本文選題：干擾源定位 + 多普勒頻率��； 參考：《信號(hào)處理》2014年02期

【摘要】：民航地空通信受到無(wú)線電干擾會(huì)嚴(yán)重危機(jī)民航飛機(jī)的正常飛行。本文在深入研究地面干擾源定位問(wèn)題的背景下,提出基于分?jǐn)?shù)階模糊函數(shù)的飛機(jī)動(dòng)態(tài)跟蹤算法。首先提出一個(gè)新的回波信號(hào)模型,通過(guò)搜索分?jǐn)?shù)階模糊函數(shù)的峰值點(diǎn),實(shí)現(xiàn)了對(duì)多普勒頻率的瞬時(shí)估計(jì),并提出基于分?jǐn)?shù)階模糊函數(shù)的投影近似子空間角度跟蹤算法(FAF-PAST),實(shí)現(xiàn)了2維發(fā)射角和2維接收角的聯(lián)合動(dòng)態(tài)遞推估計(jì)。接下來(lái)根據(jù)陣列模型圖中的幾何關(guān)系,推導(dǎo)出了飛機(jī)的運(yùn)動(dòng)速度及三維位置坐標(biāo),從而實(shí)現(xiàn)飛機(jī)目標(biāo)的動(dòng)態(tài)跟蹤,為后續(xù)地面干擾源定位打下良好的基礎(chǔ)。仿真結(jié)果表明了該文提出的模型和算法的正確性和可行性。
[Abstract]:The radio interference of civil aviation ground-air communication will seriously endanger the normal flight of civil aviation aircraft. In this paper, an aircraft dynamic tracking algorithm based on fractional ambiguity function is proposed under the background of ground interference source location. First, a new echo signal model is proposed. By searching the peak point of fractional ambiguity function, the instantaneous estimation of Doppler frequency is realized. A projection approximation subspace angle tracking algorithm based on fractional ambiguity function is proposed, which realizes the joint dynamic recursive estimation of 2-D emission angle and 2-D receiving angle. Then according to the geometric relation in the array model diagram, the motion velocity and three-dimensional position coordinates of the aircraft are deduced, which can realize the dynamic tracking of the aircraft target and lay a good foundation for the subsequent ground interference source location. Simulation results show the correctness and feasibility of the proposed model and algorithm.
【作者單位】： 大連理工大學(xué)電子信息與電氣工程學(xué)部;大連大學(xué)信息工程學(xué)院;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(61172108,61139001,81241059) 國(guó)家科技支撐計(jì)劃項(xiàng)目(2012BAJ8B06)
【分類(lèi)號(hào)】：TN958

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相關(guān)期刊論文 前7條

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本文編號(hào)：1808529