40 results about "Reliability criterion" patented technology

A system is provided that is configured to be transported, carried or worn by a user, such as a portable personal training device or sports watch. The system comprises a global navigation satellite system (GNSS) receiver arranged to obtain the location and / or speed of the user and a pedometer for counting steps made by the user. Data from the GNSS receiver is used to calibrate the pedometer each time the user is determined to travel a distance greater than a predefined distance value during a period of time in which signals obtained by the GNSS receiver meet the one or more accuracy and / or reliability criteria.

An embodiment of a method of designing a storage system begins with a step of assigning decision variables to a range of candidate storage systems. Each of the decision variables identifies a single candidate storage system. The method concludes with a step of employing the decision variables in a mathematical program to determine which of the candidate storage systems meets availability and reliability criteria and incurs a near minimal projected cost.

Disclosed are improved methods, systems, and computer program products for predicting performance, manufacturability, and reliability (PMR) using concurrent model analyses for electronic designs. Various embodiments of the present invention disclose a method for predicting PMR with concurrent process model analysis in which a method with concurrent model(s) generate a design for the one or more layers in the electronic circuit. The method then analyzes the impact of the processes or techniques for feature geometric characteristic predictions or PMR evaluations, based upon the concurrent models. Results may be reported to the users, or the method may modify the designs to accommodate the variations and determines one or more parameters based upon the concurrent models. One embodiment determines the impact of concurrent model on one or more of performance, manufacturability, and reliability criteria.

An apparatus for gathering information about surroundings of a vehicle includes: a vehicle sensor data gathering block configured to gather first information about surroundings of the vehicle from one or more sensors mounted on the vehicle; a roadside equipment data gathering block configured to gather second information about surroundings of the vehicle from a roadside communication device installed on a driving infrastructure; and a data integration block configured to classify the first information about surroundings and the second information about surroundings for predefined data types and integrate and manage the classified information about surroundings based on a preset reliability criterion.

The invention relates to the field of video image processing, in particular to an interpolation frame generating method applied to up-conversion of a video frame rate. Specific to the problems that certain wrong motion vectors are produced and that local errors can cause sharp drop of the interpolation frame quality in the conventional block matching motion estimation algorithm, the method has the characteristic of low error sensitivity degree to motion vectors, so that high robustness is achieved. The method comprises the following steps: (1) estimating a motion vector field in a rough to fine manner by adopting a multi-resolution block matching algorithm; (2) judging the reliability of motion vectors according to a reliability criterion; (3) increasing the resolution of the motion vector field, further determining the initial positions of sub-blocks split from unreliable blocks with a candidate vector, and performing block matching research in a small area; (4) projecting blocks in an input image onto an interpolation frame in a motion compensating form, recording a corresponding relation between pixels in the interpolation frame and pixels in an input frame by using a statistical chart, marking non-corresponding pixels, and weighing and filtering by using a multi-candidate time domain to calculate the values of the pixels.

An apparatus for gathering information about surroundings of a vehicle includes: a vehicle sensor data gathering block configured to gather first information about surroundings of the vehicle from one or more sensors mounted on the vehicle; a roadside equipment data gathering block configured to gather second information about surroundings of the vehicle from a roadside communication device installed on a driving infrastructure; and a data integration block configured to classify the first information about surroundings and the second information about surroundings for predefined data types and integrate and manage the classified information about surroundings based on a preset reliability criterion.

A satellite communication system between a source and a destination over multiple satellite communications paths including first identifying the link performance established in multiple spectrums, performing a link comparison among the multiple spectrums (for example C-, Ku-, or Ka-Band) in order to determine a spectrum link that provides the highest throughput within an acceptable reliability criteria, and switching among the multiple spectrum links to provide that determined spectrum link between the source and the destination.

The invention discloses a cloud-theory-based power transformer insulation state evaluation method and belongs to the technical field of power transformer fault diagnosis. According to the method, an insulation state index system of a transformer is established, and a cloud-model-based insulation state evaluation method is provided for judging the fault type of the transformer according to the definition of the relative deterioration degree on the basis of grade division of the insulation state and the dynamic adjustment of index weights. By constructing a membership cloud model, the subjectivity and randomness of artificial determination of a membership function are reduced, and a reliability criterion is introduced to determine the insulation state of the transformer, so that a corresponding state maintenance strategy is obtained.

The present invention employs hierarchical modulation to simultaneously transmit information on different modulation layers using a carrier RF signal. Initially, first data to be transmitted is assigned to a first modulation layer and second data is assigned to a second modulation layer. In one embodiment of the present invention, the first and second data are assigned based on reliability criteria. The first and second modulation layers are hierarchical modulation layers of the carrier RF signal. Once assigned, the first data is transmitted using the first modulation layer of the carrier RF signal and the second data is transmitted using the second modulation layer of the carrier RF signal. In one embodiment of the present invention, information may be transmitted to one end user using one modulation layer, and information may be transmitted to a different end user using a different modulation layer.

The present invention relates a method and a decoder for decoding codewords, the decoding being performed as message passing on a graph representation of the code, e.g. on low density parity-check (LDPC) code, wherein for each non-zero entry in a parity check matrix, the message matrix elements of a first message matrix are initialized with data obtained from a demodulator, and the elements of a second message matrix are determined based on message matrix elements of said first message matrix. Further, a decoded codeword is reconstructed based on the data obtained from the demodulator and the matrix elements of the second matrix. Moreover the present invention relates to and to a communication system, a mobile terminal and a base station comprising the decoder. To reduce the influence of wrong information the decoding method uses subset of matrix elements from said first / second matrix for determining a matrix element of said second / first matrix, wherein the matrix elements of said subset fulfill a reliability criterion.

The invention provides a multi-path routing algorithm based on energy sensing reliability, which comprises the following steps: judging the reliability of links at first to select a link for data transmission, and collecting and promptly updating cost information of the path; forming a set of paths towards a target node, calculating the predicted function value for cost balance of the paths, and arranging the paths in an ascending order; selecting paths with disjoining nodes from a set of the paths; and utilizing the predicted function value to selecte an optimal path which satisfies the reliability criteria and leads to the target node. The algorithm guarantees the routing stability and reliability, reduces the energy consumption of the network, represents a comprehensive solution to the problem of criteria for sequencing path parameters, and has high practicability in the high-mobility wireless independent network environment.

An apparatus comprises a depth map source (109) providing a depth map for an image and a confidence map source (111) providing a confidence map with confidence values for pixels of the depth map. The confidence values designate the pixels as confident or non-confident pixels reflecting whether the depth value meets a reliability criterion or not. A depth modifier (113) performs a depth modification operation which modifies depth values for pixels of the depth map. A modified depth value for a first pixel is determined as a current depth value for the first pixel if this is designated as a confident pixel or if there are no confident pixels within a neighborhood set of pixels, and otherwise the modified value is determined as the maximum of the current depth value and a depth value determined as a function of depth values of pixels within the neighborhood set being designated as confident pixels.

The invention discloses a method for obtaining multiple-wind farm capacity credit based on a Copula function. The method comprises converting a wind speed time sequence into a wind farm power output time sequence by considering the wake effects of wind farms, performing state merging on the sequence according to numerical values and then performing nonlinear fitting to obtain the edge distribution of the power outputs of the individual wind farms, descripting the correlativity of the power outputs of the individual wind farms by selecting a Clayton Copula function for describing lower fat tail characteristics, performing parameter estimation on the selected Copula function by use of a two-stage maximum likelihood method according to the historical power output data of the wind farms to obtain the related parameters of multiple-wind farm power output joint probability distribution, making the multiple-wind farm power output joint probability distribution of the Clayton Copula function equivalent to a multi-state units which are integrated with a power generation system, and obtaining the wind farm capacity credit by use of chord length iteration based on an equal reliability criterion. The method for obtaining the multiple-wind farm capacity credit based on the Copula function is capable of assessing the significance of wind power generation in the aspects such as system reliability, economic efficiency and environmental pollution reduction quickly and accurately in a better way.

A tool for validation of a system for monitoring at least one piece of equipment in an aircraft engine, also comprising a computer configured to: collect observation data related to the equipment, calculate a current value of at least one quality indicator on a current quantity of observation data, estimate the probability that the current value of the quality indicator reaches a predetermined reliability criterion, thus forming a probabilistic reliability law, and estimate a minimum quantity of observation data from the probabilistic reliability law, starting from which the value of the quality indicator reaches a predetermined reliability criterion with a probability exceeding a predetermined value.

The present invention relates to a method and a decoder for decoding codewords generated in an encoder using a set of parity equations presentable as a parity check matrix, wherein for each non-zero entry in a parity check matrix, the message matrix elements of a first message matrix are initialized with data obtained from a demodulator, and the elements of a second message matrix are determined based on message matrix elements of said first message matrix. The method and the decoder rely on a graph-based representation of codes, e.g. low-density parity-check (LDPC) codes, where the decoding can be understood as message passing in a factor graph. Further, a decoded codeword is reconstructed based on the data obtained from the demodulator and the matrix elements of the second matrix. Moreover the present invention relates to a decoder as well as to a communication system, a mobile terminal and a base station comprising the decoder. To reduce the influence of wrong information the decoding method uses subset of matrix elements from said first / second matrix for determining a matrix element of said second / first matrix, wherein the matrix elements of said subset fulfill a reliability criterion.

A method and apparatus for processing demodulated data comprising received symbol data is disclosed. A decoder is used to compute estimated symbols and corresponding reliability metrics. The reliability metrics are transformed into reliability weights. Optionally, residuals relating to the difference between the received symbol data and the estimated symbols are computed. Output data are generated comprising any combination of the following: estimated symbols, reliability weights, residuals, and received symbol data. The residuals may be weighted by the reliability metrics and used by demodulation or error compensation loops to instantaneously reduce or increase the bandwidth of these loops.

The invention discloses a sensitivity analysis-based flexible AC-DC hybrid power grid reliability improvement method and belongs to the technical field of reliability evaluation for power systems. Themethod comprises the following steps of firstly, generating a reliability block diagram in two working modes of a DC power grid and an AC-DC hybrid power grid for the topological structure and the function analysis of the flexible AC-DC hybrid power grid; in combination with different reliability criteria, calculating the reliability index of a system; judging weak elements in the system throughthe sensitivity analysis of the reliability index. On the above basis, the reliability of weak elements in the system is analyzed in detail, and the sensitivity of a weak element forming part is analyzed by a perturbation method. In combination with the economic analysis, a component part for improving the reliability of elements is determined. Finally, a key element and a modification suggestionfor improving the reliability level of the system are finally determined. According to the invention, the method can be applied to the planning and operating stages of the power grid for analyzing theweak link of the system. The reliability level of the power grid is improved, and the later-stage upgrading and transforming process of the power grid can be guided. The method has important significance.

Low complexity architecture for syndrome-based check node, SB- CN, processing in Extended Min-Sum, EMS, decoders for Non-Binary LDPC, NB-LDPC, codes using the principle of pre-sorting the variable messages based on a reliability criteria. Embodiments of the invention provide a check node processing unit (25) configured to determine at least one check node message to decode a signal encoded using aNB-LDPC code, the check node processing unit comprising: a data link to one or more message presorting units (24) configured to determine permuted variable node messages by applying one or more permutations to at least three variable node messages generated by one or more variable node processing units (23); a syndrome calculation unit (26) configured to determine a set of syndromes from the at least three permuted variable node messages, a syndrome comprising binary values; a decorrelation and permutation unit (27) configured, for each check node message of a given index, to: determine a permuted index by applying to said given index the inverse of the one or more permutations; select at least one valid syndrome in the set of syndromes, a valid syndrome comprising a binary value associated with said permuted index equal to a given value; determine, at least one candidate check node component from said at least one valid syndrome; a selection unit (28) configured to determine at least one check node message from said at least one candidate check node component.

A wireless device detects a synchronization signal by obtaining (210), from a received signal, a sequence of samples, and calculating (220) a differentially decoded sequence from the obtained sequenceof samples. The wireless device correlates (230) the calculated differentially decoded sequence with a first reference sequence corresponding to the synchronization signal, at each of a plurality oftime offsets, and identifies which of the plurality of time offsets results in a largest correlation result. In response to determining (240) that the largest correlation result does not meet a predetermined reliability criterion, the wireless device correlates (250) the obtained sequence of samples with a second reference sequence, at each of a plurality of time and frequency offsets, and identifies which combination of time offset and frequency offset results in a largest correlation result. The first reference sequence comprises a differentially decoded version of the second reference sequence.

In relation to a current image from a sequence of images captured by an image sensor, in a first step, a temporary motion vector is determined as a function of reference data comprising a preceding image and a motion vector associated to the preceding image. Then, in a second step, if the temporary motion vector does not satisfy a reliability criterion, the first step is repeated in relation to a following image, on the basis of the same reference data. Otherwise, the temporary motion vector is associated with the current image.

The present invention relates to a device (102b,104b) for generating a polar code N of length N and dimension K on the basis of a transformation matrix G N of size N*N, wherein the transformation matrix G N is based on a first matrix G N r of size N r x N r , and on a second matrix G Nd of size N d x N d , wherein N=Nr.Nd, and wherein the polar code xN is given by xN=uN.GN, wherein uN=(u0,...,uN-1)is a vector of size N, ui ,i=0,... N 1, corresponding to an information bit if i belongs to I, I being a set of K information bit indices, and ui=0, if i belongs to F, F being a set of N K frozen bit indices. The device (102b,104b) comprises a processor (102c,104c) configured to generate a reliability vector v GNr=[v1,... v Nr ], wherein v i represents a reliability of an i-th input bit of a code generated by the first matrix GNr, generate a distance spectrum vector d GNd=[d1,..., dNd ] of a code generated by the second matrix G Nd , wherein d j represents a minimum distance of the code generated by the second matrix GNd of dimension j, determine the set of K information bit indices I on the basis of the reliability vector v GNr and of the distance spectrum vector dGN, and generate thepolar code c N on the basis of the set of K information bit indices I.

An apparatus comprises a depth map source (109) providing a depth map for an image and a confidence map source (111) providing a confidence map with confidence values for pixels of the depth map. The confidence values designate the pixels as confident or non-confident pixels reflecting whether the depth value meets a reliability criterion or not. A depth modifier (113) performs a depth modification operation which modifies depth values for pixels of the depth map. A modified depth value for a first pixel is determined as a current depth value for the first pixel if this is designated as a confident pixel or if there are no confident pixels within a neighborhood set of pixels, and otherwise the modified value is determined as the maximum of the current depth value and a depth value determined as a function of depth values of pixels within the neighborhood set being designated as confident pixels.

A cellular communications system uses FCS (fast cell switching) for forward communications links, for communicating data from respective cells or sectors to a mobile terminal, in response to FCS requests by the terminal on a reverse communications link. An FCS rate, or rate of said requests, is varied in dependence upon a C / I reliability criterion, which represents a reliability with which C / I is determined and predicted by the mobile terminal, for example being either of two selected rates depending upon a comparison of the criterion with a threshold. The criterion can be, for example, a determined speed of the mobile terminal, or an averaged probability that a C / I prediction error is less than a predetermined amount.

The invention provides a mixed receiver and a relative check method based on reliability rule, wherein the method comprises that 1, a simple receiver receives signal and checks the initial evaluationvalue x of an emitted signal, 2, setting a judgment threshold value Th, when the initial evaluation value meets ||y-Hx||2 / sigma2<Th, while y, H, sigma2 are respectively a receiving signal, a channel matrix and a receiver noise energy, using the initial evaluation value as the final evaluation value of the emitted signal to be output, 3, if the initial evaluation value not meets ||y-Hx||2 / sigma2<Th, inputting the received signal to a complex receiver to be checked, to obtain and output a final evaluation value. The invention can be used in MIMO system, which can use simple receiver to replace complex receiver to check part of emitted signal, without property loss or little property loss, to effectively reduce receiver complexity.

A reliability modeling analysis method for a complex constellation system comprises the following steps: (1) determining a reliability criterion of the constellation system according to task requirements of the constellation system; (2) selecting one constellation configuration from a plurality of constellation configurations; (3) for the selected constellation configuration, determining a backupsatellite configuration scheme of the constellation system, and establishing a reliability model of the constellation system according to the constellation system task simulation model and the reliability criterion; (4) repeating the step (3) to sequentially establish a constellation system reliability model of each constellation configuration; and (5) utilizing the constellation system reliability model of each constellation configuration to obtain a change curve of the constellation reliability along with the reliability of a single satellite, and determining the constellation configurationwith the optimal system reliability according to the change curve. Aiming at the condition that a reliability model of the complex constellation system cannot be established by using a traditional reliability block diagram method, the reliability modeling problem of the complex constellation system is solved.

The invention provides a multi-path routing algorithm based on energy sensing reliability, which comprises the following steps: judging the reliability of links at first to select a link for data transmission, and collecting and promptly updating cost information of the path; forming a set of paths towards a target node, calculating the predicted function value for cost balance of the paths, and arranging the paths in an ascending order; selecting paths with disjoining nodes from a set of the paths; and utilizing the predicted function value to selecte an optimal path which satisfies the reliability criteria and leads to the target node. The algorithm guarantees the routing stability and reliability, reduces the energy consumption of the network, represents a comprehensive solution to theproblem of criteria for sequencing path parameters, and has high practicability in the high-mobility wireless independent network environment.

The invention relates to the field of video image processing, in particular to an interpolation frame generating method applied to up-conversion of a video frame rate. Specific to the problems that certain wrong motion vectors are produced and that local errors can cause sharp drop of the interpolation frame quality in the conventional block matching motion estimation algorithm, the method has the characteristic of low error sensitivity degree to motion vectors, so that high robustness is achieved. The method comprises the following steps: (1) estimating a motion vector field in a rough to fine manner by adopting a multi-resolution block matching algorithm; (2) judging the reliability of motion vectors according to a reliability criterion; (3) increasing the resolution of the motion vector field, further determining the initial positions of sub-blocks split from unreliable blocks with a candidate vector, and performing block matching research in a small area; (4) projecting blocks in an input image onto an interpolation frame in a motion compensating form, recording a corresponding relation between pixels in the interpolation frame and pixels in an input frame by using a statistical chart, marking non-corresponding pixels, and weighing and filtering by using a multi-candidate time domain to calculate the values of the pixels.