Analysis of some two dimensional functions using two dimensional Fourier transforms: Image reconstruction and physical significance

Jagatheswari, G. K.; Honnavar, Gajanan V; Murugesan, Regan

doi:10.1109/iccct2.2017.7972295

Cited by 3 publications

(3 citation statements)

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“…To verify the applicability of the proposed synchronous transmission method for array signals, the throughput and accuracy of the synchronous transmission were analyzed through contrastive experiments [30]. The proposed method was compared with the carrier-based synchronous transmission method for wireless signals (Method 1) [1], and the synchronous transmission method for energy and signals with a parallel inductive structure of fundamental energy channel and harmonic energy channel (Method 2) [2]. Figure 3, the throughputs of Method 1 and Method 2 both decreased first and then increased, while the throughput of our method remained above 150MPa and that of the two contrastive method.…”

Section: Experiments and Results Analysismentioning

confidence: 99%

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A Synchronous Transmission Method for Array Signals of Sensor Network under Resonance Technology

Wang¹

2020

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The traditional transmission methods for array signals face problems like signal loss and inaccurate output, due to the inadequacy of signal processing. To solve the problems, this paper presents a synchronous transmission method for array signals of sensor network under resonance technology. For better transmission efficiency, the array signals were collected through three-node collaboration in the sensor network, and denoised through wavelet transform. After that, the abnormal nodes in the sensor network were detected to improve transmission accuracy. On this basis, vibration frequency of the array signals was adjusted by the degree of harmonic vibration. Finally, the synchronous and accurate transmission of array signals was realized through normalization and adaptive solution of echo signals. Experimental results show that the proposed method achieved greater information throughput and higher transmission accuracy than traditional methods within the same time. Therefore, this research provides a highly applicable synchronous transmission method for array signals.

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Section: Experiments and Results Analysismentioning

confidence: 99%

“…Jagatheswari et al [1] proposed a carrier-based synchronous transmission method for wireless signals. First, system modeling was performed by the coupling theory to analyze the features and efficiency of signal synchronous transmission.…”

Section: Introductionmentioning

confidence: 99%

A Synchronous Transmission Method for Array Signals of Sensor Network under Resonance Technology

Wang¹

2020

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“…Recently, X. Zhou et al have applied deep belief network (DBN) to learn striation-based sonar fringe images and proposed shared latent sparse feature (SLS) to represent the interference fringe [7]. The two-dimensional Fourier transform decomposes an image into the sum of several complex plane waves [8][9][10]. When the intensity of complex plane wave component forming the fringe pattern to be measured is small, the fringe pattern will be submerged in the noise.…”

Section: Introductionmentioning

confidence: 99%

Two-Dimensional Lock-in Amplifier Algorithm in Spatial Domain

Zhang

2023

Preprint

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An algorithm based on a two-dimensional lock-in amplifier method has been proposed for extracting complex plane components in images. Traditional one-dimensional time-frequency lock-in amplifier estimates the amplitude and phase of a periodic signal at a frequency determined by a reference signal that may be submerged by noise. In the field of digital image processing, it is necessary to analyze the information in the spatial domain. In this paper, a mathematical model has been established to describe the complex plane component in the image, and a two-dimensional lock-in amplifier algorithm has been developed. Compared with traditional lock-in amplifier algorithms, the proposed algorithm can be used to process signals with higher dimensions. Simulation and experimental results show that the proposed algorithm can effectively extract the complex plane components polluted by noise at given frequencies. This two-dimensional lock-in amplifier algorithm can be applied to the extraction and reconstruction of fringe patterns in images submerged by noise. The limitation of the proposed algorithm has been discussed.

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Physically Meaningful Linear Electric Machine Frequency Analysis and Modeling Technique without a Constant Speed Assumption

Gaspar

2020

2020 IEEE Energy Conversion Congress and Exposition (ECCE)

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Analysis of some two dimensional functions using two dimensional Fourier transforms: Image reconstruction and physical significance

Cited by 3 publications

References 0 publications

A Synchronous Transmission Method for Array Signals of Sensor Network under Resonance Technology

A Synchronous Transmission Method for Array Signals of Sensor Network under Resonance Technology

Two-Dimensional Lock-in Amplifier Algorithm in Spatial Domain

Physically Meaningful Linear Electric Machine Frequency Analysis and Modeling Technique without a Constant Speed Assumption

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