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[Other] dealing with Acoustic noise DL : 0: 详细介绍语音信号噪声的处理
Date : 2011-04-03 Size : 1.1mb User : xiangylu
[Other] Development and Analysis of Three layered Conductor for improved se final DL : 0: Concepts Of EMI and EMC Noise is any electrical signal present in a circuit other than the desired signal. This definition excludes the distortion products produced in a circuit due to nonlinearities. Although these distortion products may be undesirable, they are not considered noise unless they are coupled into another part of the circuit. It follows that a desired signal in one part of a circuit can be considered to be noise when coupled to some other part of the circuit. An electromagnetic disturbance is any electromagnetic phenomenon which may degrade the performance of a device, or an equipment, or a system. The electromagnetic disturbance can be in the nature of an electromagnetic noise, or an unwanted signal, or a change in the propagation medium itself.
Date : 2021-09-26 Size : 3.02mb User : suresh_ece@raghuinstech.com
[Other] A memory and area‑efficient distributed arithmetic based modular VLSI architecture of 1D/2D reconfigurable 9/7 and 5/3 D DL : 0: In this article, we have proposed the internal architecture of a dedicated hardware for 1D/2D convolution-based 9/7 and 5/3 DWT filters, exploiting bit-parallel ‘distributed arithmetic’ (DA) to reduce the computation time of our proposed DWT design while retaining the area at a comparable level to other recent existing designs. Despite using memory extensive bitparallel DA, we have successfully achieved 90% reduction in the memory size than that of the other notable architectures. Through our proposed architecture, both the 9/7 and 5/3 DWT filters can be realized with a selection input, mode. With the introduction of DA, we have incorporated pipelining and parallelism into our proposed convolution-based 1D/2D DWT architectures. We have reduced the area by 38.3% and memory requirement by 90% than that of the latest remarkable designs. The critical-path delay of our design is almost 50% than that of the other latest designs. We have successfully applied our prototype 2D design for real-time image decomposition. The quality of the architecture in case of real-time image decomposition is measured by ‘peak signal-to-noise ratio’ and ‘computation time’, where our proposed design outperforms other similar kind of software- and hardware-based implementations.
Date : 2021-10-05 Size : 3.28mb User : nalevihtkas