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1. 发明授权

US09157983B2 Method for real-time, automatic, wideband, high accuracy RF direction finding 有权
标题翻译：实时，自动，宽带，高精度RF方向发现的方法
公开(公告)号：US09157983B2
公开(公告)日：2015-10-13
申请号：US13653476
申请日：2012-10-17
申请人： Lars Karlsson
发明人： Lars Karlsson
IPC分类号： G01S5/02 , G01S3/74
CPC分类号： G01S3/74
摘要： This system and method provides a direction finding system that enables modern RF DF systems to analyze short duration signals in the entire instantaneous bandwidth. By providing a method to process wideband data, the invention drastically improves throughput and probability of intercept (POI). The invention is unique in that it does not require separate narrowband channels for analysis, and can simultaneously calculate azimuth and elevation estimates for every frequency in the bandwidth of an incident signal. It is also well-suited for fixed point, FPGA implementations making it a perfect match for modern state-of-the-art processing systems. The system and method capitalizes on the ability of Fourier Frequency Transform operations to accurately resolve incident wave phase at discrete frequencies. The system then uses the phase information from the individual elements in the array to arrive at an emitter azimuth angle. The azimuth angle is nearly simultaneously used in concert with lookup tables of all possible elevation angles to compare the arrival time delay between the array elements to determine emitter elevation angle.
摘要翻译：该系统和方法提供了一种方向发现系统，其使得现代RF DF系统能够在整个瞬时带宽中分析短持续时间信号。通过提供处理宽带数据的方法，本发明大大提高了吞吐量和拦截概率（POI）。本发明是独特的，因为它不需要单独的窄带信道用于分析，并且可以同时计算入射信号带宽中每个频率的方位角和高程估计。它也非常适合固定点，FPGA实现使其成为现代最先进的处理系统的完美匹配。该系统和方法利用傅里叶频率变换操作精确地解决离散频率入射波相位的能力。然后，系统使用来自阵列中的各个元件的相位信息来达到发射器方位角。方位角几乎同时用于所有可能仰角的查找表，以比较阵列元件之间的到达时间延迟，以确定发射器仰角。

2. 发明授权

US09332545B2 Method and system for optimizing the efficiency of SIGINT collection systems on mobile platforms with limited bandwidth connections 有权
标题翻译：用于在具有有限带宽连接的移动平台上优化SIGINT收集系统的效率的方法和系统
公开(公告)号：US09332545B2
公开(公告)日：2016-05-03
申请号：US14099055
申请日：2013-12-06
申请人： Lars Karlsson
发明人： Lars Karlsson
IPC分类号： H04J1/00 , H04W4/00 , H04W72/04 , H04L1/18 , H04W72/10 , H04L1/00 , H04W28/18
CPC分类号： H04W72/0453 , H04L1/0002 , H04L1/1861 , H04L1/1893 , H04W28/18 , H04W72/0446 , H04W72/10
摘要： A Method and System For Optimizing The Efficiency of SIGINT Collection Systems on Mobile Platforms with Limited Bandwidth Connections that is implementable in legacy signal collection systems. The resultant system first reduces potential upload bandwidth by eliminating whitespace in collected signals. Next, the system ignores collectable signals based on signals frequency or angle of arrival so as to identify energy of interest. Next, the system score and attributes a priority to each energy of interest, now known as signals of interest. The system then increases collection bandwidth on all signals of interest based on the score, priority and availability of resources. Finally, in real time, and based on SOI score and priority and the availability of downlink resources, the collected signal data is downlinked to the SIGINTcontrol center.
摘要翻译：一种在传统信号采集系统中可实现的带有限带宽连接的移动平台上SIGINT收集系统的效率优化方法和系统。所得到的系统首先通过消除收集的信号中的空白来减少潜在的上传带宽。接下来，系统基于信号频率或到达角度忽略可收集的信号，以便识别感兴趣的能量。接下来，系统得分并且对每个感兴趣的能量赋予优先权，现在称为感兴趣的信号。然后，系统会根据资源的分数，优先级和可用性来增加所有感兴趣的信号的收集带宽。最后，实时地，基于SOI评分和优先级以及下行链路资源的可用性，收集的信号数据下行到SIGINT控制中心。

3. 发明授权

US09161287B2 Technique for efficient message delivery in Ad Hoc, mesh, wireless computer networks 有权
标题翻译：技术在Ad Hoc，mesh，无线计算机网络中高效的消息传递
公开(公告)号：US09161287B2
公开(公告)日：2015-10-13
申请号：US13653112
申请日：2012-10-16
申请人： Lars Karlsson
发明人： Lars Karlsson
IPC分类号： G06F15/16 , H04W40/00 , H04L12/701
CPC分类号： H04W40/00 , H04L45/00
摘要： A Technique for Efficient Message Delivery in Ad Hoc, Mesh, Wireless Computer Networks. The method and system of the present invention permits reliable wireless messaging between nodes on an ad hoc basis. The method is executed at each node in an iterative fashion, If a node is not the destination node for a particular message, that node will retransmit a received message. As the message is received and retransmitted from node to node, the message will propagate through the networked nodes until it reaches its destination node. In order to prevent the retransmission of messages into perpetuity, the method will limit the number of times that a particular node can retransmit a particular message. Once that retransmission limit is reached by a particular node for a particular message, the message retransmission will cease at that node, and the message will expire. The message will also expire after a pre-set time to live parameter has elapsed.
摘要翻译：一种在特殊，网状，无线计算机网络中高效消息传递的技术。本发明的方法和系统允许节点之间的可靠的无线消息传送。该方法以迭代方式在每个节点处执行。如果节点不是特定消息的目标节点，则该节点将重传接收到的消息。当消息从节点接收和重传时，消息将通过网络节点传播，直到它到达其目标节点。为了防止消息重传成永久性，该方法将限制特定节点可以重传特定消息的次数。一旦特定消息的特定节点达到了该重发限制，那么消息重传将在该节点停止，并且该消息将到期。消息也将在预设时间到期后过期。

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