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本文论述了风云三号卫星B星微波湿度计(MWHS-3B)发射前热真空定标的原理和方法,建立了各种定标误差的修正算法,获得了MWHS-3B的系统线性度、观测不同目标的灵敏度和最终定标精度等关键技术指标。这些参数已经用于MWHS-3B在轨数据的处理。
This paper discusses the principle and method of thermal vacuum calibration before the launch of Fengyun III B-satellite microwave hygrometer (MWHS-3B), builds a variety of calibration error correction algorithms and obtains the systematic linearity of MWHS-3B. The observed Different target sensitivity and final calibration accuracy and other key technical indicators. These parameters have been used for MWHS-3B in-orbit data processing.