MULTIUSER DETECTION AIDED MULTIPLE ACCESS DIFFERENTIAL FREQUENCY-HOPPED SPREAD SPECTRUM
    122.
    发明申请
    MULTIUSER DETECTION AIDED MULTIPLE ACCESS DIFFERENTIAL FREQUENCY-HOPPED SPREAD SPECTRUM 审中-公开
    多用户检测辅助多路访问差分频率扩展频谱

    公开(公告)号:WO2004098141A1

    公开(公告)日:2004-11-11

    申请号:PCT/US2003/024920

    申请日:2003-08-07

    CPC classification number: H04B1/715 H04B1/713 H04B2001/7152

    Abstract: Techniques for multiple access differential frequency-hopped spread spectrum (MA-DFHSS) aided by multiuser detection (MUD) (640) are disclosed. An initial DFH decoding (510) is performed to provide data estimates (435) for each user (640) represented in a received co-channel signal (400) . Interference cancellation is the performed using MUD (640), thereby providing an interference-cancelled signal (540). Data estimates remaining are then re-decoded. Iteration on the interference cancellation and re-decoding can be carried out to satisfy a particular rule of iteration, although iteration is not always necessary. The final decoded signal (565) can then be provided to its destination.

    Abstract translation: 公开了多用户检测(MUD)(640)辅助的多路访问差分跳频扩频(MA-DFHSS)技术。 执行初始DFH解码(510)以为接收到的同频道信号(400)中表示的每个用户(640)提供数据估计(435)。 使用MUD(640)执行干扰消除,从而提供干扰消除信号(540)。 然后重新解码剩余的数据估计。 可以进行干扰消除和重新解码的迭代以满足特定的迭代规则,尽管迭代并不总是必需的。 然后可以将最终解码信号(565)提供给其目的地。

    JOINT SYMBOL, AMPLITUDE, AND RATE ESTIMATOR
    123.
    发明申请
    JOINT SYMBOL, AMPLITUDE, AND RATE ESTIMATOR 审中-公开
    联合符号,电平和速率估计器

    公开(公告)号:WO2004095713A2

    公开(公告)日:2004-11-04

    申请号:PCT/US2003/038190

    申请日:2003-11-25

    IPC: H04B

    Abstract: The system in one embodiment relates to tightly integrating parameter estimation, symbol hypothesis testing, decoding, and rate identification. The present invention provides Turbo-decoding for joint signal demodulation based on an iterative decoding solution that exploits error correction codes. The system iteratively couples an initial amplitude estimator, a symbol estimator, a bank of decoders, and a joint amplitude estimator to produce the symbol estimates.

    Abstract translation: 一个实施例中的系统涉及紧密集成参数估计,符号假设检验,解码和速率识别。 本发明基于利用纠错码的迭代解码方案提供了用于联合信号解调的Turbo解码。 系统迭代地耦合初始振幅估计器,符号估计器,解码器组和联合振幅估计器以产生符号估计。

    CAVITY EMBEDDED ANTENNA
    124.
    发明申请
    CAVITY EMBEDDED ANTENNA 审中-公开
    CAVITY嵌入天线

    公开(公告)号:WO2004091040A2

    公开(公告)日:2004-10-21

    申请号:PCT/US2004/010008

    申请日:2004-04-02

    IPC: H01Q

    CPC classification number: H01Q21/30 H01Q5/357 H01Q7/00

    Abstract: A nested cavity embedded loop mode antenna is provided with an ultra wide band response by nesting individual embedded cavity meander line loaded antenna modules, with the meander lines coupled to a ground plane plate either capacitively or directly so as to provide as much as a 27:1 ratio of high frequency to low frequency cutoff. The nested meander line structure is exceptionally compact and eliminates the problem of a null in the antenna radiation pattern perpendicular to the face of the antenna, thus to provide a loop type antenna pattern at all frequencies across which the antenna is to be operated. The use of the nested meander line configuration provides a flush mount for the antenna having a footprint associated with the larger of the meander line cavities and thus the lowest frequency of operation, the nesting precluding the necessity of providing separate side-by-side meander line loaded antennas which would increase the real estate required. Additionally, a shunted slotline embodiment of the cavity-embedded antenna substitutes shunted slots for meander lines to provide for a low-cost wide bandwidth cavity-embedded antenna.

    Abstract translation: 嵌套腔嵌入式环路天线通过嵌套单个嵌入式腔曲折线加载天线模块而提供超宽带响应,曲折线可以电容或直接耦合到接地平面板,以提供高达27: 1比例的高频到低频截止。 嵌套曲折线结构非常紧凑,消除了垂直于天线的天线的天线辐射图中的零点的问题,从而在天线要被操作的所有频率处提供环形天线方向图。 使用嵌套曲折线配置为天线提供了具有与更大的曲折线腔相关联的覆盖区并因此是最低频率的操作的嵌入式安装,嵌套排除了提供分开的并排弯曲线的必要性 加载天线将增加所需的房地产。 此外,空腔嵌入式天线的分流槽槽实施例将用于曲折线的分流槽替代为低成本宽带宽空腔嵌入式天线。

    BANDWIDTH EFFICIENT CABLE NETWORK MODEM
    125.
    发明申请
    BANDWIDTH EFFICIENT CABLE NETWORK MODEM 审中-公开
    带宽有效的电缆网络调制解调器

    公开(公告)号:WO2004062124A1

    公开(公告)日:2004-07-22

    申请号:PCT/US2003/017449

    申请日:2003-06-02

    CPC classification number: H04L1/0001 H04L1/206 H04L5/1423

    Abstract: A MUD (115) enabled cable modem (615) that provides efficient use of cable television network bandwidth in the presence of interference and noise is disclosed. The modem (615) design provides for compatibility with existing network hardware and protocols so that bandwidth efficient modems (615) configured in accordance with the principles of the present invention may be added to the network without removing installed hardware and software. A bandwidth efficient modem (615) in the cable network head-end (505) increases reverse link capacity from the terminals to the head end, while bandwidth efficient modems (615) in cable network terminals increases forward link capacity from the head end (505) to the terminals. Bidirectional bandwidth efficiency is thereby enabled.

    Abstract translation: 公开了一种在存在干扰和噪声的情况下有效利用有线电视网络带宽的MUD(115)使能电缆调制解调器(615)。 调制解调器(615)设计提供了与现有网络硬件和协议的兼容性,使得可以将根据本发明的原理配置的带宽有效的调制解调器(615)添加到网络中,而不去除安装的硬件和软件。 电缆网络前端(505)中的带宽有效的调制解调器(615)增加了从终端到头端的反向链路容量,而有线网络终端中的带宽有效的调制解调器(615)从头端(505)增加了前向链路容量 )到终端。 从而实现双向带宽效率。

    HIGH ALTITUDE STRIPPING FOR THREAT DISCRIMINATION
    126.
    发明申请
    HIGH ALTITUDE STRIPPING FOR THREAT DISCRIMINATION 审中-公开
    用于威慑歧视的高海拔剥离

    公开(公告)号:WO2004061470A2

    公开(公告)日:2004-07-22

    申请号:PCT/US2003/040445

    申请日:2003-12-17

    IPC: G01S

    CPC classification number: G01S7/4802 G01S7/36 G01S7/414 G01S7/415 G01S7/495

    Abstract: A technique is provided that uses a dual mode seeker (IR and LADAR) for precise target dynamics measurement, which extends stripping to a much higher altitude than ground based radar. Initial results show that this approach works to altitudes in excess of 100 km. Stripping becomes a reliable way to discriminate lighter weight decoys from reentry vehicles at altitudes and ranges consistent with planned divert capabilities for terminal phase missile defense. It is a finding of this invention that the LADAR will improve the spatial resolution by a factor of five over typical missile defense IR seekers using a common aperture. The LADAR provides a 3D angle, angle, range (AAR) image for each laser pulse which is used to extract the precise target state vectors.

    Abstract translation: 提供了一种技术,其使用双模式探测器(IR和LADAR)进行精确的目标动态测量,其将剥离延伸到比基于地面的雷达更高的高度。 初步结果表明,这种方法适用于超过100公里的高度。 剥离成为一种可靠的方法,可以在与终端导弹防御计划的转移能力一致的高度和范围内区分轻型重物诱饵与再入式车辆。 本发明的发现是,使用公共孔径的LADAR将比使用公共孔径的典型的导弹防御IR寻求者将空间分辨率提高五倍。 LADAR为每个用于提取精确目标状态向量的激光脉冲提供3D角度,角度,范围(AAR)图像。

    METHOD FOR DEFLECTING FAST PROJECTILES
    127.
    发明申请
    METHOD FOR DEFLECTING FAST PROJECTILES 审中-公开
    用于偏移快速投影仪的方法

    公开(公告)号:WO2004058566A1

    公开(公告)日:2004-07-15

    申请号:PCT/US2003/040444

    申请日:2003-12-17

    CPC classification number: F41H13/005 F41H11/02 F42B10/66

    Abstract: A method for deflecting a projectile from an initial trajectory. Such a projectile has a first surface area and a second surface area and moves through a gaseous atmosphere with a surrounding plasma sheath. This method includes the step of directing electromagnetic radiation toward the projectile, wherein the electromagnetic radiation has a wavelength which is absorbed by the plasma sheath but is not substantially absorbed by the gaseous atmosphere.

    Abstract translation: 一种使弹丸从初始轨迹偏转的方法。 这种抛射体具有第一表面积和第二表面积,并且通过周围的等离子体鞘移动通过气态气氛。 该方法包括朝向射弹引导电磁辐射的步骤,其中电磁辐射具有被等离子体鞘吸收但不被气体气氛基本吸收的波长。

    DOUBLE MONOPOLE MEANDERLINE LOADED ANTENNA
    129.
    发明申请
    DOUBLE MONOPOLE MEANDERLINE LOADED ANTENNA 审中-公开
    双重MONOPOLE MEANDERLINE负载天线

    公开(公告)号:WO2004034514A1

    公开(公告)日:2004-04-22

    申请号:PCT/US2003/001139

    申请日:2003-01-15

    CPC classification number: H01Q11/14 H01Q9/36

    Abstract: A wideband double monopole meanderline loaded antenna having a single feed (110) through a vertical radiator (102), horizontal radiators (104) and vertical supports (114) connected to a ground place (112) is disclosed. Equalizing delay lines (108a, 108b) of the antenna can be manipulated to equalize reactance of the antenna thereby enabling proper impedance matching.

    Abstract translation: 公开了一种具有通过垂直辐射器(102)的单个馈送(110),连接到地面(112)的水平辐射器(104)和垂直支撑(114)的宽带双单极天线弯曲线加载天线。 可以操纵天线的均衡延迟线(108a,108b)以均衡天线的电抗,从而实现适当的阻抗匹配。

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