Advanced Materials Research Vols. 1049-1050

Abstract: The construction of informationization is an important indicator to the promotion of tourism services. Mountain Tai tourism is an important subject of Tai’an cultural tourism industry, and the tourist information construction has already have a certain amount of development, but there is still a great weakness to realize truly the goal of building cultural tourism. This article starts with tourist electronic commerce and put forward some ideas on Mountain Tai tourist information construction, hoping to make efforts to the construction of Mount Tai tourist informationization.

Abstract: This paper analyzes the characteristics of four kinds of possible channels in UHF RFID communication system, and makes a deep analysis on additive white Gaussian noise channel and binary symmetric channel. At the same time, it sets up the ASK modulation and demodulation simulation models of those two kinds of channels, summarizing the relationship between the bit error rate and the variety of signal to noise ratio of those two kinds of system. Finally, it concludes the optimal parameter of transmission process in the RFID system in experiments.

Abstract: Music algorithm has good spatial resolution, provides the possibility to further improve the performance of fire radio communication system, but the algorithm in the target range rapidly changing circumstances poor stability. Aiming at this problem, this paper proposes a MUSIC algorithm based on time domain analytical signals (TAMUSIC, Time-domain Analysis MUSIC). The TAMUISC algorithm first constructs analytical time-domain signal; then the time domain analytical signal covariance matrix; finally the covariance matrix eigenvalue decomposition, the noise subspace estimation results of spatial spectrum. The simulation results show that, TAMUSIC algorithm in target azimuth change quickly, compared with the conventional MUSIC algorithm, need a short observation time, observation has smaller variance.

Abstract: Errors are common human failures occurring in information interface and its cognition mechanism of errors is an important hitting-point for improving interface design as well as the key for reducing cognition difficulties. This paper studies error factors of information interface in human-computer interaction based on visual cognition theory. A feasible attention failure model is established to solve some design problems which result in serious failures in information recognition and analysis, and even in operation and execution processes.

Abstract: By analyzing the advantages and disadvantages of the existing dynamic message routing model in ESB,propose a new dynamic message routing model based on load balance. This paper applied the message routing components in the Enterprise Integration Patterns to the routing model of ESB.By using abstract routing table and real-time service monitoring and load balance strategy,the system efficiency has been improved.The experimental results demonstrate the effectiveness of this model.

Abstract: Using analytical method, based on the principle of effectively using satellite coverage area, constrained by satellite load operating height, the paper designed the regional coverage resource satellite constellation and presented all the design process. After that, the satellite orbit and constellation’s orbit parameters were obtained. Based on that, the resource satellite constellation graph was generated by using STK.

Abstract: Focus on designing data exchange pattern for Spaceflight TT&C Ground System based on Google Protocol Buffers, this paper carried through research and design on related critical technology. The basic theory and using method of Protocol Buffers were introduced, encoding and decoding mechanism using Protocol Buffers were designed, TT&C data processing & transmitting pattern as well as data structure renewing & maintaining pattern were discussed, and the advantages of applying Protocol Buffers to Spaceflight TT&C Ground System data exchange area were also analyzed.

Abstract: According to interpretation learning theory and skills, this paper constructs a platform of interactive interpretation study on website, aiming at building an open, systematic and interactive training platform for users to practice interpreting without time or space limitation. The web is consisted of five modules, listening and comprehension, memory, figures conversion, language reconstruction and interpreting, which constitute the fundamental steps of acquiring interpreting skills based on the skill-centered theory. Moreover, with Web Real Time Communication (WebRTC) technology and HTML5 development platform, interactive study function on the web enabling users to practice together can be finally realized.

Abstract: The long term evolution (LTE) system is a high data rate transmission system. And the channel estimation is critical to it. In this paper, a novel channel estimator on the basis of Discrete Cosine Transform (DCT) method is presented for LTE. It can mitigate the aliasing error caused by spectral leakage well and is applicable for non-integer sampled channel because DCT can reduce the high frequency component. Its performance is much better than LS method and close to LMMSE method, and the complexity is much simpler than LMMSE. The simulation results show that the DCT-based method is superior to the traditional channel estimation algorithm in the multi-path Rayleigh fading channel which is a available and effective channel estimation method.

Abstract: This paper mainly studies the TD-LTE cell search synchronization process. The synchronization process is mainly divided into the Primary Synchronization and the secondary synchronization detection process synchronization process. This paper present a mixed-correlation primary synchronization detection algorithm and Non-coherent secondary synchronization detection algorithm. Mixed-related synchronization detection algorithm can reduce the impact of frequency offset and multipath effects of detection. Non-coherent detection algorithm can reduce computation complexity so that it can improve the secondary synchronous detection rate.