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1.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
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。
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公开(公告)号：US07548188B2
公开(公告)日：2009-06-16
申请号：US11462909
申请日：2006-08-07
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。
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3.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。
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公开(公告)号：US20090174594A1
公开(公告)日：2009-07-09
申请号：US12401639
申请日：2009-03-11
CPC分类号： G01C5/005 , G01S13/18 , G01S13/882
摘要： In one aspect, a method of radar altimeter operation, the altimeter including a high frequency counter coupled to a processor is described. The method comprises providing a continuous wave to the high frequency counter upon receipt of a transmit pulse, counting the cycles of the continuous wave, discontinuing counting of the continuous wave cycles upon receipt of a return pulse, outputting a count from the high frequency counter to the processor, and operating the processor to convert the count to an altitude.
摘要翻译： 在一个方面，描述了一种雷达高度计操作的方法，该高度计包括耦合到处理器的高频计数器。 该方法包括在接收到发射脉冲时向高频计数器提供连续波，对连续波的周期进行计数，在接收到返回脉冲时中断连续波周期的计数，从高频计数器输出计数到 处理器，并操作处理器将计数转换为高度。
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公开(公告)号：US20080246649A1
公开(公告)日：2008-10-09
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。
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公开(公告)号：US08044842B2
公开(公告)日：2011-10-25
申请号：US12489633
申请日：2009-06-23
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。
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公开(公告)号：US20090262008A1
公开(公告)日：2009-10-22
申请号：US12489633
申请日：2009-06-23
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。
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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。
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公开(公告)号：US20090058716A1
公开(公告)日：2009-03-05
申请号：US11462909
申请日：2006-08-07
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。
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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。
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