本文選題：共形陣列 + 方向圖綜合�。� 參考：《南京航空航天大學(xué)》2014年碩士論文

【摘要】：共形天線陣列在滿足電性能要求的情況下,不影響載體的空氣動(dòng)力學(xué)特性,相比普通的線陣和平面陣具有不可替代的優(yōu)勢(shì),因而在民用和軍事領(lǐng)域得到越來(lái)越廣泛的應(yīng)用。錐臺(tái)共形陣列在導(dǎo)彈、飛機(jī)等場(chǎng)合發(fā)揮著重要的作用,因而開(kāi)展錐臺(tái)共形陣列的研究具有重要的國(guó)防意義。本文圍繞錐臺(tái)共形陣列方向圖分析與綜合,主要開(kāi)展了以下研究工作:1、通過(guò)坐標(biāo)變換和方向圖疊加原理完成了錐臺(tái)共形陣列的分析。應(yīng)用插值技術(shù)解決了基于實(shí)測(cè)單元方向圖的陣列分析問(wèn)題。最終將圓柱和錐臺(tái)共形陣列的算法分析結(jié)果與仿真結(jié)果對(duì)比驗(yàn)證了算法的正確性。2、將兩種不同的選擇算子聯(lián)合運(yùn)用對(duì)基于單一選擇算子的基本遺傳算法進(jìn)行了改進(jìn),并采用自適應(yīng)交叉概率和變異概率來(lái)代替?zhèn)鹘y(tǒng)的固定概率。實(shí)例分析表明改進(jìn)遺傳算法在收斂速度和全局尋優(yōu)能力上有了很大提高。3、將上述改進(jìn)遺傳算法分別應(yīng)用于圓柱共形陣列和錐臺(tái)共形陣列的低副瓣綜合和零點(diǎn)綜合問(wèn)題上,對(duì)陣元的激勵(lì)幅度和相位進(jìn)行優(yōu)化,最終得到滿足要求的方向圖。4、在上述共形陣列分析和綜合算法的基礎(chǔ)上,以Visual C++為平臺(tái),開(kāi)發(fā)出一款基于測(cè)試單元方向圖的共形陣列分析和綜合的軟件,并介紹了軟件的工作流程和用戶界面。
[Abstract]:Conformal antenna arrays have irreplaceable advantages over ordinary linear and planar arrays without affecting the aerodynamics characteristics of carriers without affecting the requirements of electrical performance. Therefore conformal antenna arrays are more and more widely used in civil and military fields.Conformal taper array plays an important role in missile, aircraft and so on, so the research of conformal conformal array is of great significance for national defense.This paper focuses on the analysis and synthesis of conformal conformal arrays of conformal conformal taper stations. The following research work is mainly carried out: 1. The analysis of conformal arrays of conformal taper stations is accomplished by means of coordinate transformation and the principle of superposition of pattern.The problem of array analysis based on measured cell pattern is solved by interpolation technique.Finally, the algorithm analysis results of cylindrical and conical conformal arrays are compared with simulation results to verify the correctness of the algorithm. The two different selection operators are combined to improve the basic genetic algorithm based on single selection operator.Adaptive crossover probability and mutation probability are used to replace the traditional fixed probability.The analysis of an example shows that the improved genetic algorithm has greatly improved the convergence speed and global optimization ability. The improved genetic algorithm is applied to the low sidelobe synthesis and zero point synthesis of cylindrical conformal array and conical conformal array, respectively.The excitation amplitude and phase of the element are optimized, and finally the pattern. 4 is obtained. On the basis of the above conformal array analysis and synthesis algorithm, Visual C is used as the platform.A conformal array analysis and synthesis software based on the pattern diagram of test unit is developed, and the workflow and user interface of the software are introduced.
【學(xué)位授予單位】：南京航空航天大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN820.12

【參考文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前1條

1 周子成;共形相控陣天線方向圖優(yōu)化技術(shù)研究[D];南京航空航天大學(xué);2009年

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本文編號(hào)：1757957