相位扰动 meaning in Chinese
phase perturbation
Examples
- Simulation of phase disturbance in coil
氧碘化学激光器中相位扰动的模拟研究 - The most important feature of phase - only nulling method lies in only making use of phase perturbations for controlling pattern ' s nulls , namely , amplitude of weights is fixed
唯相位( phase - only )方向图置零方法是一种只利用阵列单元的相位扰动对方向图的零点进行控制的波束形成方法。 - Phase - only . nulling method is not only applied to reception pattern but also radiation pattern . however , this method only uses information of weights so that equations for defining phase perturbations are generally unlinear
由于这种方法只利用了权系数的相位信息，确定相位扰动(或权系数)的方程组一般都是非线性方程组，求解比较困难。 - The design process of the multi - beamforming is presented detailedly , which include the orthogonal demodulation and resample technology , the schema of phase shift beamforming , and the effect of the frequency shift and the phase disturbance . the secondary filter is designed to eliminate the influence of the close frequency
讨论了频偏和相位扰动对波束的影响；双频或三频同时工作时，为消除相邻频率间的干扰，设计了二次滤波的特殊处理方法，仿真表明设计满足要求。 - Dbf algorithms for 2d planar array based on the algorithms for 1d array are discussed in this paper . the author ' s main contributions include research of the adaptive digital beamforming algorithm , which control both amplitude and phase of each array element : diagonal loading qrd - smi algorithm . research of two phase - only dbf algorithms : small phase perturbation restriction algorithm and maximum gain of the expected direction restriction algorithm
面阵的数字波束形成算法是面阵dbf技术的关键，本文在现有的一维数字波束形成算法基础上，研究了二维面阵的数字波束形成算法，主要工作有：面阵的幅度相位全控制自适应数字波束形成算法? ?对角加载qrd - smi算法的研究；两种面阵唯相位( phase - only )数字波束形成算法? ?小相位扰动约束算法和期望方向增益最大约束算法的研究；面阵的数字多波束形成算法? ?二维fft多波束的研究，以及fft在可编程逻辑器件中的实现。