210results about How to "Increase vertical resolution" patented technology

The invention relates to a high-resolution optical coherence tomography method, which adopts depth resolution dispersion compensation to more accurately compensate the dispersion in a compensation circuit and a sample, so as to eliminate the widening effect of the dispersion. The invention has the advantages that the dispersion compensation can be implemented without learning the materials and the structure information of the sample in advance, and the invention can not only compensate the dispersion mismatching of the two arms of an interference device, but can also compensate the internal dispersion of the sample; furthermore, the invention can adopt the corresponding dispersion coefficient to carry out the compensate against the different depth of the internal part of the sample, so as to achieve the best compensation effect and obtain optical coherence tomography images with high-resolution.

The invention relates to an in situ deposit-aqueous interface water-quality sampler and a sampling method thereof. The sampler adopts a group of sampling plates and a group of protecting plates to clamp osmosis membranes and fix the osmosis membranes together by screws; the sampling plate is divided into an interstitial water sampling section of deposit and an overlying water sampling section of an interface in longitudinal direction; a plurality of transverse grooves which have longitudinal intervals of 2mm to 3mm are arranged on the interstitial water sampling section of deposit and the overlying water sampling section of the interface; the volume of the groove is between 2000microlitre to 4000microlitre; an interfacial limiting plate is arranged between the interstitial water sampling section of deposit and the overlying water sampling section of the interface; the sampler realizes in situ collection of deposit-aqueous interface water-quality samples, adopts an interfacial limiting device, and can accurately determine the deposit-aqueous interface; the sampler is equipped with a weight drop and a retrieve rope, can be used in aquatic deeper lakes, and has operability, site throwing and convenient retrieving; and the volume of each layer of water-quality sampling room reaches to 4000microlitre and can complete more index analysis simultaneously.

The invention discloses a method for improving an optical scanning holographic tomography effect, and belongs to the field of optical tomography. The method can solve the defect in the conventional optical scanning technology that restored section images have louder out-of-focus noise, in real time. The method comprises the following steps: utilizing a random phase in the optics encryption technique, changing a certain pupil function in a conventional optical scanning holographic system into a stochastic phase pupil function, and equaling restore of out-of-focus layer images into decryption under the condition of mistakenly decrypting a secret key, thereby enabling the out-of-focus layer images overlaid on the restored section images to be gaussian white noise with statistical independence and greatly reducing the influence of the out-of-focus noise on the focus layer images. Meanwhile the out-of-focus noise can also be filtered through design of a gaussian filter, so that the longitudinal resolution of the system can be improved; besides, through the adoption of the method, the bandwidth of the optical transfer function is wider, and the transverse resolution of the restored section images can be higher.

A video camera which is provided with an inter-line type CCD and also which enjoys a function as a digital still camera. The video camera includes an irising mechanism for adjusting a quantity of light incident upon the CCD, an iris driving circuit for driving the irising mechanism, and a camera microcomputer for controlling operations of adjusting an incident-light quantity by the irising mechanism by controlling the iris driving circuit. The camera microcomputer controls the iris driving circuit to drive the irising mechanism, whereby the incident light upon the CCD is blocked to perform only a read-out operation while data of all the pixels is read out from the CCD.

The invention provides a method and device for obtaining a transverse relaxation time spectrum by depth-dimension nuclear magnetic resonance inversion. The method comprises the following steps of: for the spin echo string data of the stratum on multiple depth points, replacing the pore volume percentage of the pore with relaxation time T2 by multiple B spline primary functions on the T2 dimension, and expanding the data covering the stratum information on multiple depth points with a Walsh function on the depth dimension; constructing a kernel function for joint inversion according to the measurement parameter of an actual logging instrument and a longitudinal response function, and performing joint inversion to obtain the response parameter; and substituting the response parameter into the B spline primary function and the Walsh series of the Walsh function to obtain a nuclear magnetic resonance T2 spectrum on multiple depth points. Through the scheme, the obtained nuclear magnetic resonance T2 spectrum has relatively high longitudinal resolution, and a double sampling interval can be obtained for the horizontal layered stratum.

An LCD capable of being reduced by a whole size and a defective proportion thereof being minimized. An LCD panel of the LCD includes a gate driving circuit that drives gate lines formed extended along a row direction and a line block selecting circuit that drives data lines extended along a column direction. On the LCD panel, an integrated driving chip having a controller, a memory, a level shifter, a source driver, a common voltage generator and a DC / DC converter is mounted. The integrated driving chip not only drives the gate driving circuit and line block selecting circuit, but also controls the operation of the LCD panel to display an image. Thus configured, a defective proportion of the LCD is decreased, with the whole size thereof being reduced.

The invention provides an atmosphere profile inversion method based on a foundation hyperspectral microwave radiometer, and belongs to the technical field of microwave remote sensing. The atmosphere profile inversion method based on the foundation hyperspectral microwave radiometer comprises the following steps of setting system parameters of the foundation hyperspectral microwave radiometer, acquiring background parameters and background field errors, establishing a radiation transfer model, determining atmospheric radiation transmission brightness temperature, and inverting an atmosphere profile by using the iterative process of a variational method. Through the utilization of the atmosphere profile inversion method based on the foundation hyperspectral microwave radiometer, the accurately inverted atmosphere profile can be obtained through the foundation hyperspectral microwave radiometer, and the atmosphere profile inversion method is especially suitable for multi-channel radiometers and detection situations of insufficient prior data, enables a large amount of frequency band information provided by the foundation hyperspectral microwave radiometer to be used completely, and has strong adaptability and small detection errors.

The invention provides a method for improving a seismic data resolution ratio for well control. The method for improving the seismic data resolution ratio for well control comprises the steps of calculating reflection coefficients at all well positions; calculating deconvolution operators at all well positions according to reflection coefficients at all well positions; conducting reverse distance weighted three-dimensional spatial interpolation on all deconvolution operators to obtain deconvolution operators of all seismic traces in a three-dimensional space; and conducting convolution processing on original seismic trace data according to deconvolution operators of all seismic traces, and obtaining three-dimensional data volumes through phase correction and trace equalization. The method for improving the seismic data resolution ratio for well control solves the problems that seismic data in the prior art are low in resolution ratio and high in limitation of application range, and the method has the advantages that a plurality of weakened horizon information is strengthened, information of structures such as faults is clear and the superimposing relationship of horizons is clear and accurate.

The invention relates to a piezoelectric digital seismometer on land to solve the problem of poor interference resistance of the conventional seismometer. The seismometer consists of a piezoelectric seismometer, a digitalizing unit and a data communication unit which are connected sequentially, wherein the piezoelectric seismometer and the digitalizing unit are directly connected and integrated into a whole; a piezoelectric material of the piezoelectric seismometer consists of a multi-layer piezoelectric device; and the data communication unit provides the function of data communication with a seismic instrument host system. In the piezoelectric digital seismometer, a core body comprises a cylindrical shell, a substrate, the multilayer piezoelectric device, a mass block and extraction electrodes, wherein the substrate is arranged on the bottom of the shell and is in rigid connection with the shell; the substrate is provided with the piezoelectric material; the piezoelectric material is provided with the mass block perceiving seismic wave movement; and the extraction electrodes are arranged on the upper side and the lower side of the piezoelectric material respectively. The piezoelectric digital seismometer has the advantages of small volume, light weight, high sensitivity, small resistance and strong interference resistance.

The invention discloses an intravascular ultrasonic focusing method, focusing diagnostic device and focusing energy transducer. The intravascular ultrasonic focusing method comprises: sending an intravascular ultrasonic focusing diagnostic device to a far-end of a site of lesion; emittingultrasonic signals at 360 DEG to the inside of a blood vessel. The intravascular ultrasonic focusing diagnostic device includes an ultrasonic catheter, awithdrawing / drive apparatus and anelectronic imaging system. The front end of the ultrasonic catheter is provided with the intravascular ultrasonic focusing energy transducer. The rear end of the ultrasonic catheter is connected to the withdraw / drive apparatus which is connected to the electronic imaging system. The intravascular ultrasonic focusing energy transducer includes ultrasonic energy transducer units and a focusing unit. The ultrasonic energy transducer units serve to emitultrasonic signals and receive an ultrasonic signal that is reflected. The focusing unit serves to focus the ultrasonic signalemitted by the ultrasonic energy transducer unit. According to the invention, the resolution of the diagnostic device is increased and the signal to noise ratio of the imaging of the diagnostic deviceis increasedby using intravascular ultrasonic focusing technology, so that the diagnosis precision is increased.

The invention relates to a tomography method of using the limb sounding data for inverting atmospheric ozone profiles. The method comprises the following steps: respectively calculating the intersections between the gaze vector and the atmospheric grid radial and vertical boundary and atmospheric layer horizontal boundary, merging two types of intersections, then calculating the distance between adjacent intersections to obtain intercept; applying the tomography method in a correlate equation about volume emissivity and radiance, using the square iterative reconstruction technology to obtain the inverse iteration model of the volume emissivity, calculating the volume emissivity; and finally using an oxozone photochemical model to connect the volume emissivity with the ozone number density, and selecting the Newton iteration method to invert the ozone profiles.

The invention discloses an ionospheric tomography method based on vertical measurement data constraint. The method comprises the following steps: step A, reconstructing F2-layer characteristic parameters of a background ionized layer model based on vertical measurement data; step B, calculating the total electron content of ground-based GNSS ionospheric inclination; step C, constructing an ionospheric tomography inversion matrix; the invention discloses an ionospheric tomography method based on vertical measurement data constraint. Ionosphere vertical measurement data published by a global radio ionosphere observation station and ground-based GNSS observation data published by an International Global Service (IGS) are used as data sources of ionosphere tomography. The ionospheric tomography background model is updated by utilizing the vertical measurement data; the background ionosphere model is corrected by using an improved multiplication algebraic iterative algorithm in combinationwith the inclined total electron content data of the ground-based GNSS, and regional and even global ionosphere tomography is realized, so that the spatial-temporal change characteristics of the totalelectron content and electron density of the ionosphere are obtained.

The embodiment of the invention discloses a laser radar and a laser radar control method. The laser radar comprises a laser emitter used for emitting emission laser, a two-dimensional vibration lens used for changing light path direction of the emission laser in the vertical and horizontal directions, and a half-transparent and half-reflecting mirror used for allowing the emission laser from the laser emitter to penetrate through the two-dimensional vibration lens. According to the invention, cost of the laser radar can be reduced and vertical resolution of the laser radar is improved.

The invention belongs to the technical field of sandstone-type uranium deposit exploration, and particularly discloses a sand body reorganization method in sandstone-type uranium deposit exploration. The method includes the following steps that (1) pure wave data of a seismic processing section are collected; (2) logging data of a drilling well nearby the seismic section are collected, and the abnormal contrast value of density and the abnormal contrast value of sound waves are calculated; (3) moving average processing is conducted on density data and sound wave data; (4) a seismic inversion calculation initial model is established through the density data, the sound wave data and the logging data after moving average processing in the step (3); (5) inversion calculation is carried out on wave impedance data of the seismic section through an inversion method based on the model, and the wave impedance data of the seismic section are acquired; (6) sand bodies in a sandstone-type uranium deposit area are determined according to the wave impedance data acquired in the step (5). By means of the sand body reorganization method in sandstone-type uranium deposit exploration, the development condition and the distribution feature of the sand bodies in sandstone-type uranium deposit exploration can be recognized accurately, rapidly and economically.

The invention provides a space-borne microwave radiometer, which comprises feed sources, calibration bodies, a motor, microwave reception antennas, a scanning drive control module, high-speed digital acquisition systems and microwave receivers. The motor is controlled by the scanning drive control module to drive the microwave reception antennas to rotate; the high-speed digital acquisition systems are connected with the microwave receivers, the scanning drive control module and an upper computer; and the high-speed digital acquisition systems are communicated with the upper computer, realize refining of spectrum resolution of analog signals output by the microwave receivers, then, carry out digital acquisition and quantitative processing through a multichannel mode, output the obtained digital signals to the upper computer and controls operation of the scanning drive control module. The ultra-broadband ultra-multichannel microwave radiometer is provided based on the basic theory of an existing conventional microwave radiometer, realizes fine spectrum microwave radiometer measurement, improves vertical resolution of atmospheric parameter detection and prevents defects of conventional microwave radiation detection.

The invention provides an adaptive hybrid norm dictionary learning seismic wave impedance inversion method, and belongs to the field of seismic inversion. Through the combination of the post-stack wave impedance inversion in exploration geophysics with dictionary learning and denoising, the adaptive denoising and dictionary learning based post-stack wave impedance inversion method can be provided.The method adopts an adaptive hybrid norm objective function to replace an original 2-norm objective function, so that an objective function can better overcome non-gaussian noise; well logging information is introduced through a dictionary learning method, so that influences of different seismic noise can be effectively overcome, and the vertical resolution of inversion can be enhanced by fullyutilizing the well logging information; and compared with traditional methods of least squares, robustness can be stronger, the noise immunity and inversion result precision of the seismic wave impedance inversion can be enhanced, multiple solutions can be reduced, and convenient data processing in geological exploration can be achieved.

The embodiment of the invention discloses a multi-line laser radar and a multi-line laser radar control method. The multi-line laser radar comprises a laser emitter for emitting outgoing laser and a collimating optical unit for collimating the outgoing laser. The laser emitter includes a plurality of laser emitting panels and light emitting end surfaces of the plurality of laser emitting panels are located at the focal plane of the collimating optical unit. Therefore, the vertical resolution of the multi-line laser radar can be improved.

The present invention discloses a microscopy imaging structure with phase conjugated mirror and the method thereof. The afore-mentioned imaging structure produces a reverse focusing conjugated probe beam together with an original probe beam. These two probe beams meet at the focal point in the object body to be probed, and an interference pattern is produced. The interval between any two consecutive wave fronts in the interference pattern is then half of the wavelength of the original probe beam, and hence the vertical resolution of the image is improved. The present invention also applies a light modulator module on the probe beam to easily adjust the depth of the focal point of the probe beam and the phase conjugated reverse focusing probe beam in the object body. With the adoption of this invention, the size or position limitation of the target object is eliminated and the imaging resolution is also improved.

The invention discloses airport airship based novel typhoon tracking and detecting method and system, and belongs to the field of the monitoring and early warning of natural disasters in airport information systems. The typhoon tracking and detecting system provided by the invention comprises a typhoon tracking flight controller, an on-board typhoon detecting radar, an airborne weather perceptionnode, a weather perception fixed-point deliverer, an on-board receiver and a high-resolution digital typhoon simulation system, wherein the typhoon tracking flight controller, the on-board typhoon detecting radar, the airborne weather perception node, the weather perception fixed-point deliverer and the on-board receiver are carried on an airship; and the high-resolution digital typhoon simulationsystem is mounted on a ground working station, According to the method provided by the invention, the position of a typhoon is tracked by utilizing the airship; the perception node is thrown as required into the interior of the typhoon above the typhoon; internally measured data are collected through a sensor, and are transmitted back to a ground station via the airship; the assimilative simulation is carried out on the typhoon; and the prediction and the disaster reduction are realized. The system is not constrained by a foundation; the airship can trace and monitor the overall process of the generation, development and disappearance of the typhoon overhead a sea; and compared with existing foundation and space-based detecting methods, the method has the advantages of long-time space staying, wide-area coverage, continuous tracking and real-time data back transmission.

The embodiment of the invention discloses a laser radar and a laser radar control method. The laser radar comprises a plurality of laser emitting plates for emitting emergent laser; and preset angles are formed between the plurality of laser emitting plates and a horizontal plane. Two or more than two laser emission units are arranged at each laser emitting plate. Therefore, the vertical resolution of the laser radar can be improved.

The invention relates to dual laterolog equipment, an electrode system of the dual laterolog equipment and a formation resistivity measuring method. The electrode system comprises an electrode system body and an insulation core rod, consists of a plurality of electrodes arranged on one insulation core rod, and is connected with a measuring circuit through a conducting wire; insulation materials are used for separating the plurality of electrodes; the center of the insulation core rod is a metal rod; a through hole is formed in the center of the metal rod; the metal rod is isolated from the electrode system; the electrode system comprises main electrodes A0 and A0', at least one pair of shielding electrodes A2, A2', A1 and A1', a plurality of pairs of voltage measuring electrodes A1*, A1*', M0 and M0' and at least one pair of voltage monitoring electrodes M2, M2', M1 and M1', wherein the main electrodes A0 and A0' are arranged in the middle of the electrode system; the shielding electrodes A2, A2', A1 and A1' are used for emitting shielding current for focusing main current; the voltage measuring electrodes A1*, A1*', M0 and M0' are used for measuring electrode voltage; the voltage monitoring electrodes M2, M2', M1 and M1' are used for voltage monitoring; the shielding electrodes A2 and A2 are in short-circuit connection; the main electrodes A0 and A0' are in short-circuit connection; and other electrodes are not in short-circuit connection. Therefore compared with a hard focusing mode, the electrode system has high measuring precision.

The invention relates to a frequency division fusion wave impedance inversion method. According to the method, conventional well logging constraint model inversion is carried out through initial seismic data and well logging data of multiple drills, and an inversion result of the well logging constraint model is obtained; the inversion result of the well logging constraint model is used as an initial model, high-resolution inversion is carried out under the constraint of tuning frequency, and a high-resolution inversion result is obtained; and the well logging constraint model inversion resultand the high-resolution inversion result are subjected to frequency division band combination, and a frequency division fusion inversion result is obtained. By virtue of the method, the vertical resolution is improved on the basis of inversion of the well logging constraint model, and the accuracy of model inversion is kept; by virtue of the high-resolution inversion result of the seismic tuningfrequency constraint, the uncertainty of the well logging data high-frequency information in the transverse interpolation value is reduced; and frequency division fusion is carried out on the well logging constraint model inversion result and the high-resolution inversion result, so that wave impedance data which are relatively high in vertical resolution and accurate in transverse change can be provided for an oil gas area which is relatively thin in stratum and relatively fast in transverse change.

The embodiment of the invention discloses a logging frequency matching thin-layer correction method and logging frequency matching thin-layer correction equipment. The method and the equipment can solve the problems of low thickness of a storage layer, influence of a wall rock on a logging curve and serious distortion of an oil-gas field developed from a thin layer and a thin air layer and can improve the longitudinal resolution of the logging curve so as to really reflect stratal information.

The invention is about the dynamic correction superimposed method to avoid the dynamic correction tension in the earthquake data processing. The technology program: it collects the earthquake wave by the normal multiple coverage technology; it records the ti value of each sampling time in the record of excitation and receiving self by the CMP gathering and the wavelets gathering (ti stands for the recording time of self-excitation and receiving earthquake track; the i stands for the i sampling point). In the processing of invention, it does not form the wave tension or record. So it can avoid the frequency and vertical distinguishability reduction and improve the middle-low frequency and vertical distinguishability on gathering section. The invention has instead of the dynamic correction and CMP gathering in traditional processing, so it can correct each reflecting wave but not make it tension to improve the section frequency, the vertical distinguishability and SNR.

The invention provides an image reconstruction method and device of a medical scanning image. The method includes the following steps: receiving scanning data from medical image equipment; determining projection values of a pair of conjugate rays of each voxel; and performing multi-order interpolation on the projection values of the pair of conjugate rays in a row direction of a detector of the medical scanning image. The reconstruction method of the medical scanning image can improve the longitudinal resolution of a scanned object.

The invention discloses a formation resistivity combined inversion method based on while-drilling electromagnetic wave resistivity logging. The formation resistivity combined inversion method comprises the steps that firstly, the amplitude ratio and phase difference data of while-drilling electromagnetic wave resistivity logging are obtained; then, weighted summation is conducted according to theamplitude ratio and the phase difference data, and the combined constraint inversion objective function is built; and finally, based on the combined constraint inversion objective function, the particle swarm algorithm is used for inversion, and thus the formation resistivity is obtained. A formation resistivity curve obtained through the formation resistivity inversion method combines the advantages of the good radial investigation depth of a traditional amplitude ratio resistivity curve and the good longitudinal resolution of a phase difference resistivity curve, while-drilling electromagnetic wave resistivity logging information is utilized more fully, and compared with a traditional inversion method, the inversion workload is reduced by a half.

The invention discloses light-cured printing equipment and a method for forming a three-dimensional structure in photosensitive hydrogel according to an image stored in a computer. The light-cured printing equipment comprises a digital projection unit used for projecting the image into a photosensitive hydrogel layer, a photosensitive hydrogel curing unit used for providing the photosensitive hydrogel to form the photosensitive hydrogel layer and curing the photosensitive hydrogel in the photosensitive hydrogel layer according to the projected image layer by layer and a computer control unit used for providing the image to the digital projection unit and controlling imaging position of the projected image in the photosensitive hydrogel layer, wherein the photosensitive hydrogel curing unit consists of a guide rod and a bearing sheet which moves along the guide rod, and the lower surface of the bearing sheet is used for limiting the upper liquid level of the photosensitive hydrogel layer. The light-cured printing equipment is capable of printing the three-dimensional structure with high accuracy and high speed.

The embodiments of the invention provide a photo-acoustic imaging system comprising a detection laser, an excitation laser, a light path system, a water container, a metal film and an imaging processing device. The detection laser is used for generating detection laser and the excitation laser is used for generating excitation laser. The water container holds water for transmitting optical and acoustic waves, wherein the refractive index of the water changes by the action of the optical and acoustic waves. The metal film is used for receiving incoming detection laser, and the detection laser generates surface plasma resonance on an upper surface of the metal film to obtain reflected detection laser. The imaging processing device is used for performing imaging on samples according to the reflected detection laser. The light path system is used for transmission of detection laser among the detection laser, the metal film and the imaging processing device and also used for transmission of excitation laser between the excitation laser and samples. The system has the advantage of high imaging resolution.