System and method for security inspection using microwave imaging
    1.
    发明授权
    System and method for security inspection using microwave imaging 有权
    使用微波成像进行安全检查的系统和方法

    公开(公告)号:US08681035B2

    公开(公告)日:2014-03-25

    申请号:US11148079

    申请日:2005-06-08

    IPC分类号: G01S13/89 G01S13/88

    摘要: A microwave imaging system uses microwave radiation provided by a microwave source to image targets. The system includes an array of antenna elements that are capable of being programmed with a respective direction coefficient to direct the microwave illumination from the microwave source toward a position on the target. The antenna elements are further capable of being programmed to receive reflected microwave illumination reflected from the position on the target. A processor is operable to measure an intensity of the reflected microwave illumination to determine a value of a pixel within an image of the target. Multiple beams can be directed towards the target to obtain corresponding pixel values for use by the processor in constructing the image.

    摘要翻译: 微波成像系统使用由微波源提供的微波辐射来对目标进行成像。 该系统包括天线元件阵列,其能够用相应的方向系数进行编程,以将来自微波源的微波照明引导到目标上的位置。 天线元件还能够被编程以接收从目标上的位置反射的反射的微波照明。 处理器可操作以测量反射的微波照明的强度以确定目标图像内的像素的值。 多个光束可以被引向目标以获得对应的像素值,供处理器在构建图像时使用。

    MICROPLASMA DEVICE WITH CAVITY FOR VACUUM ULTRAVIOLET IRRADIATION OF GASES AND METHODS OF MAKING AND USING THE SAME
    2.
    发明申请
    MICROPLASMA DEVICE WITH CAVITY FOR VACUUM ULTRAVIOLET IRRADIATION OF GASES AND METHODS OF MAKING AND USING THE SAME 审中-公开
    用于真空紫外线辐射的气体的微波炉装置及其制造和使用方法

    公开(公告)号:US20110109226A1

    公开(公告)日:2011-05-12

    申请号:US12613643

    申请日:2009-11-06

    IPC分类号: H05B31/26

    CPC分类号: H05G2/003

    摘要: An illumination device provides light to a flowing gaseous sample. The device includes a structure including a cavity configured to have a microplasma disposed therein. The cavity substantially encircles a cross-section of a channel that is configured to pass the flowing gaseous sample therethrough. The cavity is defined in part by an interior wall of the structure separating the cavity from the channel. The interior wall includes at least one orifice passing therethrough configured to provide to the flowing gaseous sample light generated by the microplasma. At least one electrode is configured to supply energy to the microplasma within the cavity.

    摘要翻译: 照明装置向流动的气体样品提供光。 该装置包括结构,其包括被配置为具有放置在其中的微血浆的空腔。 空腔基本上环绕通道的横截面,该通道被配置成使流动的气态样品通过其中。 空腔部分地由结构的内壁限定,以将空腔与通道分开。 内壁包括穿过其中的至少一个孔口,其构造成提供由微质体产生的流动气体样品光。 至少一个电极被配置为向空腔内的微血管提供能量。

    Convex Mount For Element Reduction In Phased Arrays With Restricted Scan
    3.
    发明申请
    Convex Mount For Element Reduction In Phased Arrays With Restricted Scan 有权
    用于限制扫描的分相阵列中的元素减少的凸形安装

    公开(公告)号:US20080094301A1

    公开(公告)日:2008-04-24

    申请号:US11552193

    申请日:2006-10-24

    IPC分类号: H01Q21/00

    CPC分类号: H01Q21/20

    摘要: Grating lobe free scanning in a phased array with sparse element spacing is obtained by restricting the maximum scan angle for elements in the array, and arranging the elements in a convex form. One convex form is a paraboloid, which may be continuous, or piecewise in nature, tiled with flat segments.

    摘要翻译: 通过限制阵列中的元素的最大扫描角度,并将这些元素排列成凸形形式,可以获得具有稀疏元素间隔的相控阵列中的光栅自由扫描。 一个凸形是抛物面,其可以是连续的,或者是分段的,平铺的平面部分。

    System and method for minimizing background noise in a microwave image using a programmable reflector array
    4.
    发明授权
    System and method for minimizing background noise in a microwave image using a programmable reflector array 有权
    使用可编程反射器阵列来最小化微波图像中的背景噪声的系统和方法

    公开(公告)号:US07327304B2

    公开(公告)日:2008-02-05

    申请号:US11088830

    申请日:2005-03-24

    IPC分类号: G01S13/00 H01Q15/00

    CPC分类号: G01N22/00

    摘要: A microwave imaging system captures a microwave image of a target and minimizes noise in the microwave image using phase differentiation. A reflector antenna array is provided including a plurality of antenna elements for reflecting microwave radiation towards the target and for reflecting microwave radiation reflected from the target towards a microwave receiver. A processor programs the antenna elements with respective first phase shifts to capture a first microwave image of the target, and programs the antenna elements with respective second phase shifts to capture a second microwave image of the target. The first phase shift of each antenna element is 180 degrees different than the second phase shift for that antenna element. The processor minimizes noise from a combination of the first microwave image and the second microwave image.

    摘要翻译: 微波成像系统捕获目标的微波图像,并使用相位微分使微波图像中的噪声最小化。 提供了一种反射器天线阵列,其包括多个天线元件,用于将微波辐射反射到目标物并用于将从目标物反射的微波辐射反射向微波接收器。 A处理器以相应的第一相移对天线元件进行编程以捕获目标的第一微波图像,并且用相应的第二相移对天线元件进行编程以捕获目标的第二微波图像。 每个天线元件的第一相移与该天线元件的第二相移成180度。 该处理器使来自第一微波图像和第二微波图像的组合的噪声最小化。

    Superconducting analog-to-digital converter with floating four-junction
squid bidirectional counter
    10.
    发明授权
    Superconducting analog-to-digital converter with floating four-junction squid bidirectional counter 失效
    具有浮动四联鱿鱼双向计数器的超导模数转换器

    公开(公告)号:US5012243A

    公开(公告)日:1991-04-30

    申请号:US397932

    申请日:1989-08-24

    申请人: Gregory S. Lee

    发明人: Gregory S. Lee

    IPC分类号: H03M1/48

    CPC分类号: H03M1/48 Y10S505/827

    摘要: A high-speed, high-resolution superconducting counting A/D converter providing greatly increased conversion speeds with a low device count. The superconducting counting A/D converter includes includes a double-junction SQUID quantizer and a bidirectional binary counter having n stages of floating four-junction SQUID flip-flops, where n is the number of bits of accuracy of the counter. The quantizer continuously tracks an analog signal, generating up-count and down-count voltage pulses of the same polarity on two different output lines for increasing and decreasing values of the analog current, respectively. The bidirectional binary counter algebraically counts the voltage pulses, increasing the binary count when up-count pulses are received and decreasing the binary count when down-count pulses are received. Several techniques for reading the contents of the bidirectional binary counter at the end of each sampling interval are also disclosed.

    摘要翻译: 高速,高分辨率超导计数A / D转换器,提供极高的转换速度,并具有较低的器件数量。 超导计数A / D转换器包括双结SQUID量化器和具有n级浮置四结SQUID触发器的双向二进制计数器,其中n是计数器的精度位数。 量化器连续跟踪模拟信号,在两个不同的输出线上产生相同极性的递增计数和递减计数电压脉冲,分别增加和减小模拟电流的值。 双向二进制计数器代数地对电压脉冲计数,当接收到递增计数脉冲时增加二进制计数,并且当接收到递减计数脉冲时减少二进制计数。 还公开了在每个采样间隔结束时读取双向二进制计数器的内容的几种技术。