【摘要】 INS/GNSS组合导航系统是目前组合导航中的主要系统之一,而高度阻尼是其中的一个重要问题。由于惯性系统的高度通道是不稳定的,必须引入气压高度表或大气数据中心等外部高度信息进行阻尼。本文通过对捷联惯性导航系统及INS/GNSS组合系统进行Monter-carlo仿真,研究在捷联系统如何设计高度阻尼网络及网络中参数的选取方法,以及该网络在组合系统的卡尔曼滤波中如何进行处理,并给出实际的仿真结果。更多还原

【Abstract】 In inertial navigation system, the error accumulation of altitude is unsteady, so the outside information sources such as barometric altimeter, etc. should be used to damp the accumulation. In this paper, how to design a net of altitude-damper, how to determine the parameters in the net and how to deal with the net in Kalman Filter of the integrated navigation system are discussed respectively by adopting the method of Monter-Carlo emulation to imitate the strapped-down navigation system and INS / GNSS integrated navigation system. And finally the actual result of the emulation is given.更多还原