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In the process of digital signal processing, the random signal, noise and time-varying signal must be dealt with. The adoption of digital filters with fixed coefficient can not realize the optimized filter. Therefore it is necessary to design an adaptive filter to track the changes of the signal and noise in order to realize optimal filtering. This paper introduces the structure and principle of adaptive...
The Co-simulation technology for complex product development, design, innovation, assessment, management provided full support. Based on the analysis of complex products co-simulation features, functions and modeling on the basis of the process, based on the HLA/WE_RTI co-simulation of complex product platform and its architecture, Based on a simulation of product integration modeling, simulation...
Take the relational database as the data model, in analyzes several kinds already in the data encryption technology base which has, studies the database data to save and to establish the corresponding database confirmation mechanism by the scrambled text way. Proposes based on the connection sub-key production algorithm as well as based on the user information key management technology and the field...
Based on the Planck formula, we established the model of blackbody sub-millimeter wave radiant brightness and analysed mainly the relationship between metal object emissivity and wavelength, temperature and transmit direction. Additionally, we revealed the change rules about different temperature metal object radiant brightness in Infrared sub-millimeter wave and microwave.
In peer-to-peer networks, The availability of data reduces severely by the node frequent offline, a lot of data transmission service can not carry out because the bandwidth resources extremely limited, there is no a administrator to manage transmission about virus document. To solve these problems, this paper puts forward a method with studying of P2P network model based on data agent memory thought...
The aim of Low-carbon economy is to decrease the emissions of CO2.The CO2 that let out by the thermal power system takes a considerable part. Hydrothermal power dominant in the power source in China,so it has an important meaning to research optimal dispatching of hydrothermal system. The problem of short-term scheduling of hydrothermal power system optimization is a complex, non-convex, nonlinear...
CDMA 2000 1x EV-DO system can transmit the reverse traffic data at five different rates according to the channel quality and other affected factors. If the rate indicating information is missed or decoded unsuccessfully, the access network has to require the access terminal to transmit the information again. This paper refers the schemes used in the IS-95 system to solve the similar problems, and...
The number of users accepted by a cell is limited by the total received interference power at base station transceiver in code-division multiple access (CDMA) system. In this paper, we propose a received power based call admission control (MSRP-CAC) scheme supporting multi-class services for uplink, which determines the admission of multi-class services via presetting power allocation ratios. The...
Improved branch and minicut method for image segmentation is proposed. The most valuable contribution of proposed algorithm is that, accelerating branch and minicut method, avoiding exhaustive search on whole parameter space, and preserving segmentation quality at the same time, by loosening the condition of being a leaf node. Branch and minicut method utilizes branch and bound algorithm to explore...
Communication between different kinds of Programmable Logic Controller (PLC), especially the Serial Communication (SC) between S7-300 and FX PLC, was investigated in this paper. The approach of SC between these two kinds of PLC was researched, and the communication performance was tested. On the basis of adequate analysis to the Programmable Port Protocol (PPP) of FX PLC, we designed the SC system...
Because of having many advantages, optical fiber network is applied widely in high-tech fields. But the existence of optical fiber fusion defects will debase the quality of message transmission. A set of defect recognized system is established based on the compensatory fuzzy neural network of using wavelet and with fast algorithm in this paper. The dasiaenergy- defectpsila method to extract eigen...
The existing papers have proposed the Call Admission Control (CAC) arithmetic based on resource reservation, which only considered ideal environment, for CDMA cellular systems with no-uniform traffic distribution among cells. This paper extends the arithmetic to intra-cell unbalanced traffic environment to make the arithmetic more practical. The inter-cell interference factor is not a constant and...
A kind of rock bolts length measuring system using techniques of embedded system and ultrasonic waves is proposed. It can realize controlling for circuit of ultrasonic transmitting, circuit of ultrasonic wave receiving, electrical source, circuit of A/D transforming, keyboard, LCD, loudhailer etc by program, and analyzing signal of reflecting ultrasonic waves. The system's MCU is LPC2210 in the series...
The high atmospheric attenuation of V-band millimeter wave, make it only application in outer space and the short-range detection. The FMCW short-range radar systems in this band have more than one non-linear subsystems, some of whom will interfere the system with error, or even wrong. To this end, the first non-linear analysis of the system, focusing on the effect of mixer and VCO on difference frequency...
A Ka band Cassegrain monopulse antenna has been designed and measured. The tapered rod antennas are used as the feeds of the Cassegrain antenna because their blockage is small and their bandwidths are very wide. The measurements show that the gain of sum pattern is 28 dBi, the sidelobe levels of the sum pattern are less -15 dB, the null depths of the difference pattern are less then -25 dB and the...
Millimeter wave synthetic aperture radiometer (MMW-SAR) technology can use phase information of electromagnetic wave radiating from target, and will be real-time imaging with less receiver elements. However MMW-SAR is limited to 2D imaging due to passive regime nowadays, lack of range information of target, which is very unfavorable for target detection and identification, thus this paper presents...
On basis of analyzing the antenna temperature contrast of metal solid objects, the passive millimeter wave radiometric measurement was presented for concealed body technology. In the experiment the metal solid object was under the condition of naked and covered with weft by a 94 GHz dicke-type radiometer. The sky temperature was also given by the former measurement. The results show the antenna temperature...
In group decision making (GDM) problems, fuzzy preference relations are often used by decision makers to express their opinions. This paper has proposed new two induced ordered weighted averaging (IOWA) hybrid operators improving aggregation stage developed in the resolution process of GDM problems: the dual consistency (individual consistency and collective consistency) (CIC-IOWA) operator, which...
Owing to the shortage of the city land reserve funds, loan funds generally are applied to reserve the lands besides the own funds. This paper aims at proposing city land reserve decision-making model under the condition of limited reserve funds based on market-oriented operation pattern of the city land reserve. The model can be used to confirm the reorder point in the process of land reserve, so...
The choice of fuzzy membership relates to the classification results of fuzzy support vector machine (FSVM). In this paper, membership based on distance and affinity among samples is researched. Aimed at the disadvantage of membership based on affinity among samples that can not reflect the distribution of radar echo in feature space, super-ellipse is introduced to improve the membership and applied...
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