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针对当前机载遥测系统中频带资源受限及试飞需求增加的双重影响下,本文首先描述了S频段的应用现状,然后对C波段从空间损耗、多径损耗等多个影响因素进行理论分析并对其应用进行可行性研究。一、引言目前机载遥测系统中采用S波段作为使用频段,其频率区间为2200MHz~2390 MHz并一直延续至今。近年来,随着试飞监控中PCM数据流的显著增加,以及对机载高清视频画面的监控需求,使得S波段内遥测传输速率急剧上升且
Under the dual influence of the limitation of band resource and the increase of test flight demand in the current airborne telemetry system, this paper first describes the application status of S-band, and then analyzes the C-band from many factors such as space loss, multipath loss and so on Feasibility study on its application. I. INTRODUCTION At present, the S-band is used as the frequency band for use in airborne telemetry systems. Its frequency range is 2200MHz-2390MHz and has been extended to this day. In recent years, with the significant increase of PCM data flow in flight monitoring and monitoring of airborne HD video images, the telemetry transmission rate in S band has rapidly risen