نتایج جستجو برای: hierarchical modulation
تعداد نتایج: 241433 فیلتر نتایج به سال:
In this paper, a 7-level Diode Clamped Multilevel Inverter (DCMLI) is simulated with three different carrier PWM techniques. Here, Carrier based Sinusoidal Pulse Width Modulation (SPWM), Third Harmonic Injected Pulse Width Modulation (THIPWM) and Modified Carrier-Based Space Vector Pulse Width Modulation (SVPWM) are used as modulation strategies. These modulation strategies include Phase Dispos...
Modulation classification has been widely studied in recent years. However, few studies focus on the performance degradation multipath fading channels, whose impact is non-negligible. In this paper, a convolutional neural network (CNN) employing cyclostationary (CS) feature, which maintain essential characteristics proposed for robust modulation classification. Our method can be implemented two...
abstract purpose of this paper: the objectives of this paper are two folds: (1) utilizing hierarchical fuzzy technique for order preference by similarity to ideal solution (topsis) approach to evaluate the most suitable rfid-based systems decision, and (2) to highlight key risks and benefits of radio frequency identification technology in healthcare industry. design/methodology/approach: resear...
Abstract—Recently developed cooperative diversity scheme enables a terminal to get transmit diversity through the support of other terminals. However, most of the introduced cooperative schemes have a common fault of decreased transmission rate because the destination should receive the decodable compositions of symbols from the source and the relay. In order to achieve high data rate, we propo...
Tetragonal La2(MoO4)3 with various novel and complex 3D hierarchical architectures self-assembled from different building blocks were successfully synthesized by a hydrothermal method in EDTA-mediated processes. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and high resolution transmission electron microscopy (HRTEM) were employed to charact...
Hierarchical effects of task-engagement on amplitude modulation encoding in auditory cortex 1 2 3 Mamiko Niwa, Kevin N. O’Connor, Elizabeth Engall, Jeffrey S. Johnson, M.L. Sutter 4 UC Davis Center for Neuroscience and Dept of Neurobiology, Physiology and Behavior, Davis, 5 CA 95618 6 7 8 Running title: Task-engagement and neural discrimination in A1 and ML 9 10 11 Corresponding Author: Mitchel...
field programmable gate array ها آرایه های گیتی قابل برنامه ریزی می باشند که به طراح این تواناییرا می دهد تا طراحی دیجیتال خود را آنچنان که می خواهد و با هر حجم و پیچیدگی لازم، طراحی کند. یکی از زبانهای توصیف سخت افزاری این ic ها vhdl می باشد.بدین ترتیب fpga امکانات جدید را در پردازش اطلاعات بوجود آورد، یک fpga می تواند جایگزین چندین مدار سخت افزاری عادی شود.پس می توان fpga را در موارد مختلف بک...
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