Geolocation
    1.
    发明授权
    Geolocation 有权
    地理位置

    公开(公告)号:US09453905B2

    公开(公告)日:2016-09-27

    申请号:US13738548

    申请日:2013-01-10

    申请人: ZIVA CORPORATION

    发明人: David Smith

    IPC分类号: G01S3/02 G01S5/02

    CPC分类号: G01S5/0273

    摘要: In selected embodiments, a process of geolocation of a transmitter uses a receiver with an antenna array that is non-line-of-sight (NLoS) to the transmitter. A first plurality of scatterers within line-of-sight (LoS) of the array is located using multilateration based on time difference of arrival (TDoA) from the first scatterers, and applying a spatial consistency requirement. Time of emission/reflection from the first scatterers is also determined. The coordinates and timing of the first scatterers are used to locate either the transmitter or another set of scatterers, by applying multilateration to the TDoA at the first scatterers, and applying the spatial consistency requirement. The process is iteratively repeated until the transmitter is identified. The multilateration may be linearized without sacrificing precision. In each iteration, a non-singularity requirement is applied to ensure that the selected scatterers produce unambiguous results.

    摘要翻译: 在选择的实施例中,发射机的地理位置的处理使用具有与发射机非视距(NLoS)的天线阵列的接收机。 使用基于来自第一散射体的到达时差(TDoA)的多边测量并且应用空间一致性要求来定位阵列的视线内的第一组散射体(LoS)。 也确定了第一散射体的发射/反射时间。 第一散射体的坐标和时序用于定位发射机或另一组散射体,通过在第一散射体处对TDoA应用多边形,并应用空间一致性要求。 迭代重复该过程,直到识别发射机。 多边形可以线性化而不牺牲精度。 在每次迭代中,应用非奇异性要求来确保选定的散射体产生明确的结果。

    Imager
    2.
    发明授权
    Imager 有权
    成像器

    公开(公告)号:US09253360B2

    公开(公告)日:2016-02-02

    申请号:US13543601

    申请日:2012-07-06

    摘要: Selected embodiments use a relatively small image detector and a scanning mirror to obtain effective performance of a larger image detector. An imager with folded optics captures images of different field positions of a field of view (FOV), and stitches the images together for a larger image of the FOV. The stitched image is processed to identify portions of interest within the larger image, for example, using a cuing algorithm. The portions of interest are scanned again to capture enhanced quality images using, for example, longer dwell time for enhanced contrast. Another image of the FOV or a part of the FOV is stitched together using the enhanced quality images.

    摘要翻译: 所选择的实施例使用相对小的图像检测器和扫描镜来获得较大图像检测器的有效性能。 具有折叠光学的成像器捕获视场(FOV)的不同场位置的图像,并且将图像拼接在一起以获得更大的FOV图像。 处理缝合图像以识别较大图像内的感兴趣部分,例如,使用切割算法。 再次扫描感兴趣的部分以捕获增强的质量图像,例如使用较长的驻留时间来增强对比度。 使用增强的质量图像将FOV或FOV的一部分的另一图像拼接在一起。

    Optical imaging with foveation
    3.
    发明授权
    Optical imaging with foveation 有权
    光学成像与移动

    公开(公告)号:US09071742B2

    公开(公告)日:2015-06-30

    申请号:US13543411

    申请日:2012-07-06

    摘要: Selected described embodiments include an imager providing concurrent wide field of view (WFOV) and foveated images. The imager includes a frontend optic configured to receive light from a scene. Corrective optics reduces distortions, and transmits the light to a beam splitter. One portion of the light exiting the beam splitter is focused on a WFOV image detector. A second portion of the light falls on a scanning mirror that can be configured to target a selected field position in the field of view. From the scanning mirror, the light passes through a magnifier and is corrected by an adaptive wavefront corrector. The corrector may be configured to correct aberrations corresponding to the particular field of view selected by the scanning mirror. The light from the wavefront corrector is focused on a foveated image detector. The images captured by the image detectors may be stored, processed, and transmitted to other systems.

    摘要翻译: 所选择的实施例包括提供同时宽视野(WFOV)和移动图像的成像器。 成像器包括配置成从场景接收光的前端光学器件。 校正光学器件减少失真,并将光线传输到分束器。 离开分束器的一部分光被聚焦在WFOV图像检测器上。 光的第二部分落在扫描反射镜上,扫描镜可被配置为在视野中瞄准选定的视场位置。 从扫描镜中,光通过放大镜并由自适应波前校正器校正。 校正器可以被配置为校正对应于由扫描镜选择的特定视场的像差。 来自波前校正器的光聚焦于移动图像检测器。 由图像检测器捕获的图像可以被存储,处理和传输到其它系统。

    COMPUTATIONAL IMAGING USING VARIABLE OPTICAL TRANSFER FUNCTION
    4.
    发明申请
    COMPUTATIONAL IMAGING USING VARIABLE OPTICAL TRANSFER FUNCTION 审中-公开
    使用可变光学转换功能的计算成像

    公开(公告)号:US20150109489A1

    公开(公告)日:2015-04-23

    申请号:US14585176

    申请日:2014-12-29

    申请人: ZIVA CORPORATION

    摘要: In selected embodiments, improved image restoration is realized using extensions of Wiener filtering combined with multiple image captures acquired after simple, fast reconfigurations of an optical imaging system. These reconfigurations may yield distinct OTF responses for each capture. The optical imaging system may reduce fabrication cost, power consumption, and/or system weight/volume by correcting significant optical aberrations. The system may be configured to perform independent correction of fields within the total field-of-regard. The system may also be configured to perform independent correction of different spectral bands.

    摘要翻译: 在所选择的实施例中,利用维纳滤波器的扩展结合了在光学成像系统的简单,快速重新配置之后获取的多个图像捕获来实现改进的图像恢复。 这些重新配置可能会为每个捕获产生不同的OTF响应。 光学成像系统可以通过校正显着的光学像差来降低制造成本,功耗和/或系统重量/体积。 系统可以被配置为在整个视野范围内对场进行独立校正。 该系统还可以被配置为执行不同光谱带的独立校正。

    Techniques and systems for providing data over power in communications based on time reversal
    5.
    发明授权
    Techniques and systems for providing data over power in communications based on time reversal 有权
    基于时间反转提供通信中的电力数据的技术和系统

    公开(公告)号:US08498658B2

    公开(公告)日:2013-07-30

    申请号:US13142250

    申请日:2010-09-03

    IPC分类号: H04B7/00 H04B15/00

    摘要: Techniques, apparatuses and systems for providing communications based on time reversal of a channel impulse response of a pulse in a transmission channel between a transmitter and a receiver to enhance reception and detection of a pulse at the receiver against various effects that can adversely affect and complicate the reception and detection of the pulse at the receiver.

    摘要翻译: 用于基于在发射机和接收机之间的传输信道中的脉冲的信道脉冲响应的时间反转来提供通信的技术,装置和系统,以增强在接收机处的接收和检测脉冲,以防止可能不利地影响和复杂的各种效应 在接收器处接收和检测脉冲。

    SYNCHRONIZATION OF DISTRIBUTED NODES
    6.
    发明申请
    SYNCHRONIZATION OF DISTRIBUTED NODES 有权
    分布式节点同步

    公开(公告)号:US20150085853A1

    公开(公告)日:2015-03-26

    申请号:US14476738

    申请日:2014-09-04

    IPC分类号: H04W56/00 H04B7/02

    摘要: Dynamic, untethered array nodes are frequency, phase, and time aligned/synchronized, and used to focus their transmissions of the same data coherently on a target or in the target's direction, using time reversal or directional beamforming. Information for alignment/synchronization may be sent from a master node of the array to other nodes, over non-RF links, such as optical and acoustic links. Some nodes may be connected directly to the master nodes, while other nodes may be connected to the master node through one or more transit nodes. A transit nodes may operate to (2) terminate the link when the alignment/synchronization information is intended for the node, and (2) pass through the alignment/synchronization information to another node without imposing its local clock properties on the passed through alignment/synchronization information. In this way, an end point node may be aligned/synchronized to the master node without a direct link between the two nodes.

    摘要翻译: 动态的,无阻塞的阵列节点是频率,相位和时间对齐/同步的,并且用于使用时间反转或定向波束成形将相同数据的传输聚焦在目标或目标的方向上。 用于对准/同步的信息可以通过诸如光学和声学连接的非RF链路从阵列的主节点发送到其他节点。 一些节点可以直接连接到主节点,而其他节点可以通过一个或多个传输节点连接到主节点。 传输节点可以操作以(2)当对准/同步信息用于节点时终止链路,以及(2)将对准/同步信息传递到另一个节点,而不对其进行对准/同步信息的本地时钟特性, 同步信息。 以这种方式,端点节点可以与主节点对准/同步,而没有两个节点之间的直接链路。

    DISTRIBUTED CO-OPERATING NODES USING TIME REVERSAL
    7.
    发明申请
    DISTRIBUTED CO-OPERATING NODES USING TIME REVERSAL 有权
    使用时间反转的分销合作伙伴

    公开(公告)号:US20140301494A1

    公开(公告)日:2014-10-09

    申请号:US14247229

    申请日:2014-04-07

    IPC分类号: H04W56/00 H04B7/02

    摘要: Dynamic, untethered array nodes are frequency, phase, and time aligned, and used to focus their transmissions of the same data coherently on a target, using time reversal. Alignment may be achieved separately for the radio frequency (RF) carriers and the data envelopes. Carrier alignment may be by phase conjugation. The data is distributed across the nodes. Data distribution and/or alignment may be performed by a Master node of the array. The nodes capture a sounding signal from the target, in the same time window. Each node converts the captured sounding signal to baseband, for example, using in-phase/quadrature downconversion. Each node stores the baseband samples of the sounding pulse. Each node convolves time-reversed samples of the sounding signal with the data, and upconverts the convolved data to radio frequency. The nodes emit their respective convolved and upconverted data so that the emissions focus coherently at the target.

    摘要翻译: 动态,无阻塞阵列节点是频率,相位和时间对齐,并用于使用时间反转将其相同数据的传输聚焦在目标上。 对于射频(RF)载波和数据信封可以分别实现对准。 载体对准可能是通过相位共轭。 数据分布在节点之间。 数据分布和/或对齐可以由阵列的主节点执行。 节点在同一时间窗口中捕获来自目标的探测信号。 每个节点将捕获的探测信号转换为基带,例如,使用同相/正交下变频。 每个节点存储探测脉冲的基带采样。 每个节点将探测信号的时间反转样本与数据进行卷积,并将卷积数据上变频到射频。 节点发射它们各自的卷积和上变频数据,使得排放物在目标上一致地聚焦。

    REDUCING SIGNAL DEGRADATION IN WIRELESS COMMUNICATIONS BASED ON TIME REVERSAL
    8.
    发明申请
    REDUCING SIGNAL DEGRADATION IN WIRELESS COMMUNICATIONS BASED ON TIME REVERSAL 有权
    基于时间反转降低无线通信信号降级

    公开(公告)号:US20130223503A1

    公开(公告)日:2013-08-29

    申请号:US13854863

    申请日:2013-04-01

    申请人: Ziva Corporation

    IPC分类号: H04L25/02

    CPC分类号: H04B7/24 H04L25/0212

    摘要: Techniques, apparatus and systems for providing radio frequency wireless communications based on time reversal of the channel impulse response of an RF pulse in a transmission channel between an RF transmitter and an RF receiver to enhance reception and detection of an RF pulse at the RF receiver against various effects that can adversely affect and complicate the reception and detection of the RF pulse at the RF receiver.

    摘要翻译: 基于在RF发射机和RF接收机之间的传输信道中的RF脉冲的信道脉冲响应的时间反转来提供射频无线通信的技术,装置和系统,以增强在RF接收机处的RF脉冲的接收和检测,以反对 可能会对RF接收机的RF脉冲的接收和检测产生不利影响和复杂化的各种效果。

    TECHNIQUES AND SYSTEMS FOR PROVIDING DATA OVER POWER IN COMMUNICATIONS BASED ON TIME REVERSAL
    9.
    发明申请
    TECHNIQUES AND SYSTEMS FOR PROVIDING DATA OVER POWER IN COMMUNICATIONS BASED ON TIME REVERSAL 有权
    基于时间反转提供通信数据的技术和系统

    公开(公告)号:US20120155515A1

    公开(公告)日:2012-06-21

    申请号:US13142250

    申请日:2010-09-03

    IPC分类号: H04W88/08

    摘要: Techniques, apparatuses and systems for providing communications based on time reversal of a channel impulse response of a pulse in a transmission channel between a transmitter and a receiver to enhance reception and detection of a pulse at the receiver against various effects that can adversely affect and complicate the reception and detection of the pulse at the receiver.

    摘要翻译: 用于基于在发射机和接收机之间的传输信道中的脉冲的信道脉冲响应的时间反转来提供通信的技术,装置和系统,以增强在接收机处的接收和检测脉冲,以防止可能不利地影响和复杂的各种效应 在接收器处接收和检测脉冲。

    TECHNIQUES AND SYSTEMS FOR COMMUNICATIONS BASED ON TIME REVERSAL PRE-CODING
    10.
    发明申请
    TECHNIQUES AND SYSTEMS FOR COMMUNICATIONS BASED ON TIME REVERSAL PRE-CODING 有权
    基于时间反向预编码的通信技术和系统

    公开(公告)号:US20110286508A1

    公开(公告)日:2011-11-24

    申请号:US13142236

    申请日:2010-09-03

    IPC分类号: H04B17/00

    摘要: Techniques, apparatuses and systems for providing communications based on time reversal of a channel impulse response of a pulse in a transmission channel between a transmitter and a receiver to enhance reception and detection of a pulse at the receiver against various effects that can adversely affect and complicate the reception and detection of the pulse at the receiver.

    摘要翻译: 用于基于在发射机和接收机之间的传输信道中的脉冲的信道脉冲响应的时间反转来提供通信的技术,装置和系统,以增强在接收机处的接收和检测脉冲,以防止可能不利地影响和复杂的各种效应 在接收器处接收和检测脉冲。