Method and system for measuring optical properties of a medium using digital communication processing techniques
    1.
    发明授权
    Method and system for measuring optical properties of a medium using digital communication processing techniques 有权
    使用数字通信处理技术测量介质光学特性的方法和系统

    公开(公告)号:US07995917B2

    公开(公告)日:2011-08-09

    申请号:US12566121

    申请日:2009-09-24

    IPC分类号: H04B10/08 G01N21/00

    CPC分类号: G01S7/4802

    摘要: A system for measuring properties of a medium includes an electromagnetic generator for forming a CW carrier, a digital encoder for forming a digital message, and a modulator for modulating the CW carrier with the digital message to form a digitally modulated CW carrier. The medium provides a channel for propagating the digitally modulated CW carrier. The system further includes a receiver configured to receive the propagated, digitally modulated CW carrier, and a processor for measuring at least one property of the medium. The medium may be disposed within a gaseous atmosphere, a body of water, or a cell of a laboratory.

    摘要翻译: 用于测量介质属性的系统包括用于形成CW载波的电磁发生器,用于形成数字消息的数字编码器,以及用数字消息调制CW载波的调制器,以形成经数字调制的CW载波。 介质提供用于传播数字调制CW载波的信道。 该系统还包括被配置为接收传播的数字调制CW载波的接收机和用于测量介质的至少一个性质的处理器。 介质可以设置在气体气氛,水体或实验室的电池中。

    Method and system for measuring optical properties of a medium using digital communication processing techniques
    2.
    发明授权
    Method and system for measuring optical properties of a medium using digital communication processing techniques 有权
    使用数字通信处理技术测量介质光学特性的方法和系统

    公开(公告)号:US07616888B2

    公开(公告)日:2009-11-10

    申请号:US10959368

    申请日:2004-10-06

    IPC分类号: H04B10/08 G01N21/00

    CPC分类号: G01S7/4802

    摘要: A system for measuring properties of a medium includes an electromagnetic generator for forming a CW carrier, a digital encoder for forming a digital message, and a modulator for modulating the CW carrier with the digital message to form a digitally modulated CW carrier. The medium provides a channel for propagating the digitally modulated CW carrier. The system further includes a receiver configured to receive the propagated, digitally modulated CW carrier, and a processor for measuring at least one property of the medium. The medium may be disposed within a gaseous atmosphere, a body of water, or a cell of a laboratory.

    摘要翻译: 用于测量介质属性的系统包括用于形成CW载波的电磁发生器,用于形成数字消息的数字编码器,以及用数字消息调制CW载波的调制器,以形成经数字调制的CW载波。 介质提供用于传播数字调制CW载波的信道。 该系统还包括被配置为接收传播的数字调制CW载波的接收机和用于测量介质的至少一个性质的处理器。 介质可以设置在气体气氛,水体或实验室的电池中。

    METHOD AND SYSTEM FOR MEASURING OPTICAL PROPERTIES OF A MEDIUM USING DIGITAL COMMUNICATION PROCESSING TECHNIQUES
    3.
    发明申请
    METHOD AND SYSTEM FOR MEASURING OPTICAL PROPERTIES OF A MEDIUM USING DIGITAL COMMUNICATION PROCESSING TECHNIQUES 有权
    使用数字通信处理技术测量介质的光学性质的方法和系统

    公开(公告)号:US20100070199A1

    公开(公告)日:2010-03-18

    申请号:US12566121

    申请日:2009-09-24

    IPC分类号: G06F19/00 H04B10/08

    CPC分类号: G01S7/4802

    摘要: A system for measuring properties of a medium includes an electromagnetic generator for forming a CW carrier, a digital encoder for forming a digital message, and a modulator for modulating the CW carrier with the digital message to form a digitally modulated CW carrier. The medium provides a channel for propagating the digitally modulated CW carrier. The system further includes a receiver configured to receive the propagated, digitally modulated CW carrier, and a processor for measuring at least one property of the medium. The medium may be disposed within a gaseous atmosphere, a body of water, or a cell of a laboratory.

    摘要翻译: 用于测量介质属性的系统包括用于形成CW载波的电磁发生器,用于形成数字消息的数字编码器,以及用数字消息调制CW载波的调制器,以形成经数字调制的CW载波。 介质提供用于传播数字调制CW载波的信道。 该系统还包括被配置为接收传播的数字调制CW载波的接收机和用于测量介质的至少一个性质的处理器。 介质可以设置在气体气氛,水体或实验室的电池中。

    Focal plane array with synchronous detection circuits for an active remote sensing system
    4.
    发明授权
    Focal plane array with synchronous detection circuits for an active remote sensing system 有权
    具有用于主动遥感系统的同步检测电路的焦平面阵列

    公开(公告)号:US07269359B1

    公开(公告)日:2007-09-11

    申请号:US10322692

    申请日:2002-12-18

    IPC分类号: H04B10/06

    摘要: The invention provides a synchronous detector for a unit cell of a read out integrated circuit (ROIC). The synchronous detector includes a bipolar photo-detector formed in a focal plane array (FPA) for sensing light energy. The bipolar photo-detector has one end coupled to a sense node of the unit cell, and another end coupled to a reference generator for biasing the bipolar photo-detector. The bipolar photo-detector is biased by the reference generator, resulting in the light energy sensed by the bipolar photo-detector to be provided to the sense node as a synchronously detected signal. A capacitor is coupled to the sense node for low pass filtering the synchronously detected signal. The reference generator provides alternating positive and negative voltage levels, where the positive voltage level forward biases the bipolar photo-detector and the negative voltage level reverse biases the bipolar photo-detector. The bipolar photo-detector provides alternating positive and negative current levels to the sense node, in response to the modulated laser light signal, and provides synchronous detection of the light energy sensed by each photo-detector.

    摘要翻译: 本发明提供了一种用于读出集成电路(ROIC)的单元的同步检测器。 同步检测器包括形成在用于感测光能的焦平面阵列(FPA)中的双极光检测器。 双极光检测器的一端耦合到单元的感测节点,另一端耦合到参考发生器,用于偏置双极光检测器。 双极光检测器被参考发生器偏置,导致由双极光检测器感测的光能量作为同步检测信号提供给感测节点。 电容器耦合到感测节点,用于低通滤波同步检测的信号。 参考发生器提供交替的正负电压电平,其中正电压电平向前偏置双极光检测器,负电压电平反向偏置双极光检测器。 响应于已调制的激光信号,双极光电检测器为感测节点提供交替的正和负电流电平,并且提供由每个光检测器感测的光能的同步检测。