The rapid development of agricultural e-commerce has led to more and more agricultural products on the website, and the problem of information overload has become increasingly prominent. By analyzing the user's historical score data set, this paper analyzes the recommended models of different collaborative...

Quadrature index spatial modulation (QISM) with two constellations is presented to exploit the potential spatial diversity gain from spatial domain in multiple input multiple output (MIMO) channel system. In this paper, we consider a transmitted spatial vector formed by mapping two constellations symbol...

In order to strengthen the study of complex war issues in the era of intelligence, the idea of using virtual reality technology as a bridge to connect artificial intelligence and complex warfare is proposed. By analyzing the characteristics, classification, and development of virtual reality technology,...

Network anomaly detection is a hot topic in the field of detection and is of great significance for ensuring the reliable operation of the network. The current research direction is mainly the detection of the host's own operating conditions, and the detection of a single resource, low detection efficiency...

In order to correct the middle value of VHF propagation loss, plan tactical wireless communication network well and guarantee quality of communication, this article firstly contrasts applicability of deterministic models and statistical models in background of tactical wireless communication. Then, for...

In this paper, a novel varactor-tuned microstrip bandpass filter consisting of two dual-mode open loop resonators was proposed. The two open loop resonators are placed diagonally to prevent the occurrence of resonance between them. No coupling exists between the operating odd-mode and even-mode. Based...

With the development of computer and communication technology, the Internet of things (IoT) is developing vigorously among people to realize interconnection, to link objects or people with any other objects. This paper is based on the related research results of a series of concepts such as the semantic...

According to the characteristics of Tactical Internet architecture, a effectiveness evaluation method of Tactical Internet based on QoS performance is proposed. The performance of the whole network is evaluated by using the underlying link transmission quality. It solves the difficult problems of evaluation...

The air quality is poor in Xuchang city in winter. It often happens that severe and moderate pollution phenomenon. And the primary pollutant is PM2.5. The synergistic effects of SO2, NO2, PM10, CO, O3/1h, and O3/8h air pollutants on PM2.5 in winter were analyzed in this paper from the perspective of...

Correlation filter (CF) based tracking algorithms have shown favorable performance in recent years and have the impressive performance on benchmark datasets. The combination of deep learning and correlation filtering has also become a research hotspot. However, the tracking model has limited information...

With the development of information technology, enterprise users have higher and higher demand for IT terminal system. Meanwhile virtualization technology is having a breakthrough. As an emerging technology as well as a representative of virtualization technology the cloud-hosted virtual desktops technology...

3DMAX, a three-dimensional animation rendering and production software based on PC system, is produced by Discreet. Its existence has made the special effect of television and animation have revolutionary progress. Besides, it is widely used in the advertisement, television, industrial design, construction...

In the new era of Internet and big data, urban traffic has been effectively relieved, which mainly benefits from the reasonable application of big data technology. The fully expression of application advantages of big data has improved urban traffic jam and helped intelligent transportation service more...

OFDM technology plays an important role in multicarrier modulation. Combining with cognitive radio technology, the traditional OFDM transform into NC-OFDM. The two main drawback of the NC-OFDM system are the secondary users’ sidelobe interference to primary users and the high PAPR (peak to average power...

Large data, big data, refers to a large set of data sets. This kind of data collection has massive data information, which needs to be processed with more intelligent, rapid and efficient means to obtain value information. In the background of large data, the traditional computer information processing...

Carrier Sense Multiple Access is a media access control protocol with two contention types in wired network and wireless networks. This paper compares CSMA/CA and CSMA/CD competition modes, introduces and analyzes the existing collision avoidance algorithm, and designs a CSMA/CA collision detection avoidance...

Image classification and object detection are two computer vision techniques that are currently commonly used. In this paper, convolutional neural network (CNN) and region-based CNN (RCNN) are used as examples to analyze and compare image classification and object detection. This paper will analyze the...

In order to improve the recognition rate of license plate characters, a new method based on combination feature and partial character input is proposed. First, according to the texture characteristics of the license plate character, the basic LBP operator is improved, and then the characteristics of...

This paper proposes a two-stage iterative decoding scheme named matrix transform belief propagation scheme (MT-BP) based on conventional belief propagation (BP) algorithm for low-density parity-check (LDPC) codes. By introducing information measurement, location vectors and parity check matrix transform,...

The Internet of things (IOT) is a new achievement in the development and application of computer information technology, which promotes the convenience and intellectualization of people's daily life. The Internet of things mainly realizes the intelligent communication between machines, that is to say,...

According to the quality management requirements of acquisition and tracing data such as real-time status of parts, manufacturing data during electronic assembly process, a technical architecture of data based on manufacturing internet of things enabled environment was constructed. Based on this architecture,...

IHE-XDS (Integrating the Healthcare Cross-Enterprise Document Sharing) is an interagency, involving multiple medical institutions and users, for the integration of medical information sharing framework. The medical information shared by the medical institutions in this framework is mainly electronic...

The rapid development of informatization has led to an exponential explosion in the amount of information. As the basic energy support system for the world’s second largest economy, China has also entered the era of power big data. At the same time, in view of the development status of China’s power...

With the development of science and technology, virtual reality (VR) technique has been applied to various fields. In civil engineering, the application of VR technique to field practice and training has still been limited. By summarizing the characteristics of field practice and training, the potential...

With the rapid development of network technology and information technology, the era of big data has come. Every day is accompanied by a huge amount of data. The library is also undergoing different changes every day in the processing of information resources and data resources. Knowledge and information...

This paper presents a new efficient algorithm for the Josephus problem using Binary Count Tree. Binary count tree is a data structure ameliorated from the BST which additionally records the node-count of each sub tree. In this algorithm, the whole Joseph circle is put into the binary count tree. The...

With the development and application of high-tech, such as big data and artificial intelligence, the form of operational command has undergone qualitative changes, and intelligent combat operations are gradually becoming possible. This paper proposes the essence of the intelligent operational command....

In this paper, the upper and lower limits measurement method of the spurious-free dynamic range is proposed. With analyzing the error source in measurement, the error correction is given for the upper limit measurement, and improved the lower limit measurement method.

This paper presents a novel spectrum sensing algorithm based on Fisher classification for spectrum sensing speed, accuracy and reliability. With application of the pattern recognition theory to the process of specetrum sensing modelling, the spectral holes are employed to the greatest possible advantage...

The data fitting model is the basis for data processing in the positioning of digital zenith camera. In this paper, the similarity transformation model, affine transformation model, projective transformation model and the solution of parameters of these models were strictly deduced. And the three data...

According to the characteristics of the commonly used wind measuring ultrasonic sensor NU150E25TR in the market, the main reasons for the error are analyzed. The characteristics of several main nonlinear compensation algorithms such as linear regression method, least square method and fold line method...

There hasn’t been a quick and easy way to physically connect outdated test instruments to your computer, most engineers need to program and control test instruments and communicate with them from a PC or laptop, It wound wasted a lot of time and effort getting your instruments hooked up, dealing with...

In order to realize the real-time accurate recognition and tracking of lane lines for self-driving cars, an improved Hough transform method for lane line recognition and fitting has been introduced based on the preprocessing of current frame lane line image. The extended Kalman filter is used to study...

This paper introduces the principle of sonar and the basic equation of sonar, and the extensive application of sonar equation in marine instruments. By knowing the basic parameters of ultrasonic transducer, the parameters of the function of the instrument are calculated, such as the loss of sound wave...

Network resilience is an important indicator for measuring the pros and cons of fault-tolerant strategies. For the resilience prediction of the network design stage, the traditional prediction methods can only be modeled and forecasted based on fault tolerance strategies based on a single network, and...

The three-stage DEA model is used to eliminate the environmental influence and random interference, according to variable scale compensation (〖BC〗^2) research and evaluation of logistics efficiency in east China from the perspective of investment. In this paper, 5 environment variables, especially education,...

In order to solve the problem brought about by traffic congestion to people's daily life, this experiment uses the effective combination of intelligent transportation and vehicle networking technology, and proposes the real-time traffic information system based on the vehicle networking end - tube -...

Aiming at the problem of minimizing the maximum makespan and minimizing the delay time of multi-objective permutation flow shop scheduling problem (MOPFSP), a block-based artificial chromosome non-dominated sorting genetic algorithm II (NSGA-II) is proposed. The algorithm combines the stochastic mechanism...

In recent time, a plenty of “jaywalkers” cause threat to some law-abiding drivers in the city, and the government decides to take some measures to deal with the phenomenon. At present,they want to carry out different surveillance plans for the entire district using a certain number of drones. In order...

Bird swarm algorithm (BSA) is a new heuristic intelligent algorithm, which has been successfully applied in many fields. In view of the shortcomings of bird swarm algorithm which is easy to fall into local optimum and premature convergence. I propose an improved bird swarm algorithm (IBSA). Firstly,...

Rural houses are frequently changed and the data update takes much time and effort. Concerning the lack of software for real estate surveying and mapping fieldwork, and the difference of interaction between mobile devices and ordinary computer, the parametric data acquisition technology for rural real...

With the gradual development of the smart grid business, business volume of the each State Grid E-Channel would be more and more large, operation complexity and daily supervision difficulty would increase, the existing E-Channel supervision mode facing the pressure is increasing. How to integrate existing...

The coding efficiency of the Wyner-Ziv video decoder is largely dependent on the quality of the side information obtained in the decoder. The reason why constructing effective side information is difficult is partly caused by unavailability of the original video sequence in the decoder. The traditional...

An energy revolution with new energy as its fulcrum has become a new development trend, and many network security problems have emerged while new energy is developing rapidly.In this paper, the threat-driven network security methodology is used to analyze and model the threat of new energy field station...

The high peak to average power ratio in the cognitive NC-OFDM system causes the signal to fall into the nonlinear region of the linear amplifier, resulting in large distortion. Combining the advantages of partial transmission sequence algorithm and clipping algorithm in OFDM system, according to the...

This paper mainly studies the enterprise production based on the actual needs with spring support pin automatic feeding machine. This automatic feeding machine has been illustrated from the structure, working principle and characteristics, etc. This automatic feeding machine has many advantages such...

with the development of the Internet, cloud computing and cloud storage are more and more widely used. Users are starting to store more and more large data files on cloud servers. In the cloud storage mode, some private data and sensitive data of users may be leaked. To protect data security, users need...

A Monitor AGC control system is applied to a hot strip mill in a steel plant, due to some irrationality gain factors and the hysteresis of the Monitor AGC control output, the strip thickness deviation is large. This paper designs a new type Monitor AGC that includes two control methods:Integral type...

With the rapid development of smart phone devices, the update and iteration of APP is getting faster and faster, every time users update, they need to go to the app store to download the application and reinstall it, this consumes time and flow, and the user experience is not good, so hot update mechanism...

In recent decades, computer graphics have developed rapidly. With the development of computer graphics, some related technologies have also appeared one after another or have made great progress on the basis of the original. New terms such as virtual reality, digital city, digital museum, and reverse...

With the rapid development of computer information technology, the number of computers and application systems in enterprise networks gradually increases, and the security threats enterprise networks face become more and more prominent. This paper explains the hidden dangers and problems the information...

Fuzzy control theory is a kind of advanced control strategy based on fuzzy mathematics, language rule representation and advanced computer technology. This paper mainly introduces how to use ultrasonic sensor as the measurement variable delivery unit, and the fuzzy controller as the control unit to realize...

Range-gated laser imaging obtains different range-gated images by imaging the target slice. However, range-gated laser imaging cannot provide the full spatial position information of long-range targets. Thus, this paper proposes an algorithm that combines the threshold and cross-correlation methods for...

We propose a novel fiber Bragg grating (FBG) sensor system with low pump power and high optical signal to noise ratio (OSNR). This sensor system is based on a distributed Raman fiber amplifier and an Erbium doped fiber laser (EDFL). The EDFL cavity is composed by an FBG and a fiber loop mirror which...

Quartz crystal microbalance (QCM) is a very powerful method that can measure a mass variation per unit area by measuring the change in frequency of a quartz crystal sensor. The hybrid temperature effect on a QCM sensor in solution leads to unconvincing detection results. A 3D Computational fluid dynamics...

With the development of deep convolutional neural networks (CNNs), it can be achieved higher accuracy in many aspects, including computer vision, speech and natural language processing. Performance efficiency of CNN at the hardware level requires overcoming the large calculation-related problems, so...

In the “Internet+” digital age, the use of customers’ information was not fully utilized when pushed the information. The traditional similarity exists some problems, such as incalculable, indistinguishable and high-level etc., it results in poor pertinence of personalized product services and a decline...

In this paper, a new reconfigurable antenna, a sea water antenna, is constructed and simulated to analyze the its radiation performance by applying Soft CST. Firstly, after analyzing its material structure and properties, a simulated model for the sea antenna is established. Secondly, the effects of...

In order to improve the life cycle of wireless sensor networks, An opportunistic routing protocol (GEBOR) based on geographic location and energy balance is proposed.The routing protocol comprehensively considers the transmission radius, link quality and residual energy threshold, and transmission energy...

big data is an emerging product in today's era. Under the premise of the increasing development of this emerging product, information security issues come along with it. It believes that the security of personal information in the context of big data is not just a private issue, it is also a public management...

In order to carry out similarity retrieval in mass information accurately and efficiently, this paper proposes a similarity retrieval algorithm based on multilevel fingerprint comparison matrix. For mass text information, firstly, using the Simhash algorithm to generate multilevel fingerprints; secondly,...

A system design for monitoring resistance welders remotely based on wireless communication and Internet. It combines field welder group-control system with remote communication technology and replaces the wired-base system with wireless network. The system follows the principle of modular and distributed...

The cloud data center for aerospace trial mission must be high-performance, high stability, high security and scalable computer network architecture, In order to support the need for continuous updating, upgrading and development in the future, and ensure the smooth implementation of the aerospace test...

Aiming at the threats faced by embedded systems, using trusted computing technology to solve embedded security equipment problems is a feasible and efficient security solution. Under the premise of not changing the existing mobile device hardware architecture, a new secure boot mechanism of the embedded...

Cleft palate is a kind of congenital defect, and nasal leak is one of common symptoms in cleft palate speech. The automatic detection of nasal leak in cleft palate speech can provide a certain auxiliary basis for clinical diagnosis. Aiming at the characteristics of nasal leak in cleft palate speech,...

In the context of the gradual networking of urban rail transit lines, the focus of urban rail transit capacity will shift from the line to the network. At the same time, with the development of computer information technology, virtual cities have become more and more important for the planning construction...

Most of audio players on the market use the hardware filter or DSP chip to process spectrum, the use of the techniques on the one hand requires high hardware costs, on the other hand, software and hardware implementations is more complex. In order to overcome the shortcomings, a spectrum display using...

Most of audio players on the market use the hardware filter oAbstract. A multifunctional portable temperature control box based on semiconductor refrigeration technology is designed in order to meet the low and constant temperature requirements of space, military, medical, biological products and so...

Most of audio players on the market use the hardware filter oAbstract. As one kind of special motor, Brushless DC motor has characteristics of high efficiency, simple control, wide application range and others. The traditional brushless DC motor adopts square wave control, which cannot meet the noise...

In view of the problems of low surface detection efficiency and high error detection rate in domestic wood skin, a corresponding detection system is designed to identify four types of wood skin defects such as dead knot, slipknot, hole and crack on the surface of the wood. Based on the image recognition...

The network security monitoring device (ZJXD) designed is a network security monitor based on threat intelligence and anti-attack chain intrusion technology. The measurement system has the functions of data monitoring, automatic analysis, safety detection, event correlation and situation analysis, which...

With the development of 5G communication, radio monitoring data will have an explosive growth. Due to the large size, huge variety and strong specialty of radio data, data acquisition is becoming a concerned difficulty. The key links in radio service data recognition and acquisition are studied, and...

The usage of the spectrum and the trends in its demand is both critical to a good spectrum management and necessary to frequency allotments and assignments. In most cases automatic occupancy measurement based on traditional method is well suited but there still exists some deficiency. With a long-term...

Aiming at the demand of high-speed mobile payment, based on the analysis of existing license plate recognition technology, a mobile payment scheme based on license plate recognition is provided. The scheme takes license plate recognition as the core and relies on the Internet, cloud computing and big...

At present, block chain has become a data thinking mode. In view of the decentralization characteristic of block chain, the consensus mechanism emerges, which to guarantee the generation of valuable data and information in a friendly, democratic and open form. Firstly, the position and role of consensus...

This paper explores the role of big data technology development in the promotion of aero engine health management (EHM) technology. Firstly, the research and development history of EHM is elaborated in detail, and then the key technologies for EHM research are analyzed. Finally, according to the existing...

The increase of energy utilization efficiency, the improvement of energy efficiency level, and the reduction of pollutant emission are the main targets of China's energy revolution. A series of energy technologies, energy management and energy supplies, such as the production, transformation, configuration...

Three typical textures of brittle, elastic and viscous foods were selected, and the mastication was simplified into 3 modes of cutting, pressing and grinding. The optimal mastication mode of each texture was identified according to the material destruction criteria and using the finite element method...

Nowadays, the structure of webpages has gradually become more and more complicated, and the content of webpages has gradually increased. This has caused a lot of useless and even illegal information in webpages. The screening of keywords in webpage information and the evasion of invalid illegal information...

Characterized by big data, artificial intelligence, IOT, automation, the industrial sector's transition to Industry 4.0 is much more than a question of technology. It will affect not only individual corporate strategy but also national economic and employment policy. Cold chain logistics will also witness...

The Very High Frequency (VHF) Data Exchange Systems (VDES) addresses the need to protect Automatic Identification System (AIS) and provides essential digital communications contributions for e-Navigation and Global Maritime Distress and Safety System (GMDSS). As the satellite component of the VDES, VDE-SAT...

It is quite difficult to analyze experimental signals since they have low Signal-to-Noise Ratio (SNR). Discrete Stationary Wavelet Transform (SWT) can be used for signal denoising because of its energy concentration and shift invariance feature. this paper focuses on the noise reduction algorithms based...

To discuss how to provide a reliable platform for processing big data, by studying some sub projects in core technology and its ecological environment, an extensible big data application system architecture used for processing large scale data sets is implemented. In addition, the architecture is organized...

A polarization hopping wireless communication system is proposed, the matching relationship between polarization hopping sequence and polarization states of antennas is designed, and a synchronization acquisition scheme is put forward for the proposed polarization hopping wireless communication system....