The varieties of tumor that exists in the world is a cause of great concern for human beings as it creates untold pain and suffering among them. Detection of tumor at early stages is vital for treatment. Many detectio...
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Breast Cancer is a serious health issue that affects women all over the globe, and early detection of it is essential for effective treatment and better patient outcomes. Breast cancer detection techniques like mammog...
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The construction of a wideband fractal antenna with a modified ground structure is discussed in this paper. The basic patch antenna structure is derived from the available equations in the literature. To attain the ne...
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In this paper, a signal processing-based technique for hydraulic fault diagnosis is identified. This technique measures the hydraulic state parameters and extracts the corresponding features. By using algorithms like ...
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Ka band satellite communication system has a great communication capacity, but when used, rainfall attenuation becomes one of the important reasons affecting the communication quality, so it is necessary to study the ...
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There are many cultures and fashion prevailing in the fashion world. Each one has their own outfit. We may have seen some of them in images but may not know what that outfit is. By classifying the outfit worn by the p...
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The distributed-element transmission line model is modified to account for proximity effects in multiconductor cables and frequency dependent dielectric behaviour providing an accurate prediction of channel attenuatio...
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ISBN:
(纸本)9798350318562;9798350318555
The distributed-element transmission line model is modified to account for proximity effects in multiconductor cables and frequency dependent dielectric behaviour providing an accurate prediction of channel attenuation at broadband power line communication frequencies (1-100 MHz). The modified model is verified with scattering parameter measurements and then used as a building block for complex microgrid network modelling. Powerline communication performance tests are conducted using the HomePlug GreenPHY and HomePlug AV. The GreenPHY operates up to 450 m on star feeders and on radial feeders with long branches. However, it cannot connect reliably on radial feeders with short branches due to frequency selective notching. Functionality requires the absence of notches that penetrate below -70 dB within the band (1-30 MHz). The AV operates successfully up to 600 m on star feeders and on radial feeders with long or short branches. Due to the wide availability and low cost of the AV, it is a sensible choice for reliable broadband digital communications on microgrid networks.
With the progress and development of technology, the application of unmanned aerial vehicles (UAVs) has been greatly expanded. UAVs can be seen in agriculture, military, and express delivery industries. Now, UAVs perf...
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ISBN:
(纸本)9798350344738;9798350344721
With the progress and development of technology, the application of unmanned aerial vehicles (UAVs) has been greatly expanded. UAVs can be seen in agriculture, military, and express delivery industries. Now, UAVs performing various search, reconnaissance, and communication tasks in urban environments have become a hot research topic. For communication relay tasks, this paper proposes an iterative search optimization algorithm based on a time matrix to solve the task planning problem of multiple UAVs. Firstly, the rapidly-exploring random tree algorithm is used to construct the distance matrix between tasks. Then, the distance matrix is converted into multiple time matrices based on the speed of the UAVs. Secondly, the iterative search optimization algorithm is used to plan the task sequence of the UAVs. The constructed time matrices participate in the decoding and constraint judgment process. Finally, different scale instances are designed for experiments to compare the performance of the algorithms.
Many automobile antennas are needed, all of which must be installed on the car body due to the fast expansion of new cellular communication systems on various frequency ranges and the advent of satellite navigation sy...
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This look proposes a novel method of moving the modeling abilities of hyper spectral image analysis to agricultural automation. Hyper spectral photograph analysis is a method used to extract information from pics via ...
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