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    • 8. 发明申请
    • SYSTEMS AND METHODS FOR DIGITAL CORRECTION OF ABERRATIONS PRODUCED BY TILTED PLANE-PARALLEL PLATES OR OPTICAL WEDGES
    • 用平面平行板或光学楔形物生产的数字数字校正的系统和方法
    • US20150077583A1
    • 2015-03-19
    • US14031787
    • 2013-09-19
    • Raytheon Canada Limited
    • Stanislaw Szapiel
    • G06T5/00H04N5/232
    • G06T5/003G06T5/20H04N5/3572
    • An imaging method and apparatus to provide digital calibration of an optical system that includes one or more removable plane parallel plates or optical wedges. One example of the method includes generating an initial estimate of an optical point spread function of an optical imaging system that includes a plane parallel plate or optical wedge positioned in the optical train based on an optical prescription of the optical imaging system, capturing a first image of a scene using the optical imaging system, and applying a blind deconvolution process to the first image using the initial estimate of the optical point spread function to produce a refined estimate of the optical point spread function and produce a second image that is substantially without blur.
    • 一种用于提供包括一个或多个可移动平面平行板或光楔的光学系统的数字校准的成像方法和装置。 该方法的一个例子包括基于光学成像系统的光学处方产生光学成像系统的光点扩展函数的初始估计,其包括位于光学系列中的平面平行板或光学楔块,捕获第一图像 使用光学成像系统的场景,并且使用光点扩展函数的初始估计对第一图像应用盲去卷积处理,以产生光点扩展函数的精细估计,并产生基本上没有模糊的第二图像 。
    • 9. 发明申请
    • VIRTUAL ANTENNA EXTENSION FOR SAMPLED APERTURE ARRAYS
    • 虚拟天线延伸用于采样光栅阵列
    • US20140197984A1
    • 2014-07-17
    • US13742220
    • 2013-01-15
    • Raytheon Canada Limited
    • Jian WangAnthony M. PonsfordEmily WangRick McKerracher
    • G01S7/285
    • G01S13/288G01S13/5246G01S2013/0227G01S2013/0254
    • A high frequency surface wave radar (HFSWR) system with improved performance. Two or more transmitters including separate transmitting antennas (120, 122, 410) are used to improve the performance of the HFSWR over the performance of a comparable system with a single transmitter. In one embodiment, two transmitters are used, and configured to transmit pulses alternately, with a time interval of at least a round-trip travel time corresponding to a maximum target range between any pair of transmitted pulses. A physical receiving antenna array (130) includes a plurality of receiving antenna elements (135), and is connected to receiver circuitry configured to distinguish returns corresponding to pulses emitted by the different transmitters. The returns are concatenated in the receiver circuitry to achieve improved resolution.
    • 一种具有改进性能的高频表面波雷达(HFSWR)系统。 使用两个或更多个发射机,包括单独的发射天线(120,122,410),以提高HFSWR在具有单个发射机的可比系统的性能上的性能。 在一个实施例中,使用两个发射器,并且被配置为以对应于任何发射脉冲对之间的最大目标范围的至少一个往返旅行时间的时间间隔交替地传输脉冲。 物理接收天线阵列(130)包括多个接收天线元件(135),并且被连接到接收器电路,该接收器电路被配置为区分对应于由不同发射器发射的脉冲的返回。 返回值在接收器电路中连接以实现改进的分辨率。