摘  要：針對現有彈載記錄儀回收方法存在的效率低、功耗大等不足，設計應用于彈載記錄儀回收的新型低功耗無線電搜尋定位系統。該無線電搜尋定位系統搭載于無人機，主要由無線通信模塊、GPS定位模塊、Flash存儲模塊、中央控制模塊等構成。載有信標裝置的彈載記錄儀著地后，無線通信模塊接收信標發射的無線電波，GPS定位模塊定位無人機對應坐標，中央控制模塊將無線電信號強度值和對應GPS坐標存儲于Flash芯片，無人機工作一定時間后返回，上位機讀取存儲信息，利用RSSI定位算法和三邊測量方法估算信標位置，從而快速回收彈載記錄儀。通過定點模擬試驗驗證該定位系統的可實現性，為以后的彈載記錄儀回收提供有效的方法。
關鍵詞：無線電；彈載記錄儀回收；RSSI定位算法；三邊測量方法
文獻標志碼：A       文章編號：1674-5124（2016）01-0083-04
Radio positioning system for missile borne recorder recovery
SHEN Yuling1，2， XIE Rui1，2， LI Xin’e1，2， YAN Hongbiao1，2， DING Yonghong1，2，
YOU Wenbin1，2， CUI Lili1，2
（1. Key Laboratory of Instrumentation Science & Danamic Measurement，Ministry of Education China，
North University of China，Taiyuan 030051，China；
2. Science and Technology on Electric Test & Measurement Laboratory，North University of China，
Taiyuan 030051，China）
Abstract: A new type of low-power radio searching and positioning system is designed for recovering missile-borne recorders. The system mounted on an unmanned aerial vehicle （UAV） is composed of a wireless communication module， a GPS positioning module， a FLASH memory module and a central control module. After the recorder with a beacon device is landed， the wireless communication module received the radio wave emitted by the beacon and the GPS positioning module located the UAV coordinates. Then， the central control module stored the radio signal strengths and their GPS coordinates in the Flash chip. After running a certain period of time， the UAV returned， and meantime the host computer begins to read the stored data. Next， the beacon position is estimated with RSSI positioning algorithm and three-edge measuring method so that the missile-borne recorder can quickly recovered. The fixed-point simulation test has verified the realization of the system and has provided a new approach for reusing missile borne recorders.
Keywords: radio； missile borne recorder recovery； RSSI positioning algorithm； three edge measuring method
doi：10.11857/j.issn.1674-5124.2016.01.020