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公开(公告)号：US06897803B2
公开(公告)日：2005-05-24
申请号：US10459139
申请日：2003-06-11
申请人： James R. Hager , Larry D. Almsted , John H. Keuper
发明人： James R. Hager , Larry D. Almsted , John H. Keuper
CPC分类号： G01S13/94 , G01S7/2925 , G01S13/18 , G01S13/524 , G01S13/87 , G01S13/882
摘要： A method for incorporating a forward ranging feature into a radar altimeter is described. The method comprises positioning an antenna of the altimeter such that a side lobe of a radar signal radiates from the antenna in a forward direction and processing a radar return from the side lobe to determine a range to a forward object.
摘要翻译： 描述了将前向测距特征结合到雷达高度计中的方法。 该方法包括定位高度计的天线，使得雷达信号的旁瓣沿着向前方向从天线辐射并且处理来自旁瓣的雷达返回以确定到正向物体的范围。
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公开(公告)号：US06803878B2
公开(公告)日：2004-10-12
申请号：US10144877
申请日：2002-05-13
申请人： James R. Hager , James B. Oven , Jason I. Formo
发明人： James R. Hager , James B. Oven , Jason I. Formo
IPC分类号： G01S740
CPC分类号： G01S19/51 , G01S3/48 , G01S7/292 , G01S7/4004 , G01S13/18 , G01S13/42 , G01S13/70 , G01S13/86 , G01S13/882 , G01S13/94
摘要： A method for testing radar system performance is disclosed which utilizes radar data test points in a radar data file. The method includes interpolating GPS data from a flight test to provide a GPS data point for every radar data test point, generating body coordinate values for every point in a corresponding digital elevation map (DEM) file using the interpolated GPS data, and applying a bounding function around at least a portion of the body coordinate values generated from the DEM file at a given time. The method also includes determining which body coordinate value generated from the DEM file is closest a current GPS data point for the given time and comparing the determined body coordinate value to the radar data test points at the given time.
摘要翻译： 公开了一种在雷达数据文件中使用雷达数据测试点的雷达系统性能测试方法。 该方法包括内插来自飞行测试的GPS数据，为每个雷达数据测试点提供GPS数据点，使用内插GPS数据生成相应数字高程图（DEM）文件中每个点的身体坐标值，并应用边界 围绕在给定时间从DEM文件生成的身体坐标值的至少一部分。 该方法还包括确定在给定时间内从DEM文件生成的身体坐标值与当前GPS数据点最接近，并将确定的身体坐标值与给定时间的雷达数据测试点进行比较。
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公开(公告)号：US06744401B2
公开(公告)日：2004-06-01
申请号：US10144881
申请日：2002-05-13
IPC分类号： G01S740
CPC分类号： G01S13/86 , G01S3/48 , G01S7/292 , G01S7/4004 , G01S13/18 , G01S13/42 , G01S13/70 , G01S13/882 , G01S13/94
摘要： A method for testing a radar system utilizing flight test radar data is described. The method includes time synchronizing measured radar data with a GPS based time marker, storing at least a portion of the time synchronized radar data, storing the GPS data, processing the stored GPS data to correspond with a physical position of an antenna which received the radar data, providing a radar model, and comparing the processed radar model data to the stored radar data.
摘要翻译： 描述了利用飞行试验雷达数据测试雷达系统的方法。 该方法包括将测量的雷达数据与基于GPS的时间标记进行时间同步，存储时间同步雷达数据的至少一部分，存储GPS数据，处理存储的GPS数据以对应于接收雷达的天线的物理位置 数据，提供雷达模型，并将经处理的雷达模型数据与存储的雷达数据进行比较。
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14.发明授权Methods and apparatus for optimizing interferometric radar altimeter cross track accuracy 有权用于优化干涉雷达高度计交叉轨道精度的方法和装置公开(公告)号：US06731236B1
公开(公告)日：2004-05-04
申请号：US10459137
申请日：2003-06-11
申请人： James R. Hager , Larry D. Almsted , Lavell Jordan
发明人： James R. Hager , Larry D. Almsted , Lavell Jordan
IPC分类号： G01S740
CPC分类号： G01S7/4021 , G01S13/4454 , G01S13/882
摘要： An apparatus for calibrating a radar altimeter is described. The altimeter provides an angle to a target based on radar energy received at right, left, and ambiguous antennas. The apparatus comprises a turntable on which the radar is mounted, a turntable controller which controls positioning of the radar altimeter, a radar energy source receiving transmit signals from the radar altimeter, a reflector, and a calibration unit. The reflector reflects and collimates radar energy from the radar source towards the radar altimeter. The calibration unit receives an angle from the controller indicative of a position of the radar altimeter with respect to the collimated radar energy and a measured angle from the radar altimeter. The calibration unit calculates a correction based on differences between the angle received from the turntable and the measured angle received from the altimeter and provides the calibration correction to the altimeter.
摘要翻译： 描述了用于校准雷达高度计的装置。 高度计基于在右，左和不明确的天线处接收到的雷达能量提供与目标的角度。 该装置包括安装有雷达的转盘，控制雷达高度计的定位的转台控制器，接收来自雷达高度计的发射信号的雷达能量源，反射器和校准单元。 反射器将来自雷达源的雷达能量反射并准直到雷达高度计。 校准单元从控制器接收指示雷达高度计相对于准直雷达能量的位置的角度和来自雷达高度计的测量角度。 校准单元基于从转盘接收到的角度与从高度计接收的测量角度之间的差异来计算校正，并向高度计提供校准校正。
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公开(公告)号：US06204805B1
公开(公告)日：2001-03-20
申请号：US09020287
申请日：1998-02-06
申请人： James R. Hager
发明人： James R. Hager
IPC分类号： G01S1310
CPC分类号： G01S13/94 , G01S13/87 , G01S13/882
摘要： The apparatus has the capability to detect the distance between an aircraft and the ground and at the same time to the nearest point to the aircraft such as buildings or trees. The apparatus includes an altimeter, determining the nearest point, as well as a device for determining the distance to the second target.
摘要翻译： 该装置具有检测飞机与地面之间的距离的能力，同时可以与飞机的最近点（例如建筑物或树木）进行对比。 该装置包括高度计，确定最近点，以及用于确定到第二目标的距离的装置。
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公开(公告)号：US6025800A
公开(公告)日：2000-02-15
申请号：US165624
申请日：1998-10-02
申请人： James R. Hager
发明人： James R. Hager
IPC分类号： B64D45/00 , G01C5/00 , G01S3/48 , G01S7/292 , G01S13/18 , G01S13/42 , G01S13/524 , G01S13/70 , G01S13/88 , G01S13/90 , G01S13/94 , G08G5/00 , G01S3/02
CPC分类号： G01S7/292 , G01C5/005 , G01S13/524 , G01S13/18 , G01S13/42 , G01S13/70 , G01S13/882 , G01S13/94 , G01S3/48
摘要： Aircraft position determination system includes a transmitter to transmit a signal, and two receivers to receive the transmitted signal reflected from the terrain below the aircraft, and a phase comparison apparatus operating from the two receiver's inputs. A processor determines position based on the output from the phase comparison apparatus.
摘要翻译： 飞机位置确定系统包括用于发送信号的发射机和用于接收从飞机下方的地形反射的发射信号的两个接收机，以及从两个接收机的输入端操作的相位比较装置。 处理器基于相位比较装置的输出来确定位置。
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公开(公告)号：US4186712A
公开(公告)日：1980-02-05
申请号：US914727
申请日：1978-06-12
申请人： Arthur O. Fitzner , James R. Hager
发明人： Arthur O. Fitzner , James R. Hager
CPC分类号： H01T13/41 , F02B2075/025
摘要： The invention contemplates a capacitor-discharge ignition system which includes a particular low-resistance, low-inductance, wire-wound circuit element at the spark plug which is operative with the spark plug and with the rest of the ignition system to materially suppress RFI generated at the spark gap. In application to high-speed, high-power two-cycle engines, use of the invention does not adversely affect engine performance.
摘要翻译： 本发明考虑了一种电容器放电点火系统，其包括在火花塞处具有特定的低电阻，低电感，绕线电路元件，其与火花塞一起操作，并且与其余点火系统一起实质上抑制产生的RFI 在火花间隙。 在应用于高速，大功率两冲程发动机时，本发明的使用不会对发动机性能产生不利影响。
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公开(公告)号：US4088108A
公开(公告)日：1978-05-09
申请号：US650418
申请日：1976-01-19
申请人： James R. Hager
发明人： James R. Hager
CPC分类号： F02P1/086 , F02P15/10 , F02P9/002 , F02B2075/025 , F02B2075/1816
摘要： A four cylinder, two-cycle internal combustion engine for an outboard motor includes a pair of energy storage power capacitors. An engine driven alternator produces a generally sine wave output voltage having one-half cycle connected to charge one capacitor and the opposite half-cycle connected to charge the second capacitor by a suitable diode steering network. The output voltage frequency is greater than the firing frequency and a plurality of voltage cycles provide for charging of the capacitors to the desired level. A separate trigger capacitor is provided. The trigger capacitor is coupled to be charged from the main alternator through a low impedance network and additionally from the main capacitor charging circuit through a high impedance network which may also function as a safety circuit means. Each capacitor is recharged by a plurality of half-cycles and during such period of engine revolution the alternate capacitor is being finally charged and discharged. The safety circuit means provide for relatively minute or slow discharging of the capacitor means between cycles and thereby essentially fully discharge the capacitor means when the system is turned off and thus prevent maintaining of dangerously high voltages in the system at turn-off.
摘要翻译： 用于舷外马达的四缸双循环内燃机包括一对储能电力电容器。 发动机驱动的交流发电机产生大致正弦波输出电压，其具有连续的一半周期以对一个电容器充电，并且相反的半周期连接以通过合适的二极管转向网络对第二电容器充电。 输出电压频率大于触发频率，并且多个电压周期提供电容器的充电到期望的电平。 提供单独的触发电容器。 触发电容器被耦合以从主交流发电机通过低阻抗网络充电，并且另外通过还可以用作安全电路装置的高阻抗网络从主电容器充电电路充电。 每个电容器由多个半周期再充电，并且在发动机转速的这段时间期间，交流电容器最终被充电和放电。 安全电路意味着在循环之间提供电容器装置的相对较小或缓慢的放电，从而当系统关闭时基本上完全放电电容器装置，从而防止系统在关断时保持危险的高电压。
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公开(公告)号：US07138940B2
公开(公告)日：2006-11-21
申请号：US10896807
申请日：2004-07-22
IPC分类号： G01S7/40
CPC分类号： G01S7/40 , G01S13/882
摘要： A method for operating a radar altimeter to perform a zero altitude calibration is described. The method includes determining a difference between an altitude measured by the radar altimeter and a desired altitude indication and upon receiving a zero calibration command, subtracting the difference from an altitude output by the radar altimeter.
摘要翻译： 描述了用于操作雷达高度计以执行零高度校准的方法。 该方法包括确定由雷达高度计测量的高度与期望高度指示之间的差异，以及在接收到零校准命令时，从雷达高度计输出的高度减去差值。
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公开(公告)号：US07129830B2
公开(公告)日：2006-10-31
申请号：US10987595
申请日：2004-11-12
申请人： James R. Hager , Steven H. Thomas
发明人： James R. Hager , Steven H. Thomas
IPC分类号： G08B23/00
摘要： A security system is described which includes a base station, at least one calibration unit and at least one sensor module having at least one sensor therein. The calibration unit is configured to provide signals to the at least one sensor module. The signals contain data configured to at least partially enable each sensor module to determine its location within a coordinate system. Each sensor module is further configured to transmit module location data, module orientation data, and sensor status from each sensor to the base station.
摘要翻译： 描述了一种安全系统，其包括基站，至少一个校准单元和至少一个其中具有至少一个传感器的传感器模块。 校准单元被配置为向至少一个传感器模块提供信号。 信号包含被配置为至少部分地使每个传感器模块确定其在坐标系内的位置的数据。 每个传感器模块还被配置为将模块位置数据，模块定向数据和传感器状态从每个传感器传送到基站。
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