beamforming

beamforming
波束形成
One use of sensor arrays is to isolate signal components that are traveling from, or propagating to, a particular direction. They find use in a number of different applications. For example, sonar systems make use of sensor arrays to process underwater acoustic signals to determine the location of a noise source; arrays are also used in radar systems to produce precisely shaped radar beams. Array processing techniques for isolating received signals are known as beamforming, and when the same or analogous principles are applied to focus the transmission of signals, the techniques are referred to as beamsteering. Considering the process of beamforming in particular, it is typically necessary to use a fairly large number of signal processing components to form the desired directional beams. The signal from each sensor is typically divided into representative components by subjecting each signal to multiple phase shift, or time delay, operations which cancel the equivalent time delay associated with the respective relative position of the sensor in the array. To form the directional beam the time shifted signals from each sensor are then added together.
所谓波束形成是指将一定几何形状 (直线、圆柱、弧形等) 排列的多元基阵各阵元输出经过处理 (例如加权、时延、求和等) 形成空间指向性的方法 (田坦等，2000)。波束形成也是将一个多元阵经适当处理使其对某些空间方向的声波具有所需响应的方法。波束形成的方法有很多，特别是在实际应用中，随着微电子技术、计算技术的快速发展，数字信号处理技术使时域、频域下的波束形成方法相互贯穿。

- 英语>简体中文, 专利术语

beamforming
波束成型

- 英语>繁体中文(台湾), 电机工程名词

beamforming
波束成形

- 英语>繁体中文(台湾), 电子工程名词

beamforming
波束成形

- 英语>繁体中文(台湾), 电子计算机名词

beamforming
波束形成

- 英语>繁体中文(台湾), 海洋科学名词