本文關(guān)鍵詞： 相控陣?yán)走_(dá) 天線近場(chǎng)測(cè)試 波控仿真 多任務(wù)　出處：《南京理工大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著雷達(dá)技術(shù)的快速發(fā)展,雷達(dá)天線測(cè)試技術(shù)也應(yīng)不斷滿足多種新型雷達(dá)天線的測(cè)試要求,不僅要提高測(cè)試精度,隨著雷達(dá)天線的復(fù)雜化,對(duì)測(cè)試系統(tǒng)的計(jì)算能力也提出了更高的挑戰(zhàn)。傳統(tǒng)的雷達(dá)天線測(cè)試技術(shù)主要是遠(yuǎn)場(chǎng)天線測(cè)試技術(shù),通過(guò)遠(yuǎn)場(chǎng)測(cè)試分析雷達(dá)的輻射特性。雖然遠(yuǎn)場(chǎng)測(cè)試能夠反映出雷達(dá)天線的基本性能,但也有多方面的不足,很容易受到外界環(huán)境的影響,不能夠準(zhǔn)確的反映出雷達(dá)天線的特性參數(shù)等。所以對(duì)新一代雷達(dá)天線測(cè)試技術(shù)的研究顯得越發(fā)重要。新一代天線測(cè)試技術(shù)是以近場(chǎng)測(cè)量技術(shù)為代表,近場(chǎng)測(cè)量技術(shù)具有測(cè)試精度高、抗干擾能力強(qiáng)、計(jì)算分析能力強(qiáng)等特點(diǎn),這種天線近場(chǎng)測(cè)試系統(tǒng)已經(jīng)廣泛應(yīng)用于多種雷達(dá)天線的測(cè)試過(guò)程。 隨著雷達(dá)技術(shù)的快速發(fā)展,相控陣?yán)走_(dá)技術(shù)憑借著其探測(cè)距離遠(yuǎn)、抗干擾能力強(qiáng)等特點(diǎn)逐漸成為雷達(dá)技術(shù)發(fā)展的主要方向。那么對(duì)相控陣?yán)走_(dá)天線的測(cè)試技術(shù)也就有了更高的要求,相控陣?yán)走_(dá)天線測(cè)試工作的復(fù)雜程度與普通天線相比要高出許多,其測(cè)試的工作量也是普通天線測(cè)試工作量的幾十倍。因此,對(duì)相控陣?yán)走_(dá)天線測(cè)試技術(shù)提出了更高的要求。相控陣?yán)走_(dá)天線近場(chǎng)測(cè)試技術(shù)要有更強(qiáng)的計(jì)算能力,能對(duì)成千上萬(wàn)個(gè)輻射單元的方向函數(shù)進(jìn)行運(yùn)算,此外相控陣?yán)走_(dá)天線近場(chǎng)測(cè)試系統(tǒng)要有更高的測(cè)試靈敏度。不僅如此,相控陣?yán)走_(dá)天線的測(cè)試不是單獨(dú)對(duì)雷達(dá)天線的測(cè)試,也需要對(duì)整體雷達(dá)系統(tǒng)有非常深刻的理解,在測(cè)試過(guò)程中要結(jié)合被測(cè)雷達(dá)自身的特點(diǎn)來(lái)實(shí)現(xiàn)天線參數(shù)的測(cè)量。 為了提高相控陣?yán)走_(dá)天線近場(chǎng)測(cè)試的工作效率,實(shí)現(xiàn)了多任務(wù)測(cè)試功能。在探頭單次掃描的條件下,對(duì)相控陣天線多個(gè)波束、多個(gè)頻率、多個(gè)通道方向圖的高密度高精確度測(cè)試,系統(tǒng)測(cè)試效率得到大幅提高。本文對(duì)上述技術(shù)做了一一闡述。
[Abstract]:With the rapid development of radar technology, radar antenna test technology should also continue to meet a variety of new radar antenna test requirements, not only to improve the test precision, with complicated radar antenna, computing capability of the test system is also put forward higher challenge. The traditional radar antenna test technology is a far field antenna test technology through the analysis of the characteristics of the radar radiation, the far field test. Although the far field test can reflect the basic performance of radar antenna, but also has many problems, it is easy to be influenced by external environment, can not accurately reflect the characteristics of radar antenna parameters. So the research on a new generation of radar antenna test technology it becomes more and more important. To test a new generation of antenna is near field measurement technology, with near field measurement technology high precision, strong anti-interference ability, strong ability of calculation and analysis. This antenna near field test system has been widely used in the testing process of various radar antennas.
With the rapid development of radar technology, radar technology by virtue of its long detection distance, strong anti-interference characteristics has gradually become the main direction of the development of radar technology. Then the test technology of phased array radar antenna will have higher requirements, phased array radar test work day line complexity is much higher compared with the the common antenna, several times of the testing workload workload is common antenna testing. Therefore, put forward higher requirements on phased array radar antenna test technology. Phased array antenna near field measurement technology have more strong computing ability, to tens of thousands of radiation units in the direction of function operation, in addition to phased array radar antenna near field the test system to test the sensitivity. Moreover, phased array radar antenna test is not a separate test of radar antenna, but also the need for the whole The body radar system has a very deep understanding. In the process of testing, it is necessary to measure the parameters of the antenna by combining the characteristics of the radar itself.
涓轟簡(jiǎn)鎻愰珮鐩告帶闃甸浄杈懼ぉ綰胯繎鍦烘祴璇曠殑宸ヤ綔鏁堢巼,瀹炵幇浜?jiǎn)澶氫徽d姟嫻嬭瘯鍔熻兘.鍦ㄦ帰澶村崟嬈℃壂鎻忕殑鏉′歡涓，

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