遥测落区近地信号的接收方法及验证

Receiving Method and Verification of Near Ground Signal in Telemetry Falling Area

弹(箭)飞行靠近地面时,遥测信号受地面影响,难以有效接收。针对对地攻击弹药及钻地弹药靶场遥测试验过程中对近地信号的遥测需求,有必要研究近地遥测信道衰落模型。本文在分析信道特性影响的基础上,结合外场距离试验,得出落区一定距离外的接收天线架设高度和信号有效接收高度的关系,为靶场遥测试验工程设计和数据分析提供模型和数据支撑。

When a missile is flying to the ground,it is difficult to receive the telemetry signal effectively because of the influence of the ground.In order to meet the requirement of near-ground signal telemetry in the development of ground attack ammunition and ground penetration ammunition,it is necessary to study the near-ground telemetry channel fading model.Based on the analysis of the influence of channel characteristics and combined with the field distance test,the relationship between the erection height of receiving antenna and the effective receiving height of signal beyond a certain distance of the landing area was obtained,which provides a model and data support for the design and data analysis of the project of shooting range telemetry test.