【摘要】 为了提高微波辐射计系统的精度,对微波辐射计接收机反射系数因定标噪声源影响产生的变化进行了研究,并给出了相关的误差公式和系统噪声公式.通过对31.65 GHz微波辐射计进行定标噪声源逆向辐射测量实验分析表明,定标噪声源逆向辐射引起的反射系数变化,会使失配因子改变且使系统噪声增加.更多还原

【Abstract】 For influenced by calibration source,the reflection coefficient of microwave radiometer receiver is studied to improve the accuracy of the microwave radiometer.The error calculation formula and system noise formula are also provided.Utilizing 31.65 GHz microwave radiometer to certify the inverse radiation of calibration source,it is shown that the reflection coefficient is influenced by inverse radiation.Therefore,the miss-match factor and the system noise increasing are influenced by reflection coefficient.更多还原