一种利用测角信息改善空中机动平台无源定位精度方法  

A method of improving aerial mobile platform passive location's precision using angular measurements

作　　者：夏清涛[1] 张国栋[1] 杨揆[1] 

机构地区：[1]海军工程大学电子工程学院,湖北武汉430033

出　　处：《舰船科学技术》2012年第3期91-94,共4页Ship Science and Technology

基　　金：海军工程大学自然科学基金资助项目(HGDQNJJ10024)

摘　　要：针对机载光电测角信息采样率远高于飞机导航数据采样率的情况,为了充分利用测角信息,提出了一种利用高频率光电测角信息改善空中机动单站平台目标定位精度的方法。在进行数据的时间配准前通过对测角信息进行线性滑动平滑,消除了测角信息的随机噪声,进而提高了定位精度和稳定性。试验结果验证了该方法的有效性,对目标跟踪的工程实践具有一定指导意义。Aiming at the situation that angular sampling rate of aircraft is much higher than the rate of aircraft navigation data sampling, in order to make full use of angular measurements, a method of improving the aerial mobile platform passive location＇s precision is presented up, which uses high-frequency angular measurements. Before the data time registration,using linear slippage smoothness to smooth angular measurements, eliminating the random noise of angular measurements, so the location＇s precision and stability get improved. Experimental results show the effectiveness of this method, the method has a certain significance on the engineering practice of target tracking.

关 键 词：线性滑动平滑 最小二乘 空中机动平台 光电载荷 

分 类 号：TN953[电子电信—信号与信息处理]