Null filter
    1.
    发明授权
    Null filter 失效
    空滤器

    公开(公告)号:US06753802B1

    公开(公告)日:2004-06-22

    申请号:US06820393

    申请日:1985-10-29

    IPC分类号: G01S1366

    CPC分类号: F41G7/2286 F41G7/2253

    摘要: An electronic circuit for use in an anti-radiation missile system of the type which uses the electromagnetic transmissions of a target radar for guidance information, detects when the missile has flown into a target null and is no longer receiving energy from one of the main lobes or side lobes of the target radar transmitter. When this condition is detected, the circuit causes an attenuation in the epsilon error guidance signal to momentarily prevent guidance commands based upon the now suspect epsilon error signals from being implemented.

    摘要翻译: 一种用于防雷导弹系统的电子电路,其使用目标雷达的电磁传输用于引导信息,检测导弹何时飞入目标零点,并且不再从主波瓣中的一个接收能量 或目标雷达发射机的旁瓣。 当检测到这种情况时,电路使得ε误差引导信号中的衰减基于现在怀疑的ε误差信号被暂时地阻止引导命令。

    Digital video injection system (DVIS)
    2.
    依法登记的发明

    公开(公告)号:USH2099H1

    公开(公告)日:2004-04-06

    申请号:US09349357

    申请日:1999-07-06

    IPC分类号: H04N718

    摘要: A digital video injection system having a digital image source, means for image processing, a scan converter, a seeker-dynamics interface capable of controlling the image system and a digital system controller that is used to simulate real-time flight to an imaging system, such as an imaging weapons system. A method for injecting digital video and a digital video input product also are disclosed.

    Moving scene display for passive radiation-wave imaging system
    4.
    发明授权
    Moving scene display for passive radiation-wave imaging system 失效
    被动辐射波成像系统的移动场景显示

    公开(公告)号:US4593317A

    公开(公告)日:1986-06-03

    申请号:US639890

    申请日:1984-08-13

    IPC分类号: G01R29/10 H04N7/00 H04N7/18

    CPC分类号: G01R29/10 H04N7/005

    摘要: A system which processes analog signals from millimeter wave sensing systemnto digital words in an organized manner which are then stored into a data memory representing the pixels in the wave images. The pixels are read out at a rate and format to a standard television monitor thus providing a real time display of the sensed image.

    摘要翻译: 将从毫米波感测系统的模拟信号以有组织的方式处理成数字字的系统,然后存储到表示波形图像中的像素的数据存储器中。 将像素以速率和格式读出到标准电视监视器,从而提供感测图像的实时显示。

    Real-time detailed scene convolver
    5.
    发明授权
    Real-time detailed scene convolver 失效
    实时详细场景卷积器

    公开(公告)号:US06330373B1

    公开(公告)日:2001-12-11

    申请号:US09267912

    申请日:1999-03-05

    IPC分类号: G06K964

    摘要: Provided is a system, and general method of use that may be applied to the specific system, that overlays appropriately selected impulse response maps of the response of a weapon system's optical detector over successive detailed supercomputer-generated imaged scenes. Each of the impulse response maps have been pre-calculated and stored in addressable memory in preparation for running a simulation. A preferred embodiment then convolves the response maps with the appropriately selected imaged scene in cooperation with a gyro model and, optionally, a model of the airframe on which the detector is carried. Errors determined from the gyro model are used to calculate and provide an address offset to modify values of the response map's base address for the appropriate map pixels. Scene pixel values that undergo convolution are selected using portions of these modified base address values. A pixel's intensity value from the impulse response map is selected by using these changed base address values prior to convolution as well as the position information from the gyro model. During the convolution, the intensity values assigned to the selected scene pixels' are multiplied by those values from the appropriate impulse response map. This generates resultant values that are summed to produce a final convolved representation, or convolved image, that may be further processed by a digital-to-analog converter to output an analog signal of voltage versus time. This analog signal may be filtered to reduce any associated noise. A preferred embodiment generates a realistic simulation of dynamically changing scenes as viewed by an actual system's optical detector in real time. The simulation may be presented to an actual weapon system's signal processing circuitry for performance evaluation of that circuitry.

    摘要翻译: 提供了可应用于特定系统的系统和一般使用方法,其覆盖武器系统的光学检测器对连续详细的超级计算机生成的成像场景的响应的适当选择的脉冲响应图。 每个脉冲响应图已预先计算并存储在可寻址存储器中,以准备运行仿真。 然后,优选实施例将响应图与适当选择的成像场景一起卷曲,该陀螺仪模型以及可选的携带检测器的机身的模型。 由陀螺仪模型确定的误差用于计算并提供地址偏移量,以修改响应图的相应地图像素的基址的值。 使用这些修改的基地址值的部分来选择进行卷积的场景像素值。 通过在卷积之前使用这些改变的基址值以及来自陀螺仪模型的位置信息来选择来自脉冲响应图的像素的强度值。 在卷积期间,分配给所选场景像素的强度值乘以来自适当脉冲响应图的那些值。 这产生相加的结果值以产生最终的卷积表示或卷积图像,其可以由数模转换器进一步处理以输出电压与时间的模拟信号。 可以对该模拟信号进行滤波以减少任何相关噪声。 优选实施例实时地生成由实际系统的光学检测器观察到的动态变化的场景的真实模拟。 可以将仿真呈现给实际的武器系统的信号处理电路,以用于该电路的性能评估。

    Interfering noise pulse eliminator and its use in a dicke type
radiometer circuit
    6.
    发明授权
    Interfering noise pulse eliminator and its use in a dicke type radiometer circuit 失效
    干扰噪声脉冲消除器及其在点式辐射计电路中的应用

    公开(公告)号:US4507661A

    公开(公告)日:1985-03-26

    申请号:US371706

    申请日:1982-04-26

    IPC分类号: H03G3/34 G01S13/86 H04B1/10

    CPC分类号: H03G3/345

    摘要: An apparatus and method removes interfering noise pulses from low-level ro-frequency signals through the application of a video-frequency circuit which causes detection of interfering pulses above an automatically and dynamically established threshold voltage level. Upon detection of an interfering pulse a control signal activates a hold circuit causing the conventional radiometric circuit to be interrupted during the period of the occurrence of the interfering pulse, thereby blocking passage of the pulse, while simultaneously the voltage level of the video-frequency signal is held constant.

    摘要翻译: 一种装置和方法通过施加视频电路来从低级射频信号中去除干扰噪声脉冲,该视频电路使干扰脉冲的检测高于自动和动态建立的阈值电压电平。 在检测到干扰脉冲时,控制信号激活保持电路,使得在发生干扰脉冲期间中断常规辐射电路,从而阻止脉冲通过,同时将视频信号的电压电平 保持不变。