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公开(公告)号：US08509684B2
公开(公告)日：2013-08-13
申请号：US10584414
申请日：2004-12-20
申请人： Akio Funae , Koji Dai , Hideki Torizuka
发明人： Akio Funae , Koji Dai , Hideki Torizuka
IPC分类号： H04B7/14
摘要： A microwave frequency converter for a radar receiver is provided in which a frequency of a local oscillator of the microwave frequency converter can be prevented from interfering with an oscillation frequency of a magnetron included in the radar receiver and which can receive a signal from a considerably short distance. A voltage of an RF amplifier connected to the microwave frequency converter is synchronized with an oscillation output of the magnetron. The gate and drain voltages of a FET used in the RF amplifier are simultaneously switched OFF only during times before and after the magnetron performs oscillation, thereby switching an amplification function of the FET to an attenuation function thereof to increase a switching loss of the microwave frequency converter. Thereby, an excessively large power RF signal directly input from the magnetron and an excessively large power RF signal reflected from a short distance are attenuated to prevent the microwave frequency converter from being saturated, and the frequency of the local oscillator from interfering with the oscillation frequency of the magnetron.
摘要翻译： 提供了一种用于雷达接收机的微波频率转换器，其中可以防止微波频率转换器的本地振荡器的频率干扰雷达接收机中包括的磁控管的振荡频率，并且可以从相当短的时间内接收信号 距离。 连接到微波频率转换器的RF放大器的电压与磁控管的振荡输出同步。 RF放大器中使用的FET的栅极和漏极电压仅在磁控管执行振荡之前和之后的时间内同时切断，从而将FET的放大功能切换到其衰减函数，以增加微波频率的开关损耗 转换器。 因此，从磁控管直接输入的过大的功率RF信号和从短距离反射的过大的功率RF信号被衰减，以防止微波频率转换器饱和，并且本地振荡器的频率干扰振荡频率 的磁控管。
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公开(公告)号：US20080100503A1
公开(公告)日：2008-05-01
申请号：US11811725
申请日：2007-06-12
申请人： Katsuyuki Yanagi , Koji Dai , Sae Takemoto
发明人： Katsuyuki Yanagi , Koji Dai , Sae Takemoto
IPC分类号： G01S13/00
CPC分类号： G01S13/9307 , G01S7/064 , G01S7/12 , G01S7/22 , G01S13/103 , G01S13/106
摘要： A radar apparatus having an integral ARPA function transmits at least two kinds of pulse signals, each of which has different pulselength, according to a specific transmission pattern and receives echoes of the transmitted pulse signal. The radar apparatus includes an echo data generator for generating display echo data for each range scale selected for on-screen presentation by using an echo signal obtained with each transmission pulselength, an ARPA processor for generating a single set of motion-related information on each tracked target to be superimposed on the display echo data by using echo signals obtained with the different pulselengths, a display output synthesizer for superimposing the motion-related information on each tracked target generated by the ARPA processor on the display echo data, and a display unit for displaying a superimposed picture produced by the display output synthesizer.
摘要翻译： 具有整体ARPA功能的雷达装置根据特定的发送模式发送至少两种具有不同脉冲长度的脉冲信号，并接收所发送的脉冲信号的回波。 该雷达装置包括：回波数据发生器，用于通过使用每个传输脉冲长度获得的回波信号产生用于屏幕上呈现的每个范围标度的显示回波数据; ARPA处理器，用于在每个被跟踪的信号上产生一组运动相关信息 通过使用由不同脉冲长度获得的回波信号叠加在显示回波数据上的目标，显示输出合成器，用于将由ARPA处理器生成的每个跟踪目标上的运动相关信息叠加在显示回波数据上，显示单元， 显示由显示输出合成器产生的叠加图像。
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公开(公告)号：US08665135B2
公开(公告)日：2014-03-04
申请号：US12778834
申请日：2010-05-12
申请人： Koji Dai
发明人： Koji Dai
IPC分类号： G01S13/534 , G01S13/93
CPC分类号： G01S13/9307 , G01S7/062 , G01S7/22 , G01S7/2922 , G01S13/422 , G01S13/582
摘要： A radar device is disclosed, which includes an antenna for transmitting an electromagnetic wave and receiving an echo signal from a target object while rotating in a horizontal plane, a display module for displaying the target object so as to correspond the echo signal to a position of the target object with respect to the antenna, a speed calculation module for calculating a relative velocity of the antenna and the target object, and a risk level detection module for detecting a risk level of the target object based on the relative velocity of the target object calculated by the speed calculation module. The speed calculation module calculates the relative velocity of the target object based on a change in phases of at least two of the echo signals received at a different time. The display module controls a display mode of the target object based on the risk level.
摘要翻译： 公开了一种雷达装置，其包括用于在水平面旋转的同时传送电磁波并从目标物体接收回波信号的天线，用于显示目标物体的显示模块，以将回波信号对应于 相对于天线的目标对象，用于计算天线和目标对象的相对速度的速度计算模块，以及用于基于目标对象的相对速度来检测目标对象的风险等级的风险等级检测模块 由速度计算模块计算。 速度计算模块基于在不同时间接收的至少两个回波信号的相位变化来计算目标物体的相对速度。 显示模块基于风险等级来控制目标对象的显示模式。
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公开(公告)号：US07956798B2
公开(公告)日：2011-06-07
申请号：US11811725
申请日：2007-06-12
申请人： Katsuyuki Yanagi , Koji Dai , Sae Takemoto
发明人： Katsuyuki Yanagi , Koji Dai , Sae Takemoto
CPC分类号： G01S13/9307 , G01S7/064 , G01S7/12 , G01S7/22 , G01S13/103 , G01S13/106
摘要： A radar apparatus having an integral ARPA function transmits at least two kinds of pulse signals, each of which has different pulselength, according to a specific transmission pattern and receives echoes of the transmitted pulse signal. The radar apparatus includes an echo data generator for generating display echo data for each range scale selected for on-screen presentation by using an echo signal obtained with each transmission pulselength, an ARPA processor for generating a single set of motion-related information on each tracked target to be superimposed on the display echo data by using echo signals obtained with the different pulselengths, a display output synthesizer for superimposing the motion-related information on each tracked target generated by the ARPA processor on the display echo data, and a display unit for displaying a superimposed picture produced by the display output synthesizer.
摘要翻译： 具有整体ARPA功能的雷达装置根据特定的发送模式发送至少两种具有不同脉冲长度的脉冲信号，并接收所发送的脉冲信号的回波。 该雷达装置包括：回波数据发生器，用于通过使用每个传输脉冲长度获得的回波信号产生用于屏幕上呈现的每个范围标度的显示回波数据; ARPA处理器，用于在每个被跟踪的信号上产生一组运动相关信息 通过使用由不同脉冲长度获得的回波信号叠加在显示回波数据上的目标，显示输出合成器，用于将由ARPA处理器生成的每个跟踪目标上的运动相关信息叠加在显示回波数据上，显示单元， 显示由显示输出合成器产生的叠加图像。
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公开(公告)号：US20070252751A1
公开(公告)日：2007-11-01
申请号：US11789778
申请日：2007-04-25
申请人： Masahiro Nakahama , Sae Takemoto , Koji Dai
发明人： Masahiro Nakahama , Sae Takemoto , Koji Dai
IPC分类号： G01S13/42
CPC分类号： G01S13/106
摘要： A radar apparatus transmits a pulse signal including pulses having at least two different pulselengths in a specific transmit pulse pattern and receives a returning echo signal through a single antenna. A tuning voltage setting timing generator generates a timing of setting a tuning voltage according to a combination of transmission pulselengths and a tuning processor performs tuning operation in a manner suited to a current transmission pulselength based on the tuning voltage setting timing. The radar apparatus may include a tuning voltage alteration decider for deciding whether or not to alter the tuning voltage based on a combination of alternate pulselengths before altering the pulselength of the pulse signal generated by a transmitter and the tuning processor alters the tuning voltage based on the result of decision made by the tuning voltage alteration decider.
摘要翻译： 雷达装置在特定发射脉冲模式中发送包括具有至少两个不同脉冲长度的脉冲的脉冲信号，并通过单个天线接收返回的回波信号。 调谐电压设定定时发生器根据传输脉冲长度的组合生成设定调谐电压的定时，并且调谐处理器基于调谐电压设定定时以适合于当前传输脉冲长度的方式进行调谐操作。 调谐电压改变判定器，用于在改变由发射机产生的脉冲信号的脉冲长度之前，基于交替脉冲长度的组合来决定是否改变调谐电压，并且调谐处理器基于该调制电压改变调谐电压 由调谐电压变化决定决定的结果。
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公开(公告)号：US20070210954A1
公开(公告)日：2007-09-13
申请号：US10584414
申请日：2004-12-20
申请人： Akio Funae , Koji Dai , Hideki Torizuka
发明人： Akio Funae , Koji Dai , Hideki Torizuka
IPC分类号： G01S7/34
摘要： A microwave frequency converter for a radar receiver is provided in which a frequency of a local oscillator of the microwave frequency converter can be prevented from interfering with an oscillation frequency of a magnetron included in the radar receiver and which can receive a signal from a considerably short distance. A voltage of an RF amplifier connected to the microwave frequency converter is synchronized with an oscillation output of the magnetron. The gate and drain voltages of a FET used in the RF amplifier are simultaneously switched OFF only during times before and after the magnetron performs oscillation, thereby switching an amplification function of the FET to an attenuation function thereof to increase a switching loss of the microwave frequency converter. Thereby, an excessively large power RF signal directly input from the magnetron and an excessively large power RF signal reflected from a short distance are attenuated to prevent the microwave frequency converter from being saturated, and the frequency of the local oscillator from interfering with the oscillation frequency of the magnetron.
摘要翻译： 提供了一种用于雷达接收机的微波频率转换器，其中可以防止微波频率转换器的本地振荡器的频率干扰雷达接收机中包括的磁控管的振荡频率，并且可以从相当短的时间内接收信号 距离。 连接到微波频率转换器的RF放大器的电压与磁控管的振荡输出同步。 RF放大器中使用的FET的栅极和漏极电压仅在磁控管执行振荡之前和之后的时间内同时切断，从而将FET的放大功能切换到其衰减函数，以增加微波频率的开关损耗 转换器。 因此，从磁控管直接输入的过大的功率RF信号和从短距离反射的过大的功率RF信号被衰减，以防止微波频率转换器饱和，并且本地振荡器的频率干扰振荡频率 的磁控管。
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公开(公告)号：US20100289690A1
公开(公告)日：2010-11-18
申请号：US12778834
申请日：2010-05-12
申请人： Koji DAI
发明人： Koji DAI
CPC分类号： G01S13/9307 , G01S7/062 , G01S7/22 , G01S7/2922 , G01S13/422 , G01S13/582
摘要： A radar device is disclosed, which includes an antenna for transmitting an electromagnetic wave and receiving an echo signal from a target object while rotating in a horizontal plane, a display module for displaying the target object so as to correspond the echo signal to a position of the target object with respect to the antenna, a speed calculation module for calculating a relative velocity of the antenna and the target object, and a risk level detection module for detecting a risk level of the target object based on the relative velocity of the target object calculated by the speed calculation module. The speed calculation module calculates the relative velocity of the target object based on a change in phases of at least two of the echo signals received at a different time. The display module controls a display mode of the target object based on the risk level.
摘要翻译： 公开了一种雷达装置，其包括用于在水平面旋转的同时传送电磁波并从目标物体接收回波信号的天线，用于显示目标物体的显示模块，以将回波信号对应于 相对于天线的目标对象，用于计算天线和目标对象的相对速度的速度计算模块，以及用于基于目标对象的相对速度来检测目标对象的风险等级的风险等级检测模块 由速度计算模块计算。 速度计算模块基于在不同时间接收的至少两个回波信号的相位变化来计算目标物体的相对速度。 显示模块基于风险等级来控制目标对象的显示模式。
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公开(公告)号：US07746270B2
公开(公告)日：2010-06-29
申请号：US11789778
申请日：2007-04-25
申请人： Masahiro Nakahama , Sae Takemoto , Koji Dai
发明人： Masahiro Nakahama , Sae Takemoto , Koji Dai
CPC分类号： G01S13/106
摘要： A radar apparatus transmits a pulse signal including pulses having at least two different pulselengths in a specific transmit pulse pattern and receives a returning echo signal through a single antenna. A tuning voltage setting timing generator generates a timing of setting a tuning voltage according to a combination of transmission pulselengths and a tuning processor performs tuning operation in a manner suited to a current transmission pulselength based on the tuning voltage setting timing. The radar apparatus may include a tuning voltage alteration decider for deciding whether or not to alter the tuning voltage based on a combination of alternate pulselengths before altering the pulselength of the pulse signal generated by a transmitter and the tuning processor alters the tuning voltage based on the result of decision made by the tuning voltage alteration decider.
摘要翻译： 雷达装置在特定发射脉冲模式中发送包括具有至少两个不同脉冲长度的脉冲的脉冲信号，并通过单个天线接收返回的回波信号。 调谐电压设定定时发生器根据传输脉冲长度的组合生成设定调谐电压的定时，并且调谐处理器基于调谐电压设定定时以适合于当前传输脉冲长度的方式进行调谐操作。 调谐电压改变判定器，用于在改变由发射机产生的脉冲信号的脉冲长度之前，基于交替脉冲长度的组合来决定是否改变调谐电压，并且调谐处理器基于该调制电压改变调谐电压 由调谐电压变化决定决定的结果。
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公开(公告)号：US07583224B2
公开(公告)日：2009-09-01
申请号：US11808725
申请日：2007-06-12
申请人： Masahiro Nakahama , Yoshihiro Ishii , Katsuyuki Yanagi , Koji Dai
发明人： Masahiro Nakahama , Yoshihiro Ishii , Katsuyuki Yanagi , Koji Dai
摘要： The portion corresponding to a main bang signal leaking from a transmission/reception switching unit is extracted as a frequency estimation signal from an IF signal from a mixer in a signal extracting unit, a frequency is estimated in a frequency estimating unit, and the frequency of a local oscillation signal of a local oscillator is controlled so that the frequency of the IF signal is equal to a target value. The frequency estimation in the frequency estimating unit is carried out by using Discrete Fourier Transform or Fast Fourier Transform.
摘要翻译： 从发送/接收切换单元泄漏的主要爆炸信号对应的部分从信号提取单元中的混合器的IF信号中提取为频率估计信号，频率在频率估计单元中估计， 控制本地振荡器的本地振荡信号，使得IF信号的频率等于目标值。 频率估计单元中的频率估计通过使用离散傅里叶变换或快速傅里叶变换来执行。
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公开(公告)号：US20080122684A1
公开(公告)日：2008-05-29
申请号：US11808725
申请日：2007-06-12
申请人： Masahiro Nakahama , Yoshihiro Ishii , Katsuyuki Yanagi , Koji Dai
发明人： Masahiro Nakahama , Yoshihiro Ishii , Katsuyuki Yanagi , Koji Dai
IPC分类号： G01S13/00
摘要： The portion corresponding to a main bang signal leaking from a transmission/reception switching unit is extracted as a frequency estimation signal from an IF signal from a mixer in a signal extracting unit, a frequency is estimated in a frequency estimating unit, and the frequency of a local oscillation signal of a local oscillator is controlled so that the frequency of the IF signal is equal to a target value. The frequency estimation in the frequency estimating unit is carried out by using Discrete Fourier Transform or Fast Fourier Transform.
摘要翻译： 从发送/接收切换单元泄漏的主要爆炸信号对应的部分从信号提取单元中的混合器的IF信号中提取为频率估计信号，频率在频率估计单元中估计， 控制本地振荡器的本地振荡信号，使得IF信号的频率等于目标值。 频率估计单元中的频率估计通过使用离散傅里叶变换或快速傅里叶变换来执行。
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