Ku波段非相参捷变频频综系统
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摘要
近年来,地形跟随/地形回避技术在军事领域中得到长足的发展。最优控制论、
    飞行控制、数字地图等技术领域的发展和实际应用,成为综合地形跟随/地形回避
    技术的前沿研究领域,但其较大的技术难度,使目前水平的地形跟随或地形回避
    技术,仍具有较大的存在价值。本文针对“九五”地形跟随雷达预研课题中的频
    综系统,在介绍了晶体振荡器、频率调制展宽技术、平衡混频器、微波控制等电
    路的基础上,就Ku波段非相参捷变频频综系统进行了几个方面的工作:
     在系统组成方面:按频段划分,分为频综高频和频综微波两个部分进行分析。
    频综高频部分有两个振荡器,分别为中频晶振和高中频本振,考虑到带通滤波器
    制作的难易,中频晶振不能取得太低;通过分析频综系统中的频率关系,权衡系
    统的稳定性和带通滤波器的抑制度,选取合适的中高频本振。频综微波部分,包
    括压控本振、上变频器、带通滤波器及微波放大器,频综高频部分输出的高中频
    信号在微波上变频器中与压控本振信号相混,产生上下边带信号,再由带通滤波
    器取出所需的边带信号。经微波放大器放大作为发射机的激励源。同时微波压控
    本振还为接收机微波混频器提供激励信号。
     从取得微波信号和完成捷变频作用的角度出发,对微波压控振荡器、微波上
    变频器、微波带通滤波器等关键部件的设计进行了分析。
     设计出的Ku波段非相参捷变频系统适用于不要求动目标显示功能的地形跟
    随雷达。该系统有较强的抗干扰性能,并具有效率高、耗电省、体积小、重量轻、
    成本低等特点。将非相参捷变频体制的地形跟随雷达用于低空导航吊舱,无疑是
    可行的方案。
Recently, the development and practical application of the optimal control theory,
     flight control, and digital map, etc, have more attraction for integrated the terrain
     following and terrain avoidance (TF/TA) techniques, but in consideration of the
     complexity of them, the current TF/TA techniques are still valuable and have much
     great progress in military. In the paper, for frequency synthesizers of TF radar-one of
     the concept research subjects in the 9th five-year plan, we present the circuits of crystal
     oscillator (CO), spread spectrum modulation, balanced mixer, microwave control, and
     so on. The Ku-band frequency synthesizer using incoherent frequency hopping is
     studied with emphasis.
    
    
     The frequency synthesizer is divided into the HF circuits and the microwave
     circuits according to the bands. The HF circuits consists of one IF CO and one IF-HF
     local oscillator (LO). The frequency of IF LO can抰 be selected too low for difficulty of
     designing the band-pass filter (BPF). Taking the stability of the system and the
     suppression of the BPF into account, the suitable IF-HF LO frequency is selected by
     analyzing frequencies relation of the system. Microwave circuit consists of a voltage-
     controlled LO, an up-converter, a BPF and a microwave amplifier. Outputs of the HF
     circuit are mixed with signals of the voltage-controlled LO at the up-converter, and the
     signals of upper side band and lower side band are generated. Desired side-band signals
     are then extracted via the BPF. The signals are amplified at microwave amplifier and are
     applied to the transmitter as a drive. Simultaneously, the voltage-controlled LO also
     provides a drive signal for the microwave mixer of receiver.
    
    
     From the point of getting microwave signals and achieving frequency hopping, this
     paper discussed the designs of key parts, such as microwave voltage controlled
     oscillator, microwave up-converter and microwave band-pass filter.
    
    
     The designed incoherent frequency hopping system in Ku-band is suited to the TF
     radar which doesn抰 require the feature of moving target indication. The system has
     strong anti-interference, high efficiency, low power, small size, light weight and low
     cost. It is a feasible scheme that is used to the terrain-following radar of incoherent
    
     ? frequency hopping in low sky navigation pod.
引文
[1] 《Ku波段压控本振》 阳泽彬 成电30周年论文集
    [2] 《肖特基势垒混频二极管的变频特性》阳泽彬 空载雷达1985年第二期
    [3] 《Ku波段混频器设计》 阳泽彬 成电30周年论文集
    [4] Microwave Filters, Impedance-Matching Networks, And Coupling Structures. Copy right 1964 by McGraw-Hill Inc.
    [5] 《机载脉冲多普勒雷达》 [美]盖·莫里斯.琳达.哈克里斯等著 信息产业部第十四研究所五部译 1998年8月
    [6] 《微波器件与电路》(修订本) 江苏科学技术出版社 1986年9月
    [7] 万心平,锁相技术,西安电子科技大学出版社,1988.
    [8] 郑继禹,万心平等,锁相环路原理与应用,人民邮电出版社,1984.
    [9] 张厥盛,锁相技术,西北电讯工程学院出版社,1986.
    [10] Roland E.Best,刘顺英等译,锁相环路原理、设计及其应用,人民邮电出 版社,1988. 12.
    [11] William F.Egan,张其善等译,锁相频率合成,人民邮电出版社,1984. 8.
    [12] 田孝文,锁相环原理、应用与计算机辅助分析,成都电讯工程学院出版 社,1986. 5.
    [13] 袁宇正,锁相与频率合成技术,武汉测绘科技大学出版社,1992. 2.
    [14] 张有正等,频率合成技术,人民邮电出版社,1984. 8
    [15] Wolaver Dan H.,PLLs Circuit Design,Preutice Hall, 1991.
    [16] Venceslav F. Kroupa,Noise properties of PLL system, IEEE Trans, on Communications, Vol.COM-30,NO. 10. Oct. 1982.
    [17] Werner Rosenkranz,Phase-locked loops with limiter phase detectors in the presence of noise,IEEE Trans, on Communications,Vol.COM-30,No.10,Oct., 1982.
    [18] Chang Y.Yoon,Willam C.Lindsey,Phase-locked loop performance in the presence of CW interference and additive noise, IEEE Trans, on Communications, Vol.COM-30,No. 10,Oct., 1982.
    [19] J.Noordanus,G.Meiling,Direct-division phase-lock loop at 12GHz,IEE Proceedings,Vol.130,Pt.H,No7,December 1983.
    [20] V.F.Kroupa,L.Sojdr,Phase-locked loops of higher orders,2nd International Conference on Frequency Control & Synthesis 1989.
    
    
    [21] 傅有光,微波数字锁相频率源,现代雷达,1992年1月.
    [22] 蒋德富,泵源锁相频率合成器的离散时间分析,现代雷达,1993年8月.
    [23] 杨晓东,小型化3cm高速微波锁相本振源的研究,两北工业大学硕士论 文,1995.
    [24] 杨俊,航空抗干扰通讯系统中快速跳频频率合成器的研究,西北工业大 学硕士论文,1988
    [25] 武国机,微波电子线路,西北工业大学出版社,1987. 3.
    [26] Robert L. Howald,Modeling phase noise generated by coherent sources, (Phase noise & BER,Part 9) Microwave & RF,Aug. 1994.
    [27] W.R.Bennerr,Methods of solving noise problems, Proc.IEEE,Vol.44,May, 1956.
    [28] 费元春等,微波固态频率源-理论·设计·应用,国防工业出版社,1994. 6.
    [29] 王彦斌主编,微波频率源及其测量,全国雷达军标委、黄河机器制造厂组 编,陕西科学技术出版社,1991. 3.
    [30] 陈为怀,李玉梅,微波振荡源,人民邮电出版社,1984. 12。
    [31] 陈炳初,带AFC系统的低相噪本振源,火控雷达技术,Vol.23,1994年9 月
    [32] 陈本刚,综合的地形跟随/地形回避技术分析,中国航空工业第六0七研 究所《论文集》,1998年3月