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Search Results: 1 - 10 of 1309 matches for " Unambiguous Acquisition "
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Limited Bandwidths and Correlation Ambiguities: Do They Co-Exist in Galileo Receivers  [PDF]
Elena Simona Lohan
Positioning (POS) , 2011, DOI: 10.4236/pos.2011.21002
Abstract: Galileo is the Global Navigation Satellite System that Europe is building and it is planned to be operational in the next 3-5 years. Several Galileo signals use split-spectrum modulations, such as Composite Binary Offset Carrier (CBOC) modulation, which create correlation ambiguities when processed with large or infinite front-end bandwidths (i.e., in wideband receivers). The correlation ambiguities refer to the notches in the correlation shape (i.e., in the envelope of the correlation between incoming signal and reference modulated code) which happen within +/– 1 chip from the main peak. These correlation ambiguities affect adversely the detection probabilities in the code acquisition process and are usually dealt with by using some form of unambiguous processing (e.g., BPSK-like techniques, sideband processing, etc.). In some applications, such as mass-market applications, a narrowband Galileo receiver (i.e., with considerable front-end bandwidth limitation) is likely to be employed. The question addressed in this paper, which has not been answered before, is whether or not this bandwidth limitation can cope inherently with the ambiguities of the correlation function, to which extent, and which the best design options are in the acquisition process (e.g., in terms of time-bin step and ambiguity mitigation mechanisms).
Effectiveness of Banks after M & A  [PDF]
Brajesh Kumar Tiwari
American Journal of Industrial and Business Management (AJIBM) , 2014, DOI: 10.4236/ajibm.2014.41001

The goal of a bank merger is to increase the banks value in one way or another. The days of liberalization and globalization are in and there is a spate of mergers and acquisition which is sweeping the corporate world. Consolidation in the banking sector should largely be synergy-driven to acquire a quantum jump in the performance of the combined entity (2 + 2 ≥ 5). It can be achieved by combining complementary strengths, giving a better geographical spread, serving a larger number of customers in a better way with more diversified products and skills, realizing the opportunities for cross-selling, containing the cost of the merged entity, reduced competition, better utilization of available resources and deriving economies of scale. Over the last one and a half decade, the banking sector in India has not only grown in terms of size but also matured, diversified and consolidated to contribute towards building a robust financial system. In this paper, five cases of bank merger have been taken and Null Hypothesis, i.e. there is no difference in mean value of selected variables before merger and after the merger, is set and found rejected (in most of the variables). On the basis of the overall analysis, merger of Bank of Karad Ltd. (BOK) with Bank of India (BOI) was more effective in most of the variables as compared to merger of the New Bank of India (NBI) with Punjab National Bank (PNB), Benaras State Bank Ltd. (BSB) with Bank of Baroda (BOB), Nedungadi Bank Ltd. (NBL) with Punjab

Development of a Low-Cost Data Acquisition System for Biodigester  [PDF]
Pedro Felipe Sousa Teixeira, Luciano Fernandes Moura, Stênio Wellington Sousa Lima, Daniel Albiero, Franklin Arag?o Gondim, Auzuir Ripardo de Alexandria
Journal of Sustainable Bioenergy Systems (JSBS) , 2017, DOI: 10.4236/jsbs.2017.73009
The objective of this work is to develop a low-cost data acquisition system, which aims to optimize the anaerobic biodigestion process in an Indian model biodigester prototype, by monitoring the main parameters of the process. In this development, we decided to create a system from scratch, including the entire measure-process-show procedure using hardware tools and free software as means of reducing costs. This platform must be capable of obtaining analog data from the sensors arranged in the biodigester in long periods for the creation of more accurate reports. The system must be able to send this information to a Web server, so these values can be continuously tracked anywhere with access to the internet. The monitoring must be done in a hybrid application for An-droid, iOS and web browser.
Determina??o dos parametros de ondas de gravidade através da análise espectral de imagens de aeroluminescência
Wrasse, Cristiano Max;Takahashi, Hisao;Medeiros, Amauri Fragoso de;Lima, Lourivaldo Mota;Taylor, Michael John;Gobbi, Delano;Fechine, Joaquim;
Revista Brasileira de Geofísica , 2007, DOI: 10.1590/S0102-261X2007000300003
Abstract: the airglow layers are very useful to study and monitor the temperature and wave activity in the mesosphere region. all-sky cameras have been used to observe the nightglow emissions and to investigate the gravity waves characteristics and horizontal structures. the present paper describes the methodology used to estimate the gravity wave parameters such as the horizontal wavelength, phase speed, period and propagation direction, observed in the airglow images.
Linear optical realization of universal unambiguous discrimination of quantum state

Lin Qing,

物理学报 , 2009,
Abstract: In this letter, we propose an experimental scheme of universal unambiguous discrimination with only linear optical elements and the coincidence measurements. In addition, a modified scheme is presented to increase the success probability with ancillary photons. This scheme is feasible by current experimental technology and may be used in quantum cryptography.
An oversampling system for ECG acquisition  [PDF]
Yu Zhou
Journal of Biomedical Science and Engineering (JBiSE) , 2009, DOI: 10.4236/jbise.2009.27075
Abstract: Traditional ECG acquisition system lacks for flexibility. To improve the flexibility of ECG acquisition system and the signal-to-noise ratio of ECG, a new ECG acquisition system was designed based on DAQ card and Labview and oversampling was implemented in Labview. And analog signal conditioning circuit was improved on. The result indicated that the system could detect ECG signal accurately with high signal-to-noise ratio and the signal processing methods could be adjusted easily. So the new system can satisfy many kinds of ECG acquisition. It is a flexible experiment platform for exploring new ECG acquisition methods.
Ghani Rehman,Abdul Qadir Khan,Nadeem Haider Bukhari
Academic Research International , 2012,
Abstract: The present study aims to look into the problems faced by Pashto speakers, while learning English. The study particularly focuses on the pronunciation of English consonants, which are not found inPashto phonemic inventory. It further looks into the role of L1 in the pronunciation of the target English consonants. The study identifies that five English consonants namely, the labio-dental voiceless fricative /f/, the labiodentals voiced fricative /v/, the dental voiceless fricative /θ/, the dentalmvoiced fricative /e/ and the post-alveolar voiced fricative / / are problematic for Pashto speakers.The study further shows that these consonants are replaced by L1 sounds: 1) English labio dental fricative /f, v/ are pronounced as bilabial voiceless stop /p/ and bilabial approximant /w/; 2) Englishdental fricatives /θ, e/ are replaced by dental stops /t , d / ; 3) palatal voiced fricative / / is replaced by palato-alveolar voiced affricate /d /. It is suggested that English language learners with Pashto background should be properly trained to acquire correct English pronunciation.
Software Risks management through ACQUISITION STRATEGY
Er Kirtesh Jailia,Er.Pramod Kumar,,Mr.Javed Iqbal
International Journal of Engineering Science and Technology , 2010,
Abstract: The goal of acquisition planning is to create a roadmap that a program can follow to maximize its chances of successfully fielding a system that meets users’ needs within cost and on schedule. Many programs struggle during acquisition planning because even though a wealth of information exists, the process itself is not clearly defined or understood. Software acquisition planning is a powerful process that can help define the most promising acquisition options that best mitigate risks in the development of software. Developing an acquisition strategy is a key component of acquisition planning that provides a means of addressing risks through the program structure. Programs need structured ways to reason about software risks, formulate acquisition strategies to mitigate software risk, andevaluate their current acquisition strategy in an ongoing, systematic manner. In this paper we are trying to define the classification of the various factors through which the acquisition strategy can be easily enhanced. We also trying to show that how these acquisition factors can be used to manage the software risk with a new approach.

Lin Yunsong,Huang Yong,Xiao Xianci,

电子与信息学报 , 1999,
Abstract: The relationship between the discrete Fourier transform (DFT) and the symmetrical/Asymmetrical number system (SNS/ANS) is introduced in this paper. And the influence of noise upon the solution to an ambiguity problem in number system is also discussed. The principle of noise insensitive solution to the ambiguity in ANS is extended to SNS. The unambiguous bandwidth equation with noise protection in SNS is presented,based on which a real time noise insensitive algorithm in SNS for resolving undersampling ambiguous frequency is proposed.
Deriving Software Acquisition Process from Maturity Models—An Experience Report  [PDF]
Hussain Alfaraj, Shaowen Qin
Journal of Software Engineering and Applications (JSEA) , 2010, DOI: 10.4236/jsea.2010.33034
Abstract: The establishment of an existing practice scenario was an essential component in providing a basis for further research in the area of COTS software acquisition within the organisation. This report details the identification of means of describing the existing practice of software acquisition within an organisation and identification of models that could be used to present this view. The chosen best practices descriptions for the idealized model were maturity models, including SA-CMM, CMMI-ACQ, and ISO/IEC 12207. This report describes these models briefly and then describes the process of identifying the requirements for idealizing these maturity models into process frameworks that could be identified to actually business process models from a real organisation in order to identify gaps and optimizations within the organisation’s realization of the best practices model. It also identified the next steps in identification of the theoretical best practice framework, which will involve translation of the model to YAWL Petri nets and simulation of the process in order to identify potential modelling flaws or issues with framework efficiency. Implications of the currently ongoing research include the identification and correspondence of specific tasks and activities from ITIL and CoBiT frameworks with the generic key process areas of software acquisition frameworks and identification of sufficiently detailed structural framework models for each level in order to identify appropriate frameworks for application even in cases where these frameworks were not explicitly identified by the organisation or the researcher.
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