公开(公告)号：US20090323766A1

公开(公告)日：2009-12-31

申请号：US11308327

申请日：2006-03-16

申请人： Xinyu Wang ,  Marcus R Gahler ,  Igor Elgorriaga ,  Robert P. Higgins ,  Paul R. Norris

发明人： Xinyu Wang ,  Marcus R Gahler ,  Igor Elgorriaga ,  Robert P. Higgins ,  Paul R. Norris

IPC分类号： H04B1/00

CPC分类号： H04B1/7075 ,  H04B2201/70706

摘要： A spread-spectrum preamble synchronization peak detection system performs multiple statistical tests based on instant and time-averaged channel condition measurements to identify the synchronization peak. In a normalized peak-to-average test, a peak-to-average ratio measurement is normalized by a signal-to-noise ratio measurement to form a new statistical measure which effectively eliminates the impact of the wide dynamic range of the signal-to-noise ratio of the received samples. A transition SNR test is used to eliminate potential false alarms caused by spurious PARN peaks during the transition period at the onset of preamble arrival. Code-phase aligned time-averaging is used to estimate the signal and noise levels over a sliding window. The code-phase alignment of samples effectively separates signal and noise samples in the averaging process, and resulting in more accurate signal and noise measurements. In estimating noise levels, the system takes multi-path interference into account by excluding both the peak signal and the side-lobe signals caused by multi-path wireless channels, resulting in more accurate estimation of noise level.

摘要翻译： 扩展频谱前导码同步峰值检测系统基于即时和时间平均信道条件测量来执行多个统计测试以识别同步峰值。 在归一化的峰值对平均值测试中，通过信噪比测量对峰值平均比测量进行归一化，以形成新的统计测量，可有效地消除信号与宽度的宽动态范围的影响 - 接收样本的噪声比。 过渡SNR测试用于消除在前导码到达开始时的过渡期间由寄生PARN峰引起的潜在的假警报。 码相位对准时间平均用于估计滑动窗口上的信号和噪声水平。 样本的码相位对准在平均过程中有效地分离信号和噪声样本，并产生更准确的信号和噪声测量。 在估计噪声电平时，系统通过排除由多路径无线信道引起的峰值信号和旁瓣信号来考虑多径干扰，从而更准确地估计噪声电平。

公开(公告)号：US20090175258A1

公开(公告)日：2009-07-09

申请号：US11971429

申请日：2008-01-09

申请人： Xinyu Wang ,  Igor Elgorriaga ,  Marcus R. Gahler ,  Robert P. Higgins ,  Yefim Poberezhskiy ,  Paul R. Norris ,  Brian J. Hatley ,  Michael S. Foster

发明人： Xinyu Wang ,  Igor Elgorriaga ,  Marcus R. Gahler ,  Robert P. Higgins ,  Yefim Poberezhskiy ,  Paul R. Norris ,  Brian J. Hatley ,  Michael S. Foster

IPC分类号： H04J3/06 ,  H04B1/00

CPC分类号： H04J13/00 ,  H04J13/0022 ,  H04J13/10 ,  H04W56/003

摘要： Embodiments of the disclosure provide methods, apparatus, and articles allowing two nodes to communicate in a slot-based direct sequencing spreading communication system. Both a preamble sequence and a payload data spreading PN sequence are generated from the Time of Day and a given user code. Generated sequences are synchronized between two communicating nodes to allow slot-based DSSS communication to take place. Generated sequences also change dynamically from slot to slot to provide waveform security.

摘要翻译： 本公开的实施例提供允许两个节点在基于时隙的直接排序扩展通信系统中通信的方法，装置和文章。 前导序列和有效载荷数据扩展PN序列都是从时间和给定的用户代码生成的。 生成的序列在两个通信节点之间同步，以允许发生基于插槽的DSSS通信。 生成的序列也可以从时隙到时隙动态地改变，以提供波形安全性。

公开(公告)号：US08254362B2

公开(公告)日：2012-08-28

申请号：US11971429

申请日：2008-01-09

申请人： Xinyu Wang ,  Igor Elgorriaga ,  Marcus R. Gahler ,  Robert P. Higgins ,  Yefim Poberezhskiy ,  Paul R. Norris ,  Brian J. Hatley ,  Michael S. Foster

发明人： Xinyu Wang ,  Igor Elgorriaga ,  Marcus R. Gahler ,  Robert P. Higgins ,  Yefim Poberezhskiy ,  Paul R. Norris ,  Brian J. Hatley ,  Michael S. Foster

IPC分类号： H04J3/02

CPC分类号： H04J13/00 ,  H04J13/0022 ,  H04J13/10 ,  H04W56/003

摘要： Embodiments of the disclosure provide methods, apparatus, and articles allowing two nodes to communicate in a slot-based direct sequencing spreading communication system. Both a preamble sequence and a payload data spreading PN sequence are generated from the Time of Day and a given user code. Generated sequences are synchronized between two communicating nodes to allow slot-based DSSS communication to take place. Generated sequences also change dynamically from slot to slot to provide waveform security.

摘要翻译： 本公开的实施例提供允许两个节点在基于时隙的直接排序扩展通信系统中通信的方法，装置和文章。 前导序列和有效载荷数据扩展PN序列都是从时间和给定的用户代码生成的。 生成的序列在两个通信节点之间同步，以允许发生基于插槽的DSSS通信。 生成的序列也可以从时隙到时隙动态地改变，以提供波形安全性。

公开(公告)号：US07688878B2

公开(公告)日：2010-03-30

申请号：US11308327

申请日：2006-03-16

申请人： Xinyu Wang ,  Marcus R Gahler ,  Igor Elgorriaga ,  Robert P. Higgins ,  Paul R. Norris

发明人： Xinyu Wang ,  Marcus R Gahler ,  Igor Elgorriaga ,  Robert P. Higgins ,  Paul R. Norris

IPC分类号： H04B1/00

CPC分类号： H04B1/7075 ,  H04B2201/70706

摘要： A spread-spectrum preamble synchronization peak detection system performs multiple statistical tests based on instant and time-averaged channel condition measurements to identify the synchronization peak. In a normalized peak-to-average test, a peak-to-average ratio measurement is normalized by a signal-to-noise ratio measurement to form a new statistical measure which effectively eliminates the impact of the wide dynamic range of the signal-to-noise ratio of the received samples. A transition SNR test is used to eliminate potential false alarms caused by spurious PARN peaks during the transition period at the onset of preamble arrival. Code-phase aligned time-averaging is used to estimate the signal and noise levels over a sliding window. The code-phase alignment of samples effectively separates signal and noise samples in the averaging process, and resulting in more accurate signal and noise measurements. In estimating noise levels, the system takes multi-path interference into account by excluding both the peak signal and the side-lobe signals caused by multi-path wireless channels, resulting in more accurate estimation of noise level.

摘要翻译： 扩展频谱前导码同步峰值检测系统基于即时和时间平均信道条件测量来执行多个统计测试以识别同步峰值。 在归一化的峰值对平均值测试中，通过信噪比测量对峰值平均比测量进行归一化，以形成新的统计测量，可有效地消除信号与宽度的宽动态范围的影响 - 接收样本的噪声比。 过渡SNR测试用于消除在前导码到达开始时的过渡期间由寄生PARN峰引起的潜在的假警报。 码相位对准时间平均用于估计滑动窗口上的信号和噪声水平。 样本的码相位对准在平均过程中有效地分离信号和噪声样本，并产生更准确的信号和噪声测量。 在估计噪声电平时，系统通过排除由多路径无线信道引起的峰值信号和旁瓣信号来考虑多径干扰，从而更准确地估计噪声电平。

公开(公告)号：US08111734B2

公开(公告)日：2012-02-07

申请号：US12013542

申请日：2008-01-14

申请人： Xinyu Wang ,  Marcus Gahler ,  Robert P. Higgins ,  Paul R. Norris

发明人： Xinyu Wang ,  Marcus Gahler ,  Robert P. Higgins ,  Paul R. Norris

IPC分类号： H04B1/00

CPC分类号： H04B1/7085 ,  H04B1/7075 ,  H04B1/7093

摘要： A device for fast transition from preamble synchronization of a received baseband signal to demodulation of the received baseband signal may include a baseband chip tracking loop to generate an offset tracking value to track any initial chip phase offset and Doppler-caused baseband chip frequency drift associated with the received baseband signal. The device may also include a numerical controlled oscillator to correct any Doppler-caused phase rotation associated with the received signal. The device may additionally include a preamble synchronization unit to detect a preamble of the received baseband signal, and to measure a chip phase offset and a baseband Doppler frequency shift associated with the received baseband signal. The chip phase offset may be used to set an initial chip phase offset value of the chip tracking loop so that the chip tracking loop starts with approximately a zero pull-in error. The baseband Doppler frequency shift may be used to set initial frequency offset values in the chip tracking loop and the numerical controlled oscillator so that both start with substantially near-zero offset errors for substantially immediate demodulation of the received signal. The device may further include an output device to output the data demodulated from the received baseband signal.

摘要翻译： 用于从接收到的基带信号的前导码同步到接收的基带信号的解调的快速转换的装置可以包括基带芯片跟踪环路，用于产生偏移跟踪值，以跟踪任何初始码片相位偏移和与多普勒频带相关的多普勒引起的基带芯片频率漂移 接收的基带信号。 该装置还可以包括数字控制振荡器，以校正与接收信号相关联的任何多普勒引起的相位旋转。 该装置还可以包括前同步码单元，用于检测接收到的基带信号的前导码，并测量与接收的基带信号相关联的码片相位偏移和基带多普勒频移。 芯片相位偏移可用于设置芯片跟踪回路的初始芯片相位偏移值，使得芯片跟踪回路以大致零拉入误差开始。 基带多普勒频移可以用于设置芯片跟踪环路和数控振荡器中的初始频率偏移值，使得两者都从基本上接近零的偏移误差开始，以便基本上立即解调所接收的信号。 该设备还可以包括输出设备，用于输出从接收的基带信号解调的数据。

公开(公告)号：US20090180524A1

公开(公告)日：2009-07-16

申请号：US12013542

申请日：2008-01-14

申请人： Xinyu Wang ,  Marcus Gahler ,  Robert P. Higgins ,  Paul R. Norris

发明人： Xinyu Wang ,  Marcus Gahler ,  Robert P. Higgins ,  Paul R. Norris

IPC分类号： H04B1/707

CPC分类号： H04B1/7085 ,  H04B1/7075 ,  H04B1/7093

摘要： A device for fast transition from preamble synchronization of a received baseband signal to demodulation of the received baseband signal may include a baseband chip tracking loop to generate an offset tracking value to track any initial chip phase offset and Doppler-caused baseband chip frequency drift associated with the received baseband signal. The device may also include a numerical controlled oscillator to correct any Doppler-caused phase rotation associated with the received signal. The device may additionally include a preamble synchronization unit to detect a preamble of the received baseband signal, and to measure a chip phase offset and a baseband Doppler frequency shift associated with the received baseband signal. The chip phase offset may be used to set an initial chip phase offset value of the chip tracking loop so that the chip tracking loop starts with approximately a zero pull-in error. The baseband Doppler frequency shift may be used to set initial frequency offset values in the chip tracking loop and the numerical controlled oscillator so that both start with substantially near-zero offset errors for substantially immediate demodulation of the received signal. The device may further include an output device to output the data demodulated from the received baseband signal.

摘要翻译： 用于从接收到的基带信号的前导码同步到接收的基带信号的解调的快速转换的装置可以包括基带芯片跟踪环路，用于产生偏移跟踪值，以跟踪任何初始的码片相位偏移和多普勒引起的基带芯片频率漂移 接收的基带信号。 该装置还可以包括数字控制振荡器，以校正与接收信号相关联的任何多普勒引起的相位旋转。 该装置还可以包括前同步码单元，用于检测接收到的基带信号的前导码，并测量与接收的基带信号相关联的码片相位偏移和基带多普勒频移。 芯片相位偏移可用于设置芯片跟踪回路的初始芯片相位偏移值，使得芯片跟踪回路以大致零拉入误差开始。 基带多普勒频移可以用于设置芯片跟踪环路和数控振荡器中的初始频率偏移值，使得两者都从基本上接近零的偏移误差开始，以便基本上立即解调所接收的信号。 该设备还可以包括输出设备，用于输出从接收的基带信号解调的数据。

公开(公告)号：US08646010B2

公开(公告)日：2014-02-04

申请号：US13176570

申请日：2011-07-05

申请人： Greg A. Bengeult ,  Jeffrey P. Harrang ,  William R. Richards ,  Michael G. Lynch ,  Michael De La Chapelle ,  Paulus J. Martens ,  Ronald S. Carson ,  Richard D. Williams, II ,  Daniel F. Miller ,  Geoffrey O. White ,  George Fitzsimmons ,  Russell Berkheimer ,  Robert P. Higgins ,  Arthur F. Morrison

发明人： Greg A. Bengeult ,  Jeffrey P. Harrang ,  William R. Richards ,  Michael G. Lynch ,  Michael De La Chapelle ,  Paulus J. Martens ,  Ronald S. Carson ,  Richard D. Williams, II ,  Daniel F. Miller ,  Geoffrey O. White ,  George Fitzsimmons ,  Russell Berkheimer ,  Robert P. Higgins ,  Arthur F. Morrison

IPC分类号： H04N7/18

CPC分类号： H04N7/173 ,  H04B7/18508 ,  H04N7/147 ,  H04N7/20 ,  H04N21/2146 ,  H04N21/2187 ,  H04N21/2543 ,  H04N21/4126 ,  H04N21/6143

摘要： A system for bi-directional data content transfer between a plurality of mobile platforms, such as aircraft or cruise ships, and a ground-based control segment. The system includes the ground-based control segment, a space segment and a mobile system disposed on each mobile platform. The ground-based control segment includes an antenna which is used to transmit encoded RF signals representative of data content to the space segment. The space segment includes a plurality of satellite transponders, with one of the transponders being designated by the ground-based control segment to transpond the encoded RF signals to the mobile system. The mobile system includes steerable receive and transmit antennas. The receive antenna receives the encoded RF signals from the satellite transponder, which are thereafter decoded, demodulated, D/A converted by a communications subsystem and transmitted to a server. The server filters off that data content not requested by any occupants on the mobile system. A local area network (LAN) receives the remaining data content and provides same to individual users on the mobile platform in accordance with previously submitted programming requests or data input by the users at access stations associated independently with each user. The transmit antenna is used to transmit data content from laptop computers, PDAs or other user electronic devices coupled to the access stations back to the designated satellite transponder. The satellite transponder then transponds the data back to the antenna of the ground-based control segment.

摘要翻译： 用于在诸如飞机或游轮之类的多个移动平台和基于地面的控制段之间进行双向数据内容传送的系统。 该系统包括设置在每个移动平台上的基于地面的控制段，空间段和移动系统。 基于地面的控制段包括用于将表示数据内容的编码RF信号发送到空间段的天线。 空间段包括多个卫星转发器，其中一个应答器由基于地面的控制段指定，以将编码的RF信号转发到移动系统。 移动系统包括可引导的接收和发射天线。 接收天线接收来自卫星转发器的经编码的RF信号，其随后由通信子系统进行解码，解调，D / A转换并发送到服务器。 服务器过滤掉移动系统上任何乘客未请求的数据内容。 局域网（LAN）接收剩余的数据内容，并根据先前提交的编程请求或与每个用户独立关联的接入站处的用户输入的数据向移动平台上的个别用户提供相同的数据。 发射天线用于将耦合到接入站的膝上型计算机，PDA或其他用户电子设备的数据内容传送回指定的卫星转发器。 然后，卫星转发器将数据转发回地面控制段的天线。

公开(公告)号：US20100235034A1

公开(公告)日：2010-09-16

申请号：US12404831

申请日：2009-03-16

申请人： Robert P. Higgins

发明人： Robert P. Higgins

IPC分类号： G05D1/00 ,  G06K9/00

CPC分类号： G05D1/0083 ,  G06F3/017 ,  G06K9/00355

摘要： A method, apparatus and computer program product are provided for recognizing a gesture in which one or more relationships are determined between a plurality of body parts and the gesture is then determined based upon these relationships. Each relationship may be determined by determining an angle associated with at least one joint, determining one or more states of a body part based upon the angle associated with at least one joint, and determining a probability of a body part being in each respective state. The gesture may thereafter be determined based upon the one or more states and the probability associated with each state of the body part. Directions may be provided, such as to an unmanned vehicle, based upon the gesture to, for example, control its taxiing and parking operations.

摘要翻译： 提供了一种方法，装置和计算机程序产品，用于识别在多个身体部位之间确定一个或多个关系的手势，然后基于这些关系确定手势。 可以通过确定与至少一个关节相关联的角度来确定每个关系，基于与至少一个关节相关联的角度确定身体部位的一个或多个状态，以及确定身体部位处于每个相应状态的概率。 此后可以基于一个或多个状态和与身体部位的每个状态相关联的概率来确定手势。 可以基于例如控制其滑行和停车操作的手势来向诸如无人驾驶车辆提供方向。

公开(公告)号：US20090125223A1

公开(公告)日：2009-05-14

申请号：US11396049

申请日：2006-03-31

申请人： Robert P. Higgins

发明人： Robert P. Higgins

IPC分类号： G01C21/00 ,  H04N7/18

CPC分类号： G06T7/246 ,  G06T2207/30181 ,  G06T2207/30252

摘要： A system and method for video navigation are disclosed. Motion analysis can be performed upon camera images to determine movement of a vehicle, and consequently present position of the vehicle. Feature points can be identified upon a video image. Movement of the feature points between video frames is indicative of movement of the vehicle. Video navigation can be used, for example, in those instances wherein GPS navigation is unavailable.

摘要翻译： 公开了一种用于视频导航的系统和方法。 可以在摄像机图像上执行运动分析，以确定车辆的运动，并因此显示车辆的位置。 特征点可以在视频图像上识别。 视频帧之间的特征点的移动指示车辆的移动。 视频导航可以用于例如在GPS导航不可用的情况下。

公开(公告)号：US06726152B2

公开(公告)日：2004-04-27

申请号：US10153270

申请日：2002-05-21

申请人： Robert P. Higgins

发明人： Robert P. Higgins

IPC分类号： B64G100

CPC分类号： H04B7/195 ,  B64G1/1007 ,  B64G1/1085 ,  B64G1/242 ,  H04B7/18513

摘要： Boeing achieves satellite diversity by having a large discrimination angle for a MEO constellation of communications satellites to limit interference in the Ku-band with GSO communications systems. Each satellite entering an exclusion zone over a GSO ground station terminates all transmissions to provide EPFD within acceptable limits. The Boeing MEO constellation preferably comprises 20 satellites, 5 in each orbit. The four orbits are inclined at about 57° with respect to the equator. Services include an Integrated Digital Service (IDS) and Backhaul Data Service (BDS) to accommodate the needs of different users.

摘要翻译： 波音公司通过对通信卫星的MEO星座具有较大的辨别角来实现卫星分集，以限制使用GSO通信系统的Ku波段的干扰。 通过GSO地面站进入禁区的每颗卫星终止所有传输，以将EPFD提供在可接受的限度内。 波音MEO星座优选地包括20个卫星，每个轨道中有5颗卫星。 四个轨道相对于赤道倾斜约57°。 服务包括综合数字服务（IDS）和回程数据服务（BDS），以适应不同用户的需求。