某型飞艇平台微波测试环境研究

闫军凯; 张浩亮; 杨猛; 郝文析; 晏峰; 熊正锋; 王雪锋; 蒋廷勇; 徐敏杰

doi:10.11884/HPLPB201830.170302

某型飞艇平台微波测试环境研究

doi: 10.11884/HPLPB201830.170302

西北核技术研究所, 西安 710024

基金项目: 国家高技术发展计划项目

详细信息

作者简介:
闫军凯(1982-)，男，高工，从事强电磁环境实验与测试研究; yanjunkai@163.com

中图分类号: TJ43;O441
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- 文章访问数: 1058
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- 被引次数: 0
出版历程
- 收稿日期: 2017-12-29
- 修回日期: 2018-02-27
- 刊出日期: 2018-07-15

Research on microwave testing environments of an airship lifting platform

Northwest Institute of Nuclear Technology, P. O. Box 69-13, Xi'an 710024, China

摘要

摘要: 针对微波试验用某型飞艇升空平台开展试验环境测试研究，给出了中等气象条件下的测试结果。指出定姿飞控模式下的艇体方位角稳定性优于压航迹模式，两种飞控模式下艇体俯仰角和滚转角稳定性相近; 统计分析指出配试用艇载二轴天线稳定平台可有效隔离飞行中艇体三姿±10°以上的晃动，将接收天线主轴稳定指向辐射源，天线主轴方位、俯仰角控制精度优于±1°。研究了相对辐射源20~40 km，迎头、横向两种航线下，艇载4.5°波束宽度天线接收信号的幅度，统计分析指出迎头飞行时天线增益损失小于1 dB，信号稳定性优于±1 dB，横向飞行时天线增益损失约2.3 dB，信号稳定性约±3 dB。研究给出了飞行条件下艇体散射环境和地面散射环境对艇载天线接收信号幅度的影响。
- 微波 /
- 飞艇 /
- 试验环境 /
- 天线稳定平台 /
- 电磁散射
Abstract: This article presents a measurement on the testing environment of an airship lifting platform in real test range scene and moderate weather condition. The results show that the heading azimuth of the airship is more stable under fixed orientation flying mode than under fixed flight path mode, while the elevation and rolling angular stabilities under the two flying modes are almost undistinguishable. Statistical analysis proves that the equipped antenna stabilizing platform can isolate the carrier's angular shake as high as ±10° and continuously control the antenna beam axis to aim at the ground target with error within ±1°. The 20-40 km distance tests show that the airship carried receiving antenna with 4.5° beam width suffered a 1 dB gain loss and ±1 dB signal level fluctuation under head-on flying path, while the results degenerate to 2.3 dB gain loss and ±3 dB signal level fluctuation in lateral flying path. The article also presents some testing results about the airship lifting platform's EM scattering environment rooting from its metal structure as well as the test range's rough ground.
- microwave /
- airship /
- testing environments /
- antenna stabilize platform /
- EM scattering

HTML全文

图 1 两种自动驾驶模式下飞艇艇体方位角测试结果

Figure 1. Test results of the airship's head azimuth under two different autopilot modes

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图 2 两种自动驾驶模式下飞艇艇体俯仰角测试结果

Figure 2. Test results of the airship's head elevation under two different autopilot modes

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图 3 两种自动驾驶模式下飞艇艇体俯仰角测试结果

Figure 3. Test results of the airship's roll angle under two different autopilot modes

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图 4 天线稳定平台指向精度测试结果

Figure 4. Beam orientation test results of the antenna stabilization platform

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图 5 迎头飞行航线测试结果

Figure 5. Test results under head-on flight path

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图 6 侧向飞行航线测试结果

Figure 6. Test results under lateral flight path

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图 7 艇体电磁散射对接收天线增益的影响

Figure 7. Scattering effect of the airship's metal structure to the receiving antenna

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图 8 地面电磁散射对发射天线的影响

Figure 8. Scattering effect of the ground to the transmitting antenna

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