CAJ | 학술논문

划桨误差的确定与补偿是影响高动态、恶劣振动环境下捷联惯性导航系统速度计算的重要问题.传统的捷联速度算法一般是基于陀螺的角增量信号和加速度计的速度增量信号.当应用于输出为角速率的光纤陀螺捷联惯导系统时就受到局限.针对光纤陀螺捷联惯导系统输出为角速率和加速度的情况,提出了一类新的划桨误差补偿算法,并进行了优化,给出了算法的划桨误差表达式,并进行了仿真分析.结果表明,新的算法精度较传统算法有显著提高.
화장오차적학정여보상시영향고동태、악렬진동배경하첩련관성도항계통속도계산적중요문제.전통적첩련속도산법일반시기우타라적각증량신호화가속도계적속도증량신호.당응용우수출위각속솔적광섬타라첩련관도계통시취수도국한.침대광섬타라첩련관도계통수출위각속솔화가속도적정황,제출료일류신적화장오차보상산법,병진행료우화,급출료산법적화장오차표체식,병진행료방진분석.결과표명,신적산법정도교전통산법유현저제고.
Under the condition of high dynamic angular motion or vibration environment,confirmed and corrected the sculling error was important to calculate the speed of strapdown inertial system .In general,traditional velocity algorithms of strapdown inertial system used increment angular signals of gyroscopes and velocity increment signals of accelerometers.While on condition that the outputs of FOG were angular rate signals.So traditional algorithms were not suitable for FOG strapdown systems.In this paper ,a new sculling compensation algorithm was proposed and optimized and the expression of sculling error of this algorithm was derived.Simulations are performed which indicate that the improved algorithm is more accurate than those traditional ones.