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公开(公告)号：US4947176A
公开(公告)日：1990-08-07
申请号：US363490
申请日：1989-06-08
CPC分类号： G01S3/74 , G01S13/48 , H01Q21/0025 , H01Q25/00
摘要： A multiple-beam antenna system capable of forming a plurality of beams at one time in different directions. The antenna system has a plurality of element antennas arranged in a predetermined configuration. A signal received by each element antenna is converted to a digital signal which in turn is subjected to a Fourier transform. The Fourier-transformed receiving signal is multiplied with a Fourier-transformed weighting function. The resultant product is subjected to an inverse Fourier transform to be used for calculating an antenna radiation pattern. A holographic multiple-beam antenna is also disclosed.
摘要翻译： 能够在不同方向一次形成多个光束的多光束天线系统。 天线系统具有以预定配置布置的多个元件天线。 由每个元件天线接收的信号被转换成数字信号，数字信号又进行傅立叶变换。 傅立叶变换接收信号与傅里叶变换加权函数相乘。 对所得产物进行逆傅里叶变换，以用于计算天线辐射图。 还公开了全息多波束天线。
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2.发明申请公开(公告)号：US20070103354A1
公开(公告)日：2007-05-10
申请号：US10572964
申请日：2005-02-23
申请人： Shigeho Inatsune
发明人： Shigeho Inatsune
IPC分类号： H03M1/66
CPC分类号： G06G7/26 , G01S7/4008 , G01S13/345 , G06F1/0321 , H03M1/1038 , H03M1/66
摘要： It is possible to generate D/A conversion voltage in which an error generated by numeric irregularities of a D/A conversion element such as resistor constituting a D/A converter 11 is corrected. A waveform generation method characterized in that input data into a D/A converter 11 are provided to the D/A converter in order at a timing at which a voltage of a desired waveform which has D/A conversion data indicating a conversion amount of the input data obtained by varying the input data by a minimum conversion unit or a unit obtained by multiplying the minimum conversion unit by an integer, and which varies with time series, becomes substantially equal to a D/A-converted voltage, whereby the D/A-converted voltage is generated in accordance with the desired waveform.
摘要翻译： 可以产生D / A转换电压，其中由构成D / A转换器11的电阻器等D / A转换元件的数值不规则产生的误差被校正。 一种波形生成方法，其特征在于，在D / A转换器11的输入数据被按照具有D / A转换数据的期望波形的电压的时刻依次提供给D / A转换器11的时刻， 通过将最小转换单位或通过将最小转换单位乘以整数获得的随时间序列变化而获得的输入数据获得的输入数据变得基本上等于D / A转换电压，由此D / A转换电压根据所需波形产生。
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3.发明授权公开(公告)号：US07679549B2
公开(公告)日：2010-03-16
申请号：US12467686
申请日：2009-05-18
申请人： Shigeho Inatsune
发明人： Shigeho Inatsune
IPC分类号： G01S7/282
CPC分类号： G06G7/26 , G01S7/4008 , G01S13/345 , G06F1/0321 , H03M1/1038 , H03M1/66
摘要： It is possible to generate D/A conversion voltage in which an error generated by numeric irregularities of a D/A conversion element such as resistor constituting a D/A converter 11 is corrected. A waveform generation method characterized in that input data into a D/A converter 11 are provided to the D/A converter in order at a timing at which a voltage of a desired waveform which has D/A conversion data indicating a conversion amount of the input data obtained by varying the input data by a minimum conversion unit or a unit obtained by multiplying the minimum conversion unit by an integer, and which varies with time series, becomes substantially equal to a D/A-converted voltage, whereby the D/A-converted voltage is generated in accordance with the desired waveform.
摘要翻译： 可以产生D / A转换电压，其中由构成D / A转换器11的电阻器等D / A转换元件的数值不规则产生的误差被校正。 一种波形生成方法，其特征在于，在D / A转换器11的输入数据被按照具有D / A转换数据的期望波形的电压的时刻依次提供给D / A转换器11的时刻， 通过将最小转换单位或通过将最小转换单位乘以整数获得的随时间序列变化而获得的输入数据获得的输入数据变得基本上等于D / A转换电压，由此D / A转换电压根据所需波形产生。
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4.发明授权公开(公告)号：US07548195B2
公开(公告)日：2009-06-16
申请号：US10572964
申请日：2005-02-23
申请人： Shigeho Inatsune
发明人： Shigeho Inatsune
IPC分类号： G01S7/282
CPC分类号： G06G7/26 , G01S7/4008 , G01S13/345 , G06F1/0321 , H03M1/1038 , H03M1/66
摘要： It is possible to generate D/A conversion voltage in which an error generated by numeric irregularities of a D/A conversion element such as resistor constituting a D/A converter 11 is corrected. A waveform generation method characterized in that input data into a D/A converter 11 are provided to the D/A converter in order at a timing at which a voltage of a desired waveform which has D/A conversion data indicating a conversion amount of the input data obtained by varying the input data by a minimum conversion unit or a unit obtained by multiplying the minimum conversion unit by an integer, and which varies with time series, becomes substantially equal to a D/A-converted voltage, whereby the D/A-converted voltage is generated in accordance with the desired waveform.
摘要翻译： 可以产生D / A转换电压，其中由构成D / A转换器2的电阻器等D / A转换元件的数值不规则产生的误差被校正。 一种波形生成方法，其特征在于，在D / A转换器2的输入数据被按顺序被提供给D / A转换器，该定时是具有指示转换量的D / A转换数据的期望波形的电压 通过将最小转换单位或通过将最小转换单位乘以整数获得的随时间序列变化而获得的输入数据获得的输入数据变得基本上等于D / A转换电压，由此D / A转换电压根据所需波形产生。
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5.发明授权Waveform generation method, waveform generation program, waveform generation circuit and radar device 有权波形生成方法，波形生成程序，波形生成电路和雷达装置公开(公告)号：US07196658B2
公开(公告)日：2007-03-27
申请号：US10506991
申请日：2003-08-25
申请人： Shigeho Inatsune
发明人： Shigeho Inatsune
IPC分类号： G01S7/28
CPC分类号： G06F1/0321 , G01S7/4008 , H03L1/026 , H03M1/1038 , H03M1/66
摘要： A conventional waveform generation circuit was required to increase a number of bits or a sampling rate for a D/A converter to enhance a precision of waveform shaping, and had a problem that a cost was increased. Therefore, as a method for enhancing the precision of waveform shaping, a quantization error of an output waveform is made smaller by controlling an output time interval of an output value from a D/A converter so as to make a difference in an output voltage between target waveform and output waveform smaller. As a result, even if the D/A converter has a small number of bits, the waveform can be generated at high precision. Also, this waveform generation method may be applied to modulation control of a radar apparatus, as a result, constituting a small and inexpensive modulation circuit for an oscillator.
摘要翻译： 需要传统的波形生成电路来增加D / A转换器的位数或采样率，以提高波形整形的精度，并且存在成本增加的问题。 因此，作为提高波形整形精度的方法，通过控制来自D / A转换器的输出值的输出时间间隔，使输出波形的量化误差变小，从而使输出波形的输出电压 目标波形和输出波形较小。 结果，即使D / A转换器具有少量的位，也可以高精度地生成波形。 此外，该波形生成方法也可以应用于雷达装置的调制控制，结果构成了用于振荡器的小而廉价的调制电路。
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6.发明申请Waveform generation method, waveform generation program, waveform generation circuit and radar device 有权波形生成方法，波形生成程序，波形生成电路和雷达装置公开(公告)号：US20050165567A1
公开(公告)日：2005-07-28
申请号：US10506991
申请日：2003-08-25
申请人： Shigeho Inatsune
发明人： Shigeho Inatsune
CPC分类号： G06F1/0321 , G01S7/4008 , H03L1/026 , H03M1/1038 , H03M1/66
摘要： A conventional waveform generation circuit was required to increase a number of bits or a sampling rate for a D/A converter to enhance a precision of waveform shaping, and had a problem that a cost was increased. Therefore, as a method for enhancing the precision of waveform shaping, a quantization error of an output waveform is made smaller by controlling an output time interval of an output value from a D/A converter so as to make a difference in an output voltage between target waveform and output waveform smaller. As a result, even if the D/A converter has a small number of bits, the waveform can be generated at high precision. Also, this waveform generation method may be applied to modulation control of a radar apparatus, as a result, constituting a small and inexpensive modulation circuit for an oscillator.
摘要翻译： 需要传统的波形生成电路来增加D / A转换器的位数或采样率，以提高波形整形的精度，并且存在成本增加的问题。 因此，作为提高波形整形精度的方法，通过控制来自D / A转换器的输出值的输出时间间隔，使输出波形的量化误差变小，从而使输出波形的输出电压 目标波形和输出波形较小。 结果，即使D / A转换器具有少量的位，也可以高精度地生成波形。 此外，该波形生成方法也可以应用于雷达装置的调制控制，结果构成了用于振荡器的小而廉价的调制电路。
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