现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2014年
3期
61-64
,共4页
刘文强%韩娜%顾泽元%陶贵丽
劉文彊%韓娜%顧澤元%陶貴麗
류문강%한나%고택원%도귀려
多通道ARMA信号%多段辨识方法%多重递推辅助变量法%信息滤波器
多通道ARMA信號%多段辨識方法%多重遞推輔助變量法%信息濾波器
다통도ARMA신호%다단변식방법%다중체추보조변량법%신식려파기
multi-channel ARMA signal%multi-stage identification method%multidimensional recursive auxiliary variable method%information filter
对带未知参数的多传感器多通道自回归滑动平均(ARMA)信号,采用多维递推辅助变量(MRIV)方法得到自回归模型参数估值,通过Gevers-Wouters算法辨识滑动平均模型参数估值,再用相关方法得到噪声方差的估值。把所有的估值都代入到最优分布式融合信息滤波器中得到自校正分布式融合Kalman信息滤波器。该滤波器具有渐近全局最优性,一个多通道信号仿真例子验证了其有效性。
對帶未知參數的多傳感器多通道自迴歸滑動平均(ARMA)信號,採用多維遞推輔助變量(MRIV)方法得到自迴歸模型參數估值,通過Gevers-Wouters算法辨識滑動平均模型參數估值,再用相關方法得到譟聲方差的估值。把所有的估值都代入到最優分佈式融閤信息濾波器中得到自校正分佈式融閤Kalman信息濾波器。該濾波器具有漸近全跼最優性,一箇多通道信號倣真例子驗證瞭其有效性。
대대미지삼수적다전감기다통도자회귀활동평균(ARMA)신호,채용다유체추보조변량(MRIV)방법득도자회귀모형삼수고치,통과Gevers-Wouters산법변식활동평균모형삼수고치,재용상관방법득도조성방차적고치。파소유적고치도대입도최우분포식융합신식려파기중득도자교정분포식융합Kalman신식려파기。해려파기구유점근전국최우성,일개다통도신호방진례자험증료기유효성。
For multisensor and multi-channel autoregressive moving average(ARMA)signal with unknown parameters,its autoregressive model parameter estimators are obtained by multi-dimensional recursive instrumental variable algorithm. The moving average model parameter estimators are identified through Gevers-Wouters algorithm,and the noise variances estimators are ob-tained with the correlation method. All of the estimators are substitute into optimal distributed fusion information filter to obtain self-tuning distributed fusion Kalman information filter,which has asymptotic global optimality. The effectiveness is verified through a multi-channel signal simulation example.