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348 results about "Target weight" patented technology

Down-going wave beam forming method and device

The invention discloses a down-going wave beam forming method and device. The down-going wave beam forming method comprises the steps of obtaining a first weighted vector and a second weighted vector and conducting expansion on the first weighted vector according to the similarity between the second weighted vector and the first weighted vector so as to obtain a target weighted vector which meets the requirements for multiple-antenna down-going wave beam forming. The step of obtaining the first weighted vector further comprises the processes that an upstream channel is estimated according to detection reference signals sent by a terminal, and the first weighted vector is obtained by the utilization of the reciprocity of the upstream channel and a downstream channel. The step of obtaining the second weighted vector further comprises the processes that the terminal sends channel state information reference signals so that the terminal can feed back a precoding matrix index number determined according to the channel state reference signals; the precoding matrix index number fed back by the terminal is received, the second weighted vector is determined according to the index number, and the second weighted vector is a precoding matrix corresponding to the precoding matrix index number. Through weighted vector expansion, down-going wave beam forming weighted vectors applicable to multiple antennas are obtained.
Owner:WUHAN HONGXIN TELECOMM TECH CO LTD

Multi-process scheme planning method based on combination weighting method

The invention discloses a multi-process scheme planning method based on a combination weighting method. The multi-process scheme planning method comprises the following steps: analyzing various factors influencing the quality of a process scheme, and establishing two layers of evaluating systems; carrying out standardizing treatment on evaluating index data by adopting a subjection function; respectively weighting evaluating indexes by adopting a fuzzy integrated evaluating method and a variation coefficient method based on process knowledge data; in combination with the weighting results of the fuzzy integrated evaluating method and the variation coefficient method, taking minimal sum of weight error squares as a target function, and calculating combination weight by adopting a Lagrangian multiplier method; based on the combination weight, in combination with a gray relative analysis method, according to the design of two layers of evaluating structures, establishing two layers of gray relative analysis models, and selecting an optimal process scheme by correlation degree of candidate process schemes obtained by calculating the models. According to the multi-process scheme planning method disclosed by the invention, the distribution deviation of optimized target weights is reduced, and the performability of the process scheme is improved.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Apparatus and method for correcting TDD intelligent antenna system

The invention discloses a correction method and a device of a time division duplex intelligent antenna system, the method comprises that: the initialization of a channel is carried out; the channel correction of the system is started, the correction of a power detection channel and a detection receiving channel is carried out according to the gains of the power detection channel and the detection receiving channel which are obtained under the current working point and the temperature; the gain calibration and the amplitude-phase consistency calibration of an uplink channel are carried out simultaneously at the protection time slot according to the real-time obtained gain of the detection receiving channel and a gain inequality of the detection channel and the detection receiving channel; the gain calibration and the amplitude-phase consistency calibration of a down transmit channel are carried out simultaneously at the downlink pilot time slot according to the obtained target weight value of the downlink transmit channel and the ganged gain regulating quantity of the downlink transmit channel. The invention can effectively solve the key correction problem in the intelligent antenna system, realize the corrections of the gain accuracy and the amplitude-phase consistency errors of the array channel, simplify the algorithm and have the high correction precision.
Owner:ZTE CORP

Apparatus and method for real time determination of density and related parameters in manufacturing processes

Methods and apparati for measuring entrained gas content. One of the disclosed apparatus embodiments includes a chamber and piping for process fluid, the piping including two different sectors each comprising a density and temperature gauge having a pressure gauge located upstream and a second pressure gauge located downstream, the two sectors being operatively joined together by a pressure-changing device. The pressure measurement feature may be incorporated into the combination density and temperature gauge, eliminating the need for separate pressure gauges. Data generated by this invention reduces measurement error caused by the dissolving or exsolving of gases with changes in pressure of a fluid, while providing instantaneous measurement, through apparatuses that measure system conditions at each of two pressure states within a very short period of time. For instance, in the context of continuously coating a substrate, the method of this invention comprises: a.) setting a quantitative target for weight-% of one or more solids, e.g. kaolin clay, calcium carbonate, titanium dioxide, or alumina trihydrate, to be coated onto a substrate such as a paper web; b.) continuously applying the solids to the substrate via a carrier fluid; c.) measuring the apparent density of the slurry; d.) determining the true density of the slurry; e.) calculating the weight-% of solids in the slurry as disclosed above; f.) comparing the calculated weight-% solids to the target weight-% solids; and, g.) if the calculated weight-% is greater or less than the target weight-%, lowering or raising the amount of solids applied in step b.). Many other method and apparatus embodiments are also disclosed.
Owner:APPVION OPERATIONS INC

Seed weighting system having functions of on-line counting and weight compensating and weighting method

The invention relates to a seed weighting system and a weighting method, in particular to a seed weighting system having functions of on-line counting and weight compensating and a weighting method. The weighting system comprises an industrial personal computer, a counting weighting scale, a sampler, a packaging scale, a packager and a selecting scale. The control part of the weighting system is partially networked through a local area network and comprises the counting weighting scale, the packaging scale and the selecting scale which have the function of networking. The industrial personal computer is used as the control center of the whole system to coordinate and control the devices in the system so as to sample, count, calculate the weight of each seed, modify the target weighting of the packaging scale and the selecting scale, regulate the control parameter and store the weighting data. The target weight of the packaging scale can be modified through online 'counting and weighting' and acquiring the relationship between the seed number and the weight in real time, thereby realizing the package based on seed number through the weighting method. The invention can solve the problem of singly weighting and standardize the number of each bag of packaged seed.
Owner:SHANGHAI YAMATO SCALE

Visual significance-based interference sensing and tracking algorithm

The invention discloses a visual significance-based interference sensing and tracking algorithm. The visual significance-based interference sensing and tracking algorithm comprises the steps of S1, inputting a video image; S2, representing the appearance model of a to-be-tracked target in the image by utilizing the characteristics of a gradient orientation histogram, and calculating to obtain a histogram disturbance model in the gradient direction; S3, calculating the output response and the context awareness correlation tracking response; S4, carrying out weighted fusion to obtain a target weighted response, adopting a position where the maximum response is located as the position of the to-be-tracked target, and estimating the target scale and the position change; S5, when the to-be-tracked target is shielded, calculating to obtain a visual saliency map, and estimating the position of the to-be-tracked target according to the position of a candidate target; S6, according to the condition of the to-be-tracked target, updating the appearance model and the disturbance model; S7, inputting the next frame of the image, and returning to the step S1. According to the algorithm, the problem in the prior art that the existing target tracking method is easily influenced by factors such as illumination change, low resolution, scale change, shielding, similar targets, noisy backgrounds and the like so as to cause the poor tracking effect can be solved.
Owner:CHANGSHA NORMAL UNIV

Bin gate for providing variable output flow rates

An assembly for controlling delivery of material from a bin opening includes a movable bin gate for closing the bin opening and providing a high flow rate of material when the movable gate is open, wherein a low flow aperture is formed in the bin gate to provide a low flow rate of material when the bin gate is positioned such that only the low flow aperture is open. A two-stage flow enhancer within the bin includes a first stage for impelling material in the direction of the low flow aperture and a second stage for impelling material to exit through the low flow aperture. A controller controls operation of the bin gate to adjust a flow rate of material from the bin opening. The controller may include a sensor for providing an actual weight value of material present in a receiving bin and a memory for storing a target weight value for the amount of material in the receiving bin, wherein the controller adjusts the position of the bin gate and the low flow aperture in response to the actual weight value and the target weight value. The bin gate may also be adjusted in response to one or more tolerance values defining proximity to the target weight value and/or in response to one or more threshold weight values, wherein the threshold weight values are less than the target weight value. A method for controlling delivery of material from a bin opening includes the steps of providing at the bin opening a movable bin gate with a low flow aperture and selectively positioning the bin gate using a single actuator to expose only the low flow aperture to the bin opening for material flow or to expose substantially all of the bin opening for material flow.
Owner:MIXER SYST

Comprehensive electromagnetic compatibility evaluation method for complicated electronic information system

InactiveCN102682221AReduce subjective uncertaintyComparableSpecial data processing applicationsOriginal dataTOPSIS
The invention belongs to the field of comprehensive electromagnetic compatibility evaluation, and particularly relates to a comprehensive electromagnetic compatibility evaluation method for a complicated electronic information system. The method is characterized by at least comprising the following steps of: 101, establishing an electromagnetic compatibility index system of a vehicle-mounted communication system; 102, acquiring original data of an index layer in the index system; 103, quantifying the original data of the index in the index layer; 104, acquiring an initial evaluation vector according to the quantified data corresponding to the indexes; 105, calculating a target weight vector for the index system according to an analytic network process (ANP) method; 106, performing performance concentration according to an improved TOPSIS method; and 107, analyzing an evaluation result. Positive and negative reference points are determined by a generalized reference point search method based on historical database sample statistics and replace ideal positive and negative points determined in a scheme to be evaluated by the conventional TOPSIS method; and furthermore, the close degree is calculated by a weighted euclidean distance, so that the problem that the evaluation result is reused is solved.
Owner:XIDIAN UNIV
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