公开(公告)号：US20070064776A1

公开(公告)日：2007-03-22

申请号：US11520353

申请日：2006-09-13

申请人： Walter Feller ,  Patrick Fenton ,  Graham Purves

发明人： Walter Feller ,  Patrick Fenton ,  Graham Purves

IPC分类号： H04B1/00

CPC分类号： G01S19/22 ,  H04B1/7085

摘要： A receiver for position-determining ranging signals transmitted by earth-orbiting satellites uses a set of accumulators, each of which accumulates signal samples corresponding with a position along the rising edges of incoming PRN pulses. An MMT processor calculates the rising edges of the direct path component of the received signal, selects the accumulator whose content correspond to a reference value related to the pulse height of the direct path component and compares the timing of the samples in that accumulator with the timing of the reference value on a reference pulse.

摘要翻译： 用于由地球轨道卫星发射的位置确定测距信号的接收机使用一组累加器，每个累加器累积与沿着进入的PRN脉冲的上升沿的位置对应的信号样本。 MMT处理器计算接收信号的直接路径分量的上升沿，选择其内容对应于与直接路径分量的脉冲高度相关的参考值的累加器，并将该累加器中的采样的定时与定时 参考脉冲的参考值。

公开(公告)号：US08102325B2

公开(公告)日：2012-01-24

申请号：US12268241

申请日：2008-11-10

申请人： Walter Feller ,  Xiaoping Wen

发明人： Walter Feller ,  Xiaoping Wen

IPC分类号： H01Q9/28

CPC分类号： H01Q21/26 ,  H01Q1/42 ,  H01Q9/28

摘要： An antenna is provided for GNSS and other applications and includes an adjustable-height vertical support PCB mounted on a ground plane and mounting a crossed-dipole radiating arm element assembly. The gain pattern of the antenna can be varied by constructing the vertical support PCB with different heights or adjusting the height and gain pattern in the field. Vehicles with significant pitch and roll can be provided with low-horizon tracking capability by providing a high-profile antenna configuration. Alternatively, low-profile configurations provide steeper gain pattern rolloff at the horizon for maximal multipath rejection and high accuracy. The droop angles of the radiating arm elements are also adjustable for varying the gain pattern and beamwidth. A matching and phasing network is connected to the radiating arm elements and provides a relatively constant input impedance for the various antenna configurations. Alternative aspects of the invention have different configurations of the radiating arm elements and ground planes.

摘要翻译： 为GNSS和其他应用提供天线，并且包括安装在接地平面上的可调节高度垂直支撑PCB并安装交叉偶极辐射臂元件组件。 可以通过构造不同高度的垂直支撑PCB或调整现场的高度和增益模式来改变天线的增益模式。 通过提供高调的天线配置，具有显着俯仰和滚动的车辆可以提供低水平跟踪能力。 或者，低轮廓配置在水平线上提供更陡峭的增益模式滚降以实现最大的多路径抑制和高精度。 辐射臂元件的下垂角度也可调节以改变增益图案和波束宽度。 匹配和定相网络连接到辐射臂元件，并为各种天线配置提供相对恒定的输入阻抗。 本发明的替代方案具有不同的辐射臂元件和接地平面的构造。

公开(公告)号：US07400956B1

公开(公告)日：2008-07-15

申请号：US10804758

申请日：2004-03-19

申请人： Walter Feller ,  Michael L. Whitehead ,  John A. McClure

发明人： Walter Feller ,  Michael L. Whitehead ,  John A. McClure

IPC分类号： G01C21/28 ,  G01C21/00 ,  G05D1/00

CPC分类号： A01B69/008 ,  G01S19/14 ,  G01S19/53 ,  G05D1/027 ,  G05D1/0278 ,  G05D2201/0201

摘要： A sensor system for vehicle steering control comprising: a plurality of global navigation satellite sensor systems (GNSS) including receivers and antennas at a fixed spacing to determine a vehicle position, velocity and at least one of a heading angle, a pitch angle and a roll angle based on carrier phase corrected real time kinematic (RTK) position differences. The roll angle facilitates correction of the lateral motion induced position errors resultant from motion of the antennae as the vehicle moves based on an offset to ground and the roll angle. The system also includes a control system configured to receive the vehicle position, heading, and at least one of roll and pitch, and configured to generate a steering command to a vehicle steering system.

摘要翻译： 一种用于车辆转向控制的传感器系统，包括：多个全球导航卫星传感器系统（GNSS），其包括以固定间隔的接收器和天线，以确定车辆位置，速度以及行驶角，俯仰角和滚动中的至少一个 基于载波相位校正的实时运动（RTK）位置差异的角度。 滚动角度有助于校正当车辆基于对地面的偏移和侧倾角度而移动时由天线的运动产生的横向运动引起的位置误差。 该系统还包括被配置为接收车辆位置，航向以及滚动和俯仰中的至少一个的控制系统，并被配置为产生对车辆转向系统的转向命令。

公开(公告)号：US20100117914A1

公开(公告)日：2010-05-13

申请号：US12268241

申请日：2008-11-10

申请人： Walter Feller ,  Xiaoping Wen

发明人： Walter Feller ,  Xiaoping Wen

IPC分类号： H01Q1/50 ,  H01Q9/16 ,  H01Q3/00

CPC分类号： H01Q21/26 ,  H01Q1/42 ,  H01Q9/28

摘要： An antenna is provided for GNSS and other applications and includes an adjustable-height vertical support PCB mounted on a ground plane and mounting a crossed-dipole radiating arm element assembly. The gain pattern of the antenna can be varied by constructing the vertical support PCB with different heights or adjusting the height and gain pattern in the field. Vehicles with significant pitch and roll can be provided with low-horizon tracking capability by providing a high-profile antenna configuration. Alternatively, low-profile configurations provide steeper gain pattern rolloff at the horizon for maximal multipath rejection and high accuracy. The droop angles of the radiating arm elements are also adjustable for varying the gain pattern and beamwidth. A matching and phasing network is connected to the radiating arm elements and provides a relatively constant input impedance for the various antenna configurations. Alternative aspects of the invention have different configurations of the radiating arm elements and ground planes.

摘要翻译： 提供用于GNSS和其它应用的天线，并且包括安装在接地平面上的可调节高度垂直支撑PCB并安装交叉偶极辐射臂元件组件。 可以通过构造不同高度的垂直支撑PCB或调整现场的高度和增益模式来改变天线的增益模式。 通过提供高调的天线配置，具有显着俯仰和滚动的车辆可以提供低水平跟踪能力。 或者，低轮廓配置在水平线上提供更陡峭的增益模式滚降以实现最大的多路径抑制和高精度。 辐射臂元件的下垂角度也可调节以改变增益图案和波束宽度。 匹配和定相网络连接到辐射臂元件，并为各种天线配置提供相对恒定的输入阻抗。 本发明的替代方案具有不同的辐射臂元件和接地平面的构造。

公开(公告)号：US5200756A

公开(公告)日：1993-04-06

申请号：US695279

申请日：1991-05-03

申请人： Walter Feller

发明人： Walter Feller

IPC分类号： H01Q1/32 ,  H01Q9/04

CPC分类号： H01Q9/0471 ,  H01Q1/3275 ,  H01Q9/0428

摘要： An antenna assembly comprises a dome-like substrate with a ground plane layer on the interior surface of the substrate and a radiative patch on the outer surface of the substrate. The cavity defined by the substrate is closed off by a base having a conductive layer that is connected to the ground plane layer, thereby to isolate the cavity and circuit elements that may be disposed therein. Preferably the substrate has a polyhedral form and the radiative patch is a polygon having apex portions that extend down over the side surface of the substrate to enhance the sensitivity of the antenna at low elevations.

摘要翻译： 天线组件包括在基板的内表面上具有接地平面层的圆顶状基板和在基板的外表面上的辐射贴片。 由基板限定的空腔由具有连接到接地平面层的导电层的基底封闭，从而隔离可设置在其中的空腔和电路元件。 优选地，衬底具有多面体形状，并且辐射贴片是具有在衬底的侧表面上向下延伸的顶点部分的多边形，以增强天线在低仰角处的灵敏度。

公开(公告)号：US20070103273A1

公开(公告)日：2007-05-10

申请号：US11594291

申请日：2006-11-08

申请人： Walter Feller

发明人： Walter Feller

IPC分类号： H04Q5/22

CPC分类号： G01S13/758

摘要： A system for ascertaining the range from an interrogator to one or more transponders comprises an interrogator that transmits an RF carrier that is received by each transponder, the energy in the received carrier being used to charge up a storage capacitor in each senses the termination of the received carrier and initiates a known delay interval different from those of the other transponders. At the end of the delay interval, the transponder transmits an RF signal which is received by the interrogator. The interrogator then calculates the range to the transponder by subtracting the known delay interval from the round trip time registered in the timer.

摘要翻译： 用于确定从询问器到一个或多个转发器的范围的系统包括发送由每个应答器接收的RF载波的询问器，用于对每个应答器接收的存储电容器进行充电的接收载波中的能量感测到 接收载波并发起与其他应答器不同的已知延迟间隔。 在延迟时间结束时，应答器发送由询问器接收的RF信号。 询问器然后通过从记录在定时器中的往返时间减去已知的延迟间隔来计算应答器的范围。

公开(公告)号：US20050280577A1

公开(公告)日：2005-12-22

申请号：US10873806

申请日：2004-06-22

申请人： Walter Feller

发明人： Walter Feller

IPC分类号： G01S19/46 ,  G01S3/04 ,  G01S3/40 ,  G01S3/46 ,  G01S5/02 ,  G01S5/04 ,  G01S5/14

CPC分类号： G01S19/54 ,  G01S3/40

摘要： Apparatus and process for determining the position and heading or attitude of an antenna array are described based on radiating sources, preferably GNSS or other such satellite positioning systems. An optimum satellite is selected and the antenna array is “null steered” by combining the phase of the received signals to calculate a null or null angle that points toward the optimum satellite. The null will determine angle for elevation toward the optimum satellite and azimuth or heading. The heading is the azimuth of the (which may be actual or calculated) projection of the null vector to the satellite onto the Earth's surface. The actual location on Earth of the antenna array can be found and the antenna array azimuth with respect to the satellite can be determined. The null angle may be measured more precisely by dithering on either side to average out noise and then averaging the angle deviations to calculate the null angle. If the attitude of the antenna array with respect to the Earth's surface is desired, a null vector to a second satellite may be generated and the intersection of the two nulls will allow the attitude of the antenna array, with respect to one or both of the satellites, to be determined. The difference between the measured attitude of the antenna array with respect to the null vector and the calculated attitude of the satellite from the GNSS signals, is the attitude of the array with respect to the Earth's surface. All viewable satellites may be used, tracked, and nulls determined for each, and many antennas if in a known pattern relative to each other can be used to make the determinations more accurate and reliable.

摘要翻译： 基于辐射源（优选GNSS或其它这样的卫星定位系统）描述用于确定天线阵列的位置和航向或姿态的设备和过程。 通过组合接收信号的相位来计算指向最佳卫星的零或零角度，选择最佳卫星并且天线阵列是“空转向”。 空值将确定朝向最佳卫星和方位角或航向的仰角。 标题是空矢量对卫星到地球表面的方位（可能是实际的或计算的）。 可以找到天线阵列的地球上的实际位置，并且可以确定相对于卫星的天线阵列方位角。 可以通过任一侧的抖动来更精确地测量零点角度以平均噪声，然后对角度偏差进行平均以计算零点角度。 如果希望天线阵列相对于地球表面的姿态，则可以产生到第二卫星的零向量，并且两个零点的相交将允许天线阵列的姿态相对于一个或两个 卫星，待定。 天线阵列相对于零矢量的测量姿态与卫星与GNSS信号的计算姿态之间的差异是阵列相对于地球表面的姿态。 所有可见的卫星都可以被使用，跟踪和为每个确定的零点，并且如果以相对于彼此的已知模式可以使用许多天线来使得确定更准确和可靠。

公开(公告)号：US06469663B1

公开(公告)日：2002-10-22

申请号：US09695530

申请日：2000-10-24

申请人： Michael L. Whitehead ,  Walter Feller

发明人： Michael L. Whitehead ,  Walter Feller

IPC分类号： G01S502

CPC分类号： G01S19/51 ,  G01S19/44 ,  G01S19/46

摘要： A technique of accurately determining the relative position between two points using carrier phase information from receivers capable of making code and carrier phase measurements on signals transmitted from GPS satellites as well as signals transmitted from WAAS, EGNOS, MSAS or other Wide Area Augmentation System satellites (hereafter referred to simply as WAAS satellites). These signals are processed by a receiving system to determine relative position, for the purpose of surveying or otherwise, with the accuracy of carrier phase measurements being obtained. Signal processing similar to that used in existing GPS carrier phase based relative positioning receivers is used with WAAS signals as well. Benefits include faster and more reliable integer ambiguity resolution, protection from cycle slips and loss of sufficient satellites, and possibility of extending the operating range by allowing increased separation of reference and base receivers by incorporating ionospheric models provided by WAAS.

摘要翻译： 使用能够从GPS卫星发送的信号进行码和载波相位测量的接收机的载波相位信息以及从WAAS，EGNOS，MSAS或其他广域增强系统卫星发送的信号来精确地确定两点之间的相对位置的技术（ 以下简称WAAS卫星）。 这些信号由接收系统处理，以便为获得载波相位测量的准确性而进行测量或以其他方式确定相对位置。 与现有的基于GPS载波相位的相对定位接收机相似的信号处理也与WAAS信号一起使用。 优点包括更快更可靠的整数模糊度分辨率，防止周期滑落和丢失足够的卫星，以及通过引入WAAS提供的电离层模型，增加参考和基站接收机分离的可能性。