Gain equalization in DWDM networks
    2.
    发明授权
    Gain equalization in DWDM networks 有权
    DWDM网络增益均衡

    公开(公告)号:US06944401B2

    公开(公告)日:2005-09-13

    申请号:US10258511

    申请日:2001-04-24

    IPC分类号: H04B10/02 H04B10/08 H04J14/02

    摘要: A method of controlling a network (115) through which information is transmitted in channels (λ1, λ2, . . . λn) among nodes includes: (a) providing at a node a device (108) for removing from the network (115) and replacing on the network (115) a selected one (λi) of the channels, the device (108) including a first input port from the network (115) to the node and a first output port from the node to the network (115); (b) taking a measure of the strength (PλiDROP) of the received channel (λiDROP); (c) regenerating the channel (λiIN); (d) adjusting (114) the strength (PλiADD) of the regenerated channel (λiIN) to approximate the strengths of the remaining channels ((λ1, λ2, . . . λn)-λi; and (e) combining the regenerated and strength-adjusted channel (λiADD) with the remaining channels ((λ1, λ2, . . . λn)-λi) at the output port. The method further or alternatively includes (f) calculating an average signal strength (PAVERAGE) for each active channel; (g) establishing a target signal strength (PiTARGET) for each channel; (h) determining a required change (ΔPi) in signal strength; and, (i) sending the node a message to adjust the strength of a signal coupled to the first output port.

    摘要翻译: 一种控制网络(115)的方法,通过所述网络(115)在信道(λ1,λ2,...,λn)中传送信息, 在节点中包括:(a)在节点处提供用于从所述网络(115)移除并在所述网络(115)上替换所述信道的选定的一个(λSUB)的设备(108) 所述设备(108)包括从所述网络(115)到所述节点的第一输入端口和从所述节点到所述网络(115)的第一输出端口; (b)测量所接收的信道的强度(P lambdaiDROP ); (c)再生该通道(λIIN); (d)调整(114)再生通道(λIINI)的强度(λ)以近似剩余通道的强度((λ1) λ)和(e)将再生和强度调整后的组合 与其余通道((λλ1,λ2,λ2,λ2,λ2))的通道(λ (f)计算每个活动通道的平均信号强度(P>平均值);(g)计算每个有效信道的平均信号强度(P < 为每个信道建立目标信号强度(P iTARGET );(h)确定信号强度中所需的改变(DeltaP );以及(i)发送节点 用于调整耦合到第一输出端口的信号的强度的消息。

    Adaptive or a priori filtering for detection of signals corrupted by
noise
    3.
    发明授权
    Adaptive or a priori filtering for detection of signals corrupted by noise 失效
    用于检测被噪声破坏的信号的自适应或先验滤波

    公开(公告)号:US5943170A

    公开(公告)日:1999-08-24

    申请号:US519006

    申请日:1995-08-24

    CPC分类号: G06K9/748 G06E3/005

    摘要: A method for pattern recognition and localization using a joint transform correlator and joint transform correlator. The method includes providing a joint image of a reference image and an input scene image at the input plane of the correlator, receiving the joint image and providing a Fourier transform interference field of the reference image and the input scene image, receiving the Fourier transform interference field and providing a joint power spectrum, compensating for noise prevailing within the input scene image by processing the joint power spectrum to produce a noise compensated joint power spectrum, and receiving the noise compensated joint power spectrum and providing a noise tolerant correlation signal so as to enhance pattern recognition and localization capabilities.

    摘要翻译: 一种使用联合变换相关器和联合变换相关器进行模式识别和定位的方法。 该方法包括在相关器的输入平面处提供参考图像和输入场景图像的联合图像,接收联合图像并提供参考图像和输入场景图像的傅里叶变换干扰场,接收傅里叶变换干扰 并提供联合功率谱,通过处理联合功率谱以产生噪声补偿的联合功率谱来补偿输入场景图像内的噪声,并且接收噪声补偿的联合功率谱,并提供噪声容限相关信号,以便 增强模式识别和本地化功能。