ID 原文 译文
49567 当多径信道各径多普勒因子不一致时，传统的多普勒补偿技术会带来较大的残余误差。 When the multipath channel diameter doppler factor is inconsistent, the traditional doppler compensation technology will bring larger residual error.
49568 针对此问题，通过理论推导提出了一种针对水声多径信道存在非一致多普勒扩展的补偿方法。 Aiming at this problem, through the theoretical derivation this paper proposes a for underwater acoustic multipath channel exists non-uniform doppler extension compensation method.
49569 该方法采用多次内插与快速傅里叶变换相结合的算法， The method USES multiple interpolation combined with fast Fourier transform algorithm,
49570 首先通过对接收信号进行单次重采样预处理以降低多普勒因子大小， first through the study of the single weight of received signal sampling pretreatment in order to reduce the size of doppler factors,
49571 再利用等效信道参数估计模型， using the equivalent channel parameters estimation model,
49572 获得信道统计量后进行正交频分复用解调，实现非一致多普勒补偿。 after gaining channel statistics for orthogonal frequency division multiplexing demodulation, realize the non-uniform doppler compensation.
49573 仿真结果表明，所提方法在信道信息已知与未知的条件下，都具有较高的补偿性能， The simulation results show that the proposed method under the condition of the channel information is known and unknown, have higher compensation performance,
49574 特别是在非一致多普勒扩展比较严重的情况下，其优势更加明显。 especially in the non-uniform doppler extension serious cases, the advantage is more obvious.
49575 针对飞机飞行中单侧机翼突然损伤问题，结合对损伤飞机的特性分析，提出基于神经网络自适应补偿的鲁棒非线性模型逆控制方法。 Aiming at single wing in flight sudden injury problems, combining with the analysis of damage characteristics of the aircraft, based on the robust nonlinear model of neural network adaptive compensation inverse control method.
49576 利用未损伤飞机模型伪控制量中的单隐层神经网络自适应项和鲁棒项，并联合e-modification自适应律对模型误差、外界扰动、神经网络近似误差进行补偿。 Use did not damage the aircraft model pseudo control quantity of single hidden layer neural network adaptive and robust, and an adaptive law is joint e - modification of model error and external disturbance, neural network approximation error to compensate.