Simulation And Evaluation Of The Anti-jamming Performance For Active-Passive Composite Seeker

The past five decades had witnessed four distinct growing stages of anti-ship missile (ASM) development, as well as its significant role as the crucial weapon attacking enemy vessels in naval warfare.The development of modern ship electronic interference makes a sharp decline in anti-ship missile guidance performance. How to improve the precision-guided and anti-interference ability is an urgent need to anti-ship missile. Active-passive composite seeker makes use of the message of active guidance and the message of passive guidance to improve the precision-guided. Combined guidance has become a hot research. By the measurement error coming from noise jamming, building simulation system of combined guidance, analyzing the result of simulation, thus enhances its precision-guided. This thesis comprises five main chapters, and content will be summarized later one by one.The background and significance of this research is briefly specified in Chapter 1, the status of combined guidance are summed up in detail, and the key problem and researching thoughts are shortly put forward for the later interpretation.The principle of combined guidance is introduced roundly in Chapter 2. Firstly, by introducing an attack during anti-ship missile and Ship, the principle of combined guidance is elaborated. Secondly, the principle and accuracy analysis of active guidance and passive guidance are studied. In the last part, by simulating the process of guidance, their performance is compared.Impact of noise jamming to combined guidance is thoroughly analyzed in Chapter 3. Firstly, the impact of noise jamming to radar receiver and signal processing are analyzed. In the last part, switching time, angle measurement accuracy and angle tracking stability are compared in the simulation.The simulation and evaluation of combined guidance is built in Chapter 4. Firstly, track solver, switching time, evaluation indicators are built after analyzing the simulation framework. The INS could make the trajectory more precise and the simulation can show the whole process of attack.In conclusion, Chapter 5 summarizes the whole dissertation particularly in the main work and innovation facets, and then offers several suggestions for the succeeding research.