If the information about fixed clutter in SAR image can be used to suppress the background clutter, the detection of moving target will be easy.
利用单通道sar图像中静止背景的信息抑制静止杂波，可改善检测动目标的性能。
In the background of globalization, the float exchange rate system will return to the fixed one, in the form of currency unions.
全球化背景下浮动汇率制将以货币联盟的形式向固定汇率制复归。
Background &Objectives:It was difficult to get a good tissued ose distribution using fixed field irradiation technique in large field. But the translating scanning beam irradiation can make it.
背景与目的：用固定野技术行特大野照射时，很难得到理想的组织剂量分布，而平移扫描式照射却能做到。
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