Abstract: A system for detecting a moving object is provided. The system comprises a detector module having a first antenna and a second antenna separated by a baseline distance. The system also comprises a processing module configured to receive a first signal and a second signal from the first receiving antenna and the second receiving antenna, respectively. The processing module is further configured to determine a delay rate spectrum followed by a 2D FFT for the first signal and the second signal based on a cross-correlation function and an observation time period. The delay rate spectrum is then used to detect the moving object and determine its location in terms of latitude and longitude coordinates.

Abstract: A system for detecting a moving object is provided. The system comprises a detector module having a first antenna and a second antenna separated by a baseline distance. The system also comprises a processing module configured to receive a first signal and a second signal from the first receiving antenna and the second receiving antenna, respectively. The processing module is further configured to determine a delay rate spectrum followed by a 2D FFT for the first signal and the second signal based on a cross-correlation function and an observation time period. The delay rate spectrum is then used to detect the moving object and determine its location in terms of latitude and longitude coordinates.

Abstract: In some examples, a database system identifies a plurality of query portions in a database query that contain references to a first external table, the first external table being based on data from a remote data store coupled to the database system over a network. The database system creates a common spool portion that includes projections and selections of the plurality of query portions, and rewrites the plurality of query portions into rewritten query portions that refer to a spool containing an output of the common spool portion. For execution of the database query, the database system determines, as part of optimizer planning, whether to use the plurality of query portions or the common spool portion and the rewritten query portions.

Abstract: The present invention discloses a system and a method for detecting, localizing and categorizing radio frequency (RF) emitting sources. In operation presence of one or more RF sources are determined. Further, movement in the detected one or more RF sources is detected based on at least presence of spread power in spatial harmonics and visibility phase measurement. The frequencies of the radio waves at which the movement of one or more RF sources is detected are identified. A localization antenna subsystem is tuned to the identified frequencies one at a time to localize and identify the RF sources. Furthermore, the RF source is classified as an airborne source or ground-based source using radio interferometry imaging. Finally, on determination that the moving RF source is airborne, the interferometric images are further processed to confirm the type of airborne source.

Abstract: In some examples, a database system identifies a plurality of query portions in a database query that contain references to a first external table, the first external table being based on data from a remote data store coupled to the database system over a network. The database system creates a common spool portion that includes projections and selections of the plurality of query portions, and rewrites the plurality of query portions into rewritten query portions that refer to a spool containing an output of the common spool portion. For execution of the database query, the database system determines, as part of optimizer planning, whether to use the plurality of query portions or the common spool portion and the rewritten query portions.

Abstract: An apparatus, method and computer program product for query optimization in a Relational Database Management System (RDBMS), wherein an optimizer accesses a query expression repository (QER), so that the optimizer learns from previous versions of the queries to improve current and subsequent versions of the queries. The QER stores planning and execution information for QEs from the previous versions of the queries, wherein the QEs comprise table relations, intermediate results and/or final results of operations in the previous versions of the queries. The optimizer searches the QER for QEs from the query execution plans, and uses information from the QEs stored in the QER when optimizing the current and subsequent versions of the queries. The optimizer may also reuses results from the QEs stored in the QER.

Abstract: The present invention discloses a system and a method for detecting, localizing and categorizing radio frequency (RF) emitting sources. In operation presence of one or more RF sources are determined. Further, movement in the detected one or more RF sources is detected based on at least presence of spread power in spatial harmonics and visibility phase measurement. The frequencies of the radio waves at which the movement of one or more RF sources is detected are identified. A localization antenna subsystem is tuned to the identified frequencies one at a time to localize and identify the RF sources. Furthermore, the RF source is classified as an airborne source or ground-based source using radio interferometry imaging. Finally, on determination that the moving RF source is airborne, the interferometric images are further processed to confirm the type of airborne source.

Abstract: A system is disclosed for facilitating the handling of post transactional credit disputes in real-time via a variety of transactional environments and architectures. The system includes one or more workstations linked to a communication channel and one or more servers with at least one having capability of processing a plurality of image files. A party in dispute (such as a merchant) may browse their workstation for image files, choose the appropriate image files, and transmit the image files over the communication channel to a server for processing.