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Development of an airborne data acquisition system using telemetry and penetrator

使用遥测和穿透器开发机载数据采集系统

基本信息

批准号：
01840012
负责人：
SHIBUYA Kazuo
金额：
$ 15.87万
依托单位：
National Institute of Polar Research
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research
财政年份：
1989
资助国家：
日本
起止时间：
1989 至 1991
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-01840012/
关键词：
Penetrator Helicopter Telemetry Seismic explosions GPS デ-タ収録地震計

项目摘要

In order to develop an easily deployable penetrator and the central recording system on the helicopter for data acquisition by radio-telemetry, we made several experiments and obtained the following results.(1) V241-M type vertical seismograph was made, which is shown to give similar seismic waveform as compared with that obtained by L-22D.(2) IFP amplifier together with the V241-M seismograph was shown to endure impact shock of 2000G. However, telemetry module after the impact shock test resulted in sporadic bit-error generation in the demodulated seismic data.(3) Telemeter commands to control data acquisition and to test system diagnostics are designed for easy operation on the helicopter.(4) Without inclusion of special instruments for position determination into the Penetrator, impact position of the deployed penetrator can be estimated with a 10-30 m accuracy by means of GPS differential positioning. Height determination error is around +-10 m.(5) Hardness parameter of Antarctic ice surface snow was estimated as s=8 11, which predicts impact shock of 500-1000G from the fall 500 m above the snow surface and stop depth of the fin 0.5-1 m below the surface.(6) Declination of the deployed penetrator from vertical was within +-5ﾟ when it was fallen 200 m above the ground, which means non-requirement of specific attitude control device in the penetrator.

为了研制一种易于部署的穿透器和直升机上的无线电遥测数据采集中央记录系统，我们进行了多次实验，得到了以下结果：(1)制作了V241-M型垂直地震仪，其地震波形与L-22D地震仪的波形相似。(2) IFP放大器与V241-M型地震仪可承受2000G的冲击。然而，遥测模块经过冲击试验后，解调后的地震数据会产生零星的误码。控制数据采集和测试系统诊断的遥测命令设计便于在直升机上操作。(4)在不安装特殊定位仪器的情况下，利用GPS差分定位技术，可以估计出部署的穿甲弹的冲击位置，精度为10-30 m。测高误差在+- 10m左右。(5)南极冰面雪的硬度参数估计为s=8 11，预测在雪面以上500 m处落下500 ~ 1000g的冲击冲击，在地表以下0.5 ~ 1 m处尾翼停止深度。(6)部署穿甲弹在离地200 m时，垂直偏角在+-5‰以内，不需要在穿甲弹中安装特殊姿态控制装置。