matrix n. (pl. matrices 或matrixes) 1.【解剖学】子宫;母体;发源地,策源地,摇篮;【生物学】衬质细胞;间质;基质;母质。 2. 【矿物】母岩;脉石;【冶金】基体;【地质学;地理学】脉石;填质;杂矿石。 3. 【印刷】字模;型版,纸型;铸型,阴模。 4.【阵】(矩)阵,方阵;母式;【物理学】间架;【无线电】矩阵变换电路。 5.【染】原色〔红黄蓝白黑五种〕。 the matrix of a nail 【解剖学】指甲床。
The major research works are divided into five sections , including warship bearings - only tracking maneuver research , warship bearings - only tracking research , multi - warships passive data association research , multi - warships passive location research and the engineering implementation of bearings - only passive location systems . the detailed research works are outlined as follows : ( 1 ) a method of evasion factor matrix is presented , which can add the possible patrol zone of targets ( enemy ' s warships ) according to intelligence , and the land and island information provided by electronic chart to the modified gain extended kalman filter , and modifies state equation . it can improve the location precision of the modified gain extended kalman filter 研究内容共分五个方面,分别是单舰纯方位无源定位机动研究、单舰纯方位无源定位跟踪研究、多舰无源数据关联研究、多舰纯方位无源定位研究以及舰艇纯方位无源定位系统的工程实现,主要完成了如下的工作: 1提出一种规避因子矩阵的方法,把根据情报获得的目标(敌舰艇)可能活动区域,以及电子海图提供的陆地岛礁信息加入修正增益推广卡尔曼滤波器中,对目标状态方程进行修正处理,可提高修正增益推广卡尔曼滤波定位算法的定位精度。
Abstract : starting from the definition of weight , the paper derives the relaton detween the change of the a priori unit weight weight mean error with the result of adjustment . lt is found that the change has influence only on the exploring effect of the posteriori unit weight mean error and gross error and the coordinated factor matrix , and no influence on all other adjustment results 文摘:该文从权的定义出发,导出了先验单位权中误差的变化与平差成果的关系,发现其变化仅对验后单位权中误差、粗差探测效果和协因数阵有影响,对其它平差成果均无影响。