【正文】
備了煤礦安全生產(chǎn)監(jiān)控系統(tǒng),這些安全裝備的推廣應(yīng)用大大改善了我國(guó)煤礦安全生產(chǎn)狀況。若電磁波從移動(dòng)臺(tái)到基站的傳播時(shí)間為t,電磁波傳播速度為C,則移動(dòng)臺(tái)位于以基站位置為圓心,以Ct為半徑的圓上。而且子空間與是等價(jià)的,他們分別對(duì)應(yīng)的三組不同的基;也是等價(jià)的分別對(duì)應(yīng)的兩組不同的基。本文提出的超分辨率TOA定位方法就是針對(duì)巷道自身特點(diǎn)用于實(shí)現(xiàn)井下人員精確定位的一種新的定位方法,仿真結(jié)果證明了該算法的可行性和有效性。此時(shí),時(shí)域超分辨率譜估計(jì)理論就可以利用到、的估計(jì)問(wèn)題當(dāng)中,估計(jì)得到的就是DLOS的傳播時(shí)延估計(jì)。因此,AOA算法只需要2個(gè)基站就可以確定位置,且不確定因素較小,因?yàn)?條直線(xiàn)只有一個(gè)交點(diǎn)。關(guān)鍵詞:人員定位;TOA;超分辨率;時(shí)延估計(jì);MUSICThe Study on the Feasibility of Electromagnetic Superresolution TOA Method in Person Location in Mine TunnelsLi Hu, Fan Di,CaoMaoyong(1. College of Information and Electronic Engineering, Shandong University of Science and Technology, Shandong Qingdao 266510, China)Abstract: It is important for mine corp. to make their produce safe and efficient that underground people are exactly located. This article expounds three mainly electromagnetic wave location methods and analyses the feasibility of Time of Arrival (TOA) method. Furthermore it proposes a superresolution TOA method based on subspace deposition and MUSIC algorithm to resolve time resolution of TOA. The MUSIC TDE algorithm is simulated in the two typical conditions DLOS and OLOS, and the results show distinctly that the superresolution TOA method is valid and feasible to locate person in min