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公开(公告)号：US4115776A
公开(公告)日：1978-09-19
申请号：US804956
申请日：1977-06-09
CPC分类号： F41G7/2246 , F41G7/2286 , G01S3/56 , G01S7/34 , G01S7/36 , H01Q3/14
摘要： The improved radiometric target seeking system incorporates automatic gain control features including phase tracking automatic gain and automatic gain scan amplitude controls in a system which is basically a dual-axis, gimballed, conical-scan radiometric sensor designed to operate in either active or passive modes and to provide angular line-of-sight rate steering signals to guidance control apparatus. Target-derived automatic gain control signals permit separation of desired stationary target signals from significant background clutter, and a unique adaptive processor minimizes degradation of tracking response and accuracy.
摘要翻译： 改进的辐射目标寻求系统包括自动增益控制特征，包括相位跟踪自动增益和系统中的自动增益扫描幅度控制，该系统基本上是设计成以主动或被动模式操作的双轴，圆顶扫描式圆锥扫描辐射传感器， 以向引导控制装置提供角度视距率转向信号。 目标导出的自动增益控制信号允许将期望的固定目标信号与显着的背景杂波分开，并且独特的自适应处理器使跟踪响应和精度的降低最小化。
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2.发明授权
公开(公告)号：US4200871A
公开(公告)日：1980-04-29
申请号：US906291
申请日：1978-05-15
CPC分类号： G01S13/341 , G01S13/586
摘要： A continuous-wave frequency-modulation active radiometric target seeking device performs search, acquisition, and tracking functions. A technique is provided for target range discrimination and recognition using a pair of narrow band i.f. filters also improving both signal-to-clutter ratio and signal-to-receiver noise ratio. Target search is accomplished with simultaneous and synchronized range and antenna azimuth scanning with range bins effectively swept across the target by variably modulating the transmitted carrier frequency. Recognition of a substantially point target is achieved by a bipolar pulse discriminator responsive to the i.f. filter pair. Upon target acquisition, tracking is maintained by imposing a high frequency dither upon the modulation frequency in a closed loop control using only a single i.f. filter.
摘要翻译： 连续波频率调制有源辐射目标寻找装置执行搜索，采集和跟踪功能。 提供了一种使用一对窄带i.f的目标范围鉴别和识别技术。 滤波器还提高了信号与杂波比和信号与接收机的噪声比。 目标搜索通过同步和同步的范围和天线方位扫描来实现，其中范围仓通过可变地调制发射的载波频率而有效扫过目标。 通过响应于i.f.的双极性脉冲鉴别器来实现基本点目标的识别。 过滤器对。 在目标获取时，通过在仅使用单个i.f的闭环控制中对调制频率施加高频抖动来维持跟踪。 过滤。
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