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公开(公告)号：US20160352507A1
公开(公告)日：2016-12-01
申请号：US15156333
申请日：2016-05-17
发明人： TADASHI MORITA , YUKIO OKAZAKI
CPC分类号： H04L7/06 , H04B7/0613 , H04L7/0016 , H04L27/34
摘要： A wireless communication apparatus includes multiple antenna devices, a signal generator, a phase shifter, a phase controller, and a quadrature error corrector (phase error corrector and amplitude error corrector). The signal generating circuitry, in operation, generates an IQ signal having an I signal and a Q signal. The plurality of phase shifting circuitry provided for each of the plurality of antenna devices, in operation, generates a plurality of combination signals by combining the I signal and the Q signal based on a predetermined combining scheme. The phase controlling circuitry, in operation, controls the predetermined combining scheme in each of the plurality of phase shifting circuitry. The quadrature error correcting circuitry, in operation, corrects at least one of amplitude combining scheme and phase combining scheme of the predetermined combining scheme in a correction of the predetermined combining scheme.
摘要翻译： 无线通信装置包括多个天线装置，信号发生器，移相器，相位控制器和正交误差校正器（相位误差校正器和振幅误差校正器）。 信号发生电路在工作时产生具有I信号和Q信号的IQ信号。 在操作中为多个天线装置中的每一个提供的多个相移电路通过基于预定的组合方案组合I信号和Q信号来产生多个组合信号。 相位控制电路在操作中控制多个相移电路中的每一个中的预定组合方案。 正交纠错电路在操作中，在预定组合方案的校正中校正预定组合方案的幅度组合方案和相位组合方案中的至少一个。
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公开(公告)号：US20150341203A1
公开(公告)日：2015-11-26
申请号：US14702235
申请日：2015-05-01
发明人： TADASHI MORITA , TAKAAKI KISHIGAMI , NAOYA YOSOKU
CPC分类号： H04L27/3863 , G01S7/282 , G01S7/288 , G01S7/2921 , G01S13/288 , G01S2007/2886 , H04J13/0014 , H04L27/205
摘要： A transmission system is provided with a pulse sequence generator that generates a pulse sequence including Golay code or Spano code, a π/2-BPSK modulator that applies π/2-BPSK modulation to the pulse sequence generated by the pulse sequence generator, and a phase rotator that provides phase rotation for every pulse for output of the π/2-BPSK modulator and a reception system is provided with a phase rotator that provides a phase opposite to a phase provided by the phase rotator of the transmission system and a correlator that performs correlation calculation for output of the phase rotator, based on the output of the π/2-BPSK modulator.
摘要翻译： 传输系统具有脉冲序列发生器，该脉冲序列发生器产生包括格雷码或Spano码的脉冲序列，对由脉冲序列发生器产生的脉冲序列应用＆amp; 2-BPSK调制的＆amp; 2-BPSK调制器， 以及相位旋转器，其为每个脉冲提供相位旋转以输出＆pgr / 2-BPSK调制器，并且接收系统设置有相位旋转器，其提供与由传输系统的相位旋转器提供的相位相反的相位， 基于＆pgr / 2-BPSK调制器的输出执行相位旋转器的输出的相关计算的相关器。
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3.发明申请公开(公告)号：US20170343661A1
公开(公告)日：2017-11-30
申请号：US15600437
申请日：2017-05-19
发明人： TADASHI MORITA , HIROSHI TANAKA
CPC分类号： G01S13/106 , G01S7/006 , G01S7/282 , G01S7/2921 , G01S7/4008 , G01S7/4021 , G01S13/284 , G01S13/288
摘要： A pulse radar includes pulse generation circuitry that generates a transmission pulse signal, radio frequency transmission circuitry that transmits a radio frequency signal obtained by performing a frequency conversion on the transmission pulse signal, radio frequency reception circuitry that converts a reflected-wave signal to a reception pulse signal, the reflected-wave signal being a part of the radio frequency signal reflected back from an object to be measured and received via a reception antenna, signal processing circuitry that calculates a distance between the object and the pulse radar, detection circuitry that detects a main pulse, and correction filter coefficient calculation circuitry that calculates an amount of delay and a phase difference of the one or more error pulses with reference to the main pulse to update a parameter of the correction filter circuitry. The correction filter circuitry updates a filter characteristic using the updated parameter.
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公开(公告)号：US20180267167A1
公开(公告)日：2018-09-20
申请号：US15905899
申请日：2018-02-27
发明人： TADASHI MORITA , MASAHIKO HASHIMOTO
IPC分类号： G01S15/04
CPC分类号： G01S15/04 , G01S7/53 , G01S7/534 , G01S7/536 , G01S15/325 , G01S15/50 , G01S15/931
摘要： A detection apparatus that includes correlation processing systems that each find a correlation between a predetermined code sequence and a wave detection signal obtained by detecting a phase-modulated input wave at a frequency different from a frequency used by a different one of the correlation processing systems, and thereby generate a correlation signal, level reduction processors that each receive the correlation signal from a corresponding one of the plurality of correlation processing systems and reduce a level of the received correlation signal when the correlation signal is not to be used for detection of the target or do not reduce the level of the received correlation signal when the correlation signal is to be used for detection of the target, and a detector that detects at least presence or absence of the target based on the correlation signal processed by each of the plurality of level reduction processors.
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公开(公告)号：US20180088231A1
公开(公告)日：2018-03-29
申请号：US15707459
申请日：2017-09-18
发明人： TADASHI MORITA , MASAHIKO HASHIMOTO
CPC分类号： G01S15/582 , G01S7/415 , G01S7/5276 , G01S7/539 , G01S13/04 , G01S13/325 , G01S13/584 , G01S15/04 , G01S15/104 , G01S15/325 , G01S15/52 , G01S15/931 , G01S2007/358 , G01S2013/9346 , G01S2013/9364 , G01S2013/9367
摘要： A detection device includes: a first correlation circuit that computes correlation of a first wave detection signal, which is a phase-modulated input wave detected at determined frequency, with a determined code sequence for every code composing the determined code sequence, and to generate first correlation signals the number of which corresponds to a code sequence length, which is a length of the determined code sequence; and a control circuit that rotates phases of the first correlation signals, generates an added value by adding the phase-rotated first correlation signals, and determines based on the added value whether the phase-modulated input wave is a return wave from a determined object.
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公开(公告)号：US20180074181A1
公开(公告)日：2018-03-15
申请号：US14846680
申请日：2015-09-04
CPC分类号： G01S13/284 , G01S7/282 , G01S7/288 , G01S13/0209 , G01S13/282 , G01S13/426 , G01S13/524 , G01S13/582 , G01S13/931 , G01S2007/2883 , G01S2007/2886
摘要： A radar device includes: a transmission beam controller that selects, every first period, a transmission beam set used for transmission of a radar signal from among a plurality of transmission beam sets each including at least two transmission beam directions; and a radar transmitter that transmits the radar signal in a predetermined transmission period by using the selected transmission beam set, wherein the transmission beam controller switching, every second period within the first period, among the at least two transmission beam directions included in the transmission beam set.
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