81 results about "Early-warning radar" patented technology

The multi-target tracking and discrimination system (MOST) fuses with and augments existing BMDS sensor systems. Integrated devices include early warning radars, X-band radars, Lidar, DSP, and MOST which coordinates all the data received from all sources through a command center and deploys the GBI for successful interception of an object detected anywhere in space, for example, warheads. The MOST system integrates the optics for rapid detection and with the optical sensor array delivers high-speed, high accuracy positional information to radar systems and also identifies decoys. MOST incorporates space situational awareness, aero-optics, adaptive optics, and Lidar technologies. The components include telescopes or other optical systems, focal plane arrays including high-speed wavefront sensors or other focal plane detector arrays, wavefront sensor technology developed to mitigate aero-optic effects, distributed network of optical sensors, high-accuracy positional metrics, data fusion, and tracking mounts. Field applications include space monitoring, battlefield artillery, battlefield management, ground defense, air defense, space protection, missile defense, gunfire detection, and the like.

The present invention relates to methods and apparatus for tracking moving objects, such as ballistic missiles and aircraft, on the basis of discrete sensor measurements, such as radar reports and reports from optical sensors. In particular, but not exclusively, the invention is useful for the simultaneous tracking of multiple, fast moving, closely spaced objects, such as deploying ballistic missiles and raids of fast agile aircraft, in which the track dynamics of each object are modelled using a collection of autonomous, i.e. non-interacting, multiple dynamics models. Embodiments of the invention were particularly developed to be effective in tracking ballistic missiles using early warning radar, and similarly demanding and complex battle scenarios.

The invention relates to vehicle-borne scanning semiconductor laser early-warning radar used on a vehicle to detect and calculate the distance and angle of an obstacle ahead and to perform related data processing and warning, and a method for detecting obstacles by the vehicle-borne scanning semiconductor laser early-warning radar. A central line of a receiving optical axis is parallel with a central line of a transmitting optical axis of a laser transmitting antenna sleeve, laser receiving field angle is guaranteed to be approximate to laser transmitting beam divergence angle in design, objective diameter of an laser transmitting antenna is approximate to that of a laser receiving antenna, and accordingly signal attenuation is relieved, the size and weight of equipment is reduced, operational noise of the equipment is lowered, optical axis calibrating process is simpler, product reliability is better, production cost is lower and batch production is facilitated. By the use of the method for detecting obstacles by the vehicle-borne scanning semiconductor laser early-warning radar, information data processing is faster and more accurate and warning is timely.

The invention discloses an automobile collision warning radar information system, which comprises system sub-modules such as a microwave radar module, a signal processing module, a data operation control module, a gravity accelerometer module, a GPS positioning module, a camera module, a speaker, a storage module, and a communication module. The system continuously reads and records radar data such as relative speed and distance information obtained by analyzing target radar signals in all directions during driving, reads and records driving status data, and merges the collision risk simulation array generated by the operation with the system preset The collision risk feature database is mapped and compared to obtain the collision risk level, and the horn is activated to perform a corresponding level of sound alarm; when a high-level collision risk occurs, the system uploads data to the Internet background server, which is applied to service providers for timely rescue and quantitative assessment of specific vehicles and drivers. The driver's future driving collision risk probability.

The invention belonging to the field of radar technology discloses a space-based multi-channel moving target radar receiving and processing system so that a problem of the great influence on the dynamic range of the system by strong clutters in stealth target monitoring can be solved. The system is composed of M antenna sub arrays, M radio-frequency receiving channels, M first real-time delay units, M second real-time delay units, and M-1 operational amplifiers that are arranged in sequence along the moving direction of a satellite platform, wherein the M is larger than or equal to 2. Each antenna sub array sends a received echo signal to one corresponding radio-frequency receiving channel; the radio-frequency receiving channels carry out down conversion on the echo signals to obtain intermediate-frequency signals, divide the signals into two paths, and output the processed signals to the operational amplifiers by a delay way, wherein the delay difference of the two paths is 1/PRF; theoperational amplifiers carry out cancellation on adjacent pulse signals of the adjacent channels to reduce the strength of clutters entering the data acquisition system. Therefore, the requirement for high-order-digit AD chips is reduced; the high effective precision of echo data is ensured; and weak target detection by a space-based early-warning radar is guaranteed.

The invention discloses a transmission compression method for early warning radar track data, and relates to the technical field of radar data transmission methods. The method includes the following steps: the sending end receives the data reported by the radar; the target points of the same batch number have been associated into the track by the radar, and the least square method is used for curve fitting with every 6 points in the track as a unit to obtain The fitting curve parameters of the target track; according to the threat level of the target, upload the fitting curve parameters of the target track and the last point track data in the time period to the receiving end; the receiving end uses the track fitting curve parameters to restore the target track trace. The method makes full use of limited communication capacity to transmit radar intelligence data, and fully utilizes the function of Beidou short messages, so that it can become a means of early warning radar emergency information transmission, which has far-reaching military and strategic significance.

The invention relates to a method for preparing a metal film on a polyimide substrate, and belongs to the technical field of space-based early-warning radar antennas. In the method, a laser shock processing technology is introduced in a metal film magnetron sputtering deposition process, accordingly, the metal film deposition process and the laser shock processing process are alternately carried out, residual stress produced in the metal film deposition process is reduced, and the problems of curling deformation and cracking disengagement caused during preparation of the thick metal film (withthe thickness larger than or equal to 5 micrometers) are solved. By means of laser shock processing, the microstructure of the metal film can be changed, surface defects of the metal film are reduced, the specific resistance of the metal film is reduced, the electrical property and mechanical property of the prepared metal film/polyimide composite film are improved, and meanwhile the effective preparation method is provided for preparing high-quality high-precision low-weight space-based missile early warning radar flexible film antennas in China.

The invention provides an automatic sensing and voice alarming system for edges and holes, which is used for solving a technical problem that the existing edge and hole protection structure is simple, low in intelligent degree and easy to have potential safety hazards. The automatic sensing and voice alarming system for edges and holes comprises a protective fence and an LED lamp strip, and is characterized in that the LED lamp strip is arranged around the protective fence, the protective fence is fixedly provided with a host box, a voice alarm and an early warning radar, and the voice alarm and the early warning radar are fixed at the upper part of the protective fence; the host box is internally provided with a host control terminal, the host control terminal is connected with the voice alarm, the early warning radar, the LED lamp strip and a mobile terminal, and the host control terminal is further connected with a power line and a cascading network line. The automatic sending and voice alarming system for edges and holes detects the operating personnel entering a dangerous area in real time through an infrared scanning technology, the LED lamp strip gives out a lamplight prompt, and the voice alarm can immediately remind the operating personnel entering the dangerous area to be away from edges and holes in voice, thereby improving the safety management level, and effectively avoiding occurrence of safety accidents.

The invention relates to a special aircraft capable of lunching aluminum paper to replace a jamming bomb for teenager national defense scientific literacy education and training. The aircraft comprises an aircraft body, a left wing propeller, a right wing propeller, a left wing, a right wing, a nose main landing gear pulley, a rear landing gear left pulley, a rear landing gear right pulley, an empennage recoil jamming bomb launching cannon, an empennage rotary early warning radar, the aluminum paper, a control cockpit, an empennage, a cockpit door, an outer salute controller module remote control system and an outer aircraft remote controller. The special aircraft capable of lunching the aluminum paper to replace the jamming bomb for the teenager national defense scientific literacy education and training has the advantages and characteristics that the lower part of the back empennage of the aircraft is fixedly provided with the empennage recoil jamming bomb launching cannon which is used for remotely controlling to launch the aluminum paper to replace the jamming bomb, the remote controlling on the flight of an airborne early warning aircraft by the outer aircraft remote controller is vividly simulated, and the blank of the field in the foreign and domestic military model markets is filled.

The invention discloses a thunder and lightning comprehensive detection early warning system and a thunder and lightning detection method thereof. The system comprises an atmospheric electric field detection module which is used for detecting a characteristic value A, at least containing electric field data, of thunder and lightning cloud in a specific region; the meteorological radar module is used for detecting a characteristic value B, at least containing geographical position data, of the thunder cloud in a specific area; and the system module is used for connecting the atmospheric electric field detection module and the meteorological radar module and forming lightning early warning information through combination of the received characteristic value A and the received characteristicvalue B. According to the invention, a meteorological radar and atmospheric electric field equipment are combined, a meteorological radar device is embedded into an atmospheric electric field instrument, and radar detection echo data is converted into an echo intensity color map to be superposed on a map, so that a lightning detection early warning radar system is formed.

The present invention relates to a time-division multiplexing technology-based networked ground-based radar semi-physical system. The system includes an X-band command and control radar semi-physical verification system, a Cobra Dane radar semi-physical verification system and an early warning radar semi-physical verification system; the three verification systems work jointly so as to simulate required battlefield environments more completely, and therefore, fidelity is high, implementation possibility is higher; and a time-division technology, semi-physical model and functional auxiliary verification module-combined method is adopted, and therefore, the costs of actually-created semi-physical equipment are decreased, a test method is simplified, and test difficulty is reduced.

The invention discloses an azimuth scanning positioning mechanism and a radar system. The azimuth scanning positioning mechanism comprises a casing, a power module and a flange, wherein the power module is arranged inside the casing; a first opening is disposed at the top of the casing; the flange is disposed over the first opening and is connected with the power module through the first opening;and the power module rotates the flange so as to drive a radar fixed to the flange to rotate and scan. The radar system uses the azimuth scanning positioning mechanism. The flange connection manner increases the field angle of the radar and provides the radar with a larger field of view. In addition, the power module is housed in the casing so as to be compact in structure and easy to transport. The azimuth scanning positioning mechanism solves the defects that the azimuth scanning positioning mechanism of a conventional micro-change sensing early warning radar control system has a fixed fieldangle and a large size and is not easy to carry.

The invention relates to an intelligent managing cockpit for a power supply system. The intelligent managing cockpit is a one-stop decision support system with the cockpit as a form. The key indication state of electric power system operation is shown through various visualization technologies such as a speedometer, a volume column, early warning radar and a radar ball, a decision maker and a manager are helped to orderly tease the mass information of an electric power system, and the real-time states of the electric power system are easily and visually monitored and sensed; by means of the state sensing means, the abnormal key index is sensed in time; by means of the knowledge finding and other advanced computing technologies, tendency preconceiving, knowledge mining and situation early warning are achieved, and the managing cockpit suitable for the characteristics of a power supply system is manufactured.

The invention discloses a tunnel deformation monitoring and early warning radar system, which comprises a deformation monitoring radar module, a router, a central processing unit, a trihedral corner reflector, an alarm system and a cloud platform, and is characterized in that the deformation monitoring radar module comprises a radio frequency module, a radio frequency control module, a communication module and a signal processing module; the central processing unit comprises a communication module, a module control unit, a data processing platform and a data storage unit; the signal processingmodule is used for receiving a command of the central processing unit and transmitting detection signal data to the central processing unit; the central processing unit is used for analyzing receivedecho data, calculating coordinates of a point to be measured according to the analyzed distance information, uploading monitoring information to the cloud platform through the transmission network, and completing communication, data storage, information integration and alarm system driving with the plurality of deformation monitoring radar modules; the system can work normally in various complextunnel environments, and all-weather, full-automatic and real-time monitoring, uploading and early warning can be achieved.

The invention relates to a distributed power grid service monitoring method based on grading indexes, and belongs to the field of power grid service monitoring. According to the invention, the probesare deployed in each service module to acquire real-time data such as page view, click rate, number of visits and the like of various service modules; dimensionless processing is carried out on the collected real-time service data so as to carry out unified monitoring on various service data, so that great difference of monitoring results due to different types and dimensions of the service data is avoided; the business monitoring indexes are classified and graded by using a decision tree algorithm principle; global optimization selection is carried out on various monitoring index thresholds subjected to classification and grading processing by using an ant colony algorithm; an index group threshold early warning radar map is established, so that the busy degree of each power grid serviceserver is monitored in real time, server resources are reasonably scheduled, and the problem that the whole service system stops operating and even collapses due to access congestion in a certain service field is solved.

The invention relates to radar traffic pre-warning phonetic cueing device. Emission radar is set on the ground. The relevant radar phonetic pre-warning cueing signal can be broadcasted by the carried radar receiver for the driver at traffic crossing, hazardous location etc by radar antenna short distance phonetic wireless transmission technique which is more convenient, exact, and safer compared with the figure and words type information gained from the GPS carried radar screen display.

The invention discloses a control device for realizing fast variable polarization of an electromagnetic wave. The device comprises an attenuator, a phase shifter, a power amplifier and an antenna A, wherein the attenuator, the phase shifter, the power amplifier and the antenna A are successively connected in a branched circuit A. The device further comprises an attenuator, a phase shifter, a poweramplifier and an antenna B, wherein the attenuator, the phase shifter, the power amplifier and the antenna B are successively connected in a branched circuit B. The antenna A and the antenna B are orthogonally placed in an oblique 45-DEG manner. A radar signal which is generated by a radar signal source is divided into two paths through a power divider. One path of the radar signal flows over thebranched circuit A, and the other path of the radar signal flows over the branched circuit B. The radar signal which flows over the branched circuit A successively passes the attenuator, the phase shifter and the power amplifier, and afterwards is fed into the antenna A. The radar signal which flows over the branched circuit B successively passes the attenuator, the phase shifter and the power amplifier, and afterwards is fed into the antenna B. The signal which is radiated from the antenna A and the antenna B is in a synthetic polarization state in a space. The device according to the invention can quickly realize variable polarization and can simulate modern enemy air early-warning radar electromagnetic interference and clutter interference prevention, and an electromagnetic wave fast variable polarization characteristic with improved target identification reliability.

The invention discloses an optimized designing method for a space-based early-warning radar power-aperture product. The method comprises the steps of firstly determining residence time of a single wave bit beam by means of a radar equation; performing dual restrictions on the power-aperture product by means of single wave bit highest available wave beam residence time and an area coverage rate index, establishing an optimizing model and solving, and finishing optimized designing of the power-aperture product. According to the method of the invention, optimized designing is performed on the power-aperture product according to a characteristic that a radar necessary action distance changes along with earth surface geometry in detecting an area on the earth surface by the space-based early-warning radar; an optimizing result can be minimized under a precondition of satisfying a requirement for detecting performance and an area coverage rate index. Compared with a traditional method, the method of the invention greatly reduces the requirement for the power-aperture product. The method according to the invention has advantages of low operation amount, high realizability and high suitability for multiple antenna forms and multiple space-based platform systems.

The invention relates to a flip folding device, in particular to a flip folding device for a mobile early warning radar antenna array. The flip folding device is composed of a shell, a cover plate, aplanetary gear mechanism, etc. A limiting groove is correspondingly formed on the shell and the cover plate. A transmission shaft of the transmission motor fixed on the shell extends into the shell. Aworm rod is arranged on the upper part of the transmission shaft, and a worm wheel is arranged on the output shaft fixed on the side. The worm wheel rotates around the output shaft through meshing transmission with the worm rod. The output shaft is connected with the worm wheel as a whole through the sun gear external gear installed by the bearing. The worm wheel drives the sun gear external gearto rotate around the output shaft. The sun gear inner ring gear of the planetary gear mechanism installed on the output shaft is installed on the inner wall of the shell corresponding to the sun gearouter gear, and the planetary gear A, the planetary gear B and the planetary gear C of the planetary gear mechanism are meshed and connected with the sun gear outer gear and the sun gear inner ring gear. The planet carrier is equipped with a limiting rod corresponding to the position of the planetary gear A. The fast folding and self-locking performance is high, the volume is small, the structureis stable and the reliability is good.

The invention discloses an automatic calibration method and device for the installation angle of a collision early warning radar. The method specifically comprises the steps that radar data fed back by an on-the-way target detected by an installed radar and traveling tracks based on different data sources are collected in the traveling process of a vehicle, first calibration is conducted on the installation position of the radar through the two sets of traveling tracks with the different sources, and second calibration completed based on the radar detection data is put forward; when the collected radar detection data meet the quantity requirement, a second calibration result is stored; and if the radar detection data quantity does not meet the precision requirement due to the fact that thedata quality fed back by the on-the-way target is poor or the target quantity is insufficient, the second calibration can be omitted, and a first calibration result is stored. Thus, according to thecalibration mode, a specific space and a specific station do not need to be set, the calibration mode does not depend on specific auxiliary facilities, auxiliary tools and other conditions, the calibration mode can be suitable for various manufacturer vehicle types, and therefore the radar position calibration operation can be completed efficiently, economically and conveniently.

The invention discloses a space target radar orbit determination real-time identification method and device, and a storage medium. The method comprises the steps: obtaining target trace point data; carrying out coordinate transformation on the target trace point data; judging whether the number of orbits exists in the target trace point data or not; carrying out initial orbit determination according to the target trace point data to obtain an initial orbit number; executing track improvement according to the target trace point data, and thus obtaining the precise orbit number; and executing orbit matching according to the target trace point data. Through initial orbit determination, orbit improvement and orbit matching operation, the space target observed by the radar can be quickly and effectively identified and successfully matched with a corresponding target in a target database, the response time required by the space target from discovery to identification is effectively shortened, and the early warning monitoring capability of the early warning radar for the space target is effectively enhanced.

The invention discloses a radar antenna lifting mechanism design, which relates to a communication antenna in the meteorological communication field. The radar antenna lifting mechanism design is composed of a fixing mechanism, a screw rod, a sliding block, a two-side cushion block, a central cushion block, and a swinging mechanism, wherein the fixing mechanism is fixed on two outer side surfaces of an azimuth box by using fasteners; the screw rod is movably arranged on the fixing mechanism; the sliding block and the screw rod are in threaded connection and then arranged on the fixing mechanism; the two-side cushion block is movably arranged inside the fixing mechanism on the sliding block; the swinging mechanism is movably arranged on the fixing mechanism by using a bolt; the central cushion block is movably fixed on the fixing mechanism by using a bolt; and the upper end surface of the swinging mechanism is detachably arranged and connected with the lifting mechanism. The invention provides an antenna servo device which is simple in structure, convenient to mount and maintain and high in precision. The mechanism of the invention also has advantages of good mechanical structure technological performance, light weight, low cost, good electrical performance and the like, and is particularly suitable for serving as a weather early warning radar antenna servo device.