In the multi path communication scenario, it is needed to estimate the two dimensional angles and relative time delays of each multi path ray.
在多径传输的情况下,经常需要估计各路径的二维波达方向角度及相对时延。
A typical model to simulate the multi path effects up to three different propagation paths was introduced, more paths 'simulation can be implemented by increasing the number of same units.
介绍了一个模拟最多三个不同传播路径的典型多径效应模型,通过增加相同的单元数目可以实现更多路径的模拟。
If you use the device mapper multi-path (DMMP) tool for your multi-path storage, then you can use a friendly name for your root file system to avoid the device being renumbered by DMMP after reboot.
如果将设备映射程序多路径(DMMP)工具用于多路径存储,则可以将友好的名称用于根文件系统以避免设备在重新启动后被dmmp重新编号。
Multi path time delays are estimated precisely with this approach, and disturbances and noises can be refrained effectively.
该方法能准确地进行多径传输情况下的时间延时估计,有效地抑制干扰和噪声的影响。
The shadow affect is logarithmic normal distribution, and the multi-path fading is Rayleigh distribution.
阴影效应服从对数正态分布,而多径衰落服从瑞利分布。
Secondly, power line noise channel and multi-path channel optimization modeling techniques based on artificial neural network are proposed.
其次,提出了电力线噪声信道和多径信道的神经网络优化建模方法。
Simulation shows co-channel interference and maximum multi-path delay spread have significant impact on the BER performance and PDMRC gives the best performance in most common environment.
仿真表明同信道干扰与最大多径延迟扩展对系统性能影响很大,在通常情况下采用PDMRC具有最好的性能。
The results show that the developed antenna choke ring can effectively reduce the multi-path effects and can improve the interference-resistant ability of the single frequency GPS receiver, NTSCGPS-1.
结果表明,研制的天线扼流圈可有效地削弱多路径效应的影响,并可明显地改善单频GPS接收机ntscgps - 1的抗干扰能力。
This paper presents the electrocircuit design of a multi-path ultrasonic gas flowmeter.
介绍了一种多声道超声气体流量计的电路设计。
Spreading code design and joint detection are two efficient ways to increase CDMA system capacity in multi-path fading channels.
在多径衰落信道CDMA系统中,扩频码设计与联合检测为提高系统容量的两个重要手段。
The first chapter introduced the characteristics of the wireless channel, the small-scale fading model, multi-path fading model and WSSUS channel model.
本文第一章绪论首先分析了无线信道的特性,介绍了小尺度衰落模型,多径衰落模型以及WSSUS信道模型。
Towing ship noise is a kind of wideband interference with strong multi-path and Angle dispersion for a towed line array sonar system.
由于拖船噪声是一种具有多途角扩展的宽带相干强干扰,拖船噪声抑制是拖线阵声呐系统中的关键技术之一。
Some problems about the distance ambiguity and multi-path interference are also analysed.
对距离模糊、多途干扰等问题亦作了分析。
This article presents the theory of SIAR, and gives a multi-path height measurement method which is based on high range resolution to overcome the defect in height measurement.
文中介绍了这种雷达试验系统的主要原理,针对该雷达在测高方面的不足给出了一种基于距离高分辨的多路径测高方法。
This paper presents a RAKE-based STBC scheme used in multi-path fading environment.
文章在多径信道下,提出了一种基于RAKE接收机的空时分组编码(STBC)方案。
OFDM has the ability of transforming the frequency-selective channel into a collection of parallel flat-fading subchannels and therefore can be adopted in MIMO systems to combat multi-path effects.
OFDM技术可以把频率选择性衰落的信道转化成一组正交的平坦衰落的信道,因此可将OF DM技术应用在MIMO系统中来克服多径衰落的影响。
For the problem of multi-path effects, firstly the low-angle target tracking model of sea-surface is built up, and the geometric relationship among target, image and radar is analyzed.
针对多径效应的问题,首先建立海面低空目标的跟踪模型,分析了目标、镜像和雷达之间几何关系。
In broadband wireless communication, ISI caused by multi-path affect the performance of the communication system seriously.
在宽带无线通信中,多径引起的符号间干扰严重影响了通信系统的性能。
In this paper, we analyze the BER performance of pilot symbol assisted two-dimensional spread spectrum systems with coherent demodulation in multi-path fading channels.
在多径衰落信道中,本文分析了导引辅助的二维扩频相干解调的误码率性能。
Ant Colony Optimization methods of self-organization, dynamic and multi-path make it particularly suited to the characteristics of wireless sensor networks for routing.
蚁群优化方法的自组织、动态和多路径的特性使其特别适合应用于无线传感器网络的路由。
The satellite which suffered from multi-path effect can be determined by judging the reasonable range of pseudo-range and pseudo-range rate.
通过对伪距、伪距率范围的确定,可以判定受到多路径效应影响的卫星。
OFDM is a high transmission technology in the wireless propagation environment. It is fitted to transmit high-speed data in the wireless channel which has multi-path delay and Doppler frequency shift.
OFDM是一种无线传播环境下的高速传输技术,适合在多径传播和多普勒频移的无线信道中传输高速数据。
Based on this, this paper focused on the UWB path loss model and the multi-path fading model in mine environment.
在此基础上着重研究了矿井环境下的UWB路径损耗模型和多径衰落模型。
The structure and working principles of multi-path signal receiver are depicted.
文中给出了多径信号接收机的结构及工作原理。
On the basis of conventional cross correlation, the detector can complete packet detection and fine symbol timing at the same time by accumulating multi-path energy.
在改进传统互相关算法的基础上,通过累积多径能量,该分组检测器可以同时实现分组检测和符号精定时。
In wireless communication, there is a serious multi-path phenomenon, can cause severe ISI.
在无线通信中,存在着严重的多径现象,能够引起严重的ISI。
The transfer function of the power line networks is figured out using the multi-path model, the transmission matrix model and the multi conductor theory.
应用多径传输模型,传输矩阵模型以及多导体传输线理论导出了室内电力线网络和室外配电网络的传递函数。
To solve the common-link and common-node problem, disjoint multi-path routing (DMPR) is employed where sensors send data to the sink through link-disjoint or node-disjoint path.
提出了一种不相交路径路由算法,可以将感知节点采集到的数据通过不相交路径传送到汇聚节点,提高路由的可靠性。
This model could adapt to asynchronously synergetic load forecasting involving several departments and enable the integrating of information from multi-department, multi-path and multi-scheme.
该模型能够适应多部门异步协同预测的工作方式,实现多部门、多路径、多方案的信息综合。
Based on the principle of the OFDM technology, the multi-carriers modulation has strong abilities in counteracting the multi-path response.
根据OFDM技术的原理,多载波调制技术具有良好的抗多径效应能力。
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