Research Of GPS In The Application Of Projectile Guidance

Long range and high precision are the developing trends of contemporary weapons. Precise beating ammunition firstly is missile, but which can't cosmically be equipped because of costliness.At present, simpile control technique is the best method for advancing the precision of low-cost ammunition inside or outside of the country. It is signality to research.GPS in the application of projectile guidance is researched in the paper. GPS receiver can get the postions of projectile which measure with fixed trajectory.then the windage can be computered .The MCU controls electric steering engine and makes rubber deflexion. Alter fight pose of the pill, and amend terminal windage of the trajectory.Firstly a relevant reference frame is set up, the strength and moment are analysed on the simple control projectile, and the sports equaton with six freedoms based on newdon law and theorem of momentum are formed in the common condition.Sencondly the hardware of GPS simple guided gun is designed. It makes MCU ATmega8535 center of circuit.Jupiter GPS receiver and antenna are also researched.Sofeware design of circuit is then completed.How to receive and deal with data of GPS is also discussed.Finaly simulations of serial communication and PWM are processed by Protues; simulations of trajectory are accomplished by programmed six freedom equations.