ID	原文	译文
54627	在此基础上,将星下点轨迹保持控制问题转化为基于平均轨道根数的相对轨道控制问题,其中参考卫星是虚拟的,仅受到地球引力影响,利用高斯摄动方程建立了包含J2摄动和大气阻力摄动的相对运动方程,基于Lyapunov理论设计了星下点轨迹保持的相对平均轨道根数反馈控制律。	On this basis, the fuses iconic point track keeping control problem is transformed into the relative orbit control problems based on the average track number, the reference satellite is virtual, only affected by the earth's gravity, contains was established based on gauss perturbation equation of J2 perturbation and the relative motion of the atmospheric drag perturbation equation, based on the Lyapunov theory design under the star point trajectory relative to the average number of orbit feedback control law.
54628	仿真结果表明,所设计的星下点轨迹控制律能有效地实现星下点轨迹保持的要求。	The simulation results show that the design of the star point trajectory control law can effectively achieve the star point locus keep requirements.
54629	传统定位方法一般是在假设传感器位置信息准确已知的前提下进行的。	The traditional positioning method is usually under the assumption that sensors under the premise of accurate location information is known.
54630	然而在实际情形中,传感器位置信息往往含有随机误差,这些误差会严重影响目标的定位精度。	In practical situations, however, sensor location information often contain random errors, these errors will seriously affect the location accuracy of target.
54631	针对这一问题,提出了一种存在传感器误差情况下的线性校正TOA定位算法。	In order to solve this problem, this paper proposes a case of sensor error exists linear correction TOA positioning algorithm.
54632	首先将非线性TOA定位方程组转化为一组关于目标位置的伪线性方程,利用加权最小二乘估计进行初始求解;然后在此基础上把伪线性方程组转化为关于估计偏差的求解问题,进而对初始解进行线性校正。	First convert nonlinear TOA positioning equations into a set of target location of pseudo linear equation, using the weighted least squares estimation for initial solution;Then on the basis of the pseudo linear system of equations into to solve the problem about estimate deviation, and linear correction on initial solution.
54633	在测量误差充分小的情况下分析了该算法的有效性。	In the case of sufficiently small measuring error analysis of the effectiveness of the algorithm.
54634	仿真结果表明该算法具有较好的定位性能。	Simulation results show that the algorithm has better performance of positioning.
54635	为确保重要目标的信息安全,提出了一种二维间歇采样延迟转发的SAR干扰技术,该技术直接攻击SAR的脉内相干特性,使雷达在干扰机附近的距离向和方位向同时产生多个以主假目标为中心对称分布的逼真假目标串,干扰效果取决于距离向和方位向的采样周期和占空比。	In order to ensure the information security of important targets, this paper proposes a two-dimensional intermittent sampling delay forwarding SAR jamming technology, the technology of direct attack intra-pulse coherence properties of SAR, the radar distance near the jammer to and orientation to producing multiple symmetrical distribution for the center with the false target lifelike false target string, interference effect depends on the distance and orientation to the sampling period and duty cycle.
54636	因结合延迟转发技术,产生的距离向主假目标和方位向主假目标将不再重叠,且会偏离干扰机的所在位置,既可得到逼真的干扰效果,又保护了干扰机的安全。	Due to delay in forwarding technology, the distance to the main target and orientation to the main false target will no longer overlap, and will deviate from the location of the jammer, can get real interference effect, and to protect the safety of the jammer.