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公开(公告)号：US5155492A
公开(公告)日：1992-10-13
申请号：US706664
申请日：1991-05-29
摘要： A dual mode active aperture phased array system for pulsed radar and continuous wave applications. The system may be switched between the two modes without appreciable loss of average effective radiated power. Both the voltage and current of the biasing power to the amplifying transistors is varied to accommodate the difference in peak amplitude power while maintaining the optimum average effective radiated power. The DC power supply is a chopper.
摘要翻译： 一种用于脉冲雷达和连续波应用的双模有源孔径相控阵。 系统可以在两种模式之间切换，而没有平均有效辐射功率的明显损失。 改变放大晶体管的偏置功率的电压和电流是变化的，以适应峰值功率的差异，同时保持最佳平均有效辐射功率。 直流电源是斩波器。
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公开(公告)号：US4749995A
公开(公告)日：1988-06-07
申请号：US705575
申请日：1985-02-26
申请人： Francis W. Hopwood , Jerry A. Kane
发明人： Francis W. Hopwood , Jerry A. Kane
CPC分类号： H01Q3/2682 , H01Q3/22 , H01Q3/42
摘要： An electronically steerable phased array radar antenna system for transmitting and receiving broadband linear FM signals is detailed. The antenna comprises a plurality of subarrays, each of which are connected by circulator means to a transmit-receive module. The highly linearized FM waveform is fed to the transmit-receive module, and a CW waveform is fed to a phase shifter in the module. The phase shifter applies a frequency offset to the CW waveform which is then added to the linear FM wideband signal for each antenna subarray. This frequency offset serves a beam steering function and can be considered a synthetic time delay.
摘要翻译： 详细介绍了一种用于发送和接收宽带线性FM信号的电子导向相控阵雷达天线系统。 天线包括多个子阵列，每个子阵列通过循环器装置连接到发射 - 接收模块。 高度线性化的FM波形被馈送到发射 - 接收模块，并且CW波形被馈送到模块中的移相器。 移相器对CW波形施加频率偏移，然后将其添加到每个天线子阵列的线性FM宽带信号。 该频率偏移用于波束转向功能，并且可以被认为是合成时间延迟。
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公开(公告)号：US4847624A
公开(公告)日：1989-07-11
申请号：US139512
申请日：1987-12-30
CPC分类号： G01S13/90 , G01S13/282
摘要： The present invention includes an apparatus that prebiases a transmitted radar signal. The prebiasing of the transmit signal automatically aligns the return signals in one dimension or dimensionally transforms the return signals thereby removing the need for one of the dimensional processing operations of a conventinal two dimensional return signal interpolator. A map function generator produces small frequency (phase) changes in the transmitted signal during each pulse over the entire integration or exposure period. The map function generator produces a parabolic frequency change control signal applied during the integration period. The control signal is divided into segments where each segment controls a single transmit pulse. The control signal modifies a linear frequency modulation control signal. conventionally produced by high resolution radar systems.
摘要翻译： 本发明包括一种预发射雷达信号的装置。 发射信号的预偏置自动地将返回信号对准一维，或者对返回信号进行尺寸变换，从而消除对传统二维返回信号内插器的维度处理操作之一的需要。 地图函数发生器在整个整合或曝光期间的每个脉冲期间产生发射信号的小频率（相位）变化。 地图函数发生器产生在积分期间施加的抛物线频率变化控制信号。 控制信号被分成段，每个段控制单个发射脉冲。 控制信号修改线性调频控制信号。 通常由高分辨率雷达系统生产。
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4.发明授权Means for aligning elevation beam pattern along an isodop in synthetic aperture mapping radar 失效用于在合成孔径映射雷达中沿着等离子体对准仰角波束图案的装置
公开(公告)号：US4611208A
公开(公告)日：1986-09-09
申请号：US538872
申请日：1983-10-04
IPC分类号： G01S13/90
CPC分类号： G01S13/90
摘要： Using an electronically scanned phased array antenna, a technique is developed for aligning a broad elevation beam along an isodop for use in synthetic aperture mapping. A beam steering controller algorithm for practical implementation of the technique is described. Implementation is realized by means of a beam steering controller and the radar computer. The controller first finds the space stabilized row and column for a given phase shifter. A look-up table furnished by the radar controller provides a slope correction as a function of row. The slope is multiplied by the element column to give the correct linear phase function. This term is then subtracted from the term used to point the beam peak.
摘要翻译： 使用电子扫描的相控阵天线，开发了一种用于沿着等值线对准广阔仰角的技术，用于合成孔径映射。 描述了用于实际实现该技术的波束转向控制器算法。 通过光束转向控制器和雷达计算机实现实现。 控制器首先找到给定移相器的空间稳定的行和列。 由雷达控制器提供的查表提供作为行的函数的斜率校正。 斜率乘以元素列，得到正确的线性相位函数。 然后从用于指示光束峰值的术语中减去该术语。
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