The conventional sphere model of earth and circle model of orbit are discarded , and the ellipsoid model and the ellipse model are selected for further research , which achieves a method to determine the target position through the antenna pointing direction . and the spaceborne sar system design and simulation software is brought forth . this software accomplishes sar system coefficients design for antenna area , pulse repetition frequency , signal bandwidth , downlink data rate , radar transmitter power and satellite platform yaw steering 本文从星载雷达的星地几何关系入手，舍弃传统星载合成孔径雷达研究中的球地球模型和圆轨道模型，研究了在地球椭球模型和椭圆轨道模型下由雷达天线确定目标坐标的方法，并在此基础上研制了星载合成孔径雷达系统设计与模拟软件，完成雷达系统天线尺寸、脉冲重复频率、信号带宽、雷达信号数据率、雷达发射功率、卫星平台的偏航牵引等几个方面的系统参数设计以及雷达多普勒特性、雷达系统模糊、雷达定位及精度的分析，最后完成雷达回波信号的模拟。
To overcome the shortages of the traditional proportional guidance in attacking maneuvering targets , the paper firstly established the relative motion models for the anti - ship missile and the target in three dimensions , then based on the optimal guidance law for aiming at non maneuvering targets and the sliding - mode control theory , the optimal sliding - mode guidance law in three dimensions , which was more easily - accomplished in engineering , was derived by making the pitch plane and yaw plane superposition 摘要针对传统比例导引法攻击机动目标的不足，建立了三维空间中反舰导弹和目标的相对运动模型，在研究反舰导弹攻击非机动目标的最优制导律基础上，利用俯仰和偏航两个平面相叠加的方法，结合滑模控制理论设计了工程上易于实现的三维模型下的反舰导弹最优滑模制导律。
Then in this paper the author establishes the simulation model of the probability of smashing the submarine when the segregator of the submarine launched missile carrier sinking in the water and uses the monte carlo ( of or relating to a problem - solving technique that uses random samples and other statistical methods for finding solutions to mathematical or physical problems . ) to simulate the whole process . then the author carrier through much simulating computations and gives the smashing probability at different conditions 在对分离体下沉的各种干扰因素进行了深入的分析后，建立了基于蒙特卡罗方法的潜射导弹运载器分离体砸艇概率的计算模型，并且进行了大量的计算机仿真试验，分别对运载器采用平面弹道，偏航弹道在不同发射深度，不同发射艇速的情况下的分离体砸艇概率进行了仿真计算，给出了不同情况的砸艇概率。
The mathematical simulation results indicate that the above developed method can realize ambiguity initialization within 30 seconds ( 1hz data rate provided ) with above 97 percent success rate as long as the pitch angle motion magnitude of vehicle is not less than 5 , and yield real time attitude resolution precision of 0 . 0742 in yaw , 0 . 0671 in pitch , and 0 . 0867 in roll using the antennae array with 数学仿真实验表明:当俯仰扰动幅度不小于5时,可在30s ( 1hz采样率)内以97 %的成功率实现双星定姿模糊度初始化,并且利用5m基线可达到偏航0 . 0742 、俯仰0 . 0671 、滚动0 . 0867的实时姿态解算精度。
After introduced its task and construct of the controller of the homing gliding missile , the longitudinal and lateral motion equations are provided . a continuous fuzzy - pid control system combined the advantages of fuzzy control and pid control is presented , and could be guaranteed the stability of the system using popov stability criterion . the results of simulation show that the fuzzy - pid control is able to provide a better relative stability and robustness , also have better dynamic and static characteristics than the pure pid control 将模糊控制和pid控制相结合，研究了一种基于模糊pid的连续控制器，利用波波夫稳定判据判定该控制器是渐进稳定的，并将其应用于制导滑翔弹俯仰角、偏航角、滚转角稳定回路中，设计仿真结果表明，该种连续控制器可使系统获得很好的稳定性和鲁棒性，动、静态性能比单纯pid控制都有较大提高。
10 . a experiment is done which apply the gps surveying technology to yaw and speed of the large - scale irrigation system in remote control with other auxiliary sensors . it is shown that gps high accuracy surveying technology based on carrier pha 将高精度的gps偏航距离和速度测量技术应用于大型平移式喷灌机的导向与速度遥测、遥控系统中，配合其它辅助传感器组成实时测量与导航控制系统，试验证明基于载波相位的gps高精度测量技术能否满足大型喷灌机变量控制的各项技术性能要求。
