【摘要】：隨著硬件設(shè)備的不斷發(fā)展,使得制造更小型化的毫米波導(dǎo)引頭成為了可能,也是毫米波技術(shù)研究中的迫切需求。另外近些年來隱身技術(shù)得到了高速的發(fā)展,因?yàn)檫@樣可以有效的避免敵對(duì)目標(biāo)的攻擊,成為了未來各類軍事設(shè)備的發(fā)展趨勢(shì)。使得對(duì)弱目標(biāo)的檢測(cè)前跟蹤技術(shù)研究成為了必要的研究,提高在低信噪比下的檢測(cè)性能和隨機(jī)分布的多目標(biāo)跟蹤技術(shù)也是目標(biāo)跟蹤領(lǐng)域的熱點(diǎn)問題。本文針對(duì)上述已經(jīng)存在的技術(shù)和實(shí)踐問題,研究了毫米波的信號(hào)處理技術(shù)和工程實(shí)現(xiàn),以及基于動(dòng)態(tài)規(guī)劃的多目標(biāo)的檢測(cè)前跟蹤技術(shù)。研究的主要研究?jī)?nèi)容如下:(1)從整體上對(duì)毫米波雷達(dá)的信號(hào)處理算法進(jìn)行研究,包括正交雙通道信號(hào)的獲取、單脈沖測(cè)角技術(shù)和雷達(dá)工作時(shí)使用的信號(hào)及性能分析。(2)對(duì)毫米波導(dǎo)引頭系統(tǒng)在實(shí)際應(yīng)用方面做了研究。首先從系統(tǒng)整體構(gòu)成的角度說明了系統(tǒng)的各個(gè)組成部分,然后對(duì)各個(gè)部分的工程實(shí)踐方法進(jìn)行了詳細(xì)的研究,對(duì)顯控系統(tǒng)的開發(fā)做了詳細(xì)的研究,使用了一種節(jié)省時(shí)間的數(shù)據(jù)校驗(yàn)方式,并使用數(shù)據(jù)產(chǎn)生的同時(shí)也被消化的方法完成了顯示和記錄。研究了組成信號(hào)處理機(jī)的各個(gè)子芯片及其工作方式。最后對(duì)信號(hào)的直接數(shù)字合成的數(shù)據(jù)生成方法和GPS數(shù)據(jù)的解算做了研究。(3)研究了弱目標(biāo)的檢測(cè)前跟蹤技術(shù),首先研究了單目標(biāo)的霍夫變換方法的檢測(cè)前跟蹤技術(shù)和動(dòng)態(tài)規(guī)劃?rùn)z測(cè)前跟蹤技術(shù),然后研究了多目標(biāo)的動(dòng)態(tài)規(guī)劃?rùn)z測(cè)前跟蹤技術(shù),最后針對(duì)動(dòng)態(tài)規(guī)劃?rùn)z測(cè)前跟蹤方法在計(jì)算上花費(fèi)時(shí)間較大的問題,本文提出了使用多個(gè)計(jì)算核心并行計(jì)算的動(dòng)態(tài)規(guī)劃方法。該方法利用了動(dòng)態(tài)規(guī)劃狀態(tài)轉(zhuǎn)移集不同時(shí),不同目標(biāo)的值函數(shù)累積值的區(qū)別,使與積累方向相同航跡的能量能夠沿航跡方向更好的積累,與積累方向不同的航跡在值函數(shù)上很難積累,這種方法使與積累方向相同的航跡更容易被檢測(cè),同時(shí)將計(jì)算量分擔(dān)到各個(gè)計(jì)算核心中,使總體計(jì)算時(shí)間減少。理論研究和仿真實(shí)驗(yàn)結(jié)果都可以展示出,與MT-DP-TBD處理方式相比,新方法提升了弱小目標(biāo)的檢測(cè)能力,同時(shí)減少了計(jì)算時(shí)間。
[Abstract]:With the development of hardware devices, it is possible to manufacture a miniaturized millimeter-wave seeker, which is also an urgent need in the research of millimeter-wave technology. In addition, stealth technology has been developed rapidly in recent years, because it can effectively avoid the attack of hostile targets, and has become the development trend of all kinds of military equipment in the future. It is necessary to study the pre-detection tracking technology for weak targets, and to improve the detection performance and random distribution of multi-target tracking technology at low SNR is also a hot issue in the field of target tracking. Aiming at the technical and practical problems mentioned above, the signal processing technology and engineering implementation of millimeter wave and the pre-detection tracking technology based on dynamic programming are studied in this paper. The main research contents are as follows: (1) the signal processing algorithm of millimeter-wave radar is studied, including the acquisition of orthogonal dual-channel signals. Monopulse angle-measuring technique and signal and performance analysis of radar. (2) the practical application of millimeter-wave seeker system is studied. First of all, it explains the components of the system from the point of view of the overall composition of the system, then makes a detailed study on the engineering practice methods of each part, and makes a detailed study on the development of the display and control system. A time-saving data validation method is used, and the display and recording are completed by using the method of data generation and digestion. The sub-chips and their working modes of the signal processor are studied. Finally, the data generation method of direct digital synthesis of signals and the solution of GPS data are studied. (3) the pre-detection tracking technology of weak targets is studied. Firstly, the detection pre-tracking technology of single target Hough transform method and the dynamic programming detection pre-tracking technique are studied, and then the multi-target dynamic programming detection pre-tracking technology is studied. Finally, aiming at the problem that the tracking method of dynamic programming before detection takes a lot of time to compute, this paper proposes a dynamic programming method which uses multiple computing cores in parallel computing. This method makes use of the difference of the cumulative values of the value functions of different targets in different dynamic programming state transfer sets, so that the energy of the same track as the accumulation direction can accumulate better along the track direction. It is difficult for track with different direction of accumulation to accumulate on the value function. This method makes it easier to detect the track with the same direction of accumulation. At the same time, the amount of calculation is shared among the calculation cores, and the total calculation time is reduced. The theoretical research and simulation results show that compared with the MT-DP-TBD method, the new method improves the detection ability of small and weak targets and reduces the computational time.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TJ765.331;TN911.7

【參考文獻(xiàn)】

相關(guān)期刊論文 前2條

1 曲長(zhǎng)文,黃勇,蘇峰,何友;基于隨機(jī)Hough變換的勻加速運(yùn)動(dòng)目標(biāo)檢測(cè)算法及性能分析[J];電子學(xué)報(bào);2005年09期

2 徐春夷;;國(guó)外導(dǎo)引頭技術(shù)現(xiàn)狀及發(fā)展趨勢(shì)[J];制導(dǎo)與引信;2012年02期

相關(guān)碩士學(xué)位論文 前2條

1 王玉濤;單脈沖測(cè)角技術(shù)及工程實(shí)現(xiàn)[D];西安電子科技大學(xué);2007年

2 劉寶平;基于高分辨雷達(dá)一維距離像的距離信息提取[D];哈爾濱工業(yè)大學(xué);2009年

，

本文編號(hào)：2366784