To apply a spacial remote sensor, the remote imaging analysis is the key problem.

空间遥感成像的分析对于遥感器的运用至关重要。

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Therefore, point target detection of remote imaging is hot and difficult in infrared image detection and processing in recent years.

因此，远距离成像的点目标检测问题是近年来小目标红外图像检测与处理研究的热点和难点。

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Estimation of signals from noisy observations is an important topic with applications in areas such as communication, medical imaging, remote imaging, and astronomy.

从带噪信号中估计源信号在很多应用领域都是重要课题，例如通信、医学成像、远程图像以及天文学等等。

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Beidou isn't believed to be as accurate as the U.S. GPS. Nonetheless, it could be used in conjunction with Yaogan remote-sensing satellites and older imaging satellites to support tactical military operations, according to a paper by Eric Hagt and Matthew Durnin published in the Journal of Strategic Studies in October.

WSJ: Beijing Launches GPS Rival