Tail angle restraining guidance method based on sliding mode control

System for testing isolation of guide head of laser terminal guided projectile

The invention discloses a system for evaluating the disturbance rejection rate parasitical loop of a strap down infrared seeker The system comprises a target simulator, a three-axis rotary table, the seeker and an emulation computer, wherein the target simulator simulates the movement relation of a target; the strap down infrared seeker detects the infrared signal source of the target simulator, and outputs a missile-target LOS (Line of Sight) rate obtained after decoupling filtering to the emulation computer, the emulation computer calculates the attitude and position information of a missile according to a practical kinetic model of the missile and transmits the attitude angle of a missile body to the three-axis rotary table to simulate the movement of the missile body; the emulation computer figures out a theoretical missile-target LOS rate and transmits the theoretical missile-target LOS rate to the target simulator to simulate the movement of the missile-target to form an entire closed-loop testing system In the whole process, the emulation computer stores test data for final disturbance rejection rate calculation The system eliminates the problem of singular point in the traditional disturbance rejection rate testing method, and enables that the disturbance rejection rate test is more accurate and a testing system is closer to the practical combat mode of the missile

System for evaluating disturbance rejection rate parasitical loop of strap down infrared seeker

The invention provides an injection-type semi-physical simulation system for a laser-guided missile, and belongs to the technical field of laser-guided missile development. In order to overcome the projection diffuse reflection type defect, the system comprises a simulation platform, a missile guider, a guidance, navigation and control (GNC) system, a target simulation device, a posture simulation device, an acceleration simulation device, a load simulation device and a launch-control device. The simulation platform mainly undertakes building and calculating of all mathematical models and is communicated with other equipment participating in simulation. The missile guider receives a laser signal sent from the target simulation device to form light spot gravity center location information, and a target orientation is supplied to the GNC system through a control area network (CAN) bus network. The GNC system is installed on the posture simulation device. Light emitting from the target simulation device is injected into the missile guider to simulate target movement. The posture of the missile is simulated through the posture simulation device, and the angular motion characteristics of the missile in the air are reproduced. Output of an accelerometer is simulated through the acceleration simulation device. The load simulation device is used for simulating the aerodynamic moment on a steering engine in the flying process of the missile. The launch-control device mainly completes self-checking and confirming of equipment, data loading and launching instructions on the missile.

Injection-type semi-physical simulation system for laser-guided missile

The invention discloses an industrial radio control system semi-physical security experiment platform. The platform comprises a simulation module, a controller host computer, a monitoring site, a programmable logic controller (PLC), an industrial radio communication device and a universal software radio peripheral (USRP) for simulating attacks. The simulation module is used for erecting a virtual controlled object and simulating different industrial scenes. The controller host computer is used for simulating different control algorithms. The monitoring site monitors in real time state signals, control signals and the like in a system operation process and stores correlation data in a database. The USRP is used for simulating a typical industrial radio attack mode. According to the experimental platform, through simulating a typical industrial object and a control algorithm, an attack on an industrial radio channel is simulated by use of the USRP, and the security of an industrial radio protocol and the control system performance under a typical attack are analyzed. The industrial radio control system semi-physical security experiment platform is low in system cost and can be applied to simulation of a typical industrial control object and a corresponding control algorithm and evaluation of the influence of a typical industrial radio attack on an industrial control system.

Industrial radio control system semi-physical security experiment platform

The invention relates to a laser terminally guided projectile and particularly discloses a turntable for the semi-physical simulation of the laser terminally guided projectile. The turntable comprises a table body and a control cabinet, wherein the table body is used for simulating a projectile body attitude motion characteristic or a projectile body-target relative motion characteristic, can be used for load mounting and is provided with an angle measurement element so as to supply a corner signal to serve as position feedback and speed feedback; the control cabinet is used for realizing the control over the table body; the control cabinet comprises an upper computer and a lower computer; the upper computer can interact with an operator through a human-machine interface so as to realize control instruction input, configuration data correction, safety protection, system state monitoring, and data receiving and processing for the turntable; and the lower computer can be connected with the upper computer through a high-speed serial interface and connected with the table body through a cable so as to complete the real-time control over the table body.

A turntable for semi-physical simulation of a laser terminal guided projectile

Semi-physical simulation system for developing laser terminal guidance ammunition round

The invention discloses a shake measuring device, which comprises a measuring module with a triaxial accelerometer and an angular rate gyro, a data processing module and an auxiliary module, wherein the measuring module is used for measuring the acceleration and the roll angle rate of a satellite under an inertia shake coordinate system; the data processing module is used for collecting a measurement signal measured by the measuring module, and processes and stores the collected data; the auxiliary module is used for regulating the voltage of a power supply carried by the satellite into a proper voltage so as to supply power to the measuring module and the data processing module; and after the noise of the measuring signal output by the measuring module is filtered, the measuring signal is input to the data processing module The device circuit has the advantages of simple structure, low cost and good impedance matching performance and is economic and practical, and the shake degree of the solid of revolution of the satellite at each revolving speed can be accurately measured

Shake measuring device

The utility model discloses a seeker isolation testing system of a laser terminally-guided projectile and is applicable to testing of the isolation of a seeker of the laser terminally-guided projectile. The seeker isolation testing system comprises a signal simulation part, a motion simulation part and a testing master control part, wherein the signal simulation part comprises a laser target simulator, a two-dimensional swinging mirror and a reflecting curtain and is used for generating laser light which can be received by the seeker; the motion simulation part comprises a triaxial rotary table which can load the seeker, and is used for simulating the attitude motion of a projectile body; the testing master control part is used for controlling a table body according to a predetermined mathematical model to simulate the attitude motion of the projectile body and receiving test data which are sent by the seeker to perform isolation performance analysis; the laser light which is generated by the laser target simulator is projected to the reflecting curtain through the two-dimensional swinging mirror; and the seeker receives the laser light which is reflected by the reflecting curtain. The seeker isolation testing system of the laser terminally-guided projectile has the advantages that the laser light is not directly projected to the seeker, so an operator can obtain accurate and effective experiment data about seeker isolation testing, and a real weapon system campaign mode can be well simulated.

Rui Zong

Papers

A turntable for semi-physical simulation of a laser terminal guided projectile

Semi-physical simulation system for developing laser terminal guidance ammunition round

System for testing isolation of guide head of laser terminal guided projectile

Shake measuring device

Seeker isolation testing system of laser terminally-guided projectile