67 results about "Independent vector" patented technology

Apparatus and methods are provided for creating resolution-independent vector display of Internet content to allow it to be scaled (zoomed) larger and smaller for better viewing or to fit any resolution or screen size. According to one embodiment, novel server processing of Web content is provided that converts Web content requested by a client to a scalable vector format, such as Simple Vector Format. The vector format enables the Web content to be rendered by the client such that the rendered display substantially retains an original page layout defined in mark-up language document(s) in which the Web content is stored. In one embodiment, a proxy server receives Web content requests from a client and translates the content from an original format into a scalable vector representation. The scalable vector representation is then sent to client, where it is scaled and/or offset, enabling users to zoom and/or pan the Web content.

Apparatus and methods are provided for creating resolution-independent vector display of Internet content to allow it to be scaled (zoomed) larger and smaller for better viewing or to fit any resolution or screen size. According to one embodiment, novel server processing of Web content is provided that converts Web content requested by a client to a scalable vector format, such as Simple Vector Format. The vector format enables the Web content to be rendered by the client such that the rendered display substantially retains an original page layout defined in mark-up language document(s) in which the Web content is stored. In one embodiment, a proxy server receives Web content requests from a client and translates the content from an original format into a scalable vector representation. The scalable vector representation is then sent to client, where it is scaled and/or offset, enabling users to zoom and/or pan the Web content.

The invention relates to an active phased array antenna adopting the passive loading way to control sidelobe level, which is characterized in that the array surface of the active phased array antenna is jointly constituted by active loading units and passive loading units, and the passive loading units are positioned on the periphery of the active loading units; each active loading unit channel is controlled by an independent vector modulator and a low-noise amplifier, and each vector modulator simultaneously controls the amplitude and the phase of a feed source, thereby further changing the amplitude and the phase of surface current of the antenna units, and finally controlling the scanning angel of a wave beam and inhibiting the sidelobe level of the wave beam, wherein the active phasedarray transmitting antenna comprises 64 radiating units, the excitation way through a coaxial connector is adopted, the scanning of the spatial wave beam is realized by changing the phase distribution of the antenna on the pore diameter, and the required wave beam shape is obtained by changing the amplitude of the surface current on each radiation unit. The mutual coupling among array elements isutilized, thereby reducing the sidelobe level of the antenna in the pitching direction by 5dB in comparison with square fully array caliber feed on the basis of reducing the cost of the feed source.

A processor and method for processing matrix data. The processor includes M independent vector register files which are adapted to collectively store a matrix of L data elements. Each data element has B binary bits. The matrix has N rows and M columns, and L=N*M. Each column has K subcolumns. N≧2, M≧2, K≧1, and B≧1. Each row and each subcolumn is addressable. The processor does not duplicatively store the L data elements. The matrix includes a set of arrays such that each array is a row or subcolumn of the matrix. The processor may execute an instruction that performs an operation on a first array of the set of arrays, such that the operation is performed with selectivity with respect to the data elements of the first array.

The invention belongs to the field of power engineering and provides a symmetrical obtaining method for nodal voltage sensitivity in an alternating-direct current parallel-serial power grid. In the symmetrical obtaining method, on the premise of obtaining an independent vector, a nodal voltage vector and a nodal charging power vector of the alternating-direct current parallel-serial power grid, aunified partial derivative formula is built for obtaining the voltage sensitivity of each node according to a relationship equation of the independent vector and the nodal voltage vector, and a function relationship expression of the nodal charging power vector with respect to the independent vector and the nodal voltage vector, so that the symmetrical obtaining for the voltage sensitivity of allnodes in the alternating-direct current parallel-serial power grid is achieved, thus the symmetrical obtaining method reflects an instigating action of a direct-current feed-in system to active powerand instigated performance to inactive power, and also reflects a purpose that the work of a balancing generator in the alternating-direct current parallel-serial power grid satisfies an objective law of a circuital law.

The invention provides a comprehensive electric energy quality estimation method based on an improved radar graph. All indexes are sequenced by using a weight value to be reflected to the map graph that vector-shaped regions are sequenced according to the sizes of areas; the index with the large weight has great influence on the whole graph image; mutual influences of the two indexes are greater than those of the indexes with smaller weight, so that the problem that a graph area and a perimeter are uncertain due to index sequencing is solved, and the influence of a sequencing result on an estimation result accords with an objective reality; diagonal lines of the vector-shaped regions are used as index shafts and each index corresponds to the independent vector-shaped region, so that the problem that two indexes share the same vector-shaped region is solved and the weight of the indexes can be objectively represented; estimation points of the index shafts are directly connected and the two indexes are combined by respectively utilizing respective half vector-shaped regions in estimation; the graph reflects the influences of the indexes on the whole estimation result; and the comprehensive electric energy quality estimation method further comprises the mutual effect of the indexes, can avoid splitting of the indexes and shows the mutual influences of the indexes.

The invention belongs to the technical field of radio-over-fiber communication systems, in particular to a 2x2 MIMO (Multiple Input Multiple Output) radio-over-fiber fusion method and system based on optical independent sideband (ISB) modulation of an I/Q (In-phase/Quadrature-phase) modulator. In the 2x2 MIMO radio-over-fiber fusion system, two paths of independent vector millimeter wave signals are generated at the same time through the optical ISB modulation based on the I/Q modulator. The use of optical polarization multiplexing and optical polarization diversity is avoided, so that a system framework is simplified greatly, and the system stability is enhanced. The system is suitable for MIMO type radio-over-fiber communications of different modulation formats, different Baud rates and different carrier frequency reuses.

The present invention provides a calculation method of a back-open two-pole current parameter under an asymmetric fault condition, and a problem that the back-open two-pole current parameter can not be obtained through calculation is obtained. The method comprises the steps of (1) obtaining each phase current which passes a circuit breaker before first-open phase crossing zero time t0 when a three-phase short circuit fault happens, (2) carrying out independent vector operation of an AC component and a DC component of the back-open two-pole current after the first-open phase crossing zero time t0, and obtaining corresponding expressions. (3) stacking the estimated AC component and the DC component, and obtaining the back-open two-pole current parameter. According to the method, the obtained back-open two-pole current expressions are suitable for a neutral point effective grounding system and a neutral point non-effective grounding system, after the vector calculation of the AC component and the DC component, the AC component in the vector diagram obtained by a symmetrical component method and the DC component limited by a boundary condition can be stacked, and near-open pole and back-open pole current calculation formulas can be obtained.

The invention discloses a method for testing motion available for real-time monitoring. Based on the analysis theory of an independent vector, a motion foreground and an environment background are taken as the main composition of a whole image; and corresponding data fusion is carried out on two observation vectors, and a mixing relationship between the vectors which are mutually independent in the statistical sense is adjusted so as to lead the motion foreground and the environment background to be linearly combined. Aiming at the interference of interframe random sampling noise, virtual motion is added into the observation vectors and the noise is filtered after the process of image reconstruction. Finally, an environment vector is separated from a motion vector by a matrix partitioning method to realize the test of the motion object and finally mark a tested object region into the image in a way of externally connected rectangle frame. The invention simultaneously discloses a device for testing motion. The invention can be applicable for the monitoring environment of complex colors; design implementation thereof uses the way of period processing to execute the real-time monitoring of the motion and self-adaptively locates the object region; and the invention is a general monitoring visual processing method.

The invention provides a characteristic vector based data transmission compression method and system. The method includes that according to a vector space matrix composed of operation condition parameters of a power station unit, a minimum independent vector set of the unit operation conditions is created by computing a matrix linearly-independent set in the vector space matrix; real-time data of the unit operation conditions are classified into a plurality of classes for encoding and storing by means of clustering and division of independent information sets, a characteristic vector based data compression model dictionary of the unit is created, and then the data compression model dictionary is published in source and target servers needing communication so as to realize source data encoding and target decoding after operation condition mode recognition. Therefore, massive real-time data of the power station unit can be transmitted efficiently and reliably under the condition of low bandwidth.

The invention belongs to the electrical engineering field and discloses a method for symmetrically acquiring loss power sensitivity from an AC-DC (alternating current-direct current) hybrid power system, and the method comprises the following steps of: acquiring an independent vector of the AC-DC hybrid power system according to the known power flow solvability of the system, infusing a relation equation among a power vector, an independent vector and a node voltage vector according to the relation equation between the node voltage vector and the independent vector to acquire the sensitivity of infusing the power vector into the node by the node voltage vector, according to the sensitivity and the known functional relationship of the node voltage vector related to the loss power vector of the AC-DC hybrid power system, and acquiring the sensitivity of infusing the power vector into the node by the loss power vector of the AC-DC hybrid power system so as to symmetrically acquire the loss power sensitivity, wherein the loss power sensitivity can show that the direct current feed-in system has the instigating effect to active power and the instigated effect to reactive power, and the generator connected with reference points meets the circuit law in the AC-DC hybrid power system.

The invention relates to a rated capacity test method of an active front end voltage-type alternating current-direct current-alternating current frequency converter. The method is technically featured by comprising the steps as follows: (1) accessing an active front-end rectifier AFER and an inverter INV of the frequency converter to a power grid to form a closed-loop testing circuit through a transformer unit, respectively; (2) building a test control system in an independent vector control manner of active power and reactive power; and (3) flexibly adjusting the magnitudes of the power and an output power factor of the frequency converter by adjusting related settings of the AFER and the IVN, carrying out reversible operation tests of rated capacity under different power factors, and testing rated capacity of the complete set of frequency converter and temperature rise of a power apparatus. The method, disclosed by the invention, has rational design. The reversible operation tests of the rated capacity are carried out under different power factors by adjusting output settings of the active front-end rectifier and the inverter as well as the output power magnitude and the power factor of the frequency converter, and the rated capacity of the complete set of frequency converter and the temperature rise of the power apparatus are accurately tested.

The invention discloses a power system transient stability simulation method based on network node numbering optimization. A sparse vector technology is widely applied to power system calculation. However, existing network node numbering methods applied to sparse vectors aim to achieve the purpose that the average forward and backward substitution calculation amount of all nodes is the smallest, and the characteristic that forward and backward substitution only needs to be conducted on active nodes during transient stability simulation is not taken into consideration. According to the power system transient stability simulation method, the characteristic that the sparse structure of an independent vector of a network algebraic equation and the sparser structure of a solution vector are identical and decided during transient stability simulation is fully considered, the network nodes are divided into active nodes and passive nodes, the out-degrees of the nodes, the number of active precursor nodes and the number of the precursor nodes are fully considered, the network nodes are numbered, under the condition that the number of newly increased elements of a factor table is small, the average path length of the active nodes is made the smallest, and no requirement for the path tree lengths of the passive nodes exists. By the adoption of the power system transient stability simulation method, the calculation amount of solving a differential algebra equation set during transient stability simulation of a power system can be remarkably reduced.

A residue generating circuit for an execution unit that supports vector operations includes an operand register and a residue generator coupled to the operand register. The residue generator includes a first residue generation tree coupled to a first section of the operand register and a second residue generation tree coupled to a second section of the operand register. The first residue generation tree is configured to generate a first residue for first data included in the first section of the operand register. The second residue generation tree is configured to generate a second residue for second data included in a second section of the operand register. The first section of the operand register includes a different number of register bits than the second section of the operand register. Configuring a residue-generation tree to be split into multiple residue generation trees facilitates residue checking multiple independent vector instruction operands within a full width dataflow in parallel or alternatively residue checking a full width operand of a standard instruction.

A locked reticulate pattern UV (ultraviolet) printing method includes following steps: 1) processing locked reticulate pattern data information, selecting a locked area, drawing a locked graph in the locked area by the aid of a professional cartographic software module, and manufacturing the locked graph into an independent vector file; selecting a channel to lock a graph needing to be locked; and respectively printing channels with locked information and channels without locked information into Postscript page description files, rasterizing the Postscript page description files and explaining the Postscript page description files into single-channel bitmap files; 2) realizing computerized direct platemaking, uploading the single-channel bitmap files to a computerized direct platemaking machine, and exposing and drying on a light-sensitive pre-coating section plate; 3), external coating; 4) UV printing; 5) solidifying; and 6) polishing. Reticulate pattern anti-fake information is inserted under the condition that appearances of products are not affected, troublesome procedures of traditional film publish are omitted, UV high-fidelity printing is adopted, and glossiness is good. In addition, fuel consumption and waste exhaust are relieved, and purposes of saving energy and protecting environments are achieved.

The invention discloses an under-sampled signal frequency estimation method and device based on pattern clustering and spectrum correction, The method comprises the following steps of: obtaining DFT spectrum by DFT with N points and Hanning window for L-channel undersampled signal sample sequence, performing spectrum and phase correction on the DFT spectrum based on ratio method, obtaining corrected parameter group composed of frequency, phase and amplitude, and obtaining vector composed of the corrected parameter combination; Selecting a desired peak index from a set of vectors for the firstpath independent vector of the m-th frequency component; According to the peak index of harmonic parameters, the pattern clustering is carried out, and the remainder after clustering is obtained. Frequency residue array is constructed by using residue, and it is brought into CRT model for reconstruction, and the estimated frequency value is obtained. The device comprises an analog-to-digital converter, a DSP chip, an output driver and a display module. The invention introduces a spectrum correction algorithm to improve the precision of frequency reconstruction, and uses pattern clustering to improve the robustness of the estimator to noise.

A computer-implemented method for numerical solution of a geometric programming problem is described, including the computer-implemented steps of: reformulating the geometric programming problem as an equivalent generalized geometric programming optimization problem with only linear constraints, and solving the equivalent generalized geometric programming optimization problem by vector processing, including determining by computer-implemented numerical computation a solution for an unconstrained objective function whose independent vector variable is the generalized geometric programming conjugate dual of a primal decision vector variable of the geometric programming problem, and includes a variable linear combination of fixed vectors enabling the vector processing. Also described are computer-readable storage devices, computer program products, and computer systems for such numerical solution methodology.

The invention relates to a multifunctional radar work module identifying method based on a prediction state expression model. The method includes a first step of establishing a PSR model of MFR, a second step of conducting PSR model training, using a string processing tool to pretreating trained radar character sequence S, calculating noise threshold and filtering noise, searching linear independent vectors, and finally extracting a core event set Q and boundary mark set L, and a third step of using the trained PSR model for MFR work module identification. In the method, the MFR work mode identifying problem is researched, a PSR model is used to replace normal HMM, and better expression capability for a dynamic system is provided, and the model is simpler. The effect of MFR work mode identification based on PSR model is better than that of a conventional HMM method. The method has promising application prospect, and makes radar operation strategy deduction, potential threat estimation and MFR behavior prediction become possible.