Simulating multi‐fractal sea clutter and surface based on the random multiplicative model

Xi, Caiping; Xiong, Gang; Yang, Yonghong; Chen, Si

doi:10.1049/joe.2019.0505

Cited by 1 publication

(1 citation statement)

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“…In reference [13], the first-order clutter spectrum of High-Frequency Surface Wave Radar (HFSWR) with the influence of the marine environment is studied. In reference [14], a three-partitioned random multiplicative model is adopted to simulate multifractal sea clutter, and the similar multiplication factor of Ice Multiparameter Imaging X-Band (IPIX) radar sea clutter is adopted to construct the multifractal sequence whose spectrum is calculated by using the Qth-order moment structure partition function (QMSPF). In reference [15], the two-dimensional direct numerical simulation method is used to study the statistical characteristics of sea clutter at 85°i ncident angle, and the influence of wind speed, radar resolution on it is discussed, but there is no further study on the statistical characteristics of sea clutter at a low incident angle.…”

Section: Introductionmentioning

confidence: 99%

Modeling and electromagnetic analysis of typical environmental clutter based on SMCG

2022

Int. J. Microw. Wireless Technol.

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In the research of the natural ecological environment, environmental scattering is an important research content whose results are widely used. In order to fully study the relevant characteristics of the natural grassland environment, this paper established a grassland broadband clutter model, summarized the dominant and recessive laws of the grassland environment broadband clutter, and provided a new perspective for related environmental monitoring which would be helpful to solve the problem of target detection in complex environments. The main work of this paper is as follows: The dielectric constant model of the grass was established, and the curve of the dielectric constant with frequency was obtained. The Monte Carlo method combined with the Gaussian spectrum function was used to generate a two-dimensional Gaussian surface to simulate the actual grass surface. A broadband clutter model was established, and, considering the calculation efficiency and accuracy, the Sparse Matrix/Canonical Grid (SMCG) was used to calculate the surface scattering coefficient. Then, the environmental clutter amplitude with different radar bandwidth (10, 40, 80 MHz), surface roughness (h = 0.1 m, h = 0.2 m, h = 0.4 m) and grazing angle (30°, 60°) were calculated and the probability density function (PDF) was obtained. The results show that the higher the radar resolution, the larger the incident angle, and the rougher the interface, all of which will cause the tail of the PDF to become longer which will not only reduce the detection probability of the radar, but also the tracking accuracy. The research results can be used for civilian and military field.

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Section: Introductionmentioning

confidence: 99%

Modeling and electromagnetic analysis of typical environmental clutter based on SMCG

2022

Int. J. Microw. Wireless Technol.

View full text Add to dashboard Cite

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Simulating multi‐fractal sea clutter and surface based on the random multiplicative model

Cited by 1 publication

References 12 publications

Modeling and electromagnetic analysis of typical environmental clutter based on SMCG

Modeling and electromagnetic analysis of typical environmental clutter based on SMCG

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