The Dual Active Bridge (DAB) converter is one of the suitable isolated structures for high-power applications. With the increasing demand for energy, consumers such as electric vehicles and similar devices require sig...
详细信息
ISBN:
(数字)9798331525132
ISBN:
(纸本)9798331525149
The Dual Active Bridge (DAB) converter is one of the suitable isolated structures for high-power applications. With the increasing demand for energy, consumers such as electric vehicles and similar devices require significant electrical power. Due to the limitations of power handling in switching converter components, such as the maximum current and voltage ratings of semiconductors, it has become necessary to connect multiple converters in a modular configuration to achieve the required total power. However, this approach can result in power imbalance among the modules due to non-idealities and mismatched component characteristics in each module. In this paper, by modifying the inductor of the DAB converter, power balance between the modules is achieved. Finally, two DAB converter modules providing a total power of 10 kW are simulated and verified in MATLAB software.
In recent years, the electricity crisis has intensified due to the more electric applications, electrical vehicles, and automotive industries that have been developed. Due to this prediction, power generation, utilisa...
详细信息
This article discussed the automatic frequency fluctuation control in an interlinked power network. Power quality issue arises at the time uncertainty in the loading. The power network is framed by two unequal power s...
详细信息
We propose a novel deep learning based method to design a coded waveform for integrated sensing and communication (ISAC) system based on orthogonal frequency-division multiplexing (OFDM). Our ultimate goal is to desig...
详细信息
ISBN:
(数字)9798350368369
ISBN:
(纸本)9798350368376
We propose a novel deep learning based method to design a coded waveform for integrated sensing and communication (ISAC) system based on orthogonal frequency-division multiplexing (OFDM). Our ultimate goal is to design a coded waveform, which is capable of providing satisfactory sensing performance of the target while maintaining high communication quality measured in terms of the bit error rate (BER). The proposed LISAC provides an improved waveform design with the assistance of deep neural networks for the encoding and decoding of the information bits. In particular, the transmitter, parameterized by a recurrent neural network (RNN), encodes the input bit sequence into the transmitted waveform for both sensing and communications. The receiver employs a RNN-based decoder to decode the information bits while the transmitter senses the target via maximum likelihood detection. We optimize the system considering both the communication and sensing performance. Simulation results show that the proposed LISAC waveform achieves a better tradeoff curve compared to existing alternatives.
The traditional recognition methods of wheel hubs are mainly based on extracted feature matching. In practical production, their accuracy, robustness and processing speed are usually greatly affected. To overcome thes...
详细信息
In this work, we propose a small-size and low-cost phase shifter based on defective microstrip structure (DMS) technique, with a modified reconfigurable unit cell (MRDMS) for WLAN applications at 5.2 GHz. The phase sh...
详细信息
AI-powered records science is revolutionizing the way facts are analyzed and understood. It can significantly improve the exceptional of information evaluation and boost its speed. AI-powered facts technological know-...
详细信息
The primary driving force behind the development of fifth-generation (5G) applications is the necessity of Concurrent Multipath Transfer (CMT). Nevertheless, CMT systems that rely on Transport Control Protocol/Interne...
详细信息
By the end of 2021, the United States had installed a 92.5 gigawatts of solar systems. Simultaneously, the rise of inverter-based resources (IBRs) has resulted in a noticeable decline in power grid inertia, which pose...
详细信息
Unmanned Aerial Vehicles (UAVs) are advertised as great tool that benefits society and humanity. However, UAVs also pose significant security threats ranging from privacy invasions, to interfering with commercial airc...
详细信息
ISBN:
(数字)9798350374551
ISBN:
(纸本)9798350374568
Unmanned Aerial Vehicles (UAVs) are advertised as great tool that benefits society and humanity. However, UAVs also pose significant security threats ranging from privacy invasions, to interfering with commercial aircraft landing and takeoff, to accidently crashing into vehicles or people, to military or terrorist attacks. Consequently, there is a pressing need to detect and identify UAVs to mitigate such potential risks. While image-based methods are crucial for UAV detection, radio frequency (RF) emissions offer additional valuable insights. Analyzing RF signals, such as those used in UAV-ground station communications, can provide information about UAV types based on distinct frequency usage or communication patterns. This work introduces a deep-learning-based approach for recognizing and identifying UAVs using their RF emissions. Captured RF signals are transformed into spectrograms, which are subsequently analyzed using deep neural networks. Existing methods achieve low identification accuracy, for instance the ResNet-50V2 model achieves an accuracy of 85.39% even in controlled, laboratory, noise-free conditions. Moreover, in outdoor environments at distances of 50m and 100m, the accuracy drops to 68.90% and 56.88%, respectively. To improve classification accuracy in outdoors, a CNN model was developed, yielding an accuracy of 78.12%. Leveraging the ResNet 50 V2 architecture, remarkable accuracy of 95.08% was attained in binary classification tasks involving a dataset comprising 195 mixed UAV images and 290 non-mix UAV images.
暂无评论