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    • 54. 发明公开
    • Systems and methods for using an evidence grid to eliminate ambiguities in an interferometric radar
    • 中使用的证据电网的系统和方法用于消除干涉雷达歧义
    • EP2397866A1
    • 2011-12-21
    • EP11168969.1
    • 2011-06-07
    • Honeywell International, Inc.
    • McKitterick, John B.
    • G01S13/72
    • G01S13/723G01S3/42G01S3/48G01S13/003G01S13/87G01S13/878G01S13/9023
    • A system (100) includes an Interferometric radar (102) that transmits a first detection signal over a first spatial region and a second detection signal over a second spatial region. The second region has a first sub-region in common with the first region. The system further includes a processing device (104) that assigns a first occupancy value to a first cell in an evidence grid. The first cell represents the first sub-region, and the first occupancy value characterizes whether an object has been detected by the first detection signal as being present in the first sub-region. The processing device calculates, based on the first and second detection signals, the probability that the first occupancy value accurately characterizes the presence of the object in the first sub-region, and generates a data representation of the first sub-region based on the probability calculation.
    • 一种系统(100)包括干涉雷达(102)确实发送在第一空间区域和在第二空间区域的第二检测信号的第一检测信号。 所述第二区域具有共同的第一子区域与所述第一区域。 该系统包括:(104)做了进一步的处理装置的第一占用值分配给在网格证据的第一小区。 第一小区darstellt第一子区域,并且所述第一占用值表征已经通过第一检测信号为存在于第一子区域中检测是否对象。 所述处理装置计算基于所述第一和第二检测信号,所述概率并精确地设定第一占用值表征所述对象在所述第一子区域中的存在,和基因率基于概率的第一子区域的数据表示 计算。
    • 60. 发明公开
    • Phased array spread spectrum system and method
    • 扩频系统与相控阵天线的原则
    • EP1093185A3
    • 2001-11-21
    • EP00123438.4
    • 1995-06-16
    • INTERDIGITAL TECHNOLOGY CORPORATION
    • Schilling, Donald L.
    • H01Q3/26H04B7/08G01S3/42
    • H04B7/0894G01S3/42H01Q3/22H01Q3/26H01Q3/2605H01Q3/2682H04B1/1081H04B1/69H04B1/707H04B7/084H04L1/06
    • A phased array spread spectrum system for maximizing signal strength of a spread-spectrum signal with multipath through the use of a first RF/IF section 21, a second RF/IF section 22, a first digital delay device 27, a second digital delay device 28, a first summer 29, a second summer 30, a despreader 31, a magnitude device 32, a shift register 33, and a comparator 34. The first RF/IF section 21 receives a plurality of spread-spectrum signals and the second RF/IF section 22 receives a plurality of phased versions of the plurality of spread-spectrum signals. The first and second digital delay devices 27, 28 delay the received plurality of spread-spectrum signals with respect to the plurality of phased versions of the plurality of spread-spectrum signals by a plurality of delays. The first and second summers 29, 30 combine the delayed spread-spectrum signals and the plurality of phased versions of the plurality of spread-spectrum signals as a plurality of combined signals. The despreader 31 despreads the plurality of combined signals as a plurality of despread signals. The magnitude device 32 generates a plurality of magnitude values from the plurality of despread signals. The shift register 33 stores a plurality of previous-magnitude values previously generated by the magnitude device 32 and a plurality of present magnitude values presently generated by the magnitude device 32. The comparator 34 compares the previous-magnitude values and the present-magnitude values and, responsive to the comparison, outputs a plurality of comparison signals. The first and second digital delay devices 27, 28 respond to the plurality of comparison signals by lengthening or shortening the plurality of delays.