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47 results about "Continuous parameter" patented technology

A continuous parameter is a numeric parameter that can take any value in a specified interval. The parameter can be scalar- or matrix-valued. Typically, you use continuous parameters to create parametric models and to estimate or optimize tunable parameters in such models.

Post-Recording Data Analysis and Retrieval

When making digital data recordings using some form of computer or calculator, data is input in a variety of ways and stored on some form of electronic medium. During this process calculations and transformations are performed on the data to optimize it for storage. This invention involves designing the calculations in such a way that they include what is needed for each of many different processes, such as data compression, activity detection and object recognition. As the incoming data is subjected to these calculations and stored, information about each of the processes is extracted at the same time. Calculations for the different processes can be executed either serially on a single processor, or in parallel on multiple distributed processors. We refer to the extraction process as “synoptic decomposition”, and to the extracted information as “synoptic data”. The term “synoptic data” does not normally include the main body of original data. The synoptic data is created without any prior bias to specific interrogations that may be made, so it is unnecessary to input search criteria prior to making the recording. Nor does it depend upon the nature of the algorithms / calculations used to make the synoptic decomposition. The resulting data, comprising the (processed) original data together with the (processed) synoptic data, is then stored in a relational database. Alternatively, synoptic data of a simple form can be stored as part of the main data. After the recording is made, the synoptic data can be analyzed without the need to examine the main body of data. This analysis can be done very quickly because the bulk of the necessary calculations have already been done at the time of the original recording. Analyzing the synoptic data provides markers that can be used to access the relevant data from the main data recording if required. The nett effect of doing an analysis in this way is that a large amount of recorded digital data, that might take days or weeks to analyze by conventional means, can be analyzed in seconds or minutes. This invention also relates to a process for generating continuous parameterised families of wavelets. Many of the wavelets can be expressed exactly within 8-bit or 16-bit representations. This invention also relates to processes for using adaptive wavelets to extract information that is robust to variations in ambient conditions, and for performing data compression using locally adaptive quantisation and thresholding schemes, and for performing post recording analysis.
Owner:ASTRAGROUP AS

Autofocus method based on successive parameter adjustments for contrast optimization

A radar on a moving platform generates an initial synthetic aperture (SAR) image of a scene from a sequence of periodic pulse returns approximately motion compensated. The SAR image is formed from pixel intensities zn(x,y) within a x,y extent of the initial synthetic aperture image. Targets are selected from the initial synthetic aperture image using a sliding window, computing a first entropy for the selected targets, and sorting the targets using the first entropy to obtain a target list having target elements, then concatenating the target elements to form a data matrix compatible in the azimuth dimension with a Fast Fourier Transform.A phase correction for autofocus is iteratively computed and applied to the initial synthetic aperture image using an inner loop, a mid loop and an outer loop. The phase correction is expressed using an orthogonal polynomial having a plurality n consecutive terms an, a2 denoting a quadratic term, and aN denoting a last order term. The outer loop, using an L index, calculates an outer loop EL(a2) entropy for the quadratic term and an outer loop EL(aN) entropy for the last order term. Iterations within the outer loop continue until EL(a2)−EL(aN) is less than an outer loop tolerance.Similarly, the mid loop, and inner loop continue until the computation of their respective entropies meet a pre-set tolerance. The inner loop entropy uses a Golden Section search for computing the inner loop entropy.
Owner:RAYTHEON CO

Pre-rainfall optimal parameter based flood forecasting method

The present invention relates to a pre-rainfall optimal parameter based flood forecasting method, and belongs to the technical field of flood forecasting. The method comprises the following steps: collecting statistics of the amount of the pre-rainfall in a forecast area before the occurrence of all historical flood in the forecast area; dividing the historical flood into a flood season group and a non-flood season group, and constructing a flood forecasting model for the forecast area; carrying out single parameter calibration on each historical flood so as to obtain a set of parameters for each flood; carrying out continuous parameter calibration respectively on the flood in the flood season group and the non-flood season group so as to obtain two sets of parameters, and dividing each of the two sets of parameters into two types of parameters of high sensitivity and low sensitivity; monitoring and recording daily rainfall data in real time, and collecting statistics of the amount of the pre-rainfall of the rainfall; and calculating a close degree between the amount of the pre-rainfall of the rainfall and the amount of the pre-rainfall of the historical flood, and taking the minimum value of the close degree as the flood forecasting model established by using the objective factor index so as to carry out flood forecasting. According to the method disclosed by the present invention, the accuracy and practicability of the hydrological model applied in flood forecasting are improved.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES

Three-dimensional-coupling slip surface-controllable slope stability similar testing system

InactiveCN104007246AMeet the actual conditions of the projectSave materialEarth material testingExcavationsCouplingControl system
The invention relates to a three-dimensional-coupling slip surface-controllable slope stability similar testing system which comprises a water level control system, a slip surface control system, a surface displacement monitoring system, a deep displacement monitoring system, a slipping force compensation servo control system, an earthquake effect control system, a reinforcing scheme monitoring system, and a data acquisition system. The system can realize surface and deep displacement monitoring during slope excavation process, and search of slope instable slip surfaces, and can determine the influence of rock and soil or weak plane (structural plane) water content on slope stability, and the influence of earthquake effect on slope stability. The system can simultaneously study the coupling influence of factors influencing slope stability; testing conditions provided by the system better accord with actual engineering conditions; the system can realize study of influence of continuous parameter change on slope stability; no individual testing with different parameters is necessary, and no individual testing with different values of the same parameter is necessary; materials are saved greatly; the testing efficiency and testing precision are improved; and the testing results are more real and reliable.
Owner:HENAN POLYTECHNIC UNIV

Joint resource optimization method for multi-target position estimation in distributed MIMO radar system

The invention relates to a joint resource optimization method for multi-target position estimation in a distributed MIMO radar system. The joint resource optimization method comprises: a target is designated and a minimized maximum value of a multi-target position estimation error is used as a target function; under the circumstances that the total numbers of the transmitting and receiving array elements are limited and the transmitted power is given, a resource optimization model of combination of transmitting and receiving array element selection and power allocation is established; and on the basis of a heuristic search algorithm and a continuous parameter convex approximation algorithm, a resource joint allocation algorithm based on cycle minimization is proposed to solve a hybrid Boolean type joint optimization problem to obtain a joint resource allocation result. According to the invention, the energy relationship between system resources and tracking capabilities is analyzed quantitatively; compared with the array element number, the influence on the system performance by the transmitted power becomes obvious and the influence on the target tracking precision and number by the system resources is displayed, so that the computing load of the system is reduced, the good system performance is realized, and the overall multi-target tracking accuracy is improved. The joint resource optimization method has the great practical application value.
Owner:THE PLA INFORMATION ENG UNIV

Shale gas probability area selecting method

InactiveCN105138848ASolve the probability value problemThe parameters of the evaluation constituency are reasonableSpecial data processing applicationsOperabilitySingle measure
The invention discloses a shale gas probability area selecting method. The method includes the following steps that continuous parameters and discrete parameters of shale gas selecting areas are determined; according to changes of the single parameters in an evaluation area, a planar information graph of a uniform proportional scale is generated; conditional probability valuing is performed according to geological implication, continuous parameter values under different conditional probabilities are obtained through a proportion occupying algorithm, and discrete parameter values corresponding to different conditional probabilities are obtained through normal distribution model integrals; single parameter values under the same conditional probability serve as a shale gas selecting area combination standard under the probability, the beneficial range under the conditional probability is delineated on the planar information graph of the single parameters, and the superposed area of the planar beneficial ranges of the single parameters is the shale gas probability area selecting result under the conditional probability. The method is high in operability and reliability and capable of reasonably implementing shale gas probability area selecting, and reliable and effective quantitative area selection is achieved.
Owner:CHINA UNIV OF GEOSCIENCES (BEIJING)

Voltage stabilization analyzing method and device for power system of wind power plant

The embodiment of the invention provides a voltage stabilization analyzing method and device for a power system of a wind power plant. The method comprises: selecting continuous parameters to form a new equation, expanding the flow equation of the power system by using the new equation, correcting the expanded flow equation of the power system to obtain corrected flow equation of the power system, wherein in the corrected flow equation of the power system, the corrected flow jacobian matrix is the flow jacobian matrix generated when the node in the power system with maximum reduced voltage amplitude value is processed as the node with appointed injection power and voltage amplitude value; using a Newton-Raphson algorithm iteration to solve the corrected flow equation of the power system so as to obtain a prediction direction; determining a predication point according to the prediction direction and a preset step size; and analyzing the voltage stabilization condition of the power system of the wind power plant according to the prediction point. According to the scheme of the invention, the convergence of the continuous flow calculation nearby the critical point is greatly improved; and the reliability of the algorithm is greatly improved.
Owner:ELECTRIC POWER RES INST STATE GRID JIBEI ELECTRIC POWER COMPANY +3

Flue gas emission prediction method and system and computer readable storage medium

The invention discloses a flue gas emission prediction method comprising the following steps: obtaining flue gas sample data collected by a flue gas data extraction tool, the flue gas sample data comprising to-be-detected flue gas emission index data, analog quantity data and switching value data, the analog quantity data being continuous parameter data of flue gas in the production process, the switching value data being continuous parameter data of flue gas in the production process, and wherein the switching value data is discrete parameter data of flue gas in the production process; inputting the flue gas sample data into a pre-constructed flue gas emission prediction network for model training to obtain a flue gas emission prediction model; and inputting to-be-detected flue gas test data into the flue gas emission prediction model, and predicting various flue gas emission indexes in the production process. The invention further discloses a flue gas emission prediction system and acomputer readable storage medium. Flue gas emission index prediction is carried out through the flue gas emission prediction model, so that timeliness and effectiveness of flue gas emission index prediction can be guaranteed, and material cost is reduced.
Owner:广东安博通信息科技有限公司

Method for optimizing cognitive radio system parameters in membrane structure

The invention relates to a method for optimizing cognitive radio system parameters in a membrane structure. According to the method, by means of a mixture quantum goose swarm method in the membrane structure, the minimized transmitting power, the minimized bit error rate and the maximized data rate of a cognitive radio system are optimal simultaneously. The method includes the steps that the membrane structure is determined, the quantum position and the speed are generated, the system parameters and the mixing positions correspond to each other in a one-to-one mode, the speed and the quantum position are updated, the system parameters are formed through mapping, a fitness value is calculated, an optimal local mixing position and an optimal global mixing position of each goose are updated, the optimal global mixing positions are updated, and the optimal global mixing positions traveled by all geese of the whole quantum goose swarm are mapped to the system parameters and output from a surface membrane. The optimization problem of the system parameters with mixed disperses and continuous parameters is solved, the mixture quantum goose swarm method in the membrane structure is designed to serve as a solving strategy, and the designed method has the advantages of being high in convergence precision and convergence speed.
Owner:HARBIN ENG UNIV

Image denoising method based on statistical local rank characteristics

The invention discloses an image denoising method based on statistical local rank characteristics. The image denoising method comprises the following steps: performing local rank transformation on the image under different parameter conditions by utilizing a local rank operator, thereby obtaining positive local rank transformation and negative local rank transformation of the image; adding the local rank transformation and negative local rank transformation to obtain statistical local rank characteristics with continuous parameter changes; taking the statistical local rank characteristics as constraint conditions on the basis of an image denoising method with sparse representation, and performing primary denoising on the image; and finally, performing secondary denoising on the image by controlling the difference of the statistical local rank characteristics between the images before and after denoising, and removing the image noise, thereby obtaining a final clear image. The method has the obvious effects that compared with the traditional denoising method based on sparse representation, the method has a better denoising effect, can acquire a denoised image with high quality, and further can effectively guarantee the reliability of subsequent image processing and analyzing.
Owner:上海厉鲨科技有限公司
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