公开(公告)号：US20090096663A1

公开(公告)日：2009-04-16

申请号：US11462907

申请日：2006-08-07

申请人： Steven H. Thomas ,  Glen B. Backes ,  Timothy J. Reilly

发明人： Steven H. Thomas ,  Glen B. Backes ,  Timothy J. Reilly

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。

公开(公告)号：US07576683B2

公开(公告)日：2009-08-18

申请号：US11462907

申请日：2006-08-07

申请人： Steven H. Thomas ,  Glen B. Backes ,  Timothy J. Reilly

发明人： Steven H. Thomas ,  Glen B. Backes ,  Timothy J. Reilly

IPC分类号： G01S13/94 ,  G01S13/10 ,  G01S7/34 ,  G01S7/28

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。

公开(公告)号：US20070296510A1

公开(公告)日：2007-12-27

申请号：US11423573

申请日：2006-06-12

申请人： Glen B. Backes

发明人： Glen B. Backes

IPC分类号： H03L7/00

CPC分类号： H03L7/18

摘要： A method for controlling a frequency output of a phase locked loop (PLL) is provided. The method includes providing digital control words to the PLL to discretely change at least one dividing factor within the PLL. The method further includes applying a time-varying control voltage to a voltage controlled oscillator. The method still further includes applying an output of the voltage controlled oscillator to the PLL as a reference frequency. The method further includes outputting a signal from the PLL, the signal varied in frequency based on one or more of the time-varying control voltage and the at least one dividing factor.

摘要翻译： 提供了一种用于控制锁相环（PLL）的频率输出的方法。 该方法包括向PLL提供数字控制字以离散地改变PLL内的至少一个分频因子。 该方法还包括将时变控制电压施加到压控振荡器。 该方法还包括将压控振荡器的输出施加到PLL作为参考频率。 该方法还包括从PLL输出信号，该信号基于时变控制电压和至少一个分频因子中的一个或多个频率而变化。

公开(公告)号：US08044842B2

公开(公告)日：2011-10-25

申请号：US12489633

申请日：2009-06-23

申请人： Steven H. Thomas ,  Timothy J. Reilly ,  Glen B. Backes

发明人： Steven H. Thomas ,  Timothy J. Reilly ,  Glen B. Backes

IPC分类号： G01S13/08 ,  G01S7/40

CPC分类号： G01S7/4004 ,  G01S13/882

摘要： A method of compensating for component errors within a radar altimeter is described. The method includes periodically switching transmit pulses from a transmit antenna to a programmable delay device, calculating an altitude based on a transmit pulse received from the programmable delay device, comparing the calculated altitude to an expected altitude, the expected altitude based on a pre-set delay through the programmable delay device, and compensating an altitude measured by the radar altimeter, based on transmit pulses output through the transmit antenna, by an error correction amount based on a difference between the calculated altitude and expected altitudes.

摘要翻译： 描述了一种补偿雷达高度计内的部件误差的方法。 该方法包括周期性地将发射脉冲从发射天线切换到可编程延迟装置，基于从可编程延迟装置接收的发射脉冲计算高度，将所计算的高度与预期高度进行比较，基于预设的预期高度 延迟通过可编程延迟装置，并且基于通过发射天线输出的发射脉冲，通过基于计算的高度和预期高度之间的差异的误差校正量来补偿由雷达高度计测量的高度。

公开(公告)号：US20100267349A1

公开(公告)日：2010-10-21

申请号：US12426395

申请日：2009-04-20

申请人： Glen B. Backes

发明人： Glen B. Backes

IPC分类号： H04B1/44

CPC分类号： H04B1/48

摘要： A transmit/receive switching circuit is provided. The transmit/receive switching circuit comprises a first transformer to split a transmission signal into a first split transmission signal and a second split transmission signal. The first split transmission signal is out of phase with the second split transmission signal. The transmit/receive switching circuit also comprises a second transformer to split a received signal into a first split received signal and a second split received signal and to combine the first split transmission signal and the second split transmission signal. The first split received signal is out of phase with the second split received signal. The combined transmission signal is supplied to an antenna port and the received signal is received from the antenna port. The transmit/receive switching circuit also comprises a third transformer to combine the first split received signal and the second split received signal and to supply the combined received signal to a receive port of the transmit/receive switch. Finally, the transmit/receive switching circuit comprises first and second switches. Both the first and second switches are coupled to the first transformer and to the second transformer. The first switch switches between coupling the first split transmission signal to the second transformer and coupling the first split received signal to the third transformer. The second switch switches between coupling the second split transmission signal to the second transformer and coupling the second split received signal to the third transformer.

摘要翻译： 提供发送/接收切换电路。 发送/接收切换电路包括将发送信号分割为第一分离发送信号和第二分离发送信号的第一变压器。 第一分离传输信号与第二分离传输信号异相。 发送/接收切换电路还包括第二变压器，用于将接收到的信号分割为第一分割接收信号和第二分割接收信号，并组合第一分离传输信号和第二分离传输信号。 第一分割接收信号与第二分割接收信号异相。 组合的发送信号被提供给天线端口，并且从天线端口接收接收的信号。 发射/接收切换电路还包括第三变压器以组合第一分离接收信号和第二分割接收信号，并将组合的接收信号提供给发射/接收开关的接收端口。 最后，发射/接收切换电路包括第一和第二开关。 第一和第二开关都耦合到第一变压器和第二变压器。 第一开关在将第一分离传输信号耦合到第二变压器并将第一分离接收信号耦合到第三变压器之间切换。 第二开关在将第二分离传输信号耦合到第二变压器并将第二分离接收信号耦合到第三变压器之间切换。

公开(公告)号：US07697587B2

公开(公告)日：2010-04-13

申请号：US11923484

申请日：2007-10-24

申请人： Glen B. Backes ,  Rodney H. Thorland

发明人： Glen B. Backes ,  Rodney H. Thorland

IPC分类号： H01S3/083 ,  G01C19/64

CPC分类号： G01C19/66 ,  H01S3/0835 ,  H01S3/0975

摘要： Ring laser gyroscope that includes a gyroscope block, a radio frequency transmitting device, and a radio frequency energy source. The gyroscope block has at least one discharge bore containing a gain medium, and the radio frequency transmitting device is located within the gyroscope block in proximity to at least one discharge bore and located so as to encompass the discharge bore. The radio frequency energy source is configured to apply a pulsed radio frequency signal to the transmitting device.

摘要翻译： 环形激光陀螺仪，包括陀螺仪块，射频发射装置和射频能量源。 陀螺仪块具有至少一个包含增益介质的排出孔，并且射频发射装置位于陀螺仪块内靠近至少一个排出孔并且定位成包围排出孔。 射频能量源被配置为向发射装置施加脉冲射频信号。

公开(公告)号：US20090262008A1

公开(公告)日：2009-10-22

申请号：US12489633

申请日：2009-06-23

申请人： Steven H. Thomas ,  Timothy J. Reilly ,  Glen B. Backes

发明人： Steven H. Thomas ,  Timothy J. Reilly ,  Glen B. Backes

IPC分类号： G01S13/08

CPC分类号： G01S7/4004 ,  G01S13/882

摘要： A method of compensating for component errors within a radar altimeter is described. The method includes periodically switching transmit pulses from a transmit antenna to a programmable delay device, calculating an altitude based on a transmit pulse received from the programmable delay device, comparing the calculated altitude to an expected altitude, the expected altitude based on a pre-set delay through the programmable delay device, and compensating an altitude measured by the radar altimeter, based on transmit pulses output through the transmit antenna, by an error correction amount based on a difference between the calculated altitude and expected altitudes.

摘要翻译： 描述了一种补偿雷达高度计内的部件误差的方法。 该方法包括周期性地将发射脉冲从发射天线切换到可编程延迟装置，基于从可编程延迟装置接收的发射脉冲计算高度，将所计算的高度与预期高度进行比较，基于预设的预期高度 延迟通过可编程延迟装置，并且基于通过发射天线输出的发射脉冲，通过基于计算的高度和预期高度之间的差异的误差校正量来补偿由雷达高度计测量的高度。

公开(公告)号：US07522096B2

公开(公告)日：2009-04-21

申请号：US11697970

申请日：2007-04-09

申请人： Glen B. Backes ,  Timothy J. Reilly

发明人： Glen B. Backes ,  Timothy J. Reilly

IPC分类号： G01S7/40

CPC分类号： H01Q3/267 ,  G01S7/4017 ,  G01S13/9023 ,  G01S13/9035 ,  G01S2013/9064

摘要： A method for phase calibrating antennas in a radar system is disclosed. The method comprises providing a transmit antenna and two or more receive antennas, the receive antennas each in communication with a respective receiver channel. A radio frequency pulse having a leakage pulse is transmitted from the transmit antenna. The leakage pulse is received at each of the receive antennas and respective receiver channel. The relative phase change between the receive antennas is determined by using the leakage pulse as a reference signal.

摘要翻译： 公开了一种在雷达系统中相位校准天线的方法。 该方法包括提供发射天线和两个或更多个接收天线，每个接收天线各自与相应的接收机信道通信。 从发送天线发送具有泄漏脉冲的射频脉冲。 在每个接收天线和相应的接收机信道处接收泄漏脉冲。 通过使用泄漏脉冲作为参考信号来确定接收天线之间的相对相位变化。

公开(公告)号：US20090058716A1

公开(公告)日：2009-03-05

申请号：US11462909

申请日：2006-08-07

申请人： Steven H. Thomas ,  Glen B. Backes ,  Timothy J. Reilly

发明人： Steven H. Thomas ,  Glen B. Backes ,  Timothy J. Reilly

IPC分类号： G01S7/40

CPC分类号： G01S7/4052 ,  G01S13/882 ,  G01S2007/4065 ,  G01S2007/4069 ,  H03K5/13

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。

公开(公告)号：US08064847B2

公开(公告)日：2011-11-22

申请号：US12426395

申请日：2009-04-20

申请人： Glen B. Backes

发明人： Glen B. Backes

IPC分类号： H04B1/44

CPC分类号： H04B1/48

摘要： A transmit/receive switching circuit is provided. The transmit/receive switching circuit comprises a first transformer to split a transmission signal into a first split transmission signal and a second split transmission signal. The first split transmission signal is out of phase with the second split transmission signal. The transmit/receive switching circuit also comprises a second transformer to split a received signal into a first split received signal and a second split received signal and to combine the first split transmission signal and the second split transmission signal. The first split received signal is out of phase with the second split received signal. The combined transmission signal is supplied to an antenna port and the received signal is received from the antenna port. The transmit/receive switching circuit also comprises a third transformer to combine the first split received signal and the second split received signal and to supply the combined received signal to a receive port of the transmit/receive switch. Finally, the transmit/receive switching circuit comprises first and second switches. Both the first and second switches are coupled to the first transformer and to the second transformer. The first switch switches between coupling the first split transmission signal to the second transformer and coupling the first split received signal to the third transformer. The second switch switches between coupling the second split transmission signal to the second transformer and coupling the second split received signal to the third transformer.

摘要翻译： 提供发送/接收切换电路。 发送/接收切换电路包括将发送信号分割为第一分离发送信号和第二分离发送信号的第一变压器。 第一分离传输信号与第二分离传输信号异相。 发送/接收切换电路还包括第二变压器，用于将接收到的信号分割为第一分割接收信号和第二分割接收信号，并组合第一分离传输信号和第二分离传输信号。 第一分割接收信号与第二分割接收信号异相。 组合的发送信号被提供给天线端口，并且从天线端口接收接收的信号。 发射/接收切换电路还包括第三变压器以组合第一分离接收信号和第二分割接收信号，并将组合的接收信号提供给发射/接收开关的接收端口。 最后，发射/接收切换电路包括第一和第二开关。 第一和第二开关都耦合到第一变压器和第二变压器。 第一开关在将第一分离传输信号耦合到第二变压器并将第一分离接收信号耦合到第三变压器之间切换。 第二开关在将第二分离传输信号耦合到第二变压器并将第二分离接收信号耦合到第三变压器之间切换。