Considering radar as a point in variational target body coordinate, we can study the azimuth and elevation of line of sight of radar in target body coordinate.

将雷达转换为姿态角不断变化的目标体坐标系下一点，研究雷达视线在目标体坐标系下的方位和高低角。

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Furthermore, meteor trails scattering can affect the performance of a beyond-light-of-sight radar system.

最后研究了流星余迹散射对超视距雷达性能的影响。

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High resolution range profile(HRRP) is the projection vector sum of target scattering point echoes acquired by wide-band radar along the direction of radar line-of-sight(LOS).

高分辨 距离像（HRRP）是宽带雷达获取的 目标散射点子回波沿雷达视线方向的投影矢量和。

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Not least because these huge exchanges of information and ideas are all taking place below the radar - out of sight of the traditional media.

BBC: If your face fits