| ID | 原文 | 译文 |
| 54787 | 针对导航星座星间链路信号动态特性和工作特点,提出了一种基于星历辅助的自适应捕获方法。 | According to the star navigation constellation dynamic characteristics of a link between the signal and the work characteristics, puts forward a adaptive capture method based on the auxiliary ephemeris. |
| 54788 | 该方法利用导航卫星自有的导航电文对接收信号到达时延、多普勒频移和信噪比进行估计,根据估计结果自适应调整信号捕获的搜索范围、非相干累加次数和判决门限,以减少捕获时间、提高捕获性能。 | This method takes advantage of navigation satellite has its own navigation message arrival time delay of received signal, the doppler frequency shift and signal to noise ratio to estimate, according to the estimation results the search area of the adaptive adjustment of signal capture and non-coherent accumulation times and decision threshold, in order to reduce capture time, improve the capture performance. |
| 54789 | 给出了自适应捕获的设计思路和流程,并结合全球定位系统真实轨道数据进行了仿真。 | Adaptive to capture the design thinking and process is given, and combined with global positioning system (GPS) data are simulated real orbit. |
| 54790 | 仿真结果进一步证明了所提方法的有效性。 | The simulation results further prove the effectiveness of the proposed method. |
| 54791 | 针对正反馈存在于短帧多元低密度奇偶校验码(low density parity check,LDPC)与高阶连续相位调制(continuous phase modulation,CPM)迭代系统中的问题,提出一种在低信噪比采用加权联合平均外信息交换、在中高信噪比采用加权外信息交换的外信息处理方式。 | For positive feedback in short frame multiple low density parity check code (low density parity check, LDPC) with high order continuous phase modulation (continuous phase modulation, CPM) in the iterative system problems, puts forward a low signal-to-noise ratio using weighted joint average information exchange, outside the high signal-to-noise ratio using the weighted information processing means outside the exchange of information. |
| 54792 | 该方式对解调器与译码器之间传递的外信息进行相应处理,可以有效控制波动过大的位概率。 | The way to the transfer of information between demodulator and decoder for the corresponding processing, can effectively control the volatility of a probability. |
| 54793 | 同时将交叉熵(cross entropy,CE)和辅助硬判决(hard decision aided,HDA)两种迭代停止准则与加权外信息处理方式结合进行动态迭代译码。 | At the same time will cross entropy (cross entropy, CE) and auxiliary hard decisions (hard decision aided, HDA) two iterative stopping criteria and weighting information processing method combined with dynamic iterative decoding. |
| 54794 | 理论分析和仿真结果表明,对外信息交换进行加权操作并联合动态迭代停止算法能够在有效减少正反馈的同时使迭代的收敛性得到优化,同时迭代停止算法可减少平均迭代次数,提高系统的实时性。 | Theory analysis and simulation results show that the external information exchange weighted operation and joint dynamic iterative stopping algorithm can effectively reduce the positive feedback, and make the convergence of the iterative optimization, iterative stopping algorithm can reduce the average number of iterations at the same time, improve the real-time performance of the system. |
| 54795 | 针对雷达系统中机动目标的跟踪问题,提出输入估计(input estimation,IE)与无偏量测转换(unbiased converted measurement,UCM)相融合的自适应算法。 | For the tracking of maneuvering targets in radar system, and an input (input estimation, IE) and unbiased measurement transformation (unbiased converted measurement, UCM) combines the adaptive algorithm. |
| 54796 | 用无偏量测转换技术将观测量转换到直角坐标系,使得在极坐标系内应用IE成为可能;提出检测窗内加速度阶梯变化的假设并推导相关模型,使得单个输入估计器能够跟踪各种变化机动。 | With unbiased measurement transformation technology to convert observation to the rectangular coordinate system, has made it possible in polar coordinates using IE;Acceleration change detection window hypothesis and related models are derived, enables the single input estimator to track various change motor. |