Báo cáo hóa học: " Subband Adaptive Array for DS-CDMA Mobile Radio" docx

... the spreading code length is equal to the number of subbands K, and thus the array Subband Adaptive Array for DS-CDMA Mobile Radio 419 y(t) + . . . y 1 (t) y 2 (t) y K (t) I F F T  f 1  f 2  f K + + + w (1) w (2) w (K) x (1) M e (K) e (2) e (1) + + + − − − + + + r (K) r (2) r (1) Pilot ... broadband beamformers such as tapped delay line adaptive array (TDLAA) [1...

Ngày tải lên: 23/06/2014, 01:20

... proposed subband- adaptive shrinkage function also holds the symmetry as in case of soft shrink- age. This shrinkage distribution of subband- adaptive func- tion gives a profile closer to the form of ... 80 Noise level (%) Soft Hard Garrote Subband adaptive (a) 3.3 3.25 3.2 3.15 3.1 3.05 3 2.95 2.9 2.85 2.8 PRD 12345678 Noise level (%) Soft Hard Garrote Subband adaptive (b) Figur...

Ngày tải lên: 22/06/2014, 23:20

... 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 atomic force ... 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 project. R...

Ngày tải lên: 21/06/2014, 17:20

... 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

... exercises in a consistent way, with different performance profiles considering the performance adaptive nature of the controller architec- ture. For clarity sake, in the present preliminary/ feasibility ... progressive splinting tech nicall y diff icult i nclude determining how much force to use, how to apply the force, how long to apply the force, and how to prevent added injury to the a...

Ngày tải lên: 19/06/2014, 08:20

... architecture, as indicated in figure 3, includes three main modules: • Force field generator; • Performance evaluator; • Adaptive controller. The force field generator uses an impedance control scheme: 1. ... of the assis- tance that m ight occur in a continuous time adaptive scheme. The initial values of the force field’sgainK are selected before the first session as the minimum level ca...

Ngày tải lên: 19/06/2014, 08:20

... still note the best performance of the completely informed detectors (C1 and O1) and the lowest performance of the less informed detectors (C9 and O9). We note again, for a given set of unknown ... the military domain. For example for the standardised S-mode of such systems, the signal transmitted by a target for its identification is a PPM signal which has the form (1) where v(t)...

Ngày tải lên: 21/06/2014, 00:20

... techniques for image understanding and computer vision,” Ph.D. dissertation, Stanford University, Stanford, Calif, USA, 1995. [7] H. K. Aghajan and T. Kailath, “Sensor array processing tech- niques for ... load. Hence, there is a need for a faster procedure for estimat- ing the radius. In [7], Aghajan and Kailath proposed to re- place the Hough transform by the SLIDE algorithm for...

Ngày tải lên: 22/06/2014, 20:20

... results in a performance loss com- pared to the nonblind one. To compensate for this perfor- mance loss and also to have a controlled nonzero equaliza- tion delay which helps to improve performance ... in signal processing for communications and include system identification, multiuser de- tection, space-time coding, adaptive filtering and tracking, array processing, and performance ana...

Ngày tải lên: 22/06/2014, 23:20