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  1. Image Deformation Using Moving Least Squares

  2. MLS算法论文,We provide an image deformation method based on Moving LeastSquares using various classes of linear functions including affine,similarity and rigid transformations. These deformationsare real-istic and give the user the impression of manipula
  3. 所属分类:图像处理

    • 发布日期:2020-05-25
    • 文件大小:5242880
    • 提供者:qinzihangxj
  1. a closed form solution of the BL model with conditional value at risk.pdf

  2. 投资组合经理在模型中设置了有噪声的,有偏的的且非直接的关于$\theta$的信息,这些信息的间接且有偏的是因为这些观点是基于组合收益率的,相比较资产收益率而言,这是一种线性变换;并且由于未来具有不确定性,信息是含有噪音项$\varepsilon^{(v)}$的,一种合理的做法是将投资经理的观点看做是对未来的预测.
  3. 所属分类:金融

    • 发布日期:2020-09-05
    • 文件大小:364544
    • 提供者:qq_18822147
  1. On the impact of Phase shifting IRS NOMA

  2. Address Author Zhiguo Ding, Hi H. Vincent Poor, Princeton Phrases Abstract This letter aims to study the impact of two phase shifting designs on the IRS assisted NOMA. co-phasing random -phasing By using the CLT (central limit theorem), the author de
  3. 所属分类:其它

    • 发布日期:2021-01-06
    • 文件大小:144384
    • 提供者:weixin_38713586
  1. mpr:“复杂封闭式隐式曲面的大规模并行渲染”的参考实现(SIGGRAPH 2020)-源码

  2. mpr 这是的参考实现,该技术论文将在(虚拟)呈现。 (预印本,4.6 MB) 引文 article {keeter2020, author = {Keeter, Matthew J.}, title = {Massively Parallel Rendering of Complex Closed-Form Implicit Surfaces}, journal = {{ACM} Transactions on Graphics (Proceedings of
  3. 所属分类:其它

    • 发布日期:2021-03-21
    • 文件大小:1048576
    • 提供者:weixin_42137723
  1. Propagation of Helmholtz-Gauss beams in weak turbulent atmosphere

  2. Based on the Rytov approximation of light propagation in weak turbulent atmosphere, the closed-form expressions of field and average irradiance of each one of the four fundamental families of Helmholtz-Gauss (HzG) beams: cosine-Gauss beams, stationar
  3. 所属分类:其它

    • 发布日期:2021-02-26
    • 文件大小:130048
    • 提供者:weixin_38640473
  1. Denoising 3-D magnitude magnetic resonance images based on weighted nuclear norm minimization

  2. A new denoising algorithm based on low-rank matrix approximation (LRMA) with regularization of weighted nuclear norm minimization (WNNM) is proposed to remove Rician noise of magnetic resonance (MR) images. This technique simply groups similar non-lo
  3. 所属分类:其它

    • 发布日期:2021-02-22
    • 文件大小:3145728
    • 提供者:weixin_38707356
  1. Performance characterization of two-way multi-hop underwater networks in turbulent channels [Invited]

  2. This Letter investigates the performance of the two-way multi-hop system for underwater optical wireless communications. With the decode-and-forward (DF) relaying, the two-way multi-hop system is modeled, where the effects of absorption, scattering,
  3. 所属分类:其它

    • 发布日期:2021-02-22
    • 文件大小:1048576
    • 提供者:weixin_38610815
  1. Traffic-knowledge-based relay selection for asymmetric two-way AF relaying networks

  2. A novel relay selection criterion, in which the traffic-knowledge is utilized, is proposed for asymmetric two-way amplify-and-forward (AF) relaying networks. The system outage probability, diversity gain and coding gain are then investigated, and clo
  3. 所属分类:其它

    • 发布日期:2021-02-21
    • 文件大小:230400
    • 提供者:weixin_38618784
  1. A micromachined low-frequency piezoelectric harvester for vibration and wind energy scavenging

  2. To efficiently scavenge ambient vibration energy and wind energy at the same time, a low-frequency piezoelectric harvester was designed, fabricated and tested. A lumped-parameter model of the cantilevered piezoelectric energy harvester with a proof m
  3. 所属分类:其它

    • 发布日期:2021-02-20
    • 文件大小:1048576
    • 提供者:weixin_38706055
  1. MIMO multichannel beamforming: SER and outage using new eigenvalue distributions of complex noncentral Wishart matrices

  2. This paper analyzes MIMO systems with multi-channel beamforming in Ricean fading. Our results apply to a wide class of multichannel systems which transmit on the eigenmodes of the MIMO channel. We first present new closed-form expressions for the mar
  3. 所属分类:其它

    • 发布日期:2021-02-20
    • 文件大小:711680
    • 提供者:weixin_38685538
  1. Adaptive filtering under maximum mutual information criterion

  2. The maximum mutual information (MaxMI) criterion is used as the adaptation cost for the adaptive filtering. This criterion is robust to measure distortions, and has strong connection with traditional mean-square error (MSE) criterion. Under Gaussian
  3. 所属分类:其它

    • 发布日期:2021-02-20
    • 文件大小:521216
    • 提供者:weixin_38653878
  1. Transmit Beamforming in Rayleigh Product MIMO Channels: Capacity and Performance Analysis

  2. This paper presents an analytical performance investigation of transmit beamforming (BF) systems in Rayleigh product multiple-input multiple-output (MIMO) channels. We first derive new closed-form expressions for the cumulative distribution function,
  3. 所属分类:其它

    • 发布日期:2021-02-20
    • 文件大小:1048576
    • 提供者:weixin_38729685
  1. Total Least Squares Method for Robust Source Localization in Sensor Networks Using TDOA Measurements

  2. The TDOA-based source localization problem in sensor networks is considered with sensor node location uncertainty. A total least squares (TLSs) algorithm is developed by a linear closed-form solution for this problem, and the uncertainty of the senso
  3. 所属分类:其它

    • 发布日期:2021-02-10
    • 文件大小:788480
    • 提供者:weixin_38680393
  1. Analysis of average capacity for free-space optical links with pointing errors over gamma-gamma turbulence channels

  2. A novel closed-form expression for average capacity is derived for free-space optical (FSO) links over Gamma-Gamma turbulence channels by considering the effect of misalignment (pointing errors). The simulation results show that the average capacity
  3. 所属分类:其它

    • 发布日期:2021-02-09
    • 文件大小:340992
    • 提供者:weixin_38689223
  1. Virtual source for rotational symmetric Lorentz-Gaussian beam

  2. The virtual source for generation of rotational symmetric Lorentz-Gaussian (RLG) wave whose propagating dynamics present the rotational symmetry is identified. Closed-form expressions, including integral and differential representations, are derived
  3. 所属分类:其它

    • 发布日期:2021-02-09
    • 文件大小:1048576
    • 提供者:weixin_38725015
  1. Upper and Lower Bounds of Two-Way Opportunistic Amplify-and-Forward Relaying Channels

  2. With the high signal-to-noise ratio (SNR) approximation, the statistical descr iptions of the two-way opportunistic relaying amplify-and-forward channels (TWOR-AF) are investigated through the appropriate mathematic proof and simulations. Firstly, we
  3. 所属分类:其它

    • 发布日期:2021-02-09
    • 文件大小:1048576
    • 提供者:weixin_38609002
  1. Multihop free-space optical communications over turbulence channels with pointing errors and heterodyne detection

  2. This paper proposes and analyzes the performance of the multihop free-space optical (FSO) communication links usinga heterodyne differential phase-shift keying modulation scheme operating over a turbulence induced fading channel. A novel statistical
  3. 所属分类:其它

    • 发布日期:2021-02-09
    • 文件大小:489472
    • 提供者:weixin_38724363
  1. A novel second subproblem for two arbitrary axes of robots

  2. The Paden–kahan subproblem is a simple and flexible method to solve the closed-form inverse resolution but.limited by the geometrical structure of robots, which is very difficult to be kept because of processing and.installation. Therefore, a closed-
  3. 所属分类:其它

    • 发布日期:2021-02-07
    • 文件大小:440320
    • 提供者:weixin_38670529
  1. Performance of free-space optical communication systems using circle polarization shift keying with spatial diversity re

  2. A closed-form bit-error rate (BER) expression is derived for free-space optical (FSO) communication systems with circle polarization shift keying and spatial diversity receivers in the gamma-gamma (GG) distribution fading channel. This model can pred
  3. 所属分类:其它

    • 发布日期:2021-02-05
    • 文件大小:232448
    • 提供者:weixin_38685538
  1. Packet error rate analysis of DPIM for free-space optical links with turbulence and pointing errors

  2. In this Letter, we investigate the packet error rate (PER) performance of digital pulse interval modulation (DPIM) for free-space optical (FSO) links under the combined effect of turbulence and pointing errors. The theoretical model is developed by c
  3. 所属分类:其它

    • 发布日期:2021-02-05
    • 文件大小:294912
    • 提供者:weixin_38741540
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