The effect of local oscillator syntonization error and triggering time synchronization error on bistatic sar imagery are analyzed based on their error models . useful simulation results are provided for system design 本文重点研究了双基地sar本振相位同步误差与触发时间同步误差对成像的影响,建立了误差模型,给出了仿真试验结果,为系统设计提供了参考依据。
Based on research of the antenna assemble procedure , the simulation model of the reflector is set up and error modeling and simulation of position of stick holes , grid bar acrossing the hole and rms of reflector face are achieved 在分析栅格天线装配过程基础上,建立了其反射面装配的仿真模型,并对栅支板中心圆孔位置误差、栅条穿人误差和栅面误差进行了建模与仿真计算。
Due to the antenna , the estimated precision of the doppler center isn ’ t good . the platforms ’ motion is complex and the motion compensation is difficult . the last chapter gives the motion errors model , and then analyzes the affection of the motion errors 建立了运动误差模型,分析了运动误差对成像的影响,给出了天线在水平方向指向偏差,沿径向及航向方向的运动误差的仿真结果。
Also , the attitude algorithm of the strapdown inertial system of shipboard missile is investigated . on the basis of analysis the sins error model , computer simulation of the sins error are given in accordance with the stochastic error of the inertial instruments 此外,还对舰船捷联姿态算法进行了研究,并在分析捷联系统误差模型的基础上,针对惯性元件的随机误差给出了捷联系统的误差仿真。
The main originalities of this dissertation are as follows : the dynamic error models of the typical units of measurement systems are discussed . on this basis , the theory and method are developed of the decomposition and tracing of dynamic measurement errors 本论文的主要研究内容和创新性工作如下:研究了测量系统典型单元的动态测量误差模型,在此基础上,提出了动态测量误差分解与溯源的理论与方法。