摘要
简述了微波辐射成像系统的工作原理。由于影响微波辐射成像质量的因素很多,本文主要从理论上分析了微波辐射成像系统中辐射计的空间分辨率、灵敏度与系统采样时间间隔、天线扫描速度、积分时间的关系,并进行了相关的实验。实验证明,它们之间是相互制约、相互影响的,在选择参数时要根据不同情况综合考虑,才能得到理想的图像。
The principles of the microwave radiometric imaging system are discussed. For there are many factors which influence microwave radiometric imaging quality, the relationships among the radiometer spatial resolution, the radiometer sensitivity, the sampling interval, the antenna scanning speed and the integration time are analyzed. Then some corresponding experiments are made to examine the influence of two main factors: the integration time and the sampling interval. And the result proves that these factors restrict and effect each other. When the parameters of microwave radiometric imaging system are chosen, different situation must be considered. Thus, perfect image can be obtained.
出处
《红外与激光工程》
EI
CSCD
北大核心
2004年第4期432-436,共5页
Infrared and Laser Engineering
