Crossed-loop (CL)/monopole antenna has been widely used in high-frequency ground-wave radar for ocean surface remote sensing owing to its compact size. The multiple signal classification (MUSIC) algorithm is commonly adapted achieve a favorable angular resolution this broad beam antenna. However, the direction of arrival (DOA) estimation always troubled by frequently occurring distortion pattern. Previous studies are mainly focused on calibration using actual pattern or other assistant...

A synthetic aperture radar (SAR) automatic target recognition method is proposed based on the matching of outlines. The outline describes physical sizes and shape thus discriminative for SAR recognition. original segmented into several independent parts. distance between each part its counterpart in corresponding template measured by least-trimmed square Hausdorff distance. Afterwards, results individual parts are combined to form a similarity measure, which comprehensively considers...

In this paper, the authors obtain some characterizations of BMO in terms commutators multilinear fractional integrals and Caldrón-Zygmund singular on variable Lebesgue spaces.The corresponding weighted estimates for vector-valued with vector symbol spaces are also considered.

The unbalanced assignment problem (UAP) is to optimally resolve the of assigning n jobs m individuals (m < n), such that minimum cost or maximum profit obtained. It a vitally important Non-deterministic Polynomial (NP) complete in operation management and applied mathematics, having numerous real life applications. In this paper, we present new parallel DNA algorithm for solving using molecular operations. We reasonably design flexible-length strands representing different individuals, take...

This paper presents a new fully-digital high-frequency (HF) backscatter radar system for oceanographical remote sensing. The receiver is designed that employs directly radio freqency (RF) sampling, digital down-conversion, and pulse compression techniques. difference between this ordinary analogue illustrated. Results of closed-loop test field experiment conducted on the coast Eastern China Sea are given to prove good performance system.

Urban landscape 3D visualization system is the basic support of Digital City, China or Earth, its research also key issue in field digital city. Therefore, this article selects urban three- dimensional as object In-depth analysis R & D requirements system, paper examines detail structure, technology, and targeted improved optimization data management, event handling, three-dimensional engine, effectiveness these methods proved practice. On other hand, content only involved based part parts...

Fuzzy logic modeling using internal and membership functions is a promising technique for the control of semiconductor manufacturing packaging processes. To simplify its implementation procedure, fuzzy model needs to be established with minimum user interference. An algorithm two major steps has been proposed demonstrated efficient establishment The first step develops intermediate models different numbers assigned each input variable. number one simplest model, increased by according...

A target recognition method of synthetic aperture radar (SAR) images is proposed via matching attributed scattering centers (ASCs) to binary regions. The ASCs extracted from the test image are predicted as In detail, each ASC first transformed domain based on model. Afterwards, resulting converted a region segmented by global threshold. All regions individual sample mapped corresponding templates. Then, matched evaluated three scores which combined similarity measure score-level fusion....

Transgenic plants have been regenerated from small cell groups of rice using a simpler, faster, and more efficient method than used previously (e.g., protoplast transformation regeneration methods). Small 50-100 cells were prepared established suspension cultures lines. Transformation with intact walls was carried out plasmid harboring the beta-glucuronidase gene mediated by polyethylene glycol. Assay activity indicated that frequency about 7%. beta-Glucuronidase detected in roots leaves...

Deep learning (DL) algorithms, especially the convolutional neural network (CNN), have been proven as a newly developed tool in machinery intelligent diagnosis. However, current CNN-based fault diagnosis studies usually consider features or images extracted from single domain model input. This information may not reflect patterns comprehensively, leading to low modeling accuracy and inaccurate diagnostic results. To overcome this limitation, paper proposes new approach using image...

This paper deeply study in real-time simulation technology of realistic snow scenes, including rendering techniques (real-time falling snowflakes), accumulation model, and wind field (snow interaction model). The proposed innovations this are:A particles cluster systems: which increase both the efficiency variety snowflakes; Wind based on Boltztnann equation D3Q15 model: model simplify calculation offer a very true view, algorithm can run real time as well. These three solutions above...