公开(公告)号：WO2005084406A2

公开(公告)日：2005-09-15

申请号：PCT/US2005/007400

申请日：2005-03-03

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION, INC. ,  ZINK, katherine ,  ROSSMAN, Court, E. ,  LO, Zane

Inventor： ZINK, katherine ,  ROSSMAN, Court, E. ,  LO, Zane

CPC classification number: H01Q1/286 ,  H01Q9/28 ,  H01Q17/00 ,  H01Q21/26

Abstract: An embedded crossed bow tie antenna for a broad beam width and a 5:1 pattern bandwidth includes lossy material located underneath the distal ends of the bow ties to lower VSWR to below 3:1 across the entire band and to decrease nulls for more uniform antenna patterns at the high frequency end. In one embodiment, the vertical plates lower the low frequency cutoff of the antenna. DC shorting the low end of adjacent vertical plates together increases the capacitive coupling between the vertical plates and the base of the cavity to lower the low frequency cutoff and suppresses mode coupling to allow the antenna to retain its clean radiation patterns at the high end while at the same time reducing coupling between bow tie elements. In one embodiment, adding wedges of ground plane between bow tie elements reduces coupling and helps in the match and patterns at high frequencies.

Abstract translation: 用于宽波束宽度和5：1图案带宽的嵌入式横越弓形领带天线包括位于弓形束的远端下方的有损耗材料，以将VSWR降低至整个频带的3：1以下，并减少更均匀天线的零点 高频端的模式。 在一个实施例中，垂直板降低天线的低频截止。 DC将相邻垂直板的低端短路在一起增加了垂直板和腔的基座之间的电容耦合，以降低低频截止并抑制模耦合，以允许天线在高端保持其干净的辐射图，同时在 同时减少了领结元件之间的联接。 在一个实施例中，在弓形连接元件之间增加接地平面的楔形减少了耦合并且有助于在高频下的匹配和图案。

公开(公告)号：WO2005069943A2

公开(公告)日：2005-08-04

申请号：PCT/US2005/001799

申请日：2005-01-13

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. ,  NIEDZWIECKI, Joshua, D. ,  TAYLOR, Matthew, A. ,  LANDE, Mark

Inventor： NIEDZWIECKI, Joshua, D. ,  TAYLOR, Matthew, A. ,  LANDE, Mark

IPC: G01N33/48 ,  G01N33/50 ,  G01R23/16 ,  G01R27/04 ,  G01R27/32 ,  G01R35/00 ,  G06F19/00 ,  H04B3/46 ,  H04B3/56

CPC classification number: G01R31/31717 ,  G01R27/04 ,  G01R27/32 ,  G01R31/11 ,  G01R35/005 ,  H04B3/46 ,  H04B3/493 ,  H04B3/56 ,  H04B2203/5425 ,  H04B2203/5483 ,  H04B2203/5491 ,  H04B2203/5495

Abstract: A calibration system is provided for calibrating frequency domain reflectometers in the field by using both the scattering parameters of the multi-port junction determined at the factory and changing the offset and gain terms used in generating a complex reflection coefficient by using internal calibrated loads so that heavy, cumbersome external calibrated transmission lines are not required. In one embodiment the internal calibrated loads include RLC circuits and in another embodiment the internal calibrated loads include attenuators. Further, retesting or recalibration does not necessitate reconnecting the cable under test, which may remain connected to the reflectometer’s test port throughout the procedure.

Abstract translation: 提供了一种校准系统，用于通过使用出厂时确定的多端口结的散射参数和通过使用内部校准负载来改变用于产生复反射系数的偏移和增益项来校准现场的频域反射计，使得 不需要繁重繁琐的外部校准传输线。 在一个实施例中，内部校准负载包括RLC电路，在另​​一个实施例中，内部校准负载包括衰减器。 此外，重新测试或重新校准不需要重新连接被测电缆，这可能在整个过程中保持连接到反射计的测试端口。

公开(公告)号：WO2005062666A1

公开(公告)日：2005-07-07

申请号：PCT/US2004/033627

申请日：2004-10-12

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. ,  DEANGELIS, Matthew, M. ,  OSBORN, Jason, W.

Inventor： DEANGELIS, Matthew, M. ,  OSBORN, Jason, W.

IPC: H04R17/00

CPC classification number: H04R1/24 ,  B06B1/0633 ,  H04R1/2888

Abstract: An underwater acoustic projector comprising one or more cylindrical shell segments (8), each shell segment (8) having an even number of drivers (10) mounted therein, and the method of manufacturing said projector. The shell segments (8) preferably are formed with a longitudinal slot (14) and have arcuate segments (16), preferably of a dielectric material extending along the sides of the slot (14) for retaining the drivers (10) within the shell segments (8). The combined lengths of the driver is between 70% and 90% of the shell segment (8) length.

Abstract translation: 一种包括一个或多个圆柱形壳段（8）的水下声学投影仪，每个壳段（8）具有安装在其中的偶数个驱动器（10），以及制造所述投影仪的方法。 壳段（8）优选地形成有纵向槽（14），并且具有弧形段（16），优选地是沿着槽（14）的侧面延伸的介电材料，用于将驱动器（10）保持在壳段内 （8）。 驾驶员的组合长度在壳段（8）长度的70％至90％之间。

公开(公告)号：WO2005046116A1

公开(公告)日：2005-05-19

申请号：PCT/US2003/032336

申请日：2003-10-09

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. ,  BOLAND, Robert, P. ,  SIMONSON, Peter ,  LUTHI, Peter, O. ,  THIELE, Matthew, J.

Inventor： BOLAND, Robert, P. ,  SIMONSON, Peter ,  LUTHI, Peter, O. ,  THIELE, Matthew, J.

IPC: H04L7/00

CPC classification number: H04J3/0685 ,  G01S7/282 ,  G01S13/222 ,  H04W56/00

Abstract: In a communications or jamming system, accurate timing of the transmission of digitally processed signals is accomplished through the use of standard off-the-shelf components. In order to eliminate the need for high-cost, difficult to develop, specific digital hardware or real-time synchronous software not available from the standard off-the-shelf components, the output from the non-real time components is coupled to a real-time interface (70) that assures nanosecond timing accuracy regardless of timing errors introduced by the off-the-shelf components. In one embodiment, the signals to be transmitted are digitized and then packetized, with the data to be transmitted reconstructed using non-real time digital processing. In order to establish the exact time for transmission, the packet is given a time stamp (52) in the form of a header which indicates the exact time at which the packet is to be transmitted by the communications system, with the packet with header being transmitted to a storage buffer (60), the output of which is coupled to a real-time interface including a precise time output gate (62), the timing of which is controlled by a precision time reference having nano-second accuracy.

Abstract translation: 在通信或干扰系统中，通过使用标准现成的组件来实现数字处理信号的传输的准确定时。 为了消除高成本，难以开发的需要，特定的数字硬件或实时同步软件不能从标准的现成组件获得，非实时组件的输出耦合到真实的 - 时间接口（70），无论由现成的组件引入的定时误差如何，均可确保毫秒的定时精度。 在一个实施例中，要发送的信号被数字化然后被分组化，使用非实时数字处理重建数据。 为了建立准确的发送时间，分组被给予一个报头形式的时间标记（52），该时间戳表示通信系统要发送分组的确切时间，其中报头为 发送到存储缓冲器（60），其存储缓冲器（60）被耦合到包括精确时间输出门（62）的实时接口，其定时由具有纳秒秒精度的精确时间基准控制。

公开(公告)号：WO2005046061A1

公开(公告)日：2005-05-19

申请号：PCT/US2003/032338

申请日：2003-10-09

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. ,  MILLS, Diane, G.

Inventor： MILLS, Diane, G.

IPC: H03M13/03

CPC classification number: H04L25/03171 ,  H03M13/2957 ,  H03M13/63 ,  H04B1/7105 ,  H04L25/03216 ,  H04L25/03299 ,  H04L25/03331 ,  H04L2025/03611

Abstract: A multi-user turbo decoder combining multi-user detection and forward error correction decoding is disclosed in which randomly ordered indices (19) are assigned to interfering users before a decoding tree is constructed in the multi-user decoder for each symbol interval for every iteration and for each new block of data. By building the decoding tree in this manner for each symbol interval, a reduced complexity search is more likely to include paths (and nodes) in the tree containing the correct value for the channel symbols. All users (16) thus share in the benefit of root level placement in the decoding tree (14). In an alternative embodiment of the invention only one decoding pass (16) is accomplished and there is no re-construction of the decoding tree based on further random index ordering (29) for iterative decoding. No modification to the transmitted signaling method is needed.

Abstract translation: 公开了组合多用户检测和前向纠错解码的多用户turbo解码器，其中在针对每个迭代的每个符号间隔在多用户解码器中构造解码树之前，随机排列的索引（19）被分配给干扰用户 并为每个新的数据块。 通过以这种方式为每个符号间隔构建解码树，减少复杂度的搜索更可能包括树中包含用于信道符号的正确值的路径（和节点）。 因此，所有用户（16）共享在解码树（14）中的根级别放置的益处。 在本发明的替代实施例中，仅完成一个解码遍（16），并且基于用于迭代解码的进一步的随机索引排序（29）不再重新构建解码树。 不需要修改发送的信令方法。

公开(公告)号：WO2005045991A1

公开(公告)日：2005-05-19

申请号：PCT/US2003/032337

申请日：2003-10-09

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. ,  SAUCIER, Norman, E. ,  PAUL, Norman, D.

Inventor： SAUCIER, Norman, E. ,  PAUL, Norman, D.

IPC: H01Q3/00

CPC classification number: H01Q3/267

Abstract: A system for calibrating airborne direction finding antenna arrays eliminates the problem of trying to maintain a constant depression angle when flying an airplane directly over a calibration antenna to collect deep depression angle data. The deep depression angle data necessary for calibration is provided by data from a scale model (68) of the aircraft having a direction-finding array which simulates the actual direction-finding array on the aircraft. In order to collect deep depression angle data, the model is pivoted through 360 ° while maintaining a controlled depression angle. Thus, it is unnecessary for calibration to actually fly a plane to attempt to obtain deep depression angle measurements. In the subject system, only a single depression set of data is required from the aircraft. Thus, with the exception of baseline shallow depression angle data from this plane, the calibration data comes strictly from the scale model, which is much more easily obtained. Optimization techniques are used in which a set of data is collected from the airplane at one shallow depression angle which is used with that data collected from the scale model at the same shallow depression angle to derive a complex set of optimized weights that are then applied to the data collected from the model at the remainder of the depression angles to obtain the appropriate database for use on this aircraft for direction finding. In so doing, the aircraft need only be flown to establish data at a relatively shallow depression angle which can be easily collected by an aircraft flying in circles or banana pattern at some distance from the calibration antenna.

Abstract translation: 用于校准空中测向天线阵列的系统消除了在飞机直接在校准天线上飞行时保持恒定俯仰角度以收集深凹陷角度数据的问题。 用于校准所需的深凹陷角度数据由来自具有模拟飞行器上的实际测向阵列的测向阵列的飞行器的比例模型（68）的数据提供。 为了收集深凹陷角度数据，模型通过360°旋转，同时保持受控的俯角。 因此，校准实际上不需要飞行平面以试图获得深度凹陷角测量。 在主题系统中，从飞机上只需要一组数据。 因此，除了来自该平面的基线浅凹陷角数据之外，校准数据严格来自比例模型，这更容易获得。 使用优化技术，其中以一个浅凹陷角度从飞机收集一组数据，其与在相同浅凹陷角度处从比例模型收集的数据一起使用以导出优化权重的复杂集合，然后将其应用于 在余下的凹陷角度从模型收集的数据，以获得在该飞机上用于方向发现的适当的数据库。 在这样做时，飞机只需要飞行才能建立相对较浅凹陷角的数据，这些数据可以被距离校准天线一定距离的以圆形或香蕉模式飞行的飞机容易地收集。

公开(公告)号：WO2005041435A1

公开(公告)日：2005-05-06

申请号：PCT/US2003/030382

申请日：2003-09-25

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. ,  MACLEOD, Robert, B.

Inventor： MACLEOD, Robert, B.

IPC: H04B1/707

CPC classification number: H04L25/03331 ,  H04B1/7107 ,  H04L1/0048 ,  H04L25/03171 ,  H04L25/03286 ,  H04L2025/03611

Abstract: A system is provided for use with a multi-user detector MUD, which dramatically decreases the processing time for separating out interfering transmissions from a number of users by eliminating from each processing iteration consideration of those bit estimates for which the probability or estimate of their value exceeds a predetermined threshold and can therefore be declared "certain". In a Turbo MUD environment in which the output of the MUD is coupled back to the MUD (14) through an error correction system (28), the output of the error correction is thresholded (30) such that those bit estimates having probabilities or estimates greater than a predetermined threshold are assigned a quantized value and are eliminated from further processing by the MUD.

Abstract translation: 提供了一种与多用户检测器MUD一起使用的系统，其大大地减少了用于从多个用户分离干扰传输的处理时间，通过从每个处理迭代考虑那些其值的概率或估计值的比特估计， 超过预定阈值，因此可以被声明为“确定”。 在Turbo MUD环境中，MUD的输出通过纠错系统（28）耦合回到MUD（14），误差校正的输出被阈值化（30），使得具有概率或估计的那些比特估计 分配大于预定阈值的量化值并且被MUD进一步处理所消除。

公开(公告)号：WO2005040967A2

公开(公告)日：2005-05-06

申请号：PCT/US2004/025643

申请日：2004-08-05

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION, INC. ,  SIROIS, Joseph, A.

Inventor： SIROIS, Joseph, A.

IPC: G06F

CPC classification number: G06F17/15 ,  G01S7/021

Abstract: An algorithmic approaches that can be implemented in software/firmware/hardware that filters out stable PRI patterns detected within a system that is prosecuting against radar based transmissions are disclosed. The algorithms allow downstream computing assets to concentrate their limited resources on the more complex emitter PRI pattern types. Thus, a portion (e.g., stable signals) of the pulse deinterleave and PRI identification problem is solved without requiring the more computationally expensive processing. The disclosed algorithms can be employed, for example, in electronic support measures (ESM) systems, electronic intelligence (ELINT) systems, and/or a electronic countermeasures (ECM) systems. The algorithms employ linear detection, linear regression, or a combination of linear detection and linear regression, thereby providing a "dual voting" scheme that decreases the occurrence of false positives. Other algorithmic approaches can be used as well in a multi-voting scheme that considers PRI estimates from distinct analysis types.

Abstract translation: 公开了可以在软件/固件/硬件中实现的算法方法，该软件/固件/硬件过滤掉在基于雷达的传输的系统内检测到的稳定的PRI模式。 这些算法允许下游计算资产将其有限资源集中在更复杂的发射器PRI模式类型上。 因此，解决了脉冲解交织和PRI识别问题的一部分（例如，稳定的信号），而不需要更多的计算上昂贵的处理。 所公开的算法可以用于例如电子支持措施（ESM）系统，电子智能（ELINT）系统和/或电子对抗（ECM）系统中。 算法采用线性检测，线性回归或线性检测和线性回归的组合，从而提供减少假阳性发生的“双投票”方案。 其他算法方法也可以用于考虑不同分析类型的PRI估计的多投票方案。

公开(公告)号：WO2005011050A2

公开(公告)日：2005-02-03

申请号：PCT/US2004/022863

申请日：2004-07-15

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. ,  BOHLMAN, Walter, A.

Inventor： BOHLMAN, Walter, A.

IPC: H01Q

CPC classification number: H01Q9/28 ,  H01Q9/26

Abstract: An antenna with first and second spaced radiating elements extending from a vertex at respective first ends and diverging from each other in a direction outward from the vertex to respective second ends. Each radiating element second end is connected to a first end of a terminating element through a coupler. The second end of each terminating element is connected to a common ground plane.

Abstract translation: 具有第一和第二间隔开的辐射元件的天线，所述第一和第二间隔开的辐射元件在相应的第一端从顶点延伸并且在从顶点向外的方向上彼此发散到相应的第二端。 每个辐射元件的第二端通过耦合器连接到终端元件的第一端。 每个端接元件的第二端连接到一个公共接地层。

公开(公告)号：WO2005002005A2

公开(公告)日：2005-01-06

申请号：PCT/US2004/016658

申请日：2004-05-27

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. ,  SNELL, Kevin, J. ,  SETZLER, Scott, D.

Inventor： SNELL, Kevin, J. ,  SETZLER, Scott, D.

IPC: H01S

CPC classification number: G02B6/4214 ,  G02B6/02066 ,  G02B6/425 ,  H01S3/06704 ,  H01S3/0675 ,  H01S3/07 ,  H01S3/094003 ,  H01S3/094007 ,  H01S3/094019 ,  H01S3/0941 ,  H01S3/1616

Abstract: A modified V-groove structure in a double clad laser system permits multiple emitter side pumping of a fiber laser. In one embodiment, a stack of at least five emitters have individual outputs coupled into the inner cladding, with as many sources as desired coupled to the fiber to raise the cumulative pumping power to in excess of 2-KW, thus to achieve a 1-KW fiber laser.

Abstract translation: 双包层激光器系统中的改进的V沟槽结构允许光纤激光器的多发射极侧泵浦。 在一个实施例中，至少五个发射器的堆叠具有耦合到内包层中的单独输出，具有与所需光纤相连的多个源，以将累积泵浦功率提高到超过2KW，从而实现1- KW光纤激光器。