遥测数据误码直接影响飞行试验数据结果的分析和评估, 建立合适的误码率模型对遥测数据处理的质量起着关键作用。本文在Rice衰落模型以及信号强度测距模型基础上对飞行试验多站数据进行分析, 估计出接收端误码分布情况, 得到了误码分布模型。从统计结果看出, 遥测数据帧内误码分布为独立同分布, 与位置无关, 而帧间误码随飞行器与接收天线之间的距离减小而减少。多站数据误码分布的讨论为多站数据融合提供理论支持。

The work function (WF) of indium-tin-oxide (ITO) substrates plays an important role on the inverted organic photovoltaic device performance. And electrode engineering has been a useful method to facilitate carrier extraction or charge collection to enhance organic photovoltaic (OPV) performance. By using self-assembly technique, we have deposited poly(dimethyl diallylammonium chloride) (PDDA) layers onto ITO coated glass substrates. The results indicate that the surface WF of ITO is reduced by about 0.3 eV after PDDA modification, which is attributed to the modulation in electron affinity. In addition, the surface roughness of ITO substrate became smaller after PDDA modification. These modified ITO substrates can be applied to fabricate inverted OPVs, in which ITO works as the cathode to collect electrons. As a result, the photovoltaic performance of inverted OPV is substantially improved, mainly reflecting on the increase of short circuit current density.