ID 原文 译文
48506 在无线传感器网络(wireless sensor networks,WSN)中采用任播技术可以均衡数据流及能耗。 In the wireless sensor network (wireless sensor networks, WSN) used in information technology can balance data flow and energy consumption.
48507 传统算法常采用节点不相交路由策略,但隐终端问题仍会造成任播路径间的传递碰撞。 Tradition is often node disjoint routing strategy, but hidden terminal problem will cause seeding transmission collision between the path.
48508 针对该问题,提出基于区域不相交策略的WSN任播路由算法。 Aiming at the problem, put forward based on the strategy of regional disjoint WSN as a multicast routing algorithm.
48509 该算法采用扇形通道技术和基于不同时隙的区域不相交发送策略以减少任播路径传递碰撞问题。 This algorithm adopts the technology of the fan-shaped channel and regional disjoint transmission strategy based on different time slot to reduce multicast path transmission collision problem.
48510 仿真实验数据表明,相比较节点不相交路由策略和最短路径优先区域不相交路由策略,本文算法在分组投递成功率和节点平均能耗上具有较好的性能优势,从而提高网络生存期。 Comparing simulation data show that node disjoint routing policy and shortest path first regional disjoint routing strategy, the algorithm on the average packet delivery success rate and node energy consumption has a good performance advantages, thus improve the network lifetime.
48511 针对故障预测中存在数据采样时间间隔不均匀、采样难度大、数据量小等问题,借鉴信息融合技术和灰色预测理论,提出了一种基于信息融合和改进不等时距灰色模型(improved unequal interval grey model,IUGM)的预测方法。 For fault prediction of data sampling and sampling interval uneven, such problems as small amount of data, using information fusion technology and the theory of grey prediction, this paper proposes a range and improve the interval grey model based on information fusion (improved unequal interval grey model, IUGM) prediction method.
48512 首先,运用一元二次非线性回归思想建立不等时距灰色预测模型,并通过初始值改进、残差修正和新陈代谢相结合的方式对模型进行改进; First, applying the idea of a yuan quadratic nonlinear regression when ranging from the grey prediction model is established, and the improvement of the initial value, residual correction and metabolism of combining the way to improve the model;
48513 然后基于加权思想提出隶属度加权法,以确定特定个体和同类产品的隶属度权值;最后基于加权思想和IUGM(1,1)模型建立特定个体的故障预测模型。 Then based on the weighted membership weighting method is put forward, in order to determine specific individuals and the membership degree of the same kind of weight;Based on the weighted thought and IUGM (1, 1) model is established in specific individual fault prediction model.
48514 实例仿真验证了所提方法的有效性。 The instance simulation to verify the effectiveness of the proposed method.
48515 上升段弹道目标相对于雷达不仅具有很高的径向速度,而且转动速度也近似为匀加速转动,使得去斜后的差频信号和多普勒回波均为多分量线性调频(linear frequency modulation,LFM)信号,若仍采用基于离散傅里叶变换的距离-多普勒(range Doppler,RD)方法成像,将造成图像在径向和横向的散焦。 Rising ballistic target not only has the very high radial velocity relative to the radar, and rotation speed is approximate to acceleration in turn, make the difference frequency signal after to oblique and Doppler echo are multiple component of linear frequency modulation (linear frequency modulation, LFM) signal, if still using distance based on discrete Fourier transform, Doppler (range Doppler, RD) method for imaging, will cause the defocused image in the radial and transverse.