefore an essential step. In this work, an improved Goldstein interferogram filter is proposed to suppress the phase noise while preserving the fringe edges. First, the proposed adaptive filter step, performed before frequency estimation, is employed to improve the estimation accuracy. Subsequently, to preserve the fringe characteristics, the estimated fringe frequency in each fixed filtering patch is removed from the original noisy phase. Then, the residual phase is smoothed based on the modified Goldstein filter with its parameter alpha dependent on both the coherence map and the residual phase frequency. Finally, the filtered residual phase and the removed fringe frequency are combined to generate the filtered interferogram, with the loss of signal minimized while reducing the noise level. The effectiveness of the proposed method is verified by experimental results based on both simulated and real data.

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A Barrage Noise Jamming Method Based on Double Jammers Against Three Channel SAR GMTI

Chang

Dong

2019

IEEE Access

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Many jamming methods have been proposed against displaced phase center antenna (DPCA) process, which is a type of three-channel synthetic aperture radar (SAR) ground moving target indication. However, two important problems faced by the jammer are why the jamming based on a single jammer is suppressed and how to generate noise in the whole DPCA image while keeping its easy realization. By analyzing a jamming geometric model based on a single jammer, the reason is that the phase of the jamming image in different antennas is only relative to the jamming geometric model, which contains the azimuth position of the jammer and jamming in the SAR image. Then, the jamming area is classified as an enhanced area and a weakened area after DPCA processing. Moreover, the jamming in the weakened area will be suppressed. To overcome this disadvantage, a barrage noise jamming method based on double jammers is proposed. By controlling the azimuth distance between the jammers, the noise can cover the whole DPCA image. Compared with the deception jamming method based on multiple coherent jammers, the phase and amplitude of the jamming signal do not need to be accurately controlled. Finally, the validity of the proposed method is verified by simulation experiments. INDEX TERMS Synthetic aperture radar (SAR), ground moving target indication (GMTI), displaced phase center antenna (DPCA), barraged jamming, double jammers.

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Research of 3-D deceptive interfering method for single-pass spaceborne InSAR

Abstract: Abstract- Index Terms J J X Y Z ′ ′ ′A A R t R t s t t x y s t t t c σ δ 2) Impact of Jammer Position on Limit of Azimuth Resolution:

Cited by 10 publications

References 17 publications

A New Three-Dimension Deceptive Scene Generation against Single-Pass Multibaseline InSAR Based on Multiple Transponders

A New Three-Dimension Deceptive Scene Generation against Single-Pass Multibaseline InSAR Based on Multiple Transponders

Improved Goldstein Interferogram Filter Based on Local Fringe Frequency Estimation

A Barrage Noise Jamming Method Based on Double Jammers Against Three Channel SAR GMTI

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