Methods and systems using relative sensing to locate targets
    1.
    发明授权
    Methods and systems using relative sensing to locate targets 失效
    使用相对感测定位目标的方法和系统

    公开(公告)号:US07453395B2

    公开(公告)日:2008-11-18

    申请号:US11343718

    申请日:2006-01-31

    IPC分类号: G01S5/14 G01C21/00

    摘要: A method for determining a position of a target is described that includes establishing a reference target position and a measuring location position and measuring a range to the target, an azimuth angle to the target, and an elevation angle to the target. The reference target position, the measuring location position, the measured range to the target, the azimuth angle to the target, and the elevation angle to the target are utilized to calculate a position of the target.

    摘要翻译: 描述了一种用于确定目标位置的方法,其包括建立参考目标位置和测量位置位置并测量到目标的距离,与目标的方位角以及与目标的仰角。 利用参考目标位置,测量位置位置,到目标的测量范围,到目标的方位角以及与目标的仰角的角度来计算目标的位置。

    Methods and systems for reducing interference caused by antenna leakage signals
    2.
    发明授权
    Methods and systems for reducing interference caused by antenna leakage signals 失效
    降低由天线泄漏信号引起的干扰的方法和系统

    公开(公告)号:US07576683B2

    公开(公告)日:2009-08-18

    申请号:US11462907

    申请日:2006-08-07

    CPC分类号: G01S7/34 G01S13/882

    摘要: In one aspect, a method of radar altimeter operation including a time dependent gain control is described. The method comprises triggering a Sensitivity Time Control (STC) gain control signal at a pulse repetition frequency (PRF) of a transmit pulse to attenuate interference from at least one of an antenna leakage signal and a signal reflected from equipment. The method also includes shaping the STC gain control signal from no attenuation at a first time, before a transmitter sends the transmit pulse, to a stable maximum attenuation at the time the transmitter sends the transmit pulse, to no attenuation at a second time, after the transmitter sends the transmit pulse. The method also includes matching a bandwidth of an intermediate frequency (IF) amplifier to the pulse width of a transmitted pulse.

    摘要翻译: 在一个方面,描述了包括时间相关增益控制的雷达高度计操作的方法。 该方法包括以发射脉冲的脉冲重复频率(PRF)触发灵敏度时间控制(STC)增益控制信号,以衰减来自天线泄漏信号和从设备反射的信号中的至少一个的干扰。 该方法还包括在发射机发送发射脉冲之前的第一时间将STC增益控制信号从发射机发送发送脉冲时的稳定的最大衰减变成在第二时间没有衰减的STC增益控制信号, 发送器发送发送脉冲。 该方法还包括将中频(IF)放大器的带宽与发送脉冲的脉冲宽度进行匹配。

    Methods and systems for providing air data parameters using mass flow and pressure sensors
    3.
    发明授权
    Methods and systems for providing air data parameters using mass flow and pressure sensors 有权
    使用质量流量和压力传感器提供空气数据参数的方法和系统

    公开(公告)号:US07363809B2

    公开(公告)日:2008-04-29

    申请号:US11295328

    申请日:2005-12-05

    IPC分类号: G01P13/00

    摘要: A system is described that is configured to determine a plurality of air data parameters for an air vehicle. The system includes a mass air flow sensor, a pressure sensor, and a controller. The mass air flow sensor is mounted to sense an air flow caused by movement of the air vehicle. The pressure sensor is mounted to sense a static pressure at the air vehicle. The controller is configured to receive signals from the mass air flow sensor and the pressure sensor and determine an air velocity and a static pressure using the received signals.

    摘要翻译: 描述了被配置为确定用于机动车辆的多个空气数据参数的系统。 该系统包括质量空气流量传感器,压力传感器和控制器。 质量空气流量传感器被安装以感测由空中交通工具的运动引起的气流。 安装压力传感器以感测空中车辆的静压力。 控制器被配置为从质量空气流量传感器和压力传感器接收信号,并使用接收的信号确定空气速度和静压力。

    Systems and methods for controlling a landing position of sensors deployed from an air vehicle
    4.
    发明授权
    Systems and methods for controlling a landing position of sensors deployed from an air vehicle 有权
    用于控制从机动车部署的传感器的着陆位置的系统和方法

    公开(公告)号:US07280917B2

    公开(公告)日:2007-10-09

    申请号:US10989879

    申请日:2004-11-16

    IPC分类号: G06F19/00 B64C9/00

    CPC分类号: G01C21/16 G01P13/025

    摘要: A sensing device is described that is configured to be launched from an air vehicle for deployment on the ground. The sensing device includes at least one sensor, an inertial measurement unit (IMU), at least one flight control surface, a flight control unit configured to control a position of the flight control surfaces, and a processing unit. The processing unit is coupled to the IMU and is configured to receive a desired trajectory from an external source and, upon launch of the sensing device, is further configured to determine an error between the desired trajectory and a current position as determined by the IMU. The processing unit is also configured to cause the flight control unit to adjust a position of the flight control surfaces to minimize the error.

    摘要翻译: 描述了一种被配置为从空中车辆发射以在地面上展开的感测装置。 感测装置包括至少一个传感器,惯性测量单元(IMU),至少一个飞行控制表面,配置成控制飞行控制表面的位置的飞行控制单元和处理单元。 处理单元耦合到IMU并且被配置为从外部源接收期望的轨迹,并且在启动感测装置时,还被配置为确定由IMU确定的期望轨迹和当前位置之间的误差。 处理单元还被配置为使飞行控制单元调整飞行控制表面的位置以使误差最小化。

    Methods and systems providing an adaptive threshold for a beam sharpened pulse radar
    5.
    发明授权
    Methods and systems providing an adaptive threshold for a beam sharpened pulse radar 失效
    为光束锐化脉冲雷达提供自适应阈值的方法和系统

    公开(公告)号:US07652615B2

    公开(公告)日:2010-01-26

    申请号:US11420574

    申请日:2006-05-26

    IPC分类号: G01S13/00

    摘要: A radar sensor is described that includes a radar transmitter, a radar receiver configured to receive reflected returns of signals output by the radar transmitter, and a signal processing unit configured to process signals received by the radar receiver. The signal processing unit includes a comparator, a first filter comprising an output coupled to a reference input of the comparator, and a second filter comprising an output coupled to a signal input of the comparator. The first and second filters are configured to receive a common input related to the reflected returns. The first filter is configured to have a time constant such that a rise time of the first filter output is faster than a rise time of the second filter output.

    摘要翻译: 描述了雷达传感器,其包括雷达发射器,被配置为接收由雷达发射器输出的信号的反射返回的雷达接收器,以及被配置为处理由雷达接收器接收的信号的信号处理单元。 信号处理单元包括比较器,第一滤波器,包括耦合到比较器的参考输入端的输出端,第二滤波器包括耦合到比较器的信号输入端的输出端。 第一和第二滤波器被配置为接收与反射的返回相关的公共输入。 第一滤波器被配置为具有时间常数,使得第一滤波器输出的上升时间比第二滤波器输出的上升时间快。

    METHODS AND SYSTEMS FOR REDUCING INTERFERENCE CAUSED BY ANTENNA LEAKAGE SIGNALS
    6.
    发明申请
    METHODS AND SYSTEMS FOR REDUCING INTERFERENCE CAUSED BY ANTENNA LEAKAGE SIGNALS 失效
    降低由天线泄漏信号引起的干扰的方法和系统

    公开(公告)号:US20090096663A1

    公开(公告)日:2009-04-16

    申请号:US11462907

    申请日:2006-08-07

    IPC分类号: G01S13/08 G01S13/12

    CPC分类号: G01S7/34 G01S13/882

    摘要: In one aspect, a method of radar altimeter operation including a time dependent gain control is described. The method comprises triggering a Sensitivity Time Control (STC) gain control signal at a pulse repetition frequency (PRF) of a transmit pulse to attenuate interference from at least one of an antenna leakage signal and a signal reflected from equipment. The method also includes shaping the STC gain control signal from no attenuation at a first time, before a transmitter sends the transmit pulse, to a stable maximum attenuation at the time the transmitter sends the transmit pulse, to no attenuation at a second time, after the transmitter sends the transmit pulse. The method also includes matching a bandwidth of an intermediate frequency (IF) amplifier to the pulse width of a transmitted pulse.

    摘要翻译: 在一个方面,描述了包括时间相关增益控制的雷达高度计操作的方法。 该方法包括以发射脉冲的脉冲重复频率(PRF)触发灵敏度时间控制(STC)增益控制信号,以衰减来自天线泄漏信号和从设备反射的信号中的至少一个的干扰。 该方法还包括在发射机发送发射脉冲之前的第一时间将STC增益控制信号从发射机发送发送脉冲时的稳定的最大衰减变成在第二时间没有衰减的STC增益控制信号, 发送器发送发送脉冲。 该方法还包括将中频(IF)放大器的带宽与发送脉冲的脉冲宽度进行匹配。

    Methods and systems for sensing air vehicle airspeed
    7.
    发明授权
    Methods and systems for sensing air vehicle airspeed 有权
    感应机动车空速的方法和系统

    公开(公告)号:US07185538B2

    公开(公告)日:2007-03-06

    申请号:US10987811

    申请日:2004-11-12

    IPC分类号: G01F15/08

    摘要: A system for determining airspeed of an air vehicle is described which includes and airflow sensor and a processor. The airflow sensor is located within an airflow path extending substantially through the air vehicle, and the processor is configured to receive a signal relating to an airflow rate from the airflow sensor and output an airspeed based on the received signal.

    摘要翻译: 描述了一种用于确定空中交通工具的空速的系统,其包括气流传感器和处理器。 气流传感器位于基本上延伸穿过空气车辆的气流通道内,并且处理器被配置为接收与来自气流传感器的气流速率相关的信号,并基于接收到的信号输出空速。

    Precision radio frequency delay device
    8.
    发明授权
    Precision radio frequency delay device 失效
    精密射频延迟装置

    公开(公告)号:US07548188B2

    公开(公告)日:2009-06-16

    申请号:US11462909

    申请日:2006-08-07

    IPC分类号: G01S7/02 H03H11/26 G01S7/40

    摘要: A method of delaying propagation of a radio frequency (RF) signal through a circuit is described. The method comprises receiving data that represents a delay time interval, providing an RF signal when a start pulse triggers a memory device, initiating a count through the delay time interval based on receipt of a start pulse, and outputting the RF signal after the delay time interval has expired.

    摘要翻译: 描述了通过电路延迟射频(RF)信号的传播的方法。 该方法包括接收表示延迟时间间隔的数据,当起始脉冲触发存储器件时提供RF信号,基于接收到起始脉冲启动延迟时间间隔的计数,并在延迟时间之后输出RF信号 间隔已过期。

    Systems and methods for locating targets using digital elevation model survey points
    9.
    发明申请
    Systems and methods for locating targets using digital elevation model survey points 审中-公开
    使用数字高程模型测量点定位目标的系统和方法

    公开(公告)号:US20080129599A1

    公开(公告)日:2008-06-05

    申请号:US11294865

    申请日:2005-12-05

    IPC分类号: G01S3/02

    CPC分类号: G01S19/51 G01S7/497 G01S19/45

    摘要: A method for determining the position of a target using digital terrain elevation data survey points and a corresponding target locating system are described. The method includes selecting at least two surveyed reference points from the digital terrain elevation data, determining a location of the target locator with respect to the digital terrain elevation data, and referencing the location of the target to the digital terrain elevation data. The method further includes measuring a position of the target locator, and translating a difference between the determined location and the measured position of the target locator to the referenced location of the target.

    摘要翻译: 描述了使用数字地形高程数据测量点和相应的目标定位系统来确定目标位置的方法。 该方法包括从数字地形高程数据中选择至少两个经测量的参考点,确定目标定位器相对于数字地形高程数据的位置,以及将目标位置引用到数字地形高程数据。 该方法还包括测量目标定位器的位置,以及将所确定的位置与目标定位器的测量位置之间的差异转换到目标的参考位置。

    Methods and systems utilizing Doppler prediction to enable fusing
    10.
    发明授权
    Methods and systems utilizing Doppler prediction to enable fusing 失效
    利用多普勒预测来实现融合的方法和系统

    公开(公告)号:US07352319B2

    公开(公告)日:2008-04-01

    申请号:US11330027

    申请日:2006-01-11

    IPC分类号: G01S13/88 F42C13/04

    摘要: A method for controlling a detonation altitude of a radar equipped munition is described. The method includes calculating a velocity of the munition while the munition is at an altitude greater than the desired detonation altitude, determining when the munition is at a reference altitude, and calculating a time representing when the vehicle will reach the desired detonation altitude based on the calculated velocity and determined reference altitude. The method also includes generating a fusing signal to detonate the munition after the calculated time has passed.

    摘要翻译: 描述了一种用于控制装备有雷达的弹药的爆震高度的方法。 该方法包括计算弹药的速度,同时弹药的高度大于所需的引爆高度,确定弹药何时在参考高度,以及计算代表车辆何时达到所需爆震高度的时间 计算速度和确定的参考高度。 该方法还包括在经过计算的时间之后产生熔断信号以引爆弹药。