The result shows that, compared with the existing channel estimation algorithms for OFDM system under time-vary multipath channel, the proposed algorithm can effectively reduce estimation errors.
分析结果表明,与已有的OFDM系统在时变多径信道中的信道估计技术相比,所建议的算法可以有效地减小信道估计的误差。
The study shows that the algorithm can complete frequency offset tracking in AWGN channel and multipath fading channel.
研究表明,该算法既能在AWGN信道中也能在多径衰落信道中完成频偏跟踪工作。
The simulation results indicate under multipath channel for low SNR, the new algorithm has lower probability of failure than the conventional algorithm by adopting proper training symbols.
仿真结果表明,在低信噪比的多径信道下,该算法可通过选择合适的训练符号,使错检概率低于常规算法。
Results of simulation and analysis show that, in comparison with ML algorithm it is of better synchronization performance, and its performance is considerably raised especially in multipath channels.
仿真结果表明,与ML算法相比,该算法大大提高了系统的同步性能,尤其是在多径信道中的性能得到了很大提高。
Based on some rule, the improved GEAR algorithm established multipath from the source node to the target region, at the same time, it can avoid the identical node encountering the same hole again.
改进的GEAR算法从均衡网络流量出发,根据规则建立了从源节点到目标区域的多条路径,并且避免了同一节点重复面临同一路由空洞问题。
The algorithm can reduce the multipath interference for the mobile units.
该算法可减小移动用户的多径干扰。
A new algorithm based on higher order cumulants is proposed for classification of MPSK signals in multipath channel environments.
针对多径信道中MPSK信号的调制分类问题,提出一种新的基于高阶累量的分类算法。
The algorithm of residual frequency estimation is detailed, and simulation results verify the proposal algorithm with good performances in both AWGN and multipath fading channel.
最后着重分析了残留频偏的估计算法,分别在AWGN信道下和多径衰落信道下仿真,结果表明所提算法均有良好的性能。
The leading edge detection algorithm is proposed to mitigate the effect of multipath in TOA estimation.
采用边缘检测技术有效减少了TOA参数估计中的多径干扰,提高了时延参数估计的准确度;
To combine multistream coding with multipath transport(MPT), a rate-distortion optimal algorithm to code a raw video stream into multistream is developed.
为在多路径传输中结合多条流的编码方式,开发了一种基于率歪曲优化的算法,进而把一条未加工的视频流分成多条流。
The phase information of wavelet transform used in the algorithm is invariant with respect to flat fading, and can resist multipath fading of frequency-selecting channel in quite a few degree.
算法所用的小波变换相位信息特征对平坦衰落信道具有衰落不变性,对频率选择性衰落信道也具有很强的抗多径能力。
The feature used in the algorithm is invariant with respect to flat fading, and can resist multipath fading of frequency-selecting channel in quite a few degree.
算法所用特征对平坦衰落信道具有衰落不变性,对频率选择性衰落信道也具有很强的抗多径能力。
The algorithm can distinguish close-spaced multipath components, and to improve multipath attenuation parameters estimation effectively.
这种新方法不但能够分辨时延结构紧密的多径分量,而且能有效改善多径衰减参数的估计。
This paper proposes a cluster director path multipath routing algorithm on the research of other multipath routing algorithm(CDPMR).
在研究了一些分簇算法和多路径路由算法基础上,提出基于簇指挥路径的多路径路由算法(CDPMR)。
In this paper the regular equations of ar and MA models built for multipath channels are derived, and an iterative algorithm of direct signal and multipath clutter cancellation is proposed.
文中推导了采用AR模型和MA模型对多径信道建模的正则方程,提出了采用混合模型消除直达波与杂波的迭代算法。
We not only analyse performance of MUSIC algorithm and 1-d noise subspace algorithm but also investigate the effect of multipath on these two algorithms.
分析了MUSIC算法和一维噪声子空间算法的性能,研究了多径衰落对这两种算法的影响。
A non blind channel estimation algorithm for orthogonal frequency division multiplexing (OFDM) systems in multipath channels was proposed.
提出了一种适用于正交频分复用通信系统的非盲信道估计算法。
Analysis results show that the algorithm is a valid method for height finding in multipath environment.
分析结果证明了该算法是一种多经环境下测高的有效方法。
A channel estimation algorithm is proposed for OFDM wireless communication system under time-varying multipath channel.
提出了一种OFDM系统在时变多径信道中的信道估计算法。
The algorithm is a development of traditional MUSIC algorithm, so the number of multipath signals can be most of the array elements and can be used to estimate the parameters of multipath signals.
该算法是对传统MUSIC方法的推广与变形,克服了要求接收信号数小于阵元数的局限,能有效估计时延不同、波达方向相差很小的多径信号的参数。
This paper presents a blind algorithm to estimate the signal-to-noise ratio(SNR) of a communication signal in multipath Rayleigh fading channel .
提出了一种在多径瑞利衰落信道中的信噪比盲估计算法。
With this model, the blind multiuser detection and iterative algorithm of MC-CDMA systems based on subspace projection are studied in the multipath fading channel.
由于其在对抗多径衰落方面具有显著的效果,它适合于在无线移动通信信道下使用,因而得到广泛的研究。
The weigh evaluation function is used to solve this model, and then a Multipath Flow Allocating Routing (MFAR) algorithm is proposed based on it.
利用权衡评价函数实现了模型的求解,进而提出一种多径流量分配路由(MFAR)算法。
In the algorithm, the propagation delays and the angles of multipath are firstly estimated by a modified TST-MUSIC algorithm.
该方法首先通过修正后的TST - MUSIC算法估计多径的传播时延和角度。
Then, based on the multipath model, this thesis analysed and researched the time delay algorithm based on the weigthed fractional lower order covariance and the weigthed non-linear transformation.
其次,在多径时延的模型基础上,本文分析研究了加权分数低阶协方差时延估计方法和基于加权非线性变换的时延估计方法。
Then, based on the multipath model, this thesis analysed and researched the time delay algorithm based on the weigthed fractional lower order covariance and the weigthed non-linear transformation.
其次,在多径时延的模型基础上,本文分析研究了加权分数低阶协方差时延估计方法和基于加权非线性变换的时延估计方法。
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