31 results about "Coherent information" patented technology

Various kinds of business and other information are tracked in real time. A coherent information visualization, for example as a time line, automatically, simultaneously presents relevant information to a user across multiple dimensions. Tools are provided that allow the user to establish and manipulate multi-dimensional linkages to develop insights into information gathered from multiple domains.

The invention discloses an adaptive high-precision phase estimation method for an interferometric SAR, comprising the following steps of: structuring optimum weight vectors in combination with a Wiener filter theory, performing an eigen decomposition on an optimum covariance matrix composed of the optimum weight vectors to obtain a signal subspace and a noise subspace, adequately utilizing a corresponding pixel pair and the coherent information of the neighboring pixels thereof to structure a space spectrum function according to the orthogonality of the signal subspace and the noise subspace in a MUSIC (multiple signal classification) algorithm, and precisely estimating the interferometric phase between the corresponding pixels via a spectral peak searching. The optimum weight is obtained by only a Wiener filter without the need to determine a registration error and the direction thereof, thereby solving the problem of large computational burden in the traditional InSAR (interferometric synthetic aperture radar) interferometric phase estimation. The adaptive high-precision phase estimation method for the interferometric SAR disclosed by the invention is adaptive to the field of accurate surface parameter inversion of InSAR complex scene and the like.

Method and apparatus for extracting coherent information from in-phase (I) and quadrature (Q) signals. In a form, signals from an antenna array are mixed to form a plurality of I and Q signals that combined to form respective complex vectors. Each vector is adjusted in phase and magnitude to compensate for variations in field signal patterns, summed with other vectors, spatially and temporally filtered, and processed using spectral analysis algorithms to extract coherent spatial information. The coherent spatial information may be used to detect the presence, number and activity of insects within a structure in the near field of the antenna.

A method of signal processing for use in reading data includes determining first and second waveforms, determining a cross-correlation of the first waveform with the second waveform, and determining a specific time delay corresponding to a maximum peak in the cross-correlation function. A filter is then applied based on the specific time value. The filter combines the first waveform and the second waveform so as to generate a filter output waveform including coherent information representing the data and including reduced incoherent noise.

A parametric representation of a multi-channel audio signal describes the spatial properties of the audio signal well with compact side information when a coherence information, describing the coherence between a first and a second channel, is derived within a hierarchical encoding process only for channel pairs including a first channel having only information of a left side with respect to a listening position and including a second channel having only information from a right side with respect to a listening position. As within the hierarchical process the multiple audio channels of the audio signal are downmixed iteratively into monophonic channels, one can pick the relevant parameters from an encoding step involving only channel pairs carrying the information needed to describe the spatial properties of the multi-channel audio signal.

The invention discloses a multipath utilization-based beam forming method. With the method adopted, the problem that multipath coherent signals cannot be effectively received in a low-altitude multipath environment in the prior art can be solved. The implementation process of the method includes the following steps that: an array radar acquires echo signal data, and solves a received signal covariance matrix Rxx; Toeplitz covariance matrix reconstruction is performed on the received signal covariance matrix, so that a new covariance matrix R is obtained; eigenvalue decomposition is performed on the reconstructed variance matrix, so that a noise subspace EN is obtained; a spatial spectral function S(theta) is formed according to the noise subspace; an angle corresponding to the peak value point of a spectral peak is found according to the spatial spectral function, namely the angle of a target is estimated; and with the estimated target angle adopted as a beam direction, beamforming isperformed. According to the method of the invention, with the estimated target angle adopted as the beam direction, beamforming is performed, and therefore, the multipath coherent information can be effectively utilized to improve the signal multi-noise ratio of echo signals. The method can be used for the effective reception of multipath coherent signals in a low-altitude multipath environment.

An apparatus for displaying information in a motor vehicle, has a first display device which has a display area which is arranged in a dashboard of the motor vehicle. The apparatus also has a second display device for displaying the information on a windshield of the motor vehicle, which has a projection device. The second display device is arranged with respect to the first display device, and the two display devices are connected to a common control device, in such a way that coherent information, which continues from the first display device to the second display device, can be displayed on the two display devices.

The invention discloses an MIMO radar multi-measurement vector DOA estimation method based on iterative near-end projection. The method comprises the following steps: converting high-dimensional echodata into a low-dimensional space to reduce the spatial dimension, performing singular value decomposition on the data subjected to dimension reduction, extracting a signal subspace to reduce the timedomain dimension, representing the non-convex non-smooth sparse optimization problem in the MIMO radar multi-measurement vector DOA estimation by using a near-end function optimization model, and then obtaining a near-end operator through an extrapolation step and an SCAD function in the iterative process to solve the optimization problem. According to the invention, the DOA estimation performance of the coherent information source under the conditions of low snapshot and low signal-to-noise ratio is superior to that of the existing algorithm.

What is new in this invention, it is the complete automation of the remote marking process. It is completely computer controlled and made possible by laser printer type marking / pointer equipment. Also, completely new is the concept of embedding digital information into a laser beam or other coherent information vector and attaching this way data / information to any object or place. New is the idea of using a discrete information vector not only as a beacon but also as a selector for the marking of more than one target objects. New is the idea of completely software controlled computerized digital marking of places or objects for closing motion control loops. No on-site human operators / soldiers needed. No position sensors needed anymore, nothing is bolted down, easy to reconfigure any environment. The invention is a major step in robotics and controls, improving considerably the eye-hand coordination of robots, making fully possible the action of the digital world on the real / physical world. A novel method and system is provided for simultaneous, non-invasive and non-contact marking for processing of targeted objects. The viewing, selection, marking, processing and feed-back is simultaneous and computerized.

A plurality of kinds of information relating to articles are stored in a manufacture-coherent information data base (20) by being related, so as to specify for each article a group of information relating to each article. A first code generating section (43) generates for each article a first code that indicates contents inherent to the article by using a part of the group of information specified for each article. A second code generating section (44) generates for each article a second code that includes information, which is of contents inherent to each article in the group of information and not included in the first code. A two-dimensional code generating section (45) generates an optical information code (two-dimensional code) that indicates the first code, and an identification code generating section (46) performs prescribed conversion processing to the second code to create character string data (identification code). A print control section (47) executes marking processing to mark the generated optical information code and the character string data on the article or to the object attached to the article.

The invention discloses a two-dimensional dynamic direction finding method for continuous quantum water evaporation in an impact noise environment, and belongs to the field of array signal processing.According to the method, a circular array infinite norm maximum likelihood equation designed according to a uniform circular array azimuth angle and a pitch angle two-dimensional dynamic direction finding problem is solved in a search region by utilizing a continuous quantum water evaporation calculation method, and the calculation amount is reduced by gradually narrowing the search interval; meanwhile, according to a water evaporation calculation method designed according to the quantum coding and the simulated quantum evolutionary equation, the convergence speed of the algorithm can be accelerated, the optimal two-dimensional wave arrival direction is quickly obtained, and the tracking precision of the dynamic wave direction in an impact noise environment is improved. According to the method, the searching speed is high, and the non-coherent signal source dynamic estimation in the two-dimensional arrival direction can be achieved, and the dynamic estimation of the coherent information source in the two-dimensional wave arrival direction can be realized, so that the method not only is suitable for a gaussian noise environment but also can be applied to an impact noise environment, and is wide in application prospect.

What is new in this invention, it is the complete automation of the remote marking process. It is completely computer controlled and made possible by laser printer type marking / pointer equipment. Also, completely new is the concept of embedding digital information into a laser beam or other coherent information vector and attaching this way data / information to any object or place. New is the idea of using a discrete information vector not only as a beacon but also as a selector for the marking of more than one target objects. New is the idea of completely software controlled computerized digital marking of places or objects for closing motion control loops. No on-site human operators / soldiers needed. No position sensors needed anymore, nothing is bolted down, easy to reconfigure any environment. The invention is a major step in robotics and controls, improving considerably the eye-hand coordination of robots, making fully possible the action of the digital world on the real / physical world.

This invention relates to a message send / receive method realizing routing and bridge-connecting functions under an internet protocol setting bridge-connection module and bridge-connection port on a router to set up a common Ethernet address and IP address for it. When receiving message via bridge-connection port, the message is transferred to the bridge-connmection or IP module for sending or discarding. When sending the message, the related information on the router of sending message is compared with coherent information in the message or duplicated to be sent by the bridge-connection module. This invention method enables inter-bridge connection access in bridge-connection network, and inter-communication of IP protocols with non bridge-connection network.

The invention discloses an answering card capable of detecting the number of answering cards and a sorting order conveniently and a detection method thereof. The answering card comprises a substrate; an answering zone is printed on the substrate; and seat zones that are arranged into one row or one column are printed at an external zone of the answering zone. The method includes: step one, an examinee fills in corresponding selected zones among seat zones according to the seat number during examination; step two, after the answering card is received, arrangement is carried out based on the seat number; step three, one side, printed with the seat zones, of the answering card is spread in a uniform stepped mode, so that each seat zone can be displayed; and step four, whether the arrangement is correct is determined according to a situation whether the filled selected zone shapes in the seat zones are coherent information points. When an invigilator carries out order sorting and number checking after examination completion, the manpower and material resources are substantially reduced because counting and checking one by one that are needed in the prior art are not required; the error occurrence is avoided; and the efficiency is substantially improved. The verification work of counting and sorting of test papers and answering cards can be completed efficiently.

Various kinds of business and other information are tracked in real time. A coherent information visualization, for example as a time line, automatically, simultaneously presents relevant information to a user across multiple dimensions. Tools are provided that allow the user to establish and manipulate multi-dimensional linkages to develop insights into information gathered from multiple domains.

The invention discloses an adaptive high-precision interferometric SAR phase estimation method, which combines Wiener filter theory to construct an optimal weighted vector, and obtains signal subspace and noise subspace by eigendecomposing the optimal covariance matrix formed by it , make full use of the coherence information of the corresponding pixel pair and its adjacent pixels, and construct the spatial spectral function according to the orthogonality of the signal subspace and the noise subspace in the MUSIC algorithm, and accurately estimate the interference phase between corresponding pixels through spectral peak search. It does not need to determine the magnitude and direction of the registration error to obtain the optimal weight, but only uses the Wiener filter to obtain the optimal weight, thus solving the problem of large amount of computation in traditional InSAR interferometric phase estimation. The invention is applicable to the fields of accurate inversion of surface parameters of InSAR complex scenes and the like.

The invention provides a self-adaption apodization method based on phase coherent information. The method includes the steps of conducting Hilbert change on all routes of channel signals to obtain the phase information, obtaining a dynamic weighting value of each channel through a certain self-adaption processing method according to preliminary phase estimation and the deviation of the phase information of each channel, and conducting beam forming at last. To improve the robustness of the self-adaption processing method, a phase variance sensitive threshold and multiple geometrical mapping relation curves between a phase difference and the weighting values are introduced into the calculation process of the dynamic weighting values. According to the self-adaption apodization method, by means of internal phase diversities, received in the beam forming process, of data of the multiple channels, side lobe signals and grating lobe signals are restrained, meanwhile, the width of a main beam is reduced, and transverse resolving ability of images is improved.

The invention discloses an adaptive coherent beamforming method based on multipath information, which mainly solves the problem that multipath coherent signals can not be effectively received in a low-altitude multipath environment in the prior art. The method comprises steps: 1, in a narrow-band multipath environment, a radar generates transmitting signals, and array radar echo data are obtained;2, according to the echo data, an array covariance matrix is calculated; 3, the array covariance matrix is subjected to characteristic decomposition to obtain signal subspace and noise subspace; 4, based on the orthogonality of the signal subspace and the noise subspace, a multipath reflection coefficient is estimated; 5, the multipath reflection coefficient is compensated to obtain the optimal weighting vector; and 6, according to the optimal weighting vector, adaptive beamforming is obtained. In the method, adaptive beamforming is carried out through compensating the reflection coefficientto obtain the optimal weighting vector, multipath coherent information is used effectively, the signal-to-noise ratio of the echo signals is improved, and the method can be used to effectively receivethe multipath coherent signals in a multipath environment.

The invention discloses a complex coherent signal three-dimensional visualization method comprising a step 1) of reading a complex coherent signal pairs s1 and s2 to be visualized, and constructing acomplex coherent matrix C by second-order statistical averaging; a step 2) of based on the complex coherent matrix C constructed in the step 1), calculating a parameter c0 reflecting the power sum ofs1 and s2, a parameter [beta] describing the relative power difference of s1 and s2, and a complex coherence coefficient [gamma] between s1 and s2; a step 3) of based on the parameters c0, [beta] and[gamma] obtained in the step 2), further calculating parameters c1, c2 and c3 so as to constitute a coherent vector c together with the parameter c0; a step 4) of constructing a three-dimensional coherent sphere based on the coherent vector c obtained in the step 3) so as to visualize all degree of freedom information of the complex coherent signal. The complex coherent signal three-dimensional visualization method completely describes the power information and the coherent information of the complex coherent signal by expanding a traditional two-dimensional circular map into a three-dimensional coherent sphere.

The invention discloses a method and a device for regulating signals, which are capable of increasing the locating accuracy by increasing the stripping degree of carrier waves and spreading codes in the signals. The method comprises the steps of obtaining frequency mixing signals by carrying out frequency mixing on signals which are currently received and signals which are locally recurrent, obtaining coherent information according to the frequency mixing signals and the spreading codes which are locally generated, processing the coherent information, obtaining a processing result, regulating signals which are locally generated by adopting the processing result, and stripping the carrier waves and the spreading codes in the signals which are received at the next moment from each other by adopting the signals which are regulated. According to the method and the device, disclosed by the embodiment of the invention, the carrier waves and the instantaneous codes which are locally generated can be respectively consistent with receiving carrier waves and receiving codes, and thus the stripping degree of the carrier waves and the spreading codes in the signals which are received at the next moment can be increased.

This invention relates to a signaling point report flow time-sharing process method includes: a.A user layer receives MTP reported information b. to be compared with records in PCM control list c. registering coherent information and starting a timer d. judging if the timer surpasses the designed time e. finding out the first register with reported state f. processing the said PCM circuit according to the state g. judging if there is a PCM with report record in the next to return back to step d, or finish the flow if not, the invented method amends the in-all process into a time sharing process to reduce the system burden.

This invention relates to a method for realizing whole network numbers carried service by a route service device, including combining the user number and area number to an exclusive user character number when numbering. After a user shifts the call across the area, the shift out or in soft exchange equipment reports to the rout service device of its father node, the received route service device refreshes the route information lists coherently and synchronizes to related nodes, the user shift-in soft exchange equipment sets up coherent information of the said user at the same time. When other users call the user across the area, the soft exchange equipment where the dialing situates sends a inquiry request to the route server of its father node containing the character number and sets up call flow after getting the route information of the shift user exchange device.

The invention discloses a wave beam space direction finding method under an impact noise environment. The wave beam space direction finding method comprises the steps: signal sampling data are obtained and subjected to wave beam space processing, and a target equation of maximum likelihood estimation of a wave beam space is obtained; a dolphin group is initialized, and a belief space is initialized; the adaptability degree is calculated, and the global optimal position of the dolphin group is recorded; the dolphin group is divided into different equal-scale teams, and each dolphin in the teamsobtains the temporary position according to information sharing; the temporary adaptability degree is calculated, the local optimal position of each dolphin is updated; the positions of the dolphinsare updated according to a cultural mechanism; the adaptability degree is calculated, the local optimal position of each dolphin is updated, the global optimal position of the dolphin group is updated, and according to part of the local optimal positions, the belief space is updated; and whether the maximum number of iteration times is reached or not is judged, and the direction finding result isobtained and output. Coherent information sources are subjected to effective direction finding under the impact noise environment, and the advantages of high convergence speed and high convergence accuracy are achieved.

The invention provides a self-adaption apodization method based on phase coherent information. The method includes the steps of conducting Hilbert change on all routes of channel signals to obtain the phase information, obtaining a dynamic weighting value of each channel through a certain self-adaption processing method according to preliminary phase estimation and the deviation of the phase information of each channel, and conducting beam forming at last. To improve the robustness of the self-adaption processing method, a phase variance sensitive threshold and multiple geometrical mapping relation curves between a phase difference and the weighting values are introduced into the calculation process of the dynamic weighting values. According to the self-adaption apodization method, by means of internal phase diversities, received in the beam forming process, of data of the multiple channels, side lobe signals and grating lobe signals are restrained, meanwhile, the width of a main beam is reduced, and transverse resolving ability of images is improved.

In the manufacturing-specific information database (20), information related to articles is stored in association with each other, and a group of information related to the article can be specified for each article. The first code generation unit (43) generates, for each article, a first code representing the content unique to the article by using a part of a set of information that can be identified for the article. The second code generation unit (44) generates a second code for each item, wherein the second code includes information on the content unique to each item in the above-mentioned group of information, and the information is not included in the first code. . A two-dimensional code generation unit (45) generates an optical information code (two-dimensional code) representing the first code, and an identification code generation unit (46) performs predetermined conversion processing on the second code to generate character string data (identification code). A print control unit (47) executes processing of marking the generated optical information code and character string data on the article or its accessories.

The invention discloses a complex coherent signal three-dimensional visualization method comprising a step 1) of reading a complex coherent signal pairs s1 and s2 to be visualized, and constructing acomplex coherent matrix C by second-order statistical averaging; a step 2) of based on the complex coherent matrix C constructed in the step 1), calculating a parameter c0 reflecting the power sum ofs1 and s2, a parameter [beta] describing the relative power difference of s1 and s2, and a complex coherence coefficient [gamma] between s1 and s2; a step 3) of based on the parameters c0, [beta] and[gamma] obtained in the step 2), further calculating parameters c1, c2 and c3 so as to constitute a coherent vector c together with the parameter c0; a step 4) of constructing a three-dimensional coherent sphere based on the coherent vector c obtained in the step 3) so as to visualize all degree of freedom information of the complex coherent signal. The complex coherent signal three-dimensional visualization method completely describes the power information and the coherent information of the complex coherent signal by expanding a traditional two-dimensional circular map into a three-dimensional coherent sphere.

The invention discloses a sparse manifold classification method for multi-scale description primitives of polarimetric SAR images, in order to solve the problems of extraction and fusion of non-coherent information and coherent information of time-series polarimetric SAR Multiplicative model non-coherent problem, through an essential feature fusion and manifold sparse expression, can effectively classify time series polarimetric SAR images. The invention discloses a method for constructing a multi-scale description primitive that combines two scale information of polarization incoherent features and time series coherent features, and utilizes a multi-level nonlinear production model expressed by compressed sensing and sparse manifolds to The method of feature extraction and information dimension reduction can effectively classify time series polarimetric SAR images, and multi-scale description primitives can also become a general basic technology for time series polarimetric SAR image processing.

This invention relates to a message send / receive method realizing routing and bridge-connecting functions under an internet protocol setting bridge-connection module and bridge-connection port on a router to set up a common Ethernet address and IP address for it. When receiving message via bridge-connection port, the message is transferred to the bridge-connmection or IP module for sending or discarding. When sending the message, the related information on the router of sending message is compared with coherent information in the message or duplicated to be sent by the bridge-connection module. This invention method enables inter-bridge connection access in bridge-connection network, and inter-communication of IP protocols with non bridge-connection network.

The invention discloses a method and a device for regulating signals, which are capable of increasing the locating accuracy by increasing the stripping degree of carrier waves and spreading codes in the signals. The method comprises the steps of obtaining frequency mixing signals by carrying out frequency mixing on signals which are currently received and signals which are locally recurrent, obtaining coherent information according to the frequency mixing signals and the spreading codes which are locally generated, processing the coherent information, obtaining a processing result, regulating signals which are locally generated by adopting the processing result, and stripping the carrier waves and the spreading codes in the signals which are received at the next moment from each other by adopting the signals which are regulated. According to the method and the device, disclosed by the embodiment of the invention, the carrier waves and the instantaneous codes which are locally generated can be respectively consistent with receiving carrier waves and receiving codes, and thus the stripping degree of the carrier waves and the spreading codes in the signals which are received at the next moment can be increased.

This invention relates to a method for realizing whole network numbers carried service by a route service device, including combining the user number and area number to an exclusive user character number when numbering. After a user shifts the call across the area, the shift out or in soft exchange equipment reports to the rout service device of its father node, the received route service device refreshes the route information lists coherently and synchronizes to related nodes, the user shift-in soft exchange equipment sets up coherent information of the said user at the same time. When other users call the user across the area, the soft exchange equipment where the dialing situates sends a inquiry request to the route server of its father node containing the character number and sets up call flow after getting the route information of the shift user exchange device.