The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In order to expand the dynamic range of fiber-optic interferometric demodulation, a novel phase compensation scheme based on the phase generated carrier arctangent algorithm (PGC-arctan) is proposed, which overcomes the limitation of the amplitude range from $- \pi /2$ to $\pi /2$ for arbitrary signals; and a Michelson interferometer measurement system is established to verify the rationality...
A novel temperature analysis method for compound semiconductor integrated circuits based on iteration algorithm has been presented. The iteration algorithm has been developed with efficient numerical calculation in MATLAB. This method has been applied to a simple module including 9 devices and the calculated temperature distribution has been compared to the simulated result by 3D simulation tool....
Due to the rapid development of the mobile robot technology, the vision-based object perception in changing scenes is of great practical significance. However, visual object recognition algorithms in constrained scenes, such as low image resolution, motion blur and background clutter is lacking. In this study, the performance of a representative object recognition algorithm called random ferns was...
Aiming at the issues of session persistence and load balancing in large-scale power consumers access, this paper studied the cookie session persistence mechanisms on Web applications, and proposed a session persistence mechanism, which includes a session persistence strategy to realize load balancing combing session sever with cookie. Experiments show that the mechanism could effectively solve the...
The blind watermark extraction algorithms based on discrete cosine transform need some the priori knowledge. To overcome this problem, in this paper, two kinds of blind extraction algorithms using wavelet transform are presented with out prior knowledge. Firstly, this paper proposed an extraction algorithm based on discrete wavelet transform. The low frequency component embedded in the watermarked...
With the development of technology, calculated amount especially in seismic data processing is increasing in virtual computing environment and the data size is astonishing. In this paper, based on the seismic data and the influence factors during the calculation, we present a suitable data partitioning strategy-the PGA (Pretreatment Genetic Algorithm) algorithm. The scheduling problem in virtual computing...
Improving detection definition is a pivotal problem for intrusion detection. Many intelligent algorithms were used to improve the detection rate and reduce the false rate. Traditional SOM cannot provide the precise clustering results to us, while traditional K-Means depends on the initial value serious and it is difficult to find the center of cluster easily. Therefore, in this paper we introduce...
The layout problem of weighted circles is a class of layout optimization problems with behavior constraints. Aiming at this NP-hard problem, this paper puts forward a fast heuristic ant colony approach(FHACA). This approach obtains the heuristic information from weighted matrix and uses it to construct the better ants and design parameters of ant colony optimization. The layout schemes of some ants...
A novel parallel iterative cycle QR decomposition detection algorithm in VBLAST-OFDM system is proposed in this paper. In order to overcome the disadvantage of the poor performance of the first detected layer in IQRD algorithm, the parallel detection is applied to the IQRD algorithm and the performance is improved effectively. Simulation results show that the proposed P-IQRD algorithm is superior...
Parameter method of using AR (auto-regressive) Parameters model is one of most important way to signal extraction, analyzing the acoustic signal data from different algorithms of AR Parameters Model in this paper, proves that different outcomes attributes different extractions to by simulating and the importance of preprocessing.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.