minimum mean square error造句
例句与造句
- Minimum mean squared error
最小均方差 - This system characterized with good anti - multipath performance and low complexities when the channel matrix extending technique or overlap - adding technique and minimum mean square error equalization are employed
当采用信道矩阵扩展技术或重叠相加技术，并采用最小均方误差均衡时，该系统有着良好的抗多径性能和较低的计算复杂度。 - In this paper , we emphasis on the distributed mimo zero forcing detection , maximum likelihood detection and minimum mean square error detection . the simulation results are presented to compare the proposed distributed mimo detection algorithms
本文重点阐述了分布mimo的迫零检测算法、最大似然检测算法和最小均方误差检测算法,并通过仿真比较了这三种分布mimo检测算法的性能。 - The variance of the optimum estimate is not only smaller than that of sensor with the minimum variance in this multi - sensor system but also smaller than that of estimating result with minimum mean square error ( mmse ) algorithm
由该算法得到的传感器测量结果值最优估计的方差不仅低于传感器组中每一个传感器测量结果的方差，而且低于由基于最小均方误差( mmse )多传感器数据融合算法得到的估计结果的方差。 - 4 . we propose that the best detection method for the uplink mc - cdma system is decorrelating - parallel interference cancellation ( dec - pic ) multiuser detection , and the best detection method for the downlink mc - cdma system is minimum mean square error combining ( mmsec ) single user detection
提出上行信道mc - cdma的最佳检测方法是解相关-并行干扰抵消多用户检测法( dec - pic ) ，在下行信道mc - cdma的最佳检测方法是最小均方误差合并单用户检测法( mmsec ) 。 - It's difficult to find minimum mean square error in a sentence. 用minimum mean square error造句挺难的
- Then we focus on decision feedback equalization ( dfe ) algorithm which is widely used in mimo signal detection . subsequently , a minimum mean squared error ( mmse ) detector based on wl detection combined with the decision feedback strategy for ca - mimo is derived . meanwhile , the issue that how to use wl detection in da - mimo system is discussed and a solved project is also presented
本文第四章在介绍了宽线性检测技术的基础知识之后,着重针对mimo信号检测算法中使用广泛的反馈判决检测算法,提出了一种基于最小均方误差准则的宽线性反馈判决集中式mimo信号检测算法;同时,结合第三章的内容,对分布mimo信号如何采用宽线性检测提出了一套解决方案,通过计算机仿真,给出了几种分布mimo检测算法的性能;结果表明,在采用最优检测顺序的情况下,两 - Secondly , introduce discrete multi - tone modulation principle in detail , have a systemic and comprehensive analysis and explanation on minimum mean square error ( mmse ) channel shorten time domain equalizer design methods which are based on all kinds of cost functions , analyze their advantage and disadvantage . research on time domain equalizer structure , compare all the time domain equalization algorithm with simulation which afford a valuable reference for the choice of equalization algorithm and equalizer structure when design time domain equalizer
详细介绍离散多音频调制原理，对mmse信道缩短法和基于其他代价函数的时域均衡器设计方法的进行了系统全面的分析和阐述，分析了各自的优缺点；对时域均衡器结构进行研究；仿真比较了各种时域均衡方法，为进行时域均衡器设计时均衡算法、均衡器结构的选择提供了有价值的参考。 - After the system has been synchronized , we first use the least square method to make channel estimation , then separate the channel response information from the channel noises by dft . a weighting function based on the minimum mean square error ( mmse ) criteria can be applied to the time domain channel impulse response
在系统同步条件下，首先使用最小平方方法来估计信道响应，然后利用离散傅利叶变换的性质把信道响应信息和信道噪声分离，并在时域按最小均方误差准则做加权处理。 - The latter primarily improves the transmission distance and reliability by selecting the repeater automatically . the frequency domain auto - adaptatation filter algorithm is deduced and reliabity by selecting the repeater automatically . the frequency domain auto - adaptaion filter algorithm is deduced and a method of frequency domain algorithm to restrain the marrow band interference is given on the foundation of the time domain minimum mean square error auto - adaptation filter . then the meter reading system to can learn the power network structure and automatically create linked path by using neural networks auto - study ability and analyzing the reading data
后者主要是对中继节点的自动选择，以提高信息的传输距离与可靠性。针对电力线扩频通信信道的特点，在时域最小均方误差自适应滤波算法的基础上，推导了频域自适应滤波算法，并提出了频域算法抑制窄带干扰的具体方法。运用神经网络的自学习方法，通过对抄读数据进行分析，使抄表系统感知电网拓扑结构，自动建立中继路径。 - The present paper gives some profound results of linear biased estimation of regression coefficients which include linear biased estimation for the minimum mean square error , the necessary and sufficient conditions for the linear biased estimation superior to least square estimation , the necessary and suffic ) ent conditions for the admissibility of linear biased estimation and some linear biased estimators not included in the literatures
摘要给出回归系数的最小均方误差线性有偏估计、线性有偏估计优于最小二乘估计的充要条件及线性有偏估计为可容许估计的充要条件，同时给出文献中未涉及的一些有偏估计。 - Generally speaking , the segmentation method itself could n ' t judge whether there are overlapping bubbles or not in the images ; also could n ' t split them . a concavity detection method of the overlapping bubbles , based on the projection of the object contour is proposed here ; then departing point pair is obtained by matching the concavities ; finally , the splitting curve is obtained by the departing point pair constrained based minimum mean square error ( mmse ) ellipse fitting
一般说来，图像分割无法判断所获得的气泡区域是否存在粘连并对其进行分西安理工大学硕士学位论文离，所以本文采用对日标物的轮廓进行投影检测来寻找气泡粘连处的凹点，并对凹点进行配对以获得粘连气泡的分离点对。 - The main works of the dissertation can be summarized as follows : 1 . by exploring the model of ds - cdma systems , the performances of the decorrelating multi - user detector and minimum mean square error ( mmse ) multi - user detector are studied . further , the performances of blind adaptive mud and adaptive mmse mud ( lms style ) with fixed step size and varied step size respectively are studied based on mmse linear detect algorithms
本文主要研究次最优的线性多用户检测技术，工作具体如下：从ds - cdma系统模型出发，研究了解相关多用户检测器和mmse多用户检测器的性能，并以mmse线性检测技术为基础，研究了变步长和固定步长的lms - mmse自适应多用户检测器和基于最小输出能量准则的盲自适应多用户检测器。 - The main contributions of this thesis are as follows : ( 1 ) the conventional minimum output energy ( moe ) algorithm has the global convergence but its stable excess mean square error is high and it ca n ' t converge to the minimum mean square error ( mmse ) . in this thesis an equivalent decision feedback moe ( df - moe ) algorithm variable step - size is presented and analyzed
主要工作可以概括如下： ( 1 )针对最小输出能量检测器( moe )具有全局收敛，但是稳态剩余均方误差比较大，无法收敛到最佳mmse检测器的特点，提出并分析了一种等效的判决反馈变步长moe检测算法(简称df - moe ： decidedfeedbackmoe ) 。 - Some related res ults have been acquired after comparing these cdf with the theoretical capacity . in the fourth chapter , it was at first estimated all the channel coefficients by maximum likelihood estimation and minimum mean square error estimation method on the basis of the construction of the transmission frame and the mathematical model for the wireless mtmo system of channel estimation with training sequence
第四章首先基于训练序列估计的无线mimo传输帧结构和数学模型，分别使用最小均方误差估计法和最大似然估计法估计出了信道的各个系数，在小信噪比和大信噪比时，比较了两种估计方法的估计误差的方差。 - Secondly , it was . made theoretical analyses about the optimal training sequence design by the maximum likelihood estimation method and obtained the corresponding results , which were compared with the separate results derived by the minimum mean square error ( mmse ) estimation method in the other literature . at last , it was analyzed the impac
其次进行了采用最大似然( ml )估计法的最佳训练序列设计的理论分析，分别得到了有关结果，并和其他文献中采用最小均方误差( mmse )估计法的设计结果进行了分析比较，得到了有关结论。