Báo cáo hóa học: " Eigenspace-Based Motion Compensation for ISAR Target Imaging" doc

... Processing Volume 2006, Article ID 90716, Pages 1–9 DOI 10.1155/ASP/2006/90716 Eigenspace-Based Motion Compensation for ISAR Target Imaging D. Yau, P. E. Berry, and B. Haywood Electronic Warfare and ... Figure 1). The target motion with respect to the radar line of sight (RLOS) can be decomposed into radial motion of an arbitrary reference point O  on the target and rotat...

Ngày tải lên: 22/06/2014, 23:20

... their correspondence relationship in format of 2D motion vectors, where the local motion is marked by gray vectors. Based on the physical parame- ters of camera motion, the reference GMM parameters ... predicted image of Figure 1(a) after camera motion compensation based on the estimated parameters. A 2D global motion field is also constructed by recomputing the 2D motion vectors...

Ngày tải lên: 22/06/2014, 23:20

... used be- cause for frame interpolation, true motion vector is needed for every pixel [17]. The transmitted motion vectors are not the true motion vectors and they are also produced for every (16 ... occurs for pixel P, who has initial motion vector of (0, 0). The correct motion vector for pixel P is (4, 0). The motion vector search space is ( −1 ≤ dx ≤ 1, −1 ≤ dy ≤ 1), h...

Ngày tải lên: 23/06/2014, 01:20

... divides the cell-center and cell-outer users, can be tuned for performance optimization. However, the ratio of available resource numbers for cell center and cell outer is fixed at 2:1. As a result, ... the base station in meters. Wall loss Lwalls 15/10/7 dB for external/internal/light internal walls respectively, 3 dB for doors, and 1 dB for windows Outdoor path loss 28 + 35log10(d...

Ngày tải lên: 20/06/2014, 22:20

... authors would like to thank the Federal target programme Research and Pedagogical Cadre for Innovative Russia for 2009-2013 (grant no 14.740.11.1449) for providing financial support to this ... speed for tapping-mode atomic force microscopy. Rev Sci Instrum 2002, 73(8):2928-2936. 2. Kodera N, Sakashita M: Dynamic proportional-integral-differential controller for high-speed at...

Ngày tải lên: 21/06/2014, 17:20

... lim t→0 ϕ(σt) ψ(t) = σ p−1 , for all σ ∈ R + , for some p > 1. (Φ 2 ) lim |t|→∞ ϕ(σt) ψ(t) = σ q−1 , for all σ ∈ R + , for some q > 1. (F 1 ) f(t, u, λ) = ◦(|ψ(u)|) near zero, uniformly for t and λ in ... lim t→0 ϕ −1 (σt) ψ −1 (t) = ϕ −1 p (σ), for all σ ∈ R + , for some p > 1, (4) and (ii) lim |t|→∞ ϕ −1 (σt) ψ −1 (t) = ϕ −1 q (σ), for all σ ∈ R + , for some q >...

Ngày tải lên: 21/06/2014, 20:20

... simplified models are used to study and abstr act its performance. A simple formula for estimating the number of clusters that will be formed in an ad hoc network is derived based on the analysis, ... connectivity information w hile the AM uses only the average density information. Though the NDM outperforms AM, these results provide evidence that the AM provides a way to roughly predict the...

Ngày tải lên: 23/06/2014, 00:20

... no. 5, pp. 650–662, 1976. An Approximate Algorithm for Robust Adaptive Beamforming 2683 [5] M. H. Er and A. Cantoni, “Derivative constraints for broad- band element space antenna array processors,” ... computed the weight vector w for vari- ous values of θ r . Figure 2 plots the SINR as the function of θ r . The result for the conventional array computed by (3) is also shown for com...

Ngày tải lên: 23/06/2014, 01:20

... FPGA has shown speeds between 95.9 fps for HD1080p frames, 229fps for HD 720p and between 2502 and 12623 fps for CIF and QCIF formats. Keywords: motion compensation; quarter-pel; address; memory; ... than a maximum of 60 fps for HD frames obtained in [7]. For smaller image formats, the framerate is considerably higher: between 12623 fps for QCIF and 2502 fps for CIF format. T...

Ngày tải lên: 20/06/2014, 04:20

... pat- tern for fast block motion estimation,” IEEE Transactions on Circuits and Systems for Video Technology,vol.12,no.5,pp. 349–355, 2002. [8] Z. Chen and Y. He, “Fast Integer and Fractional Pel Motion estimation,” ... frames. For the FRFS, if the minimum SAD at layer 2 is over a threshold, MV refinement (Step 3)isnotperformed for its corresponding reference frame. As a result, thi...

Ngày tải lên: 22/06/2014, 23:20