ID 原文 译文
26335 并提出了用户在高速移动过程中卫星之间的切换策略算法。 And put forward the user in the process of high-speed mobile satellite switch between strategy algorithm.
26336 最后用OPNET仿真软件搭建网络平台，和TDMA进行对比仿真分析，得出结论，实现在大时延情况下，用户的实时接入和不同卫星之间的有效切换。 With OPNET simulation software to build network platform, finally simulation analysis were compared with TDMA, concluded that in case of large time delay, the user's real-time access and effective switching between different satellites.
26337 对信道中大功率放大器产生的非线性特性实现快速有效地均衡是提高卫星通信系统性能关键技术之一。 The nonlinear characteristics of channel power amplifier in realize the quickly and efficiently is a key technology of satellite communication system performance.
26338 文中首先建立了基于volterra级数的卫星信道模型，并分析了信道对二维调制信号所产生的非线性影响； In this paper, we first established a model based on the series of satellite channel, and analyzes the channel of the two-dimensional modulation signal generated by the nonlinear influence;
26339 针对基于最小均方误差实现的volterra均衡器收敛速度慢这一问题，提出了基于复基带volterra模型的部分解耦均衡算法，该算法使均衡器线性权系数收敛于线性滤波器最优解，并用拉格朗日乘数法构造了新的代价函数，使均衡器的各阶权系数满足约束，以达到均衡器各阶权系数之间的解耦。 On the equalizer based on minimum mean square error to realize the problem of slow convergence speed, puts forward the model based on complex baseband on the part of the decoupling equalization algorithm, the algorithm makes the equalizer converge to the optimal linear filter linear weights, using Lagrange multiplier method, a new cost function is constructed, the rights of the equalizer coefficients satisfy constraints, to achieve the decoupling between the equalizer weight coefficient of each order.
26340 仿真结果表明，新算法在保证稳态误差的条件下，其收敛所需迭代次数相对于全耦合的最小均方误差算法从16 000次减小到1 000次。 The simulation results show that the new algorithm under the condition of ensure the steady-state error, and the number of iterations required for its convergence compared with minimum mean square error algorithm of coupling from 16 000 times reduced to 1 000 times.
26341 为解决动基座条件下罗经控制法误差较大的问题，通过捷联罗经的原理框图和算法设计，使用梅森增益公式，分别画出东向通道、北向通道、罗经回路的信号流图。 To solve the problem of error control in dynamic base under the condition of compass, through the principle block diagram and algorithm design of strapdown compass, use the mason gain formula, draw the east to the channel, the north channel, compass circuit of signal flow graph.
26342 对动态条件下罗经回路对准方法的误差进行了深入分析，采用"等效器件误差"的方法，将匀速状态下载体的机动引起的误差看作固定数值的陀螺输出偏差和固定数值的加表输出误差，将匀加速状态下载体的机动引起的误差看作斜线变化的陀螺输出偏差和斜线变化的加表输出偏差，定量给出了匀速、匀加速以及周期性震荡加速度条件下所引起的罗经回路对准方法的水平失准角和方位失准角稳态误差角的表达式，并通过仿真验证，为在载体机动条件下使用罗经回路初始对准方法提供技术支撑。 Compass circuit under the dynamic condition of alignment error of the method carried on the thorough analysis, adopt the method of "equivalent device error", will cause the error of the uniform state vector motor as a fixed value of gyro output bias and fixed value table output error, plus the carrier will be uniformly accelerated condition of motor caused by the error changes as diagonals of gyro output bias and slash the table output deviation, plus quantitative given under the condition of uniform speed, acceleration and periodic shock acceleration caused by the compass circuit level misalignment Angle and the azimuth misalignment Angle of the aiming method of the steady-state error Angle of expression, and through the simulation, for under the condition of carrier mobility compass circuit of initial alignment method is used to provide technical support.
26343 针对传统合成孔径雷达(synthetic aperture radar，SAR)在实现远距离高分宽幅成像中存在的问题，提出了凝视数字多波束SAR的概念。 For traditional synthetic aperture radar (synthetic aperture radar, SAR) in realizing remote high wide problems in imaging, stare at the concept of digital multi-beam SAR is presented.
26344 凝视数字多波束SAR将成像区域在距离和方位向分割为多个子区域进行独立成像，避免传统SAR在高分宽幅成像中的限制； Gaze of digital multi-beam SAR imaging area in the range and bearing to split multiple sub areas to independent imaging, avoid restrictions of traditional SAR wide imaging in high marks;