Embedded Design Integrated Optoelectronic Sighting System

Integrated optoelectronic sight is targeting system fusion fire control technology, which can improve the light weapon firing accuracy and give full play to the combat efficiency of the weapons. Today is the era of new concepts of military transformation, the emergence of integrated electro-optic gun sight provides technical support for the modern information warfare. According to the actual demand, this paper designed a kind of integrated optical sighting system combined with embedded technology.In introducing the system on the basis of functional components, this paper studies the digital magnetic compass error compensation which is the key technology of the system and analysis of the attitude error cause. Due to the limitation of all-attitude error compensation method that there will be residual error compensation, this paper propose a optimize compensation method based on the geomagnetic field component and then established the optimization model. The particle swarm optimization (PSO) algorithm is used to estimate the model parameters. The proposed method is turn out to be right after being verified by MATLAB. Next, the system hardware and software is designed according to the project requirements. The hardware system based on ATmega2560microcontroller core to complete system control and data processing, the peripheral circuit comprises a MAX7456video character overlapping circuit, ranging control circuit, communication circuit. On the software side, this paper design SPI communication program and specialized character library for the OSD system, at the same time, the data validation program is designed to ensure reliable data transmission.Finally, the experiment of the magnetic compass and system debugging is designed. The magnetic compass experimental results show that:the error compensation method proposed in this paper improves the10%～20%on the basis of heading measurement accuracy of common all-attitude error compensation, which gas high practical value. Debugging experimental results showed that:the main function module can to run be stably and reliably, which can meet the actual requirements.