source-generated noise

The problem of DOA's estimation of multiple source signals incident on a arbitrary array in the presence of both unknown spatially correlated noise and sensor errors is firstly considered.

在空间相关色噪声环境及存在阵列模型误差情况下，首先给出了基于最大似然的DOA及阵列幅相误差联合估计算法，该算法对信号和噪声无任何约束，且适用于任意阵列结构。

In this paper, the source of noise in automobile power steering pump ( APSP) is revealed on the basis of the analysis to the frequency spectrum of APSP.

根据汽车动力转向泵的频谱分析，揭示了汽车动力转向泵的噪声主要来源。

First, the thesis starts off PD mechanism, and analyses the noise and its source.

从局部放电原理出发，以噪声分析为基础，设计出一套灵敏度高、噪声抑制比强的直流局部放电测试系统；

Then we analyzed the main source of noise in LIGO.

分析LIGO中的主要噪声源。

Enhancing the number-noise squeezing of output light of a LED driven by high-impedance constant-current source using negative feedback

负反馈提高高阻恒流源驱动的LED的输出光场噪声压缩量