Recently, there has been increasing demands on the positioning capability in weak signal environment such as inside building and urban area. The present assisted GPS technology uses GPS L1 signals only. Meanwhile, according to the GPS modernization plan, Block IIR-M GPS satellite will be first launched in 2005, transmitting the civil code in L2 frequency as well as in L1 frequency with the upda...

Knowledge has been identified as an important resource that contributes to the competitive advantage of an organisation. The problems associated with irresponsible use of power manifest itself in the loss of organisational knowledge and the expensive duplication of knowledge acquisition, rising costs and reduced performance. Although interpersonal skills are most often cited as essential for su...

MOTIVATION Electronic medical records, nowadays routinely collected in many developed countries, open a new avenue for medical knowledge acquisition. In this article, this vast amount of information is used to develop a novel model for hospital admission type prediction. RESULTS I introduce a novel model for hospital admission-type prediction based on the representation of a patient's medical...

Based on the software platform of MATLAB simula-tion, the paper collects the real GPS intermediate frequency (IF) signal by the IF signal sampler, and uses it to carry out the time-domain correlation acquisition and the fast Fourier transform (FFT) acquisition on the C/A code of GPS signal, and also carry out the decision of the singlebinary search and the M/N search on the personal computer. T...

Abstract To solve the problem of low Earth orbit (Leo) satellite constellation link spread spectrum signal acquisition in high dynamic weak environment, this paper proposes a strategy based on transfer model. In paper, we analyze characteristics signal. An improved method parallel code phase search model is introduced, improvement proposed to traditional algorithm illustrated through theoretica...

Supervisory Control and Data Acquisition (SCADA) systems control and monitor critical infrastructure such as natural gas, oil, water, waste-water, and electric power distribution and transmission systems. SCADA systems consist of a central control center connected to Remote Terminal Units (RTUs) which directly interface with sensors and actuators connected to the physical infrastructure. Most R...

In this article we present income tax matters regarding the reporting of losses and redemptions through reinvestment profit or deduction acquisition cost electronic cash registers, according to Fiscal Code related Implementing rules.

GPS and Galileo receivers must perform two dimensional searches, in time and in frequency, in order to acquire the correct code phase and correct Doppler frequency. Accurate and fast acquisition plays an important role in achieving reliable satellite-based positioning. When the code length is high (e.g., Galileo and modernized GPS), the searching strategy is of utmost concern for fast signal ac...

Software based Memory acquisition on modern systems typically requires the insertion of a kernel module into the running kernel. On Linux, kernel modules must be compiled against the exact version of kernel headers and the exact kernel configuration used to build the currently executing kernel. This makes Linux memory acquisition significantly more complex in practice, than on other platforms d...

Binary-offset-carrier (BOC) signals, selected for Galileo and modernized GPS systems, pose significant challenges for the code acquisition, due to the ambiguities (deep fades) which are present in the envelope of the correlation function (CF). This is different from the BPSK-modulated CDMA signals, where the main correlation lobe spans over 2-chip interval, without any ambiguities or deep fades...