CAJ | 학술논문

激光陀螺一般在外部采用模拟调幅方式进行抖动加噪,通过变压器实现功率驱动.变压器体积大,驱动电路复杂,文中设计了一种基于FPGA的脉宽调制(PWM)抖动偏频系统,能够在激光陀螺内部实现抖动驱动和随机噪声注入,解决了激光陀螺数字化必须解决的关键技术.仿真和实验证明该方案能够满足激光陀螺抖动偏频系统的要求.
격광타라일반재외부채용모의조폭방식진행두동가조,통과변압기실현공솔구동.변압기체적대,구동전로복잡,문중설계료일충기우FPGA적맥관조제(PWM)두동편빈계통,능구재격광타라내부실현두동구동화수궤조성주입,해결료격광타라수자화필수해결적관건기술.방진화실험증명해방안능구만족격광타라두동편빈계통적요구.
Generally speaking, ring laser gyroscope (RLG) adopts the mode of amplitude modulation (AM) externally for dithering and pulsing noise, and it uses transformer to drive power. Considering the bulky of the transformer and the complexity of driving circuit, a pulse width modulate (PWM )dithering frequency deviation system was designed by using field programmable gate array (FPGA), which enabled dither driving and nonlinear random noise infusion in the bowels of the ring laser gyroscope,and it has resolved the key technologies which we must resolve in digitalization of the ring laser gyroscope. The simulation and experiments show that the method can meet the requirement of the dithering frequency deviation system for the RLG; in addition, it realizes the integration of dithering frequency deviation system and RLG.