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51.发明授权System and method to determine burst transmission timing for data communications using radar 有权确定使用雷达进行数据通信的突发传输定时的系统和方法公开(公告)号：US07538713B1
公开(公告)日：2009-05-26
申请号：US11592377
申请日：2006-11-03
IPC分类号： G01S13/00
CPC分类号： G01S7/006
摘要： A method for transmitting bursts of data from a communications terminal to a mobile radar transceiver having inter-burst periods is disclosed. The method includes determining a propagation time between the communications terminal and mobile radar transceiver. A length of inter-burst periods of the mobile radar transceiver having an inter-burst timing can be determined. Bursts of data having a communication burst period that is less than the inter-burst period can be formed. The bursts of data from the communications terminal can be transmitted at a transmission time based on the inter-burst timing and the propagation time to enable each burst of data to be received by the mobile radar transceiver during one of the inter-burst periods.
摘要翻译： 公开了一种用于从通信终端向具有突发间周期的移动雷达收发器发送数据突发的方法。 该方法包括确定通信终端和移动雷达收发器之间的传播时间。 可以确定具有突发间定时的移动雷达收发器的突发间隔的长度。 可以形成具有小于突发间周期的通信突发周期的数据突发。 可以基于突发间定时和传播时间在传输时间发送来自通信终端的数据的突发，以使得在突发间期间之一期间能够由移动雷达收发器接收每个数据突发。
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公开(公告)号：US07522653B2
公开(公告)日：2009-04-21
申请号：US11046361
申请日：2005-01-27
IPC分类号： H04B1/00
CPC分类号： H04B1/7077
摘要： A method is disclosed for PN correlation and symbol synchronization of a spread spectrum signal at a receiver when a symbol boundary of the spread spectrum signal is not on a PN epoch or is otherwise unknown. The method includes the operation of modulating the spread spectrum signal with a PN code to form a potentially despread signal. The potentially despread signal can be integrated for a plurality of symbol times at a rate of N integrations per symbol time to form N symbol energies per symbol for a plurality of symbols. Each of the N symbol energies can correspond to a different symbol time hypothesis. The N symbol energies from the plurality of symbols can be added respectively to form N summed symbol time hypotheses. The Nth summed symbol time hypothesis having maximum power can be found. The Nth summed symbol time hypothesis can relate to a location of the symbol boundary.
摘要翻译： 当扩展频谱信号的符号边界不在PN纪元上时，公开了一种在接收机处的扩频信号的PN相关和符号同步的方法，或者以其他方式未知。 该方法包括利用PN码对扩展频谱信号进行调制以形成潜在的解扩信号。 潜在去扩展信号可以以每个符号时间的N个积分的速率被整合为多个符号时间，以对于多个符号形成每个符号的N个符号能量。 N个符号能量中的每一个可以对应于不同的符号时间假设。 可以分别添加来自多个符号的N个符号能量以形成N个相加的符号时间假设。 可以找到具有最大功率的第N个和符号时间假设。 第N个和符号时间假设可以与符号边界的位置有关。
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公开(公告)号：US06999423B2
公开(公告)日：2006-02-14
申请号：US09995219
申请日：2001-11-27
IPC分类号： H04L12/26
摘要： A method and system for optimizing a mobile radio network topology for an N node network where each node has K connecting links. A base network topology is established and a cost value is determined for the base network. It is determined if all possible local transformations on the base network topology have been performed and if not a local transformation is performed on the base network to form a transformed network. A cost is calculated for the transformed network and the cost is compared with the cost of a base network. The transformed network is established as the base network if the cost of the transformed network is less than the cost of the base network.
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公开(公告)号：US6098462A
公开(公告)日：2000-08-08
申请号：US16186
申请日：1998-01-30
申请人： Rand H. Hulsing, II
发明人： Rand H. Hulsing, II
IPC分类号： F02G1/044 , F16L37/24 , G01C19/5719 , G01C19/5747 , G01P15/08 , G01P15/097 , G01P15/10 , G01P15/18 , G01P9/04
CPC分类号： G01P15/18 , F02G1/044 , F02G1/0445 , F16L37/24 , G01C19/5719 , G01C19/5747 , G01P15/0802 , G01P15/097 , F02G2250/18 , F02G2253/03 , F16F2230/0052 , F16F2230/34 , G01P2015/0828 , Y10S73/01
摘要： A symmetrical link device for linking first and second coplanar devices each movably mounted in a frame such that when one of the first and second coplanar devices is moved, a substantially equal and opposite motion is imparted to the other of the first and second coplanar devices.
摘要翻译： 一种用于连接第一和第二共面设备的对称连接装置，每个可移动地安装在框架中，使得当第一和第二共面设备中的一个被移动时，基本相等且相反的运动被赋予第一和第二共面设备中的另一个。
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55.发明授权公开(公告)号：US10591591B1
公开(公告)日：2020-03-17
申请号：US15420424
申请日：2017-01-31
发明人： Sy Prestwich , Jeffrey B Bench , Richard A McNamee
摘要： A mainlobe detection process can include a number of tests that are performed to define when the monopulse antenna system will transition from open loop scanning to closed loop scanning and then to tracking. A hybrid tracking technique is also provided which adaptively discovers and corrects for phase alignment error. Magnitude-only tracking can be performed initially to locate the nulls in the azimuth and elevation ratios and to identify the magnitudes of these ratios at these nulls. Phase tracking can be then performed. During phase tracking, phase corrections can be repeatedly applied to the azimuth and elevation difference channels to correct any phase error that may exist. During this process, the magnitudes of the ratios can be used to determine how the phase corrections should be adjusted. Once the hybrid tracking process is complete, the monopulse antenna system is properly phase-aligned and phase tracking will be correctly employed.
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公开(公告)号：US10481253B1
公开(公告)日：2019-11-19
申请号：US15341281
申请日：2016-11-02
摘要： A monopulse tracker includes multiple dual-axis monopulse antenna systems that are angled with respect to one another. The orientations of the monopulse antenna systems create a much larger field of view for the monopulse tracker to eliminate the need to steer the monopulse tracker. The monopulse tracker can be configured to estimate a position of an object based on tracking information received from more than one monopulse antenna system therefore increasing the accuracy of the estimated position. The multiple monopulse antenna systems can be arranged in a low-profile housing to facilitate use of the monopulse tracker on aircraft.
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公开(公告)号：US10312587B1
公开(公告)日：2019-06-04
申请号：US15785260
申请日：2017-10-16
摘要： An antenna array can be quickly and efficiently designed to meet specified performance criteria. A system can be configured to receive various performance criteria as inputs, and from these inputs, identify how elements of an antenna array should be arranged so that the antenna array will meet the performance criteria. An iterative process can be performed to identify at least one arrangement of elements that will best meet the performance criteria while also complying with specified structural constraints.
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公开(公告)号：US10129178B1
公开(公告)日：2018-11-13
申请号：US14957375
申请日：2015-12-02
IPC分类号： H04L12/933 , H04L25/02 , H04L25/06
摘要： A block of ordered data elements comprising a plurality of sub-blocks each of which is to be processed by a different processing module in segments of the data elements having a particular length characteristic can be received in parallel streams on parallel communication channels. The data elements in each stream can be received and directed to the corresponding processing module. The tail of a segment split between two of the streams and received earlier in time than the corresponding head of the split segment can be buffered until the head is received on the other stream. The head and the tail of the split segment can then be processed as a whole segment in a corresponding processing module.
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公开(公告)号：US09983247B1
公开(公告)日：2018-05-29
申请号：US15409060
申请日：2017-01-18
CPC分类号： G01R29/0892 , G01R29/0878
摘要： The presence of a hidden signal can be detected efficiently using frequency domain multiplication. A detector system can be employed to search for a hidden signal across a wide spectrum in real time. The detector system can divide multiple antenna inputs into a series of blocks and then convert these blocks to the frequency domain possibly in a parallel fashion. Corresponding blocks from each input can then be conjugate multiplied, and the results of this conjugate multiplication can then be averaged over time. If a signal is hidden in the inputs, this averaging will reduce the noise floor thereby revealing the presence of the hidden signal at a particular frequency.
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公开(公告)号：US09350400B1
公开(公告)日：2016-05-24
申请号：US14850847
申请日：2015-09-10
发明人： David G. Landon , Osama S. Haddadin
CPC分类号： H04B1/1036 , H04B2001/1045 , H04L1/206
摘要： A method for receiving and removing co-channel interference from one or more received signals that comprise different symbol or chipping rates can comprise receiving a first composite signal and a second composite signal. The method can also comprise sampling the first composite signal and the second composite signal at a particular sampling rate that is sufficient to recover signal data from both the first composite signal and the second composite signal. Further, the method can comprise estimating from the second composite signal an estimated cross-coupled second signal within the first composite signal. The estimated cross-coupled second signal is estimated from at least the second composite signal at the particular sampling rate. Further still, the method can comprise recovering a substantially decoupled first data signal by removing at least a portion of the co-channel interference caused by the estimated cross-coupled second signal from the composite first signal.
摘要翻译： 用于从包括不同符号或码片速率的一个或多个接收信号接收和去除同信道干扰的方法可以包括接收第一复合信号和第二复合信号。 该方法还可以包括以足以从第一复合信号和第二复合信号恢复信号数据的特定采样速率对第一复合信号和第二复合信号进行采样。 此外，该方法可以包括从第二复合信号估计第一复合信号内的估计的交叉耦合的第二信号。 估计的交叉耦合的第二信号是以至少第二复合信号以特定采样率估计的。 此外，该方法可以包括通过从复合第一信号中去除由估计的交叉耦合的第二信号引起的同信道干扰的至少一部分来恢复基本去耦的第一数据信号。
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