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 the two-dimensional geo-electric model, the tipper response of magnetotelluric(MT) depends on the numerical simulation TE mode. Firstly, the boundary value problem and variational problem were shown, and the finite element method was used for element subdivision, interpolation, integration and general synthesis. Secondly, the electric field value of each node was obtained through solving the complex...
Frequency domain controlled-source electromagnetic (fCSEM) is an artificial source electromagnetic sounding method, which developed on the basis of magnetotelluric sounding. For showing the fCSEM forward modeling result, numerical simulation method must be adopted. In this paper. Base on Matlab as programming tool, we adopted the finite element method of quadratic interpolation in a rectangular element...
In this paper, a novel design of refining precision of pseudo-range is presented and ameliorates the pseudo-range degradation in a scheme of reducing local code replicas' adjustment for real time software GPS receiver. The code phase error corresponding to pseudo-range degradation is estimated and compensated by linear interpolation and curve fitting, according to the discriminator output in delay...
A novel direct digital synthesis (DDFS) architecture is presented in this paper and achieved by FPGA. It consists of a phase accumulator, four phase-to-sine converters and off-chip D/A converter. The phase accumulator use pipelined parallel architecture; it consumes only 22% power of conventional pipelined accumulator with the same throughput. The interpolation and quad line approximation (QLA) minimize...
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.