基于干擾平臺旋轉的反向交叉眼干擾研究
發(fā)布時間：2019-03-06 16:15
【摘要】：單脈沖雷達只利用一個脈沖信號就能夠獲得目標的角度信息,廣泛應用于現代精密跟蹤雷達,尤其是在導彈的末制導階段使用單脈沖角跟蹤技術體制能夠簡便準確地測得目標所在方向。單脈沖雷達對傳統(tǒng)的干擾技術具有很強的抗干擾能力,交叉眼干擾是少數能夠對單脈沖雷達產生有效干擾的方法之一。交叉眼干擾是一種人為地重構閃爍現象的角度干擾方法,常用于艦船和飛行器等平臺的自我保護,能夠誘導單脈沖跟蹤雷達脫離真實目標而指向虛假目標的方向。交叉眼干擾到達雷達陣面的相位不能嚴格反相,嚴重影響干擾效果,基于范阿塔陣列提出了反向交叉眼,能夠使信號間的相位盡可能不受傳輸路徑的影響。盡管已經建立了基于擴展分析法的反向交叉眼的數學模型,拓展了相位偏移和幅度增益的取值范圍。但針對反向交叉眼干擾方案的研究還不完善,已有的分析都是將干擾平臺旋轉角設定為定值,沒有考慮干擾平臺可能旋轉、抖動或者被不同方向的雷達探測的情況,在一定情況下會影響反向交叉眼的干擾效果。本文是在進行距離波門拖引干擾的基礎上進行研究,消除了干擾平臺回波對交叉眼干擾的影響,僅研究交叉眼干擾的調制信號到達跟蹤雷達的情況。將干擾平臺旋轉角設定為變量,提出能夠在此條件下仍能夠進行角度干擾的交叉眼方案,同時將多元線陣和多環(huán)路結構引入到反向交叉眼方案中。具體來講,本文的研究背景和成果主要包括以下幾個部分：第一部分主要研究了交叉眼干擾相關的基礎理論。首先,介紹了常見的測角方法,重點圍繞振幅和差單脈沖和相位和差單脈沖展開討論。其次,對針對單脈沖雷達的角度干擾進行了分析,著重介紹了相干干擾和非相干干擾。再次,概述了曾經應用于閃爍干擾且能夠繼續(xù)應用到交叉眼干擾的經典理論分析方法,主要包括線性擬合法和波前分析法。最后,簡單介紹了針對脈沖雷達的距離波門拖引干擾。第二部分提出了正交單環(huán)路旋轉反向交叉眼方案,引入穩(wěn)定因數的概念作為新的評判標準,衡量產生穩(wěn)定角度干擾的能力。在干擾平臺旋轉角為變量的前提下,提出了單環(huán)路旋轉反向交叉眼方案。分別對傳統(tǒng)兩點源反向交叉眼和單環(huán)路旋轉反向交叉眼方案進行數學推導,得到關于角度偏差的閉合解方程。以穩(wěn)定因數為標準,分別對傳統(tǒng)兩點源反向交叉眼和單環(huán)路旋轉反向交叉眼方案進行分析,獲得具有最佳穩(wěn)定因數的正交單環(huán)路旋轉交叉眼方案。同時,使用針對船舶或者飛行器的導彈的典型參數進行數值實驗,分析和比較的結果進一步證明正交單環(huán)路旋轉反向交叉眼方案的優(yōu)越性。第三部分主要研究了正交單環(huán)路旋轉反向交叉眼的干擾容限,利用角度參數特定邊界值來確定相位偏移和幅度增益的取值范圍。在干擾平臺旋轉角為變量的前提下,對曾經應用于傳統(tǒng)兩點源反向交叉眼的容限分析經典方法進行介紹,得出基于擴展分析法的容限分析更貼近實際情況。以角度參數特定邊界值為標準,對傳統(tǒng)兩點源反向交叉眼和正交單環(huán)路旋轉反向交叉眼分別進行干擾容限分析,推導出關于角度參數特定邊界值的閉合解方程。對傳統(tǒng)兩點源反向交叉眼和正交單環(huán)路旋轉反向交叉眼進行比較,從數學本質上對兩種方案加以區(qū)別。最后的數值實驗,進一步證明了正交單環(huán)路旋轉反向交叉眼方案的優(yōu)越性,并計算出典型參數下的相位偏移和幅度增益的取值范圍。第四部分主要研究了基于多點源與多環(huán)路的反向交叉眼改進方案。針對正交單環(huán)路旋轉反向交叉眼在實際應用中受限的問題,將多點源和多環(huán)路結構引入到反向交叉眼方案中。在干擾平臺旋轉角為變量的前提下,介紹了線性多點源反向交叉眼方案的兩種常用分析方法,得出基于擴展分析法的分析結果更貼近實際情況。同時,推導了關于角度偏差的閉合解方程。使用擴展分析法分別對本部分所提方案進行理論分析,得到關于角度偏差的閉合解方程。以穩(wěn)定因數和固定幅度增益下相位取值范圍為標準,相較于傳統(tǒng)方案,本部分所提兩種方案在理論以及實踐中均具有明顯優(yōu)勢。
[Abstract]:The single pulse radar can obtain the angle information of the target by only one pulse signal, and is widely applied to the modern precision tracking radar, in particular, the single pulse angle tracking technology system can be used for accurately and accurately measuring the direction of the target in the end-guidance phase of the missile. The single-pulse radar has strong anti-interference ability to the traditional jamming technology, and the cross-eye interference is one of the methods which can effectively interfere with the single-pulse radar. Cross-eye interference is an angle-jamming method for artificially reconstructing a flicker phenomenon, which is commonly used in the self-protection of a platform such as a ship and an aircraft, and can induce the single-pulse tracking radar to deviate from the real target and point to the direction of the false target. The phase of the cross-eye interference reaching the radar cross-eye can not be strictly inverted, and the interference effect is seriously affected. The inverted cross-eye is proposed based on the Van Arta array, and the phase between the signals can be made as free from the influence of the transmission path as much as possible. Although the mathematical model of the reverse cross-eye based on the extension analysis method has been established, the value range of the phase offset and the amplitude gain is expanded. but the research on the reverse cross-eye interference scheme is not perfect, the existing analysis is to set the rotation angle of the interference platform to a fixed value, and the situation that the interference platform can rotate, shake or be detected by the radar in different directions is not considered, In some case, that interference effect of the reverse cross-eye is influence. In this paper, the influence of the interfering platform echo on the cross-eye interference is studied on the basis of the distance-wave gate-induced interference, and only the modulated signals of the cross-eye interference reach the tracking radar. Setting the rotation angle of the interference platform as a variable, and proposing a cross-eye solution capable of performing angle interference under the condition, and simultaneously introducing the multi-element linear array and the multi-loop structure into the reverse cross-eye solution. In particular, the research background and achievements of this paper mainly include the following parts: the first part mainly studies the basic theory of cross-eye interference. First of all, a common method of angle measurement is introduced, with emphasis on the discussion of amplitude and difference single pulse and phase and difference single pulse. Secondly, the angle interference for single pulse radar is analyzed, and the coherent interference and non-coherent interference are emphatically introduced. Thirdly, the classical theoretical analysis method, which has been applied to the flicker interference and can continue to be applied to cross-eye interference, is described, which mainly includes the linear quasi-legal and the wave-front analysis method. Finally, the interference of the distance wave gate of the pulse radar is simply introduced. In the second part, an orthogonal single-loop rotary reverse cross-eye scheme is proposed, and the concept of the stability factor is introduced as a new evaluation criterion to measure the ability to generate stable angular interference. On the premise of the rotation angle of the interference platform, a single-loop rotary reverse-cross-eye scheme is proposed. In this paper, the traditional two-point source reverse cross-eye and the single-loop rotary reverse-cross-eye scheme are derived mathematically, and the closed-solution equation about the angular deviation is obtained. The orthogonal single-loop rotary cross-eye scheme with the best stability factor is obtained by analyzing the traditional two-point source reverse cross-eye and the single-loop rotary cross-eye scheme with the stability factor as the standard. At the same time, the numerical experiments, analysis and comparison of the typical parameters of the missile for the ship or the aircraft are used to further prove the superiority of the orthogonal single-loop rotating reverse cross-eye solution. The third part mainly studies the interference tolerance of the orthogonal single-loop rotating reverse cross-eye, and uses the specific boundary value of the angle parameter to determine the range of the value of the phase offset and the amplitude gain. On the premise of the rotation angle of the interference platform, the classical method of the tolerance analysis that has been applied to the traditional two-point source backward cross-eye is introduced, and the tolerance analysis based on the extension analysis method is more close to the actual situation. By using the specific boundary value of the angle parameter as the standard, the interference tolerance analysis is carried out on the traditional two-point source reverse cross-eye and the orthogonal single-loop rotary reverse cross-eye, respectively, and the closed solution equation for the specific boundary value of the angle parameter is derived. The traditional two-point source reverse cross-eye and the orthogonal single-loop rotating reverse cross-eye are compared, and the two schemes are distinguished from the mathematical essence. Finally, the advantage of the orthogonal single-loop rotary cross-eye scheme is proved, and the value range of the phase offset and the amplitude gain under the typical parameters is calculated. The fourth part mainly studies the improvement of the reverse cross-eye based on the multi-point source and the multi-loop. The multi-point source and the multi-loop structure are introduced into the reverse cross-eye scheme for the problem that the orthogonal single-loop rotating reverse cross-eye is limited in the practical application. On the premise of the rotation angle of the interference platform, two common analysis methods of the linear multi-point source reverse cross-eye scheme are introduced, and the result of the analysis based on the extension analysis method is more close to the actual situation. At the same time, the closed solution equation about the angle deviation is derived. The method of extension analysis is used to carry out the theoretical analysis of the scheme of the part, and the closed solution equation with respect to the angle deviation is obtained. Compared with the traditional scheme, the two schemes proposed in this part have obvious advantages in theory and practice.
【學位授予單位】：西安電子科技大學
【學位級別】：博士
【學位授予年份】：2016
【分類號】：TN958.4
本文編號：2435686
[Abstract]:The single pulse radar can obtain the angle information of the target by only one pulse signal, and is widely applied to the modern precision tracking radar, in particular, the single pulse angle tracking technology system can be used for accurately and accurately measuring the direction of the target in the end-guidance phase of the missile. The single-pulse radar has strong anti-interference ability to the traditional jamming technology, and the cross-eye interference is one of the methods which can effectively interfere with the single-pulse radar. Cross-eye interference is an angle-jamming method for artificially reconstructing a flicker phenomenon, which is commonly used in the self-protection of a platform such as a ship and an aircraft, and can induce the single-pulse tracking radar to deviate from the real target and point to the direction of the false target. The phase of the cross-eye interference reaching the radar cross-eye can not be strictly inverted, and the interference effect is seriously affected. The inverted cross-eye is proposed based on the Van Arta array, and the phase between the signals can be made as free from the influence of the transmission path as much as possible. Although the mathematical model of the reverse cross-eye based on the extension analysis method has been established, the value range of the phase offset and the amplitude gain is expanded. but the research on the reverse cross-eye interference scheme is not perfect, the existing analysis is to set the rotation angle of the interference platform to a fixed value, and the situation that the interference platform can rotate, shake or be detected by the radar in different directions is not considered, In some case, that interference effect of the reverse cross-eye is influence. In this paper, the influence of the interfering platform echo on the cross-eye interference is studied on the basis of the distance-wave gate-induced interference, and only the modulated signals of the cross-eye interference reach the tracking radar. Setting the rotation angle of the interference platform as a variable, and proposing a cross-eye solution capable of performing angle interference under the condition, and simultaneously introducing the multi-element linear array and the multi-loop structure into the reverse cross-eye solution. In particular, the research background and achievements of this paper mainly include the following parts: the first part mainly studies the basic theory of cross-eye interference. First of all, a common method of angle measurement is introduced, with emphasis on the discussion of amplitude and difference single pulse and phase and difference single pulse. Secondly, the angle interference for single pulse radar is analyzed, and the coherent interference and non-coherent interference are emphatically introduced. Thirdly, the classical theoretical analysis method, which has been applied to the flicker interference and can continue to be applied to cross-eye interference, is described, which mainly includes the linear quasi-legal and the wave-front analysis method. Finally, the interference of the distance wave gate of the pulse radar is simply introduced. In the second part, an orthogonal single-loop rotary reverse cross-eye scheme is proposed, and the concept of the stability factor is introduced as a new evaluation criterion to measure the ability to generate stable angular interference. On the premise of the rotation angle of the interference platform, a single-loop rotary reverse-cross-eye scheme is proposed. In this paper, the traditional two-point source reverse cross-eye and the single-loop rotary reverse-cross-eye scheme are derived mathematically, and the closed-solution equation about the angular deviation is obtained. The orthogonal single-loop rotary cross-eye scheme with the best stability factor is obtained by analyzing the traditional two-point source reverse cross-eye and the single-loop rotary cross-eye scheme with the stability factor as the standard. At the same time, the numerical experiments, analysis and comparison of the typical parameters of the missile for the ship or the aircraft are used to further prove the superiority of the orthogonal single-loop rotating reverse cross-eye solution. The third part mainly studies the interference tolerance of the orthogonal single-loop rotating reverse cross-eye, and uses the specific boundary value of the angle parameter to determine the range of the value of the phase offset and the amplitude gain. On the premise of the rotation angle of the interference platform, the classical method of the tolerance analysis that has been applied to the traditional two-point source backward cross-eye is introduced, and the tolerance analysis based on the extension analysis method is more close to the actual situation. By using the specific boundary value of the angle parameter as the standard, the interference tolerance analysis is carried out on the traditional two-point source reverse cross-eye and the orthogonal single-loop rotary reverse cross-eye, respectively, and the closed solution equation for the specific boundary value of the angle parameter is derived. The traditional two-point source reverse cross-eye and the orthogonal single-loop rotating reverse cross-eye are compared, and the two schemes are distinguished from the mathematical essence. Finally, the advantage of the orthogonal single-loop rotary cross-eye scheme is proved, and the value range of the phase offset and the amplitude gain under the typical parameters is calculated. The fourth part mainly studies the improvement of the reverse cross-eye based on the multi-point source and the multi-loop. The multi-point source and the multi-loop structure are introduced into the reverse cross-eye scheme for the problem that the orthogonal single-loop rotating reverse cross-eye is limited in the practical application. On the premise of the rotation angle of the interference platform, two common analysis methods of the linear multi-point source reverse cross-eye scheme are introduced, and the result of the analysis based on the extension analysis method is more close to the actual situation. At the same time, the closed solution equation about the angle deviation is derived. The method of extension analysis is used to carry out the theoretical analysis of the scheme of the part, and the closed solution equation with respect to the angle deviation is obtained. Compared with the traditional scheme, the two schemes proposed in this part have obvious advantages in theory and practice.
【學位授予單位】：西安電子科技大學
【學位級別】：博士
【學位授予年份】：2016
【分類號】：TN958.4
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