The Analysis Of Guidance Accuracy For Active Radar Homing Guidance System

The guidance system of active radar seeker is the guidance form that order guidanceaccuracy very accurate. In process of missile guidance, because of the existence of variouserror sources, active radar-guided precision guidance system is affected. There is amount ofproduce off-target when the missile hit the target. Just because of this，it is necessary forstatistical analysis of the guidance system of active radar seeker. Early on, for guidanceprecision guidance systems otfen rely on statistical analysis of missile flight test data, but bythe economic conditions and the development cycle and other factors, relying on missile flightdata has been unable to meet the guidance precision statistical analysis. With statisticalmethods and computer technology in missile design and development of applications, usingstatistical methods and computer technology for missile guidance precision for statisticalanalysis has become an essential and important means of effective and feasible. Base on theerror source that inlfuent guidance accuracy, analysis the influence extent of guidanceaccuracy.Firstly, design the active radar seeker and build math model of the loop of angle tracking.Base on the performance index of active radar seeker, assess the active radar seeker. Analyzethe function of radar seeker in guidance loop and math model. Simulate the stability andinterference immunity for the loop of angle tracking.Secondly，design the guidance system of active radar seeker and build math model.Analyze the form and operating principle of subsystem. Build the math model of seekercoefficient and flight control system. Analyze and simulate the function of the subsystem.Base on the above, build the guidance system of active radar seeker and the math model. Setup the platform for statistical analysis of guidance accuracy.Thirdly, for the guidance system of active radar seeker，analyze the error source andbuild the math model of error source. Take white noise for example，get through designing ofshaping iflters, simulate the input of color noise. Offer the input for statistical analysis ofguidance accuracy.Lastly, use SLAM and SIMULINK, in the case of error source input，statistically analyzethe guidance accuracy for the guidance system of active radar seeker. For the different error source inputs, plot miss-distance proifle of guidance loop. Analyze the rule of guidanceaccuracy for error source. And the error source input in certain circumstances, analyze the ruleof guidance accuracy for seeker coefficient and active radar seeker.