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- Results Furthermore, a modified ULV updating algorithm is applied to performing noise subspace tracking. 结果使用一种修改的ULV更新算法进行噪声子空间跟踪。
- A criteria for detection is derived based theasymptotical analysis of the orthogonality between signal and noise subspace. 对信号子空间和噪声子空间的正交性进行了分析得出新的估计准则。
- After acquired the number of signal sources,by choosing the signal subspace or noise subspace the spatial spectrum is computed. 在判定出信号源个数后,有选择地使用信号子空间或噪声子空间去计算空间谱,进一步减少计算量。
- The algorithm projects the LCMVB weight vector onto the signal subspace,thus the effect of the noise subspace on the weight vector is reduced. 该算法把常规自适应天线相消法的权矢量向信号子空间投影,减小了噪声子空间对权矢量的影响。
- After sunspace decomposition, the close form solution of channel matrix could be obtained, according to the orthogonality of signal subspace and noise subspace. 然后求出重构信道矩阵的噪声子空间,之后利用信号子空间与噪声子空间正交特性,构造出信道矩阵作为变量的线性方程组,因而可以得到信道矩阵的闭式解。
- The resolution of subspace-based DOA estimation methods can be improved by using the conventional beam-forming to construct noise subspace projection (CNSP). 摘要利用常规波束形成构造噪声子空间投影(CNSP)可以提高子空间类DOA估计算法的分辨率。
- Conventional subspace based algorithms for DOA evaluation estimate the DOA parameters by tracking either the signal subspace or noise subspace of the covariance matrix of the received signal. DOA估计的子空间方法主要是通过估计信号协方差矩阵的信号子空间或者噪声子空间来求出信号的DOA参数。
- A modified ULV updating algorithm is applied to performing noise subspace tracking.The algorithm does not require rank estimation of the correlation matrix, and estimate directly the noise subspace. 使用一种修改的ULV更新算法进行噪声子空间跟踪,该算法不需要相关矩阵的秩估计,直接估计噪声子空间。
- The total least squares process weakens the influence of the noise so the estimated noise subspace is close to the true noise subspace and the algorithm puts nulls in the interferences directions. 利用总体最小二乘方法得到噪声子空间,总体最小二乘处理减轻了噪声的影响,因而估计的噪声子空间接近真实噪声子空间,干扰方向形成零点。
- Through estimating the signal and noise subspaces with the eigen-decomposition of the correlation matrix, the MUSIC algorithm is used to estimate the DOAs of LFM sources. 通过对相关矩阵进行特征值分解,估计信号子空间和噪声子空间,并利用MUSIC算法估计宽带LFM信号的波达方向。
- At last, the orthogonal property of signal with noise subspaces and the approximating of the binomial are utilized to estimate the types of the scattering centers. 同时,利用特征分析法的信号与噪声子空间正交特性、二项式近似两种方法来提取散射中心的类型参数。
- A loud noise from the street diverted my attention. 街上一阵喧闹声转移了我的注意力。
- The noise awoke her from her revery. 这声音把我她从沉思中惊醒。
- That noise is driving me frantic. 那种噪音真要把我弄疯了。
- The thick walls deadened the noise from the street. 这道厚墙隔绝了街上的噪音。
- A noise abatement notice is served on the club. 向俱乐部发停止大声喧哗的通知。
- The noise of traffic grows louder and louder. 交通的噪音变得愈来愈大。
- The noise struck terror into their hearts. 那声音使他们心里产生恐惧。
- He turned around as he heard a noise behind him. 他听到身后有响声,便转过身来。
- The boy jumped up in surprise at the sudden noise. 突如其来的响声吓得这个男孩跳了起来。