例句與造句

1. Backed up by the soplat theory based on particle kinematics , the second chapter of this paper presents with analysis and simulation of several single observer passive measurement models , which uses such relative movement parameters as bearings changing rates and centrifugal acceleration information on the basis of bearings measurements . in the third chapter , the observability of location respectively using bearings and its changing rates information and centrifugal acceleration information is analyzed , and its observable condition is got . the fourth chapter puts forward the modified covariance extended kalman filtering ( mvekf ) against the defect of traditional extended kalman filtering ( ekf ) , whose performance is simultaneously compared in the chapter with the performance of ususal tracking algorithm such as ekf , mgekf , iekf by computer simulation
   在近年來提出的基于質(zhì)點運動學(xué)原理的單站無源定位理論基礎(chǔ)上，本文第二章提出了幾種在角度測量的基礎(chǔ)上增加角度變化率及相對運動的離心加速度等運動學(xué)參數(shù)的單站無源測量模型，并對它們進行了分析和仿真；第三章分別對利用角度及其變化率信息定位和利用離心加速度信息定位的可觀測性進行分析并得到了相應(yīng)的可觀測條件；第四章針對傳統(tǒng)擴展卡爾曼( ekf )方法的缺點，提出了一種修正協(xié)方差的擴展卡爾曼濾波( mvefk )方法，并將其和ekf 、 mgekf 、 iekf等常用的單站無源定位濾波方法進行了性能仿真比較；第五章通過引入雷達機動目標跟蹤方法和模型，提出了利用角度及其變化率對機動輻射源跟蹤的多級噪聲自適應(yīng)方法和imm方法；第六章主要對角度變化率和離心加速度參數(shù)的獲取技術(shù)進行了研究，提出了幾種高精度測量脈沖序列多普勒頻率變化率的方法。
2. It's difficult to find observable condition in a sentence. 用observable condition造句挺難的