DOA (direction of arrival) estimation is realized by using antenna array to estimate the arrival direction of space signal source.

波达方向估计是利用天线阵元对空间信源的来波方向进行估计。

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The system can realize the space signal processing and real time signal processing. It has been successfully applied in underwater weak signal detection.

该系统能够实时实现信号的空间处理和时间处理等，并在水下弱信号检测中得到应用，取得了良好的结果。

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The FFT algorithm is used in space signal processing and the rapid DoA estimation algorithms are studied, then a rapid MUSIC algorithm based on space partition is proposed.

针对前向竞争网和空间分割竞争网在识别分类和学习中存在的局限性，提出用软边界处理改进空间分割竞争网的训练方法。

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Today,VOA broadcasts to satellites in space that send the signal back to stations on the ground that transmit programs with a clear signal.

VOA: special.2010.12.08

"This approach is a signal to the private space community that they can look to government partnerships, government as a user, or even government as an investment partner as they go forward."

VOA: special.2010.04.28

So when we detect gamma-rays from space, we know they signal intensely hot, extreme events.

CNN: Why gamma-ray burst shocked scientists

Over 10, 000 tweets were collated, as well as videos from comedians, which will be beamed into space using a transmitter with a signal 20 times stronger than that of typical commercial radio transmitters.

ENGADGET: Alt-week 8.18.12: Graphene sponges, zero-g athletics and tweets in space

The disks transmit a signal to a server that either the space is empty or a driver has paid to park there.

WSJ: City Unveils Parking App Pilot Program