438 results about "Scan angle" patented technology

The invention belongs to the technical field of three-dimensional imaging and measurement, and particularly discloses a laser scanning three-dimensional imaging method and device, a medium and equipment, and the method comprises the steps: obtaining laser scanning data of a target object, and the laser scanning data comprises depth data including reflection intensity, a scanning angle, a timestamp and flight time; preprocessing the laser scanning data, and fusing a time sequence and scanning path information to obtain multi-channel input features adaptive to a neural network; constructing a three-dimensional geometric reconstruction model, and training the model; inputting the multi-channel input features into a trained three-dimensional geometric reconstruction model to obtain a dual-channel output tensor containing a dense depth map of the target object and a corresponding uncertainty map; converting the dual-channel output tensor comprising the dense depth map of the target object and the corresponding uncertainty map into a three-dimensional point cloud under world coordinates; and post-processing the three-dimensional point cloud to obtain a three-dimensional image of the target object.

The invention discloses an array antenna phase-only real-time beam scanning and side lobe control method based on machine learning. Firstly, array geometry, scanning angles and minor lobe indexes are set; and then, array element excitation phases meeting requirements are rapidly synthesized by using a phase-only fast Fourier FFT (Fast Fourier Transform) algorithm. Constructing a training data set by taking the scanning angle and the minor lobe index as input and the corresponding phase distribution as output; training a neural network by using the data set to obtain a real-time prediction model from initial excitation distribution to accurate excitation distribution; and according to a target expected directional diagram scanning angle and a sidelobe feature, inputting the scanning angle and the sidelobe feature into a neural network to predict and obtain an array element excitation phase so as to realize a real-time phase-only beam and sidelobe control function. Input dimensions are reduced by extracting key features of a directional diagram, data generation is accelerated by means of FFT, real-time performance and precision are both considered, and the method is suitable for fast beam scheduling tasks of various array antennas.

The invention belongs to the technical field of antenna engineering, and particularly relates to an ultra-wide-band low-profile phased-array antenna, which realizes broadband impedance matching characteristics and effectively expands the working bandwidth of the antenna by optimizing a dipole arm structure and introducing a matching branch knot and linear tapered slot composite structure on a radiation unit layer; on the array architecture level, an electromagnetic metasurface technology is adopted, array current distribution is improved through a periodic artificial electromagnetic structure, the active standing-wave ratio is remarkably reduced, the scanning angle of an array is widened, and meanwhile high compression of a system profile is achieved; on the structural design level, a three-dimensional composite structure of a transverse metal floor, a longitudinal radiation layer and a transverse metasurface layer is innovatively constructed, and the overall section height is reduced to 0.137 lambda Low (lambda Low is the lowest working frequency wavelength) through electromagnetic coupling and space folding technologies; in conclusion, the ultra wide band (the relative bandwidth is greater than or equal to 90%) and the low profile (lt; and the method is suitable for a new generation of broadband phased array radar system.

A VTOL UAV comprising a chassis, a propulsion system mounted on the chassis, electronics including a flight control system, and a 3D LIDAR sensor mounted on the chassis. The 3D LIDAR sensor has a laser beam 360° rotation axis (R) and an azimuthal scanning angle (α) in a range of 70° to 110°. The propulsion system comprises a plurality of propellers with motors configured for flight without wings, including static hovering flight, the VTOL UAV comprising a yaw axis (Z) about which it can rotate upon itself. The 3D LIDAR sensor is statically mounted on the chassis such that the LIDAR laser beam 360° rotation axis (R) is inclined at a LIDAR inclination angle (β) with respect to the yaw axis (Z) in a range of 35° to 50°.

The invention provides an MEMS (Micro Electro Mechanical System) micromirror array chip, a module and optical scanning equipment. The MEMS micromirror array chip comprises a plurality of micromirror structures, a substrate, a vertical lead structure and a capacitance angle sensing structure, according to the micro-mirror array chip integrated with the capacitive sensor, array-level real-time angle detection, feedback control and high-precision scanning angle detection are realized, and the micro-mirror array chip is fast in driving and resistant to interference; meanwhile, the wiring density is reduced by frequency division multiplexing isolation signals; in addition, the application of a monolithic integrated capacitance angle sensor in a high-density micro-mirror array chip is realized by a thick substrate with a silicon through hole; and finally, the micromirror array chip of the monolithic integrated capacitance angle sensor is used for precision optical scanning equipment, a photoelectric angle detector is omitted, optical scanning high-precision real-time angle detection and feedback control, high-precision angle detection and high-speed scanning are realized, the use design is convenient, and the cost is low.

A half-spectrum search DOA estimation method based on characteristic value gradient jump belongs to the field of array signal processing, and comprises the following steps: modeling a received signal to obtain an array output vector; calculating a received signal covariance matrix; introducing a complex conjugate covariance matrix and a scanning source to construct a new covariance matrix, and constructing a spatial spectrum function; constructing a characteristic value gradient discrimination function, and adaptively estimating a signal source number by using the characteristic value gradient discrimination function; scanning angles are traversed by using a half-spectrum search method, and a signal direction of arrival is verified and determined by combining an MVDR algorithm according to a sharp spectrum peak formed by a spatial spectrum function. According to the method, source number priori knowledge is not needed, the source number can be identified autonomously, the problem that estimation is inaccurate under complex conditions in traditional half-spectrum search is solved, and the method has good robustness under the scene of unknown source number. According to the method, the limitation that few traditional half-spectrum search angle estimation is inaccurate is overcome, and a new thought is provided for half-spectrum search DOA estimation under the condition that the number of information sources is unknown.

The invention relates to the technical field of gas leakage detection and optical remote sensing, particularly discloses a laser natural gas leakage point positioning and imaging processing method based on an unmanned aerial vehicle, and aims to solve the problems of multiple coverage blind areas, low positioning precision and easiness in environmental interference in the prior art. The method comprises the following steps: acquiring a methane concentration integral value through a tunable diode laser absorption spectrum system carried by an unmanned aerial vehicle; constructing an initial concentration point cloud in combination with the high-precision pose and scanning angle data; performing space-time filtering and interpolation enhancement by adopting Kalman filtering and a Gaussian plume model to generate a high-confidence three-dimensional concentration field; and accurately positioning a leakage source by using a gradient rising tracking algorithm in combination with curvature and continuity constraints, and matching pipe network geographic information to perform verification alarm. According to the technical scheme, large-range, high-precision and full-automatic natural gas leakage detection and visual positioning are realized, and the signal-to-noise ratio, the anti-interference capability and the response efficiency are remarkably improved.

The present disclosure is directed to a camera configured to capture a set of oblique images along a scan path on an object area; a scanning mirror structure including at least one surface for receiving light from the object area, the at least one surface having at least one first mirror portion at least one second portion comprised of low reflective material arranged around a periphery of the first mirror portion, the low reflective material being less reflective than the first mirror portion; and a drive coupled to the scanning mirror structure and configured to rotate the scanning mirror structure about a rotation axis based on a scan angle. The at least one second portion can be configured to block light that would pass around the first mirror portion and be received by the camera at scan angles beyond the set of scan angles.

The invention discloses a phased array radar sparse super-resolution imaging method based on antenna pattern correction, which comprises the following steps of: firstly, combining Doppler phase information under a motion platform to construct a reconvolution model of a phased array radar, then dynamically adjusting the number of sampling points of an antenna pattern according to a scanning angle, and correcting an antenna pattern matrix; and finally, based on a covariance criterion, proposing a weighted sparse iteration solution framework, and realizing sparse target reconstruction. According to the method, the scanning process of the phased array radar is accurately represented by correcting an antenna pattern matrix, and a weighted sparse iteration solving framework based on a covariance fitting criterion is provided to realize sparse target reconstruction under the condition of low signal-to-noise ratio. The problems of model mismatch caused by broadening of an antenna pattern along with a scanning angle in the electronic scanning process of the phased array radar and imaging distortion caused by Doppler phase errors of a high-speed motion platform are solved.

The invention relates to the technical field of photovoltaic power generation equipment, and particularly discloses a photovoltaic panel fault inspection device for a solar photovoltaic power station, which comprises a rack and an infrared scanner, the upper side of the rack is provided with a toothed plate for supporting the infrared scanner, and the lower side of the rack is provided with a driving assembly. The driving assembly is used for driving the rack to linearly move along the surface of the photovoltaic panel, an adjusting assembly is arranged between the toothed plate and the rack, the adjusting assembly comprises lug plates fixedly connected with the outer surface of the upper end of the rack, and a driven shaft is rotationally connected between the two sets of lug plates. By arranging the adjusting assembly, the supporting pipe drives the toothed plate and the infrared scanner to turn over with the driven shaft as the fulcrum, so that the scanning angle of the infrared scanner is adjusted, the angle between the infrared scanner and the photovoltaic panel can be maintained within a proper range, the detection precision of the photovoltaic panel can be effectively improved, and the detection efficiency of the photovoltaic panel is improved. And meanwhile, the application range of the inspection device can be effectively expanded.

A hybrid scanning antenna including: a reflector having a focal line; a first mechanical movement to move the reflector about a first axis; a second mechanical movement to move the reflector about a second axis; a linear array fixedly disposed along the focal line to electronically scan at a scan angle about a third axis; and a controller to control the first mechanical movement, the second mechanical movement and the scan angle of the linear array to orient the hybrid scanning antenna to a look angle of a remote transceiver.

The invention relates to the field of nanometer materials, in particular to a 2D-TMDs transverse heterojunction array and a Zigzag M / X end induction preparation method and application thereof, and the preparation method comprises the steps that a single crystal nanosheet of an A material is obtained, the A material is MX2, and M is W or Mo; x is S or Se; laser confocal etching treatment is conducted on the single crystal nanosheet, and the scanning angle of the laser confocal etching treatment ranges from 10 degrees to 50 degrees; carrying out micro-cavity thermal etching on the single crystal nanosheet with the arraying point defects; preparing a banded array with zigzag M / X atom alternating ending edges; and depositing a B material by taking the prepared strip array as a deposition template, and enabling the B material to laterally and epitaxially grow along the edge of the strip array to prepare the A-B lateral heterojunction array of the specific heterogeneous interface. According to the Zigzag M / X end induction preparation method disclosed by the invention, a better two-dimensional material interface and structure can be obtained, and better performance can be shown.

The invention relates to the technical field of micro galvanometers, and discloses an electrostatic drive micro galvanometer and a preparation method thereof. The electrostatic driving micro galvanometer comprises a first functional structure layer, a second functional structure layer and a third functional structure layer which are sequentially stacked and are in insulated connection; the first functional structure layer comprises a first accommodating space, a first driving structure and a second driving structure; the second functional structure layer comprises a torsional reflector assembly suspended above the first accommodating space, and the reflecting surface of the torsional reflector assembly deviates from the first functional structure layer; the third driving structure of the third functional structure layer corresponds to the first driving structure, the fourth driving structure corresponds to the second driving structure, and the second accommodating space corresponds to the first accommodating space. A sandwich type structure is adopted, the first functional structure layer and the third functional structure layer which are provided with fixed driving structures are arranged on the upper side and the lower side of the second functional structure layer provided with the movable torsional reflector assembly respectively, the scanning angle of the micro galvanometer is increased, and interference of unbalanced motion is avoided.

The invention discloses a miniature optical scanning device and an electromagnetic driving optical scanning device, the optical scanning device comprises a reflecting mirror, an elastic sheet, a gasket and a permanent magnet, the reflecting mirror is a sheet-shaped element used for reflecting light or changing the light beam propagation direction; the gasket is fixed on the back surface of the reflecting mirror; the elastic sheet comprises a fixed part, an elastic working part and a connecting part, and the connecting part is fixed on the gasket; the fixing part of the elastic sheet is used for being fixedly connected with an external carrier; the elastic working part comprises an elastic structure which can be bent and deformed or bent and deformed, and the reflecting mirror can be driven to rotate back and forth or vibrate around a rotating shaft through bending deformation or bending deformation of the elastic working part; the permanent magnet is fixed on the back surface of the reflecting mirror and is nested in the connecting part of the elastic sheet and the gasket; the internal stress can be effectively reduced, the scanning angle is increased, the service life problem of a product is solved, and the product cost is reduced.

The invention provides a synthetic aperture radar imaging method and device based on adaptive digital beam forming, which can be applied to the technical field of radars. The method comprises the following steps: transmitting a transmitting signal to a wide scene by using an array antenna; acquiring a lower view angle and a side view direction of the synthetic aperture radar, a mounting angle of an array antenna, and a course angle, a pitch angle, a roll angle and position information of the movable equipment; according to the lower view angle, the side view direction, the course angle and the pitch angle, calculating to obtain a squint angle of the mobile equipment; according to the squint angle, a preset sampling point number, the position information and sampling delay, an initial pitch direction intra-pulse scanning angle is determined, and the sampling delay represents time delay between sending of the emission signal and starting of receiving of an echo signal corresponding to the emission signal; according to the initial pitching direction intra-pulse scanning angle, the roll angle and the installation angle, calculating to obtain a target pitching direction intra-pulse scanning weight; and obtaining a target image of the target area according to the target pitching intra-pulse scanning weight.

The invention discloses an offshore wind power single-pile foundation pile monitoring device, and relates to the technical field of offshore wind power foundation piles. The foundation pile comprises a foundation pile body, a terrain scouring monitoring assembly is arranged on the outer surface of the foundation pile body, structural health monitoring assemblies are arranged on the outer surface of the foundation pile body at equal intervals, and a corrosion monitoring assembly is arranged on the outer surface of the foundation pile body. The terrain scouring monitoring structure can adapt to the scanning angle under the complex sea condition, the real-time monitoring capacity of the terrain scouring monitoring structure is improved, the structure health monitoring assembly is arranged, the monitoring assembly is arranged to be in a multi-group mode, the arrangement density of sensors is higher, tiny damage can be conveniently captured, monitoring of key nodes is guaranteed, and the corrosion monitoring assembly is arranged, so that the real-time monitoring capacity of the terrain scouring monitoring structure is improved. The monitoring height position can be flexibly adjusted according to the actual monitoring condition, so that the monitoring range is wider, and the effectiveness of corrosion monitoring is effectively improved.

The invention relates to the technical field of shape deviation detection, in particular to a pressure vessel shape deviation detection device and method based on laser scanning, the pressure vessel shape deviation detection device comprises a handheld laser 3D scanner and further comprises a frame body, the side, close to a vessel tank, of the frame body is detachably connected with the scanner, and equidistant assemblies are symmetrically installed on the frame body; the ends of the two equidistant assemblies are in contact with the surface of the container tank, the two equidistant assemblies and the scanner form a triangle, and laser emitted by the scanner is perpendicular to the midpoints of the two equidistant assemblies; the ends of the two rotating pieces are attached to the peripheral face of the container tank, it is guaranteed that the distance between the scanner and the container tank is not changed, meanwhile, it can be guaranteed that the central axis of the container tank, the generatrix of the container tank and the path of laser emitted by the scanner are located on the same plane, and therefore the problem that in the prior art, due to distance measurement and scanning angle changes, the scanning precision is poor is solved. And the cylindrical container tank part is not scanned, so that repeated scanning is needed.

The invention discloses a fast synthesis and beam forming method for an arbitrary polarization reconfigurable array. The fast synthesis and beam forming method can be widely applied to a low-cost large-scale phased array. According to the invention, the polarization states of the antenna units and the array beamforming algorithm are switched through the radio frequency switch, and beamforming of any polarization state can be realized under the condition that each antenna unit only uses one radio frequency channel. In the design process, firstly, polarization state arrangement is solved with the information entropy of the polarization reconfigurable array as an optimization target, an optimal array topological structure is obtained, and then the excitation amplitude and the excitation phase are solved with the expected polarization state and the expected scanning angle. The maximum innovation of the invention lies in that under the condition that each antenna unit only uses one radio frequency link, the wide-angle scanning capability of any polarization beam is realized through the irregular distribution of the polarization state.

A sensor comprises a housing comprising a window that extends over angular detection range and scanning-light passes therethrough, a scanning unit inside housing to scan angular detection range by emitting and receiving scanning-light with a rotating mirror to deflect scanning-light. A window monitoring unit detects pollution on window comprising at least a first and second opto-electronic components to establish a test-light path therebetween and attached to housing. The test-light path passes through the window. The window monitoring unit comprises an optical component to redirect the test-light, the opto-electronic components and optical component are arranged where a plurality of test-light paths are generated along angular detection range. The optical component is a lightguide that guides the test-light between first and second opto-electronic components and is attached to and rotate together with rotating mirror so that test-light paths of different angular positions end at at least one same second opto-electronic component.

A detection device and a terminal are applied to the fields of automatic driving, surveying and mapping, intelligent traffic and the like. The detection device comprises a first transmitting module, a second transmitting module, a scanning module and a first receiving module, the first transmitting module is used for generating a first transmitting light beam at a first moment, and the scanning module is used for reflecting the first transmitting light beam at a first scanning angle to form a first reflecting light beam; the first receiving module is used for receiving the first reflected light beam and obtaining first detection data, and the first detection data can be used for indicating the first scanning angle. And the second emission module is used for generating a detection light beam at a second moment, the second moment is related to the first moment and the first scanning angle, and the detection light beam is reflected to the object space by the scanning module for detection. Wherein the first transmitting module, the first receiving module and the scanning module form a certain angle relation, so that the angle of the scanning module can be accurately detected, the working time period of the second transmitting module is accurately controlled, and the detection performance of the detection device is improved.

The invention discloses a wide-angle scanning dual-frequency circularly-polarized common-aperture phased-array antenna, and mainly solves the problems that an existing common-aperture phased-array antenna is difficult to realize dual-frequency aperture multiplexing and small in scanning angle. The antenna comprises N * N rectangular small-sized common-aperture antenna arrays which are closely arranged and a feed transmission structure, and an antenna unit in each sub-array comprises a Ka wave band transmitting left-hand circularly polarized antenna and a K wave band receiving right-hand circularly polarized antenna which are formed by alternately stacking and pressing two substrates made of different materials, the two antennas with different frequency bands adopt different feed forms and different rotary arraying modes, metalized blind holes are added around the antennas, and segmented cutting grooves and gaps are formed in antenna patches. A feed transmission structure comprising a left-handed circular polarization port and a right-handed circular polarization port is correspondingly arranged below the antennas of different wavebands, and each port is connected with a phase shifter. The wide-angle scanning antenna can realize large-wide-angle scanning in a range of 60 degrees, has the advantages of miniaturization, low profile and integration of transmitting and receiving, and can be used for a low-orbit satellite communication system and multi-band fusion and intelligent networking.

Techniques are described for selecting co-channel cells for a LEO satellite system based on defining stay-out distances in UV space units. For example, “stay-out distance” can be defined as x-dB of beamwidth. Each x-dB in UV space remains substantially constant, regardless of the scan angle of the beam. As such, for any cell, regardless of its location in UV space, the responses of co-channel beams not directed at this cell will have dropped off by a consistent amount over the stay-out distance, and the stay-out distance (e.g., the value of x) can be defined such that the drop-off is sufficient to keep responses of co-channel beams not directed at any particular cell to within an acceptable level of interference.

The invention discloses a phased-array antenna control method and system based on impedance matching, a medium and a product, and relates to the technical field of antennas. In the method, before the phased-array antenna works, a target impedance matching parameter is calculated for active input impedance under each preset scanning angle point; establishing a target mapping relation table based on the plurality of preset scanning angle points and the corresponding target impedance matching parameters; during the working period of the phased-array antenna, receiving a target scanning angle, and calculating to obtain a corresponding beam pointing phase value for each antenna unit in the antenna array according to the target scanning angle; determining a real-time impedance matching parameter based on the target scanning angle and the target mapping relation table; and loading the beam pointing phase value to a phase shifter in the feed network, and applying a real-time impedance matching parameter to the dynamic impedance matching network, so that the input impedance of the antenna array is matched with the characteristic impedance of the feed network. By implementing the technical scheme provided by the invention, the radio frequency performance of the phased-array antenna is improved.

The invention discloses a small-scale workpiece three-dimensional reconstruction method based on laser line scanning and application. The three-dimensional reconstruction method comprises the following steps: analyzing a key surface, and planning a scanning path and a scanning angle; performing multi-view scanning to obtain multi-view point cloud data; preprocessing to obtain preprocessed point cloud data; carrying out point cloud registration and splicing to obtain registration and splicing data; and generating a reconstructed high-precision triangular mesh surface as a three-dimensional reconstruction model. According to the technical scheme of multi-view scanning path planning, collection of point cloud data is more accurate and reliable, and parameters do not need to be frequently adjusted due to working condition changes; meanwhile, a multi-view point cloud registration and splicing mechanism and a point cloud feature extraction architecture of a U-net architecture are adopted, more details are reserved for surface geometric features of workpiece point cloud, meanwhile, a curved surface is implicitly expressed through a symbol distance function, and the method has remarkable advantages for digital-analog comparison of a workpiece with a complex profile. Three-dimensional shape matching and error evaluation can be efficiently and accurately carried out.

The invention discloses ground-to-air laser radar detection equipment, a detection method and a storage medium, and relates to the technical field of optical detection. The equipment comprises a laser transmitting module, an echo receiving module and an information processing module, the laser transmitting module comprises a laser, a scanning galvanometer unit and a scanning rotating mirror unit, the scanning galvanometer unit is used for controlling a longitudinal scanning angle, the scanning rotating mirror unit is used for controlling a transverse scanning angle, and a pulse signal transmitted by the laser sequentially passes through the scanning galvanometer unit and the scanning rotating mirror unit and then enters a to-be-measured airspace; the echo receiving module is used for receiving an echo signal of a to-be-detected airspace; and the information processing module is used for calculating return point coordinate information of the target object in the airspace to be measured according to the transmitting time of the pulse signal, the receiving time of the echo signal, the transverse scanning angle and the longitudinal scanning angle, and generating a three-dimensional point cloud image of the target object based on the return point coordinate information. The device provided by the invention is simple in structure, can scan quickly, and realizes point cloud three-dimensional imaging with a wide viewing angle.

The utility model relates to micro - nanometer technical field discloses a kind of vertical comb tooth electrostatic biaxial MEMS micro-mirror structure, comprising: first device structure layer, connecting layer, second device structure layer are stacked from bottom to top;First device structure layer includes first fixed comb tooth and second fixed comb tooth;Second device structure layer includes galvanometer frame and its two sides first torsion beam;First movable comb tooth is provided on first torsion beam;Galvanometer frame is annular;Galvanometer frame inside is provided with mirror body and its two sides second torsion beam;Second movable comb tooth is provided on second torsion beam;First torsion beam, galvanometer frame and second torsion beam are integral structure and electrically connected;First fixed comb tooth and first movable comb tooth are misaligned and correspond to set, second fixed comb tooth and second movable comb tooth are misaligned and correspond to set.The utility model can increase driving force and deflection angle, and then increase operating frequency and scanning angle, while reducing excitation response time.

A system for forming a glass ribbon is provided, comprising a glass molded body for forming glass and a first laser module. The glass molded body is configured to allow molten glass to flow along the surface of the glass molded body to form a glass ribbon. The glass ribbon defines a first surface having a width extending from a first edge to a second edge. The first laser module is configured to generate a first laser beam scanned at least partially along the width of the first surface within a first scanning angle range to apply heat to assist in controlling the thickness of the glass ribbon. The direction of the first laser beam facing the first center within the first scanning angle range strikes the first surface at a first center strike angle that is not perpendicular to the first surface.

The present invention relates to the field of large-field-of-view scenes. Provided is a nonlinear optical large-field-of-view imaging system, comprising a light source system, a laser scanning system and a laser detection system, wherein the light source system is configured to emit laser; the laser scanning system comprises a focusing lens and a galvanometer, wherein the galvanometer is located between the focusing lens and a sample to be detected, the focusing lens is configured to focus the laser on said sample, and the galvanometer vibrates according to a preset scanning angle so as to realize scanning of a laser focus on said sample; and the laser detection system comprises a compound-eye collection structure and a detector, wherein the compound-eye collection structure comprises a plurality of individual lenses which are closely arranged, optical signals generated by said sample are incident on the compound-eye collection structure, and the detector is configured to detect the optical signals collected by the compound-eye collection structure. The present invention can expand a laser scanning imaging range, can ensure that a laser beam always propagates along the optical axis of the focusing lens, and can comprehensively collect signals excited across the entire scanning field of view, thereby improving the efficiency of large-field-of-view imaging and increasing the signal intensity.

The application relates to the technical field of surveying and mapping, and discloses a mine geological surveying and mapping system and method based on artificial intelligence, which comprises the following steps: substituting a sub-mine geological map of each to-be-surveyed mine sub-region into a twin neural network model to determine the geological type of each to-be-surveyed mine sub-region, comparing the geological type with a historical geological type, judging whether the geological type is changed, establishing a geological mark for the corresponding to-be-surveyed mine sub-region according to the geological condition of the target geological type, determining a radar scanning angle based on the sequence of the geological mark, determining whether to adjust the radar scanning angle based on a historical scanning set, when radar scanning is carried out on a changed geological mark or a multi-source geological mark, determining a compensation scheme of a radar reflection signal according to a signal-to-noise ratio, and completing the surveying and mapping of each to-be-surveyed mine sub-region based on the target radar scanning angle or the compensation scheme of the radar reflection signal, so that the stability and reliability of mine geological surveying and mapping are ensured.

The invention belongs to the technical field of steady-state scanning wind tunnel tests of terminal-sensitive projectiles, and particularly relates to a backlight profile-based steady-state scanning parameter measurement system for a terminal-sensitive projectile, which comprises a backlight measurement system for steady-state scanning parameters of the terminal-sensitive projectile and a steady-state scanning parameter resolving system, wherein the terminal sensitive projectile steady-state scanning parameter backlight measurement system comprises an active light source, a high-speed camera and a vertical wind tunnel; the steady-state scanning parameter resolving system comprises an edge line segment acquisition module, a steady-state scanning angle acquisition module and a steady-state scanning rotating speed acquisition module; the obtained steady-state scanning angle and the steady-state scanning rotating speed of the terminal-sensitive projectile are important test data of a vertical wind tunnel terminal-sensitive projectile steady-state scanning parameter measurement test, and a data basis can be provided for design optimization and performance identification of the terminal-sensitive projectile.