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 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.

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.

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 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 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.