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1.发明授权公开(公告)号：US07957451B1
公开(公告)日：2011-06-07
申请号：US12074799
申请日：2008-03-06
申请人： David K. Baugh , Joseph F. Jiacinto , Robert J. Frank , Michael N. Newhouse , Dana J. Jensen , Kent D. Benson , Daniel M. Zange , Gunther B. Frank , Bruce S. Kloster , Richard L. Robertson , Karl F. Hoech
发明人： David K. Baugh , Joseph F. Jiacinto , Robert J. Frank , Michael N. Newhouse , Dana J. Jensen , Kent D. Benson , Daniel M. Zange , Gunther B. Frank , Bruce S. Kloster , Richard L. Robertson , Karl F. Hoech
IPC分类号： H04B1/00
CPC分类号： H04B1/7143
摘要： A spread spectrum communication system includes a transceiver configured to transmit a spread spectrum waveform. The spread spectrum waveform comprises transmitted signals at varying frequencies within a radio frequency spectrum of operation. The frequency variation is controlled according to a hopping sequence. A spectral sensor of the communication system is configured to dynamically scan the radio frequency spectrum of operation and to generate channel occupancy data based upon the scans. A real time hopping sequence generator is configured to dynamically generate the hopping sequence in real time as a function of the channel occupancy data.
摘要翻译： 扩频通信系统包括被配置为发射扩频波形的收发器。 扩频波形包括在操作的射频频谱内的变化频率的发射信号。 根据跳频序列控制频率变化。 通信系统的光谱传感器被配置为动态地扫描操作的射频频谱并且基于扫描生成信道占用数据。 实时跳频序列生成器被配置为根据信道占用数据实时动态生成跳频序列。
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2.发明授权公开(公告)号：US07929458B1
公开(公告)日：2011-04-19
申请号：US11338307
申请日：2006-01-24
CPC分类号： H04L69/16 , H04L69/162 , H04W80/06
摘要： The present invention provides a method for using an Organization and Control Proxy (OCP) to configure a network communications infrastructure. OCP functionality is distributed across nodes possessing OCP elements. Intercommunication between the OCP elements is implemented via a unifying mesh waveform for network discovery, propagation of network and radio-frequency (RF) socket usage information, and management and control of instances of dynamic socket waveforms. An extensible language for specification of waveform properties is used by the OCP elements to negotiate spectral use information and to negotiate configurations between two or more endpoints of a dynamic socket waveform connection. A network stack is configured by the OCP to provide requested service to an end user.
摘要翻译： 本发明提供一种使用组织和控制代理（OCP）来配置网络通信基础设施的方法。 OCP功能分布在拥有OCP元素的节点上。 OCP元件之间的互通通过网络发现，网络传播和射频（RF）套接字使用信息的统一网格波形以及动态套接字波形实例的管理和控制来实现。 用于规范波形特性的可扩展语言由OCP元件用于协商频谱使用信息并协商动态套接字波形连接的两个或多个端点之间的配置。 网络堆栈由OCP配置以向最终用户提供所请求的服务。
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公开(公告)号：US07733839B1
公开(公告)日：2010-06-08
申请号：US11338233
申请日：2006-01-24
IPC分类号： H04J1/00
CPC分类号： H04L5/0005 , H04L5/0037 , H04L5/008 , H04W84/18
摘要： A system capable of operation with dynamic sockets includes a plurality of communications devices. Each of the plurality of communications devices includes high band channel radio resources capable of communications at 900-2800 MHz and socket radio resources capable of communications at 30-1000 MHz. The high band channel radio resources and the socket radio resources are significantly separated in frequency so that the high band channel radio resources and the socket radio resources are suitable for concurrent operation with no interference and minimal isolation, co-site problems to solve in each of the plurality of communications devices. The plurality of communications devices are connected to a unifying mesh network by the high band channel radio resources. The unifying mesh network is suitable for allowing the plurality of communications devices to communicate with one another. When data needs to be transferred among a group of communications devices, a dynamic socket connection is negotiated on the unifying mesh network and is then formed with the socket radio resources. The dynamic socket formation is suitable for allowing the unifying mesh network to offload continuous receiver-directed or multicast traffic from the unifying mesh network channel and to free up public ad hoc communications bandwidth of the unifying mesh network.
摘要翻译： 能够与动态插座一起操作的系统包括多个通信设备。 多个通信设备中的每一个包括能够在900-2800MHz通信的高频带信道无线电资源和能够以30-1000MHz通信的插座无线电资源。 高频信道无线电资源和套接字无线电资源在频率上显着分开，使得高频带信道无线电资源和套接字无线电资源适合并行操作，无干扰和最小隔离，每个节点中要解决的协同问题 多个通信设备。 多个通信设备通过高频带信道无线电资源连接到统一网状网络。 统一网状网络适于允许多个通信设备彼此通信。 当需要在一组通信设备之间传送数据时，在统一网状网络上协商动态套接字连接，然后形成套接字无线电资源。 动态套接字形成适合于允许统一网状网络从统一网状网络信道卸载连续的接收机导向或组播业务，并释放统一网状网络的公共自组织通信带宽。
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公开(公告)号：US07667620B1
公开(公告)日：2010-02-23
申请号：US11701666
申请日：2007-02-02
IPC分类号： G08B21/00
CPC分类号： B64D25/10
摘要： In some embodiments, a search and rescue communication may include one or more of the following features: (a) a rescue terminal, (b) a main terminal operably connected to said rescue terminal across a communication network, said main terminal sends an emergency notification message across said communication network to said rescue terminal, and (c) a survival terminal associated with an ejection seat, said survival terminal being in communication with said main terminal, wherein said emergency notification message is delivered by said main terminal when said ejection seat is ejected.
摘要翻译： 在一些实施例中，搜索和救援通信可以包括以下特征中的一个或多个：（a）救援终端，（b）通过通信网络可操作地连接到所述救援终端的主终端，所述主终端发送紧急通知 通过所述通信网络向所述救援终端发送消息，以及（c）与弹出座位相关联的生存终端，所述生存终端与所述主终端通信，其中当所述弹出座位为所述救生终端时，所述紧急通知消息由所述主终端传送 弹出
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公开(公告)号：US07606290B1
公开(公告)日：2009-10-20
申请号：US11416621
申请日：2006-05-03
IPC分类号： H04B1/00
CPC分类号： H04B1/7075
摘要： An architecture for a spread-spectrum transmitter-receiver system in an advanced tactical data link that allows the receiver to readily acquire and synchronize to a desired LPD signal. Signal acquisition is performed with a cyclic range search that uses multiple redundant known sequences mapped to a known message sequence in a highly repeated manner. By employing the invariance of the speed of light, and synchronicity between transmitter and receiver, the architecture can significantly reduce the computational complexity of the receiver. Additionally, the architecture enables ad hoc channel access, controlled latency, distance estimation, and distance-directed transmissions.
摘要翻译： 用于高级战术数据链路中的扩频发射机 - 接收机系统的架构，其允许接收机容易地获取并同步到期望的LPD信号。 以循环范围搜索进行信号采集，循环范围搜索使用以高度重复的方式映射到已知消息序列的多个冗余已知序列。 通过采用光速不变性和发射机与接收机之间的同步性，该架构可以显着降低接收机的计算复杂度。 此外，该体系结构可实现自组织频道访问，受控延迟，距离估计和距离定向传输。
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公开(公告)号：US07636383B1
公开(公告)日：2009-12-22
申请号：US11416619
申请日：2006-05-03
IPC分类号： H04B1/00
CPC分类号： H04B1/7075
摘要： A receiver for computationally efficient signal acquisition of spread-spectrum chips affected by Doppler shift in an advanced tactical data link. Received signals with a very low signal-to-noise ratio are parsed in a multi-stage signal acquisition circuit architecture, and compared to a known sequence to determine correlation over a subset of the known sequence. Chip-rate-coherent correlation is performed over an interval of time for which the effect of Doppler shift on the chip rate are negligible. A non-coherent block then integrates intermediate metrics to obtain final metrics for the entire known sequence. The parsing of the correlation into subsets and stages allows for a more computationally efficient solution to the Doppler shift chip rate error problem by reducing the number of intermediate metrics that must be computed at high speed.
摘要翻译： 用于在高级战术数据链路中受多普勒频移影响的扩频码片的计算有效信号采集的接收机。 在多级信号采集电路架构中解析具有非常低信噪比的接收信号，并与已知序列进行比较，以确定已知序列的子集上的相关性。 芯片速率相干相关是在多普勒频移对码片速率的影响可忽略的时间间隔上执行的。 然后，非相干块集成中间度量以获得整个已知序列的最终度量。 将相关性分解为子集和阶段允许通过减少必须以高速计算的中间度量的数量来更多地计算有效地解决多普勒频移码片率误差问题。
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公开(公告)号：US07570711B1
公开(公告)日：2009-08-04
申请号：US10414931
申请日：2003-04-16
IPC分类号： H04L27/36
CPC分类号： H04L27/362 , H03F1/0294 , H03F2200/336
摘要： A quadrature LINC transmission system processes a baseband input signal for transmission as a linearly amplified RF signal. An in-phase LINC element processes an in-phase baseband signal into an in-phase RF signal. A quadrature LINC element processes a quadrature baseband signal into a quadrature RF signal. An output combiner combines the in-phase RF signal with the quadrature RF signal to provide the linearly amplified RF signal. The in-phase LINC element has a constant envelope decomposition block for decomposing the in-phase baseband signal into in-phase baseband constant envelope components. Two up-converters convert the in-phase baseband constant envelope components to in-phase RF constant envelope components. Two non-linear amplifiers amplify the in-phase RF constant envelope components. A combiner combines the amplified in-phase RF constant envelope components to yield the in-phase RF signal. The quadrature LINC element is similar to the in-phase LINC element and provides the quadrature RF signal.
摘要翻译： 正交LINC传输系统处理用于传输的基带输入信号作为线性放大的RF信号。 同相LINC元件将同相基带信号处理成同相RF信号。 正交LINC元件将正交基带信号处理成正交RF信号。 输出组合器将同相RF信号与正交RF信号组合以提供线性放大的RF信号。 同相LINC元件具有用于将同相基带信号分解为同相基带恒定包络分量的恒定包络分解块。 两个上变频器将同相基带恒包络分量转换为同相RF恒包络分量。 两个非线性放大器放大同相RF恒定包络分量。 组合器组合放大的同相RF恒定包络分量以产生同相RF信号。 正交LINC元件类似于同相LINC元件，并提供正交RF信号。
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8.发明授权Direct conversion receiver using a dithered local oscillator to mitigate adjacent channel coherent interference 有权直接转换接收机使用抖动本地振荡器来减轻相邻信道相干干扰公开(公告)号：US07024172B1
公开(公告)日：2006-04-04
申请号：US09883016
申请日：2001-06-15
IPC分类号： H04M1/00
CPC分类号： H04B1/30
摘要： A direct conversion quadrature receiver and method are provided according to the invention. The receiver according to one embodiment includes a primary local oscillator (LO) that down-converts a received RF signal to a quadrature intermediate frequency (IF) signal. The receiver further includes a dithering controller responsive to the quadrature IF signal generated by the primary LO. The dithering controller communicates a feedback signal back to the primary LO. The feedback signal controls the primary LO in order to offset down-conversion of the RF signal by the quadrature IF signal. The dithering controller offsets the primary LO from a zero-IF signal in order to reduce a phase and gain error of the quadrature IF signal.
摘要翻译： 根据本发明提供了直接转换正交接收机和方法。 根据一个实施例的接收机包括将接收的RF信号下变频为正交中频（IF）信号的主本地振荡器（LO）。 接收机还包括响应于由主LO产生的正交IF信号的抖动控制器。 抖动控制器将反馈信号传送回主LO。 反馈信号控制主LO，以便通过正交IF信号来偏移RF信号的下变频。 抖动控制器将主LO与零中频信号进行偏移，以减少正交IF信号的相位和增益误差。
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