Multi-frequency data fusion via joint weighted deconvolution for resolution enhancement

Shen, Huijuan; Tian, Gang; Tao, Chunhui; Wang, Hanchuang; Fang, Jinwei

doi:10.1016/j.jappgeo.2022.104702

Cited by 5 publications

(4 citation statements)

References 17 publications

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“…Big data teaching refers to the use of big data in teaching by schools and teachers to build an informationized and personalized teaching environment and provide teachers and students with a resource pool to achieve common progress between teachers and students [16][17][18][19][20]. In big data teaching, teachers can use relevant software to build the teaching environment and make full use of the big data function.…”

Section: Introductionmentioning

confidence: 99%

[Retracted] Construction and Application of College English Blended Teaching System Based on Multidata Fusion

Pan

2022

Discrete Dynamics in Nature and Society

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With the rapid development of educational information technology, “online and offline” hybrid teaching has become the main trend of foreign language teaching reform in colleges and universities. The blended teaching mode integrates the traditional teaching mode with modern educational technology and reconstructs the traditional college English teaching mode in the aspects of teaching object, teaching content, teaching method, teaching environment, and teaching evaluation. Based on the multisource data such as students’ learning situation, learning duration, and academic performance, this paper builds a student English learning analysis system that realizes the integration of multisource data, completes the unified processing and analysis of multisource data, and then displays it through the interface. The system helps English teachers to guide students in different degrees according to the students’ English learning situation and academic performance, so that English teachers have a clearer and more comprehensive understanding of students’ learning and living conditions and timely guide students with incorrect learning attitudes, so as to avoid students’ detours.

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Section: Introductionmentioning

confidence: 99%

[Retracted] Construction and Application of College English Blended Teaching System Based on Multidata Fusion

Pan

2022

Discrete Dynamics in Nature and Society

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“…As the source of the detection system, the transmitting system direct effects the detection effect [25]. Conventional transmitter sources use multiple independent transmitter modules operating simultaneously to increase the primary field strength in space, with the transmitter structure shown in figure 2 [26].…”

Section: Principle Of Shallow Surface Detectionmentioning

confidence: 99%

Dual-frequency transmitter configuration for shallow surface electromagnetic detection

Liu,

Yu,

Zhang

2023

Meas. Sci. Technol.

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In shallow surface electromagnetic detection, the square wave scheme is generally used in conventional transmission systems. Based on frequency-domain electromagnetic sounding theory, high-frequency measurement helps to improve vertical resolution. However, long grounded cable inductance produces severe reactive power suppression at high frequency transmission frequencies, which will reduce detection. To further improve detection accuracy and efficiency, a dual-frequency transmitter configuration is proposed in this article for shallow surface detection. The transmitter simultaneously powers two LC series resonant circuits for the detection of shallow and deep area. Dual-frequency control strategy is adopted, with both bridge arms being provided with constant switching frequency operation. According to the equivalent model of the transmission system, the control of the load branches is independent of each other. The LC series resonant circuit guarantees a wide passband to match long cable inductance that cannot be accurately estimated in advance. Simulations and experimental tests were carried out using this transmitter configuration and control technique. The simulation and experimental results are in general agreement, verifying the feasibility and effectiveness of the proposed dual-band transmitter configuration.

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“…Zhao et al [9] introduced genetic algorithms to automatically obtain the optimal weight matrix and applied it to archaeological exploration. Some researchers have used the optimal spectral whitening (OSW) [10] technique based on wavelet analysis (e.g., Berlage wavelets [11] as well as Ormsby wavelets [12]) as a weighting factor for radar map synthesis techniques. By utilizing deconvolution, they have successfully processed composite radar data, resulting in improved GPR spectral bandwidth and enhanced data resolution.…”

Section: Introductionmentioning

confidence: 99%

GPR multi-frequency data fusion algorithm based on regional energy characteristics

Lu,

Liu

2024

Workshop on Electronics Communication Engineering (WECE 2023)

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Ground Penetrating Radar (GPR) is a widely used technology for non-destructive near-ground detection. It is often difficult to balance detection depth and resolution when using a single-frequency antenna. To solve this problem, a novel multi-frequency data fusion algorithm is proposed. The two-dimensional Gaussian weighted window is utilized as a sliding window to analyze regional energy characteristics. By matching multi-frequency data with these properties, the benefits of high resolution for high-frequency data and high amplitude for low-frequency data can be leveraged. The matching threshold is determined using a genetic algorithm. Fusion is then performed based on the matching results obtained. The effectiveness of the proposed algorithm was evaluated through experimental comparisons with other algorithms at frequencies of 900MHz and 1600MHz. The experiment results indicate that the proposed algorithm can enhance the resolution and information content, from which a superior radar profile is acquired.

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Multi-frequency data fusion via joint weighted deconvolution for resolution enhancement

Cited by 5 publications

References 17 publications

[Retracted] Construction and Application of College English Blended Teaching System Based on Multidata Fusion

[Retracted] Construction and Application of College English Blended Teaching System Based on Multidata Fusion

Dual-frequency transmitter configuration for shallow surface electromagnetic detection

GPR multi-frequency data fusion algorithm based on regional energy characteristics

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