With only one radar, this measure is not very informative, but the researchers' method USES four, pointing in different directions through the same air-mass.
仅使用一个雷达，所得的信息并不准确；而研究人员们同时使用四个雷达，分别从不同的方向对同一个气团进行测量。
It's the radar, 'she explains, pointing ahead of us, not very reassuringly.
这是雷达，'她解释说，指着我们面前的，不是很放心。
Then, a variance analysis method was used to analyze the seeker pointing angle error caused by airborne radar measurement noises, initial sensor errors and initial misalignment.
其次，分别建立了雷达测量误差、初始对准误差和惯性元器件误差与导弹位置、姿态测量误差和目标位置测量误差的关系，并得到了其误差影响的方差表达式；
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