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1.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
CPC分类号： G01S13/882 , F42C13/042 , G01S13/60
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。
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2.发明申请METHODS AND SYSTEMS PROVIDING AN ADAPTIVE THRESHOLD FOR A BEAM SHARPENED PULSE RADAR 失效为光束闪烁脉冲雷达提供自适应阈值的方法和系统公开(公告)号：US20070273572A1
公开(公告)日：2007-11-29
申请号：US11420574
申请日：2006-05-26
IPC分类号： G01S13/08
CPC分类号： G01S13/882 , F42C13/042 , G01S13/60
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。
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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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4.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：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：US20080122677A1
公开(公告)日：2008-05-29
申请号：US12025907
申请日：2008-02-05
IPC分类号： F42C13/04
CPC分类号： G01S13/64 , F42C13/042 , G01S13/882
摘要： A radar processor for controlling detonation of a munition and operable to receive a detonation altitude from an external source is provided. The radar processor is configured to set a first range gate and a reference range gate based on the received detonation altitude, and cause a radar transmitter to operate in a continuous wave mode, for a predetermined period, upon receipt of radar return signals through the first range gate. The radar processor calculates a velocity of the munition from continuous wave return signals, and calculates a time delay for outputting a detonation signal based on the received detonation altitude, the calculated velocity, and a reference altitude of the munition, the altitude of the munition calculated based upon receipt of radar return signals through the reference range gate. The radar transmitter operates in a pulse mode while the munition is outside the reference range gate.
摘要翻译： 提供了一种用于控制弹药爆炸并可操作以从外部源接收爆震高度的雷达处理器。 雷达处理器被配置为基于接收到的引爆高度来设置第一范围门和参考范围门，并且在接收到通过第一个的雷达返回信号的雷达返回信号时，使雷达发射机以连续波模式操作预定的时间段 范围门 雷达处理器从连续波返回信号计算出弹药的速度，并根据接收到的爆震高度，计算的速度和弹药的参考高度，计算出的弹药的高度计算输出爆震信号的时间延迟 基于通过参考范围门接收到雷达返回信号。 当弹药在参考范围门外时，雷达发射器以脉冲模式工作。
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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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公开(公告)号：US07352319B2
公开(公告)日：2008-04-01
申请号：US11330027
申请日：2006-01-11
CPC分类号： G01S13/64 , F42C13/042 , G01S13/882
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。
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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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