Therefore , according to the mobility of the aircraft , the present study builts a multi - static location system , which uses the measurements detected by active or passive airborne sensors , when the aircraft is at the different positions . this study proposes two methods for locating sonobuoys . the first one is using aircraft - to - buoy slant range information 根據飛機的機動性,本文構造了使飛機到達不同點獲取相同的測量信息而實現定位的多基地定位系統;依據機載有源無源探測器所能獲得的測量量,提出了兩種定位方法:斜距離測量定位法和基于卡爾曼濾波的方位測量定位法。
The implement of direction finding cross location and errors analysis are on the focus . the multi - warships bearings - only tracking algorithm based on direction finding cross location and distributed multi - warships bearings - only tracking are also presented . ( 6 ) the observation prerequisite of single warship bearings - only tracking is analyzed , and optimal maneuver of the observer warship is discussed 5研究了多艦純方位跟蹤的算法,把多艦純方位跟蹤分成集中式跟蹤和分布式跟蹤兩類,并分別進行了分析比較,重點研究了測向交叉定位法的實現及誤差分析,給出了基于測向交叉定位的多艦對運動輻射源的跟蹤算法和基于信息融合的多艦純方位分布式跟蹤算法。
For supporting multilevel embedding domains , linear table instead of multilevel table is used to make the implementing of information tables management ( such as symbol table and constant table management ) simple and effective . to fulfill the searching algorithm of symbol table and constant table , an assistant table is introduced to solve the problem caused by the use of hash algorithm 在信息表管理方面,沒有采用多級的表組織方式,而采用了線性的表組織方式,簡單高效地實現了對作用域多層嵌套的支持;在表的查找算法的實現中,通過輔助表的引入,解決了符號表和常量表的順序填寫法與hash算法中表項記錄的hash函數定位法之間的矛盾這一難點。
Whether there is damage in composite material or not is determined by four methods : the damage detection method based on extreme value theory , the damage detection method based on ellipse technique , the damage detection method based on four points arch technique and the damage detection method based on nerve net 研究四種損傷定位方法的原理,即:基于極值理論的損傷定位方法、基于橢圓技術的損傷定位方法、基于四點圓弧定位法的損傷定位方法、基于神經網絡技術的損傷定位方法。
4 . through our research , the whole measuring scheme is finalized for pulse - counting method with analog intervene chosen to measure distance , the differential coefficient method based on the least - squares curve fitting based on power functions chosen to measure velocity and qd optical spot location method chosen to measure angle 4 .通過研究,最終確定了以模擬插入脈沖計數法測距,冪函數族基最小二乘曲線擬合微分法測速,四象限探測器( qd )光斑定位法測角的脈沖激光雷達整體測量方案。
Chapter 3 considers location of a stationary target . after introducing the nonlinear filtering technique of particle filtering , location algorithm is implemented by particle filtering . on the base of fusing information of bearing and distance , a fast passive location algorithm based on particle filter is got 在第三章里,在簡單介紹了測向定位的擴展卡爾曼算法之后,主要研究了一種全新的非線性濾波技術-粒子濾波,并在此基礎了提出了基于粒子濾波的測向定位法和快速定位法。