doAs的例句大全

The ability of long-distance searching goals of an acoustic homing torpedo can be improved greatly by using towed linear array, and the power of DOAs tracking of the torpedo is the key factor that influences the result in a war.

使用拖曳线列阵可以有效提高自导鱼雷远程搜索目标的能力，而能否精确跟踪目标方位将直接影响到鱼雷的实战效果。

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The proposed algorithm constructs a new Toeplitz matrix by rearranging the elements in the spatial difference matrix, and then use it to estimate the DOAs of coherent signals.

所提算法通过将空间差分矩阵中的元素重新排列而构造了一个新的Toeplitz矩阵来估计相干信号的DOA。

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By using spatial differencing technique, the effect of correlated noise with Toeplitz-structure covariance matrix is removed. Afterwards, the two methods make use of different ways to estimate the DOAs of wideband coherent signals.

首先利用空间差分技术去除具有Toeplitz型协方差矩阵的相关噪声的影响，之后两种算法采用不同的方法来估计宽带相干信号的DOA。

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The proposed algorithm uses a new method of modified TLS-ESPRIT to estimate the DOAs of uncorrelated signals, and then construct a new Toeplitz matrix by rearranging the elements in spatial difference matrix.

所提算法利用一种改进的TLS-ESPRIT算法估计不相关信号的DOA，然后通过对空间差分矩阵中的元素进行重新排列构造新的Toeplitz矩阵。

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it exploits the poverty of the coupling matrix to a uniform linear array ( ula), subtracts two subarrays with the same structures and coupling characteristic, estimates the doas using esprit and then obtains the coupling parameters in the least-square ( ls) sense.

利用了均匀线阵互耦矩阵的特点，在阵列中找出互耦结构相同的两个子阵，利用ESPRIT方法得到角度估计，再从最小方差（LS-Least square）拟合出发获得互耦参数的估计。

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firstly, the wideband signals are focused on the instantaneous frequency respectively with symmetric antenna and bi-linear transformation. secondly, the correlation matrices are constructed on the signals' instantaneous frequency. with music spatial spectrum, the doas will be obtained at last.

该算法利用对称阵子和双线性变换可将多个宽带信号聚焦至各自的瞬时频率，再通过傅立叶变换，在信号各自的瞬时频率上构造相关矩阵，由此构造MUSIC空间谱可获得信号的DOA。

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monitoring and analysis of air pollutants using doas in winter of beijing

北京冬季大气污染物的DOAS监测与分析

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the differential optical absorption spectrometry ( doas) for atmospheric pollutant monitoring is simulated in laboratory.

在实验室内模拟测量了实际大气中污染气体的差分吸收光谱（DOAS）。

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I should appreciate the life by myself, and then think whatI hear doas I want.

生活需要去冷静的观察, 然后沉淀所思所闻,去走自己的路.

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In the algorithm the direction matrix is reconstructed and DOAs are estimated by Vandermonde characteristics of the direction matrix and the least square principle.

该算法利用方向矩阵的Vandermonde特征、基于最小二乘法对方向矩阵进行重构和DOA估计。

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Doas most men do and men will speak well of thee.

照大多数人那样干,人们会把你称赞.

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