本文選題：相控陣?yán)走_(dá)仿真 + 相控陣?yán)走_(dá)資源調(diào)度��； 參考：《電子科技大學(xué)》2014年碩士論文

【摘要】：相控陣?yán)走_(dá)作為一種日趨成熟的雷達(dá)體制,已被廣泛地應(yīng)用于軍事與民用的各個(gè)領(lǐng)域,針對(duì)相控陣?yán)走_(dá)的電子對(duì)抗因此成為研究的熱門方向。然而鑒于相控陣?yán)走_(dá)系統(tǒng)的復(fù)雜與精密程度,使得現(xiàn)實(shí)環(huán)境中相控陣?yán)走_(dá)的研制與實(shí)驗(yàn)變得十分困難與昂貴。與此同時(shí),計(jì)算機(jī)仿真技術(shù)以其便利性、靈活性及經(jīng)濟(jì)性體現(xiàn)出了其在雷達(dá)系統(tǒng)仿真中的優(yōu)勢。本文研究了相控陣系統(tǒng)仿真、相控陣資源調(diào)度以及相關(guān)的欺騙干擾效能。1.首先研究了相控陣?yán)走_(dá)系統(tǒng)的工作原理,分析了相控陣?yán)走_(dá)的天線陣列、回波信號(hào)生成、信號(hào)處理和數(shù)據(jù)處理模塊的組成及實(shí)現(xiàn)方法。設(shè)計(jì)并完成了相控陣?yán)走_(dá)的仿真軟件,分析了其軟件結(jié)構(gòu)、運(yùn)行流程,為相關(guān)的雷達(dá)對(duì)抗仿真提供了一個(gè)實(shí)驗(yàn)平臺(tái)。2.研究了相控陣?yán)走_(dá)的跟蹤數(shù)據(jù)率自適應(yīng)算法的原理,通過仿真比較了固定間隔法、遞推法以及修正遞推法的跟蹤性能。重點(diǎn)研究了兩種基于時(shí)間優(yōu)先(EDF)模型的調(diào)度算法的原理,建立了有時(shí)間窗固定調(diào)度間隔算法與有時(shí)間窗可變調(diào)度間隔算法的算法實(shí)現(xiàn)模型,仿真驗(yàn)證了它們的性能指標(biāo)。有時(shí)間窗可變調(diào)度間隔算法能夠在較低的平均時(shí)間偏移率的前提下,使得雷達(dá)事件執(zhí)行成功率與雷達(dá)調(diào)度間隔的利用率較優(yōu)。另外,基于時(shí)間利用最大化的思想,提出了一種將雷達(dá)事件的駐留時(shí)間分段(DTS)的調(diào)度算法,仿真結(jié)果表明該算法能夠進(jìn)一步增加調(diào)度間隔利用率與事件執(zhí)行成功率。3.研究分析了兩種假目標(biāo)欺騙式干擾與干擾效能評(píng)估準(zhǔn)則,結(jié)合雷達(dá)跟蹤數(shù)據(jù)率以及雷達(dá)資源調(diào)度算法,仿真分析了兩種假目標(biāo)干擾對(duì)雷達(dá)的干擾效能,并提出了一種針對(duì)資源調(diào)度的假目標(biāo)干擾策略,使得相控陣?yán)走_(dá)不能識(shí)別真實(shí)目標(biāo)并大幅降低雷達(dá)的搜索能力,取得了較好的干擾效果。
[Abstract]:Phased array radar, as an increasingly mature radar system, has been widely used in military and civilian fields. Therefore, electronic countermeasure against phased array radar has become a hot research direction. However, due to the complexity and precision of phased array radar system, it is very difficult and expensive to develop and experiment phased array radar in real environment. At the same time, the advantage of computer simulation technology in radar system simulation is demonstrated by its convenience, flexibility and economy. In this paper, the simulation of phased array system, the scheduling of phased array resources and the effectiveness of spoofing jamming are studied. Firstly, the principle of phased array radar system is studied, and the structure and implementation of antenna array, echo signal generation, signal processing and data processing module of phased array radar are analyzed. The simulation software of phased array radar is designed and completed. The software structure and running flow are analyzed. The principle of tracking data rate adaptive algorithm for phased array radar is studied. The tracking performance of fixed interval method, recursive method and modified recursive method are compared by simulation. The principle of two scheduling algorithms based on time-first EDF model is studied emphatically. The implementation models of fixed scheduling interval algorithm with time window and variable scheduling interval algorithm with time window are established, and their performance indexes are verified by simulation. The variable scheduling interval algorithm with time windows can make the success rate of radar event execution and the utilization ratio of radar scheduling interval better under the premise of lower average time offset. In addition, based on the idea of maximization of time utilization, a scheduling algorithm is proposed to divide the dwell time of radar events into DTS. The simulation results show that the algorithm can further increase the utilization rate of scheduling interval and the success rate of event execution. Two kinds of false target jamming and jamming effectiveness evaluation criteria are studied and analyzed. Combined with radar tracking data rate and radar resource scheduling algorithm, the jamming effectiveness of two false target jamming to radar is simulated and analyzed. A false target jamming strategy for resource scheduling is proposed, which makes phased array radar unable to identify real targets and greatly reduces radar search ability. Good jamming effect is achieved.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN958.92

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本文編號(hào)：1934864