Considering that incremental localization is influenced by the heteroscedasticity problem caused by cumulative errors and the collinearity problem among nodes, this paper has proposed an incremental localization algor...
详细信息
ISBN:
(纸本)9781509018949
Considering that incremental localization is influenced by the heteroscedasticity problem caused by cumulative errors and the collinearity problem among nodes, this paper has proposed an incremental localization algorithm with consideration to cumulative error and collinearity problem. Using iteratively reweighted method, the algorithm reduces the influences of error accumulation and avoids collinearity problem between nodes with a regularized method. Simulation experiment results show that compared with the previous incremental localization algorithms the proposed algorithm can not only solve the problem of heteroscedasticity, but also obtain a localization solution with high accuracy. In addition, the method also takes into account the influence of collinearity on localization calculation in the process of locating, thus the method is suitable for different monitoring areas and has high adaptability.
Extensive research in the area of optical sensing for medical diagnostics requires development of tissue phantoms with opt ical properties similar to those of living human *** and improvement of in vivo optical measur...
详细信息
Extensive research in the area of optical sensing for medical diagnostics requires development of tissue phantoms with opt ical properties similar to those of living human *** and improvement of in vivo optical measurement systems requires the 1use of stable tissue phantoms with known characteristics,which are mainly used for calibration of such systems and testing their performance over *** and mechanical properties of phantoms depend on their ***,they must accurately simulate specific tssues they are supposed to *** tsues and organs including head possess a multi-layered structure,with specifie optical properties of each ***,such a structure is not always addressed in the present-day *** this paper,we focus on the development of a plain-parallel multi-layered phantom with optical properties(reduced scattering oofficientμ'and absorption cofficientμa)corresponding to the human head layers,such as skin,skul,and gray and white matter of the brain *** phantom is intended for use in noninvasive diffuse near-infrared spectroscopy(NIRS)of humnan *** parameters of the fabricated phantoms are reconstructed using spectrophotometry and inverse adding-doubling calculation *** results show that polyinyl chloride plastisol(PVCP)and zinc oxide(ZnO)nanoparticles are suitable materials for fabrication of tissue mimicking phantoms with controlled scattering *** matching was found between optical properties of phantoms and the corresponding values found in the literature.
This research explores the linkage relation of 2D software and 3D software and the favorable tool of 3D software, proposes a rapid standard modeling method based on Su software using data preprocessing, layer processi...
详细信息
This research explores the linkage relation of 2D software and 3D software and the favorable tool of 3D software, proposes a rapid standard modeling method based on Su software using data preprocessing, layer processing and components, taking Xueyuan Garden as a case.
Most resource allocation algorithms are based on perfect channel and constant system parameters information in cognitive radio networks (CRNs). In order to adapt real communication environment, a dynamic particle swar...
详细信息
In order to guarantee quality of service (QoS) for secondary users (SUs) and primary users (PUs) in underlay cognitive radio networks (CRNs), the objective of this paper is to obtain minimum interference power to PUs ...
详细信息
A new method is studied and designed in this paper to strengthen the adaptability and practicability of frequency-hopping (FH) signal detection under the complicated electromagnetic environment. The proposed method in...
详细信息
ISBN:
(纸本)9781509001897
A new method is studied and designed in this paper to strengthen the adaptability and practicability of frequency-hopping (FH) signal detection under the complicated electromagnetic environment. The proposed method includes four processing algorithms: channelization, estimation of the background noise, selection of the FH channel, and FH signal detection. Through this method, FH signals can be effectively detected under the complicated environment even with strong interference. The simulation and results suggest this method improves the accuracy of FH signal detection and signal-to-noise ratio greatly.
The car still represents the bulk of urban transport in large cities. However the weight of the car tends to be reduced as a result of public policies, the emergence of new transport alternatives and the increasing co...
详细信息
ISBN:
(纸本)9781467366373
The car still represents the bulk of urban transport in large cities. However the weight of the car tends to be reduced as a result of public policies, the emergence of new transport alternatives and the increasing cost of use of private vehicles. Public transport are not enough to resolve the problems of urban mobility and soft modes (walking and cycling) being relevant only for short distances and mild weather conditions. Nowadays, the collaborative models (carpooling and car-sharing) are increasingly popular and appear among the possible solutions. In this paper, we present new extensions of MATSim to support modeling and simulating carpooling and car-sharing trips. The new modules are totally integrated in MATSim and we carried out a validation study of our results with real data collected in the Grater Region.
A new method of high-speed object detection using planar capacitive sensor was presented. The planar capacitive consists of two electrodes. A sine signal was applied on one electrode to form a quasi-electrostatic fiel...
详细信息
A new method of high-speed object detection using planar capacitive sensor was presented. The planar capacitive consists of two electrodes. A sine signal was applied on one electrode to form a quasi-electrostatic field and another electrode was use to detect the object signal. The voltage of the detecting electrode is changed when an object approached to the planar capacitive. The detection model of the planar capacitive sensor was established. The relationship between the rendezvous distance and the voltage variation was deduced. The increase of the electrode diameter and the decrease of the electrodes space contributed to the improvement of the capacitive sensor's sensitivity. The experimental results showed that the planar capacitive sensor could achieve short range detection for high-speed object.
In order to solve the key technical problem in the verification process of mechanical and electrical coal mine anemometer, the paper presents digital recognition approach base on the characters of the anemometer image...
详细信息
Automobile anti-theft system need to use Multisensor data *** the problems in the process of multisensor data fusion,D-S evidence theory based on the weight distribution is corrected using the theory of matrix *** ver...
详细信息
ISBN:
(纸本)9781467377249
Automobile anti-theft system need to use Multisensor data *** the problems in the process of multisensor data fusion,D-S evidence theory based on the weight distribution is corrected using the theory of matrix *** verification,the algorithm can deal with the integration process operation problem of excessive very *** the case of failure of one or more sensors this algorithm can ensure the accuracy of the results of the integration.
暂无评论