Two novel adaptive distributed target detectors, the range frequency domain-Rao （RFD-Rao） and range frequency domain-Wald （RFD-Wald） tests are proposed in this work. The application methods for these tests conside...Two novel adaptive distributed target detectors, the range frequency domain-Rao （RFD-Rao） and range frequency domain-Wald （RFD-Wald） tests are proposed in this work. The application methods for these tests consider a partially homogeneous disturbance environment and a target range walking effect in a coherent processing interval （CPI）. The asymptotic performance of the detectors is analyzed, and the constant false alarm rate （CFAR） properties with respect to the clutter covariance matrix and power level are shown. The performances of the proposed adaptive detectors are assessed through Monte-Carlo simulations, and the results are presented to demonstrate the effectiveness of the proposed detection algorithms compared to those of similar existing detectors.展开更多
Petroleum geophysicists recognize that many parameters related to oil and gas reservoirs are predicted using seismic attribute data. However, how best to optimize the seismic attributes, predict the character of thin ...Petroleum geophysicists recognize that many parameters related to oil and gas reservoirs are predicted using seismic attribute data. However, how best to optimize the seismic attributes, predict the character of thin sandstone reservoirs, and enhance the reservoir description accuracy is an important goal for geologists and geophysicists. Based on the theory of main component analysis, we present a new optimization method, called constrained main component analysis. Modeling estimates and real application in an oilfield show that it can enhance reservoir prediction accuracy and has better applicability.展开更多
In 2012, 92 Administrative, Technical and Service Staff （ATS S） grievances （unresolved departmental conflicts） were referred to the Industrial Relations arm of the HR division of the UWI St Augustine Campus. Of th...In 2012, 92 Administrative, Technical and Service Staff （ATS S） grievances （unresolved departmental conflicts） were referred to the Industrial Relations arm of the HR division of the UWI St Augustine Campus. Of these trade disputes, 52 cases were ＂resolved＂ and 10 unresolved cases were referred to the Ministry of Labor. In 2009, 692 disputes from various organizations nationally were lodged at the Industrial Court of Trinidad and Tobago--781 in 2010, 778 in 2011 and at September 25th, 2012, 566 were filed （Swamber, 2012）. Vincent Cabera, president of the Banking, Insurance and General Workers Union, expressing his grave concern about these statistics cited inter alia, noted that ＂work stoppages that currently persist in society owed to the malfunctioning of the industrial relations system of the twin island＂. Legitimate members of the Recognized Majority Union （RMU）, who have within the past year at the Campus experienced unresolved conflicts at the departmental level that progressed to trade disputes will be eligible to participate and electronically administered a semi-structured questionnaire developed to determine the frequency and causes of unresolved conflict, their perceptions of its handling, as well as Form A of the Rahim Organizational Conflict Inventory II （ROCI-II） （Rahim, 1983） to classify the conflict management style of their Heads of departments.展开更多
基金Project（61771367） supported by the National Natural Science Foundation of China
文摘Two novel adaptive distributed target detectors, the range frequency domain-Rao （RFD-Rao） and range frequency domain-Wald （RFD-Wald） tests are proposed in this work. The application methods for these tests consider a partially homogeneous disturbance environment and a target range walking effect in a coherent processing interval （CPI）. The asymptotic performance of the detectors is analyzed, and the constant false alarm rate （CFAR） properties with respect to the clutter covariance matrix and power level are shown. The performances of the proposed adaptive detectors are assessed through Monte-Carlo simulations, and the results are presented to demonstrate the effectiveness of the proposed detection algorithms compared to those of similar existing detectors.
文摘Petroleum geophysicists recognize that many parameters related to oil and gas reservoirs are predicted using seismic attribute data. However, how best to optimize the seismic attributes, predict the character of thin sandstone reservoirs, and enhance the reservoir description accuracy is an important goal for geologists and geophysicists. Based on the theory of main component analysis, we present a new optimization method, called constrained main component analysis. Modeling estimates and real application in an oilfield show that it can enhance reservoir prediction accuracy and has better applicability.
文摘In 2012, 92 Administrative, Technical and Service Staff （ATS S） grievances （unresolved departmental conflicts） were referred to the Industrial Relations arm of the HR division of the UWI St Augustine Campus. Of these trade disputes, 52 cases were ＂resolved＂ and 10 unresolved cases were referred to the Ministry of Labor. In 2009, 692 disputes from various organizations nationally were lodged at the Industrial Court of Trinidad and Tobago--781 in 2010, 778 in 2011 and at September 25th, 2012, 566 were filed （Swamber, 2012）. Vincent Cabera, president of the Banking, Insurance and General Workers Union, expressing his grave concern about these statistics cited inter alia, noted that ＂work stoppages that currently persist in society owed to the malfunctioning of the industrial relations system of the twin island＂. Legitimate members of the Recognized Majority Union （RMU）, who have within the past year at the Campus experienced unresolved conflicts at the departmental level that progressed to trade disputes will be eligible to participate and electronically administered a semi-structured questionnaire developed to determine the frequency and causes of unresolved conflict, their perceptions of its handling, as well as Form A of the Rahim Organizational Conflict Inventory II （ROCI-II） （Rahim, 1983） to classify the conflict management style of their Heads of departments.
