Applied Mechanics and Materials Vols. 602-605

Abstract: According to the FPGA system model, we design the coupling scheme of basic knowledge and professional skills cultivation of higher vocational colleges architectural major, and use the matrix algorithm to improve the scheme, which realizes the overall coordination development of architecture students. Combining with the matrix variance, we establish talents cultivation coupling model of higher vocational colleges architectural major, and give the expression of coupling coefficient function. Finally, we use VC programming to set up the computer coupled solver, and solve the success cultivation rate of modern architectural talent, and get the coupling effect of talent cultivation. It provides a new computer method for talents cultivation in higher vocational colleges.

Abstract: In order to conduct estimation of parameters in signal processing, using maximum likelihood estimate and the minimum mean square error estimate and maximum a posteriori probability in Bayes estimate . The experimental results show that: the maximum likelihood estimate accuracy, but search volume greatly; and Bias estimation to a certain extent, can improve the operation speed, but lower precision. So in the actual operation, select appropriate estimate methods based on the specific conditions.

Abstract: The finite difference time domain (FDTD) method is a numerical technique used in time-domain acoustic simulation. However, the huge computing capacity has been an important limiting factor for its applications. In this paper, we will present a graphics processing units (GPU) - based parallel FDTD framework and its successful application to the estimation of time-series sound pressure data. Compared with the computer, the runtime of acoustic field FDTD simulation on GPU is dramatically decreased. The acceleration in runtime has made such study possible, and will pave the way for other studies of large-scale computational acoustic problems which were previously impractical.

Abstract: Retracted paper: In recent years, much research has been devoted to the analysis of 128 bit architectures; on the other hand, few have evaluated the construction of wide-area networks. In fact, few cyberneticists would disagree with the understanding of IPv6. This is an important point to understand. we describe an autonomous tool for developing compilers, which we call ADZ.

Abstract: Because the equipment management of wide geographic distribution and it is difficult to obtain real-time equipment quality status for the equipment management system. The system built a quality monitoring and management system of distributed equipment, formed the command and data exchange network based on Beidou satellite system, achieved the timely transmission of information quality monitoring equipment, accurated grasp equipment status, realized the equipment safeguard informatization, accurated security provides the means to support.

Abstract: The step frequency radar is a wideband and high resolution system, which is widely used in target positioning and tracking. The echo signal model of step frequency radar consists of complex sine functions with different frequencies. The maximum likelihood function of multiple frequency components is deduced based on the model. The frequencies are calculated by Genetic Algorithm and the one dimension scattering centers are extracted.

Abstract: Nowadays, there are so many requirements for time-sensitive in designing Ad Hoc network. However, the existing protocols of MAC, such as ALOHA、CSMA、IEEE802.11 etc. which use the “back-off” to avoid collision, or use the “hand shaking” to order the channel bring the time-delay to MAC. The paper promote a MAC protocol named ISA-MAC which adopts FH-TH combine concatenated coding to relieve channel-collision, improve the efficiency of communication and provide the ability “sending at anytime”.

Abstract: By analyzing the second-order and fourth-order IIR filter that affect the variance adaptive prove second-order IIR model has a single peak characteristics, to achieve stable convergence; while the higher-order IIR model polymorphic, so the need for the estimated parameters are initialized conclusions. Proposed use of FFT frequency estimation assisted IIR adaptive filter to achieve more frequent rate estimation, parameter estimation for the multi-point frequencies adaptive selection process provides a theoretical basis.

Abstract: Propose a use of IIR adaptive frequency estimator to achieve multi-frequency estimation algorithm. Analysis IIR filter characteristics, indicating that the second-order IIR model has a single peak characteristics, to achieve stable convergence; while the higher-order IIR model polymorphic, so the need for the estimated parameters are initialized. More traditional phase locked loop algorithm, which has no mixing components, to achieve the advantages of full-band frequency estimation, frequency estimation accuracy under the same environment and phase locked loop fairly.

Abstract: This article introduced the 6 sigma management and 6 sigma level. The key point is to explain 3.4DPMO how to calculate. And,it also introduced the important means of six sigma management. At last,it shows the application of six sigma.