33results about How to "Improve Simulation Confidence" patented technology

The invention provides a satellite flight control closed loop simulation system based on a component simulator, which is applied to a system comprising a dynamics simulation server, a sensor simulator, an actuator simulator and a space-borne computer, wherein the formula of data output by the sensor simulator to the space-borne computer is the same as that of data output by a practical sensor to the space-borne computer, and the format of data received by the actuator simulator from the space-borne computer, i.e., the format of data input by an actuator is the same as that of data input by a practical actuator, so that the simulation reliability of the satellite flight control closed loop simulation system can be enhanced effectively; the component simulator is adopted instead of a real physical device, so that the simulation system has the advantages of low cost and low complexity; and meanwhile, the simulation system has the characteristics of high generality, high flexibility and high automatic degree, so that the research period of a satellite can be shortened effectively, and the research cost of the satellite is reduced.

The invention relates to the technical field of modeling and simulation, and provides an intelligent shooting decision method of an anti-tank missile detachment, which comprises the following steps of: receiving enemy situation information and determining the target to be shot, judging whether the shooting condition is satisfied, sorting the target to be shot, selecting the missile species, determining the total missile launching amount, and determining the shooting unit and the amount of the missile to be used. The invention is applicable to the decision-making modeling of the autonomous firing of the anti-tank missile unit in the man is not in the loop combat simulation, which basically conforms to the general operational principles and procedurings of the anti-tank missile detachment, with high simulation confidence, which can effectively compensate for the inadequacy of combat scenarios in which the combat mission of the combat entity can only be set according to the combat determination of the belligerent at certain critical times, It does not need to plan the firing action of the anti-tank missile unit in advance in the whole combat process, which reduces the difficulty of drafting the combat scenario, is simple in calculation and easy to realize by programming, and has a good application prospect in the combat simulation of man is not in the loop, especially in the large-scale combat simulation.

The invention provides a sensor simulator, which comprises a simulation server and a data interface converter. The sensor simulator can be simultaneously or separately taken as a sensor simulator for various sensors such as a star sensor simulator, a sun sensor simulator, an optic fiber gyroscope simulator, a magnetometer simulator and a GPS (Global Positioning System) simulator, so that the sensor simulator has the advantages of high generality and high expandability; and moreover, the formula of data output by the sensor simulator is the same as that of data output by a practical sensor physical device in a practical satellite control system, so that access to a satellite control closed loop simulation system is available and the simulation reliability can be enhanced effectively.

The invention relates to the field of modeling and simulation, This paper presents an artillery battalion autonomous firing decision-making method suitable for 'man is not in the loop' combat simulation, The method comprises the following steps: judging enemy situation information, judging shooting force, sorting targets to be shot, determining shooting task, determining damage index, determiningpermissible shooting duration, sorting bomb types, determining shooting force and shooting ammunition (including type and quantity), determining shooting speed, issuing shooting order, etc. The invention has the advantages that the technical proposal is adopted, the invention is a military concept simulation field, basically conforms to the general operational use principle and flow of the artillery battalion, the adopted decision method is simple in calculation and easy to realize, and has good application prospect in the operational simulation, especially in the large-scale operational simulation.

The invention discloses a method and a system for adding a haze effect to driving scene video. The method is characterized by comprising the steps of acquiring haze-free clean driving scene video; calculating atmosphere radiance value information and a depth information matrix corresponding to each frame image in the driving scene video according to a dark channel prior based single-image defogging algorithm; acquiring a haze image model equation according to an atmospheric scattering model, and generating each frame image into a corresponding image with the haze effect according to the haze image model equation, the depth information matrix, the atmosphere radiance value information and preset haze concentration parameters; and synthesizing all of the images with the haze effect into the driving scene video with the haze effect. The method and the system disclosed by the invention realize quick addition of the haze effect to the driving scene video while ensuring good simulation effects, and is high in haze simulation confidence, fast in addition and easy to implement.

The invention discloses a virtual network card-based wireless channel simulation method, which comprises the following steps of: constructing the hardware environment of a simulation model; 2, constructing the simulation environment of the simulation model; 3, configuring initial parameters of simulation members by a user; 4, loading a virtual network card driver on a simulation system to complete internal initialization work; 5, beginning simulation, and performing data transceiving by the simulation members; and 6, finishing the simulation and estimating the performance of a wireless channel. The simulation method has the advantages of flexible configuration, good expandability, transparency for a low level and high reusability. The simulation method ensures the consistency of the simulation environment and real environment; the simulation results are more accurate, so the simulation reliability is improved; and the workload of simulation workers is reduced, the mutual portability of the application in the real environment and the simulation environment is easily realized, and the repeated work of developing a set of application for the simulation environment and the real environment respectively is avoided.

The invention discloses an emulation verification platform and an implement method of a micro-satellite team formation system. The platform comprises an emulation and verification main control platform, an emulation primary component, a plurality of emulation secondary components and a plurality of satellite controllers corresponding to the plurality of emulation secondary components. The emulation primary component and the emulation secondary components are communicated with the emulation and confirmation main control platform through an Ethernet network. The emulation main component is communicated with the satellite controllers through wireless fidelity (WiFi). The emulation secondary components and the satellite controllers are connected through recommend standard 232 (RS232) joints. According to the implement method, emulation procedure is started through the emulation and confirmation main control platform so that a real-time emulation environment of a principal and subordinate construction is established; the emulation primary component starts team formation control and sends a control order to the controllers; a control signal is sent to the emulation secondary components through serial ports after emulating calculation by the controllers; a satellite dynamical model and an environmental model are emulated by the emulation secondary components so that state information of a satellite is offered; and emulation data is sent to the emulation and confirmation main control platform for unified management and analysis. According to the emulation verification platform and the implement method of the micro-satellite team formation system, a complete and complex emulation verification function is offered to satellite team formation flight.

The embodiment of the invention provides a network simulation method and a network simulation device. The network simulation method comprises that: a simulation visualized interactive process positioned in a network simulation platform receives an simulation command sent by a control process positioned outside the network simulation platform in an external process communication mode; the simulation visualized interactive process transmits the simulation command to a corresponding simulation network element process in the network simulation platform in an internal process communication mode; the simulation visualized interactive process receives a simulation result output after the simulation network element process executes the simulation action according to the simulation command in the internal process communication mode; and the simulation visualized interactive process outputs the simulation result to the control process in the external process communication mode, so that the simulation result is displayed and output through the control process. Through the method, a user can simulate an appointed network element required to be simulated flexibly by inputting the simulation command and can obtain the simulation result in real time so as to improve the flexibility and simulation credibility.

The present invention discloses a target simulator real-time drive system based on a DVI interface of a graphics card. The system comprises: a DVI transmission interface, used for establishing a data communication with a graphic workstation and a target simulator; a synchronous transmission control module, used for sending a simulation start signal to a dynamic scene image simulation module based on a field frequency signal output by the DVI transmission interface, and establishing synchronous data transmission with the target simulator; and the dynamic scene image simulation module, used for performing simulation analysis on to-be-tested dynamic scene data acquired from an external device based on the simulation start signal, and storing simulation image data into a frame cache. The present invention further discloses a target simulator real-time drive method based on a DVI interface of a graphics card. The technical scheme provided by the present invention shortens radiation scene output delay, ensures delay stability and thus greatly improves confidence of semi-physical dynamic scene simulation.

The present invention provides a network simulation method in a mobile communication system, and the network simulation method is provided for aiming at the problem that the simulation degree is low in the prior art. The method comprises that 1, parameters participated in the network simulation is initialized; 2, data acquisition is performed, and mode correcting is performed according to the acquired data; 3, the shadow fading variance of all the ground object is calculated in a simulation platform; 4, the path loss of each cell is calculated; 5, a strongest cell pilot carrier coverage diagram is spanned; 6, a traffic density distribution diagram is spanned; 7, a forward link simulation and a reversal link simulation are calculated. The method provided by the present invention is mainly applied to a code division multiple access mobile communication system, and can improves the simulation degree.