一种炮弹落点搜寻装置设计  

Design of a searching device for shell falling point

作　　者：马游春[1,2] 赵宽 朱志斌 Ma Youchun;Zhao Kuan;Zhu Zhibin(National Key Laboratory for Electronic Measurement Technology,North University of China,Taiyuan 030051,China;Key Laboratory of Instrument Science&Dynamic Measurement of Ministry of Education,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学电子测试技术国家重点实验室,太原030051 [2]中北大学仪器科学与动态测试教育部重点实验室,太原030051

出　　处：《电子测量技术》2021年第3期149-154,共6页Electronic Measurement Technology

基　　金：国家重点实验室基金(6142001180412)项目资助。

摘　　要：为了回收炮弹弹载记录仪,需要准确找到炮弹落点位置,并且保证当落点在遮挡环境以及无线传输环境较差时候依然能准确找到落点位置,设计一种多定位的信标机,先用最后接收到的GPS定位信号缩小目标位置,再依靠检测目标信号强度来寻找飞行器落点。本设计由发射端的GPS模块、FPGA控制的解码模块、LoRa远距离无线模块、接收端的数据处理显示模块、定向天线等组成。实验为定点测试实验,分别在学校的三处不同地点进行定位测试,测试结果如下,GPS信号定位参数为东经112.44571、北纬38.01395,3个观测点处信号最强方向信号强度分别为-49、-58.5和-65 dBm。通过最终接受的定位信息以及后期接收到的信号强度信息即可以有效找到炮弹落点位置,证明该搜寻装置的可实现性,为弹载记录仪的回收提高有效的搜寻手段。In order to recover the projectile borne recorder,it is necessary to accurately find the position of the projectile impact point,and ensure that it can still accurately find the location of the impact point when the impact point is in the shielding environment and poor wireless transmission environment.A multi positioning beacon machine is designed.Firstly,the target position is reduced by using the final received GPS positioning signal,and then the projectile impact point is found by detecting the target signal strength.This design is composed of GPS module of transmitter,decoding module controlled by FPGA,LoRa remote wireless module,data processing and display module of receiver,directional antenna,etc.The experiment is a fixed-point test experiment,which is conducted in three different locations of the school.The test results are as follows:the positioning parameters of GPS signal are 112.44571 E,38.01395 N.the signal strength of the strongest direction at the three observation points are-49,-58.5 and-65 dBm respectively.Through the final received positioning information and the signal strength information received in the later stage,the impact position of the projectile can be found effectively,which proves the feasibility of the search device and improves the effective search means for the recovery of the missile borne recorder.

关 键 词：炮弹落点 信标机 FPGA 无线传输 复杂环境 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置]