2023 40th National Radio Science Conference (NRSC)最新文献

NRSC'2023 Authors' Index NRSC 2023作者索引

2023 40th National Radio Science Conference (NRSC) Pub Date : 2023-05-30 DOI: 10.1109/nrsc58893.2023.10152936

引用次数: 0

FSO Channel Modelling and Performance Evaluation Over Dust Combined With G-G Atmospheric Turbulence 结合G-G大气湍流的沙尘条件下FSO信道建模与性能评价

2023 40th National Radio Science Conference (NRSC) Pub Date : 2023-05-30 DOI: 10.1109/NRSC58893.2023.10152973

Passant H. Mohamed, M. El-Shimy, H. Shalaby, H. N. Kheirallah

引用次数: 0

Wideband Microwave Phase Shift Measurement Technique 宽带微波相移测量技术

2023 40th National Radio Science Conference (NRSC) Pub Date : 2023-05-30 DOI: 10.1109/NRSC58893.2023.10153011

Dina A. Abd El-Aziz, A. Zekry, R. Ali, A. Attiya

引用次数: 0

Performance Evaluation of X-Ray Nanowire Photoconductor Detector x射线纳米线光电导体探测器的性能评价

2023 40th National Radio Science Conference (NRSC) Pub Date : 2023-05-30 DOI: 10.1109/NRSC58893.2023.10152969

A. Ellakany, A. Zekry, M. Abouelatta, A. Shaker, M. Elbanna

{"title":"Performance Evaluation of X-Ray Nanowire Photoconductor Detector","authors":"A. Ellakany, A. Zekry, M. Abouelatta, A. Shaker, M. Elbanna","doi":"10.1109/NRSC58893.2023.10152969","DOIUrl":"https://doi.org/10.1109/NRSC58893.2023.10152969","url":null,"abstract":"This article describes the use of the SILVACO TCAD device simulator to inspect the electrical performance of a proposed nanowire (NW) X-ray detector. The objective of this work is to obtain a better physical understanding of the behavior of the detector, specifically as a photoconductor $(mathrm{n}^{+}-mathrm{n}-mathrm{n}^{+})$ type, under different conditions such as flux density, biasing voltage, NW diameter, active region length and temperature. When the length is changed from 1.8 $mu mathrm{m}$ to 1.0 $mu mathrm{m}$, the output conductance is changed from 4 $mu text{ohm}^{-1}$ to 14 $mu text{ohm}^{-1}$. The simulation results predict the current produced by incident X-ray beams and the gain, while taking into account the relationship between the diameter and energy gap of InP nanowires. The simulation results show that the overall gain is in the range from 103 to 105 when the flux changes from $2times 10^{9}$ to $6.2times 10^{7}$ Ph/s. The study also models a single semiconductor nanowire and considers the effects of trapping charge and photodoping on the behavior of the nanowire. Additionally, PENELOPE is used to indicate the charge distribution in the InP nanowire material. The simulation results are validated against high-precision measurements, and decent agreement is obtained between the SILVACO TCAD simulation results and experimental results for various beam energies and conditions. This research study provides valuable insights into the functioning of nanowire X-ray detectors.","PeriodicalId":129532,"journal":{"name":"2023 40th National Radio Science Conference (NRSC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121996974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A New Compact Circular Patch Antenna for Wide-band RF Energy Harvesting Systems 用于宽带射频能量收集系统的新型紧凑型圆形贴片天线

2023 40th National Radio Science Conference (NRSC) Pub Date : 2023-05-30 DOI: 10.1109/NRSC58893.2023.10153039

Sherif Hekal, M. Hassan, Gehan Samy, L. R. Gomaa

引用次数: 0

Performance Analysis and Comparative Studies of Carrierless Amplitude and Phase Modulation for Visible Light Communication 可见光通信中无载波振幅和相位调制的性能分析与比较研究

2023 40th National Radio Science Conference (NRSC) Pub Date : 2023-05-30 DOI: 10.1109/NRSC58893.2023.10153033

Waleed M. Ahmed, O. Aly, Elsaved E.M. Khaled

引用次数: 0

A Simplified Technique Of Design For Double Density Wavelets With Enhanced Denoising APPLICATIONS 增强去噪应用的双密度小波简化设计技术

2023 40th National Radio Science Conference (NRSC) Pub Date : 2023-05-30 DOI: 10.1109/NRSC58893.2023.10152887

G. Fahmy, M. Fahmy, O. Fahmy

{"title":"A Simplified Technique Of Design For Double Density Wavelets With Enhanced Denoising APPLICATIONS","authors":"G. Fahmy, M. Fahmy, O. Fahmy","doi":"10.1109/NRSC58893.2023.10152887","DOIUrl":"https://doi.org/10.1109/NRSC58893.2023.10152887","url":null,"abstract":"Denoising Images is a crucial step in noise removal in any data or image communication problem. Recently two image denoising techniques were presented that depends on bivariate analysis. These two techniques were called Double Density Discrete Wavelet Transform (DD DWT) and Double Density Dual Tree Complex Wavelet Transform (DD CWT). They relayed on the decomposition of noisy images with either DD CWT or DD DWT decompositions. This decomposition was after the bivariate based shrinkage technique was applied to exploit the wavelet parent and children correlation for better denoising performance. In this paper we present a novel filter design technique for a DD DWT structure for denoising applications. It composed of 3 dimensional cascaded orthogonal sections. This proposed 3-channel Double Density Wavelet decomposition structure is simple and is fast in terms of convergence. It overcomes most problems for other filter design techniques of being slowly iterative and relays on randomness in parameter optimization. The proposed filter design DD-DWT structure guarantees the Perfect Reconstruction PR and the Alias Cancellation AC conditions and is suitable for VLSI iterative designs. Illustrative examples for the usage of the proposed DD-DWT based design in different image denoising applications are shown in comparison with other denoising structures from recent literature.","PeriodicalId":129532,"journal":{"name":"2023 40th National Radio Science Conference (NRSC)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114789774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Matched Wavelet Pooling for Efficient Light-Weight CNN Network Architectures with Application to Image Classification 基于匹配小波池的高效轻量级CNN网络结构及其在图像分类中的应用

2023 40th National Radio Science Conference (NRSC) Pub Date : 2023-05-30 DOI: 10.1109/NRSC58893.2023.10153067

Said E. EI-Khamy, A. Al-Kabbany, Shimaa El-bana, Hassan El-Raggal

{"title":"Matched Wavelet Pooling for Efficient Light-Weight CNN Network Architectures with Application to Image Classification","authors":"Said E. EI-Khamy, A. Al-Kabbany, Shimaa El-bana, Hassan El-Raggal","doi":"10.1109/NRSC58893.2023.10153067","DOIUrl":"https://doi.org/10.1109/NRSC58893.2023.10153067","url":null,"abstract":"This research addresses the challenge of evaluating the capability of an emerging pooling method, namely, wavelet pooling, to increase the data efficiency in deep neural networks. Specifically, we focus on light-weight network architectures. The volume of training data required to achieve a particular performance level, e.g., recognition accuracy, is what we refer to as data efficiency. Recently, wavelet pooling has been attracting an increasing research attention due to its capacity to overcome the spatial information loss that is inherent in traditional pooling, by capitalizing on localized spectral information in the wavelet domain. We proposed a new wavelet pooling approach recently which has shown significant promise specifically on MobileNets. This approach chooses which wavelet band(s) to include during training by matching the input images (to be recognized) to specific wavelet sub-bands, hence the name-Matched Wavelet Pooling (MWP). How does the performance of MobileNets differ when MWP is adopted compared to the performance of baseline MobileNets and MobileNets with non-matched wavelet pooling? The principal contribution of this research is addressing this research question. We hypothesize that MWP when used on MobileNets requires a smaller volume of training, than baseline MobileNets and non-matched wavelet pooling, to achieve the same recognition accuracy. On two popular benchmarks, namely, CINIC-10 and STL-10 datasets, we report consistent data savings (achieved by MWP) that approaches 30% compared to the baseline MobileNet model and the non-matched wavelet pooling while achieving higher recognition accuracy.","PeriodicalId":129532,"journal":{"name":"2023 40th National Radio Science Conference (NRSC)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129435588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Meta-surface Structure for Polarization Control Based on Malus Law 基于Malus律的偏振控制元曲面结构

2023 40th National Radio Science Conference (NRSC) Pub Date : 2023-05-30 DOI: 10.1109/NRSC58893.2023.10153059

Amr H. ELKady, M. Hagag, O. Helal, M. Abdalla

{"title":"Meta-surface Structure for Polarization Control Based on Malus Law","authors":"Amr H. ELKady, M. Hagag, O. Helal, M. Abdalla","doi":"10.1109/NRSC58893.2023.10153059","DOIUrl":"https://doi.org/10.1109/NRSC58893.2023.10153059","url":null,"abstract":"Metamaterials and metsurfaces structures in subwavelength scale which is integrated on the different building blocks of optical structures reshapes the design of photonic circuits. These circuits leads to electromagnetic waves control. Huge growth of metasurface nano-fabricated structures helps in numerous optical applications. One of these applications is optical polarizers. Optical polarization has great impact on diffraction, refraction in addition to flat optics and different optical industries in our daily life. Controlling light intensity and phase helps in many applications in different fields. In this article simple 300*300 nm nano Malus-metasurface structure is presented and simulated to show a (45°) phase shift. Detailed Study for transmission and reflection coefficients are introduced for the nano-gold metastructure. Another study for phase dependence of wavelength is presented. This structure enables controlling light phase and intensity according to Malus law. The structure can provide different patterns as grey near field pattern and holographic far field pattern. This implies connection between Pancharatnam-Berry phase shift and continual intensity modification. This design allows to merge between nanooptics, phase manipulation and the classical malus-law. The presented structure is more compatible with many applications due to its dependence on gold rather than any used material. The proposed polarizer can be used in many applications specially in encryption, multiplexing, dual channel display virtual reality, communication, programming, optical fields, biomedical sensing, artificial intelligence and different applications..","PeriodicalId":129532,"journal":{"name":"2023 40th National Radio Science Conference (NRSC)","volume":"132 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128516567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Face Image Synthesis From Speech Using Conditional Generative A Adversarial Network 基于条件生成对抗网络的语音人脸图像合成

2023 40th National Radio Science Conference (NRSC) Pub Date : 2023-05-30 DOI: 10.1109/NRSC58893.2023.10152900

Shaimaa Tarek Abdeen, M. Fakhr, N. Ghali, M. M. Fouad

引用次数: 0