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公开(公告)号：EP3948339A1
公开(公告)日：2022-02-09
申请号：EP20777101.5
申请日：2020-03-25
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公开(公告)号：EP3405807A1
公开(公告)日：2018-11-28
申请号：EP17742108.8
申请日：2017-01-23
IPC分类号： G01S7/40
CPC分类号： G01S7/352 , G01S7/4021 , G01S13/931 , G01S2007/358 , G01S2007/406
摘要： A radar system is provided that includes a receive channel configured to receive a reflected signal and to generate a first digital intermediate frequency (IF) signal based on the reflected signal, a reference receive channel configured to receive a reflected signal and to generate a second digital IF signal based on the reflected signal, and digital mismatch compensation circuitry coupled to receive the first digital IF signal and the second digital IF signal, the digital mismatch compensation circuitry configured to process the first digital IF signal and the second digital IF signal to compensate for mismatches between the receive channel and the reference receive channel.
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公开(公告)号：EP3283900A1
公开(公告)日：2018-02-21
申请号：EP16780653.8
申请日：2016-04-13
发明人： SUBBURAJ, Karthik , RAMASUBRAMANIAN, Karthik , MURALI, Sriram , SAMALA, Sreekiran , DANDU, Krishnanshu
IPC分类号： G01S7/536
CPC分类号： G01S7/292 , G01S7/023 , G01S7/038 , G01S7/354 , G01S7/414 , G01S13/003 , G01S13/04 , G01S13/343 , G01S13/88 , G01S2007/356 , G01S2007/358
摘要： A noise-mitigated continuous-wave frequency-modulated radar includes, for example, a transmitter for generating a radar signal, a receiver for receiving a reflected radar signal and comprising a mixer for generating a baseband signal in response to the received radar signal and in response to a local oscillator (LO) signal, and a signal shifter coupled to at least one of the transmitter, LO input of the mixer in the receiver and the baseband signal generated by the mixer. The impact of amplitude noise or phase noise associated with interferers, namely, for example, strong reflections from nearby objects, and electromagnetic coupling from transmit antenna to receive antenna, on the detection of other surrounding objects is reduced by configuring the signal shifter in response to an interferer frequency and phase offset.
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公开(公告)号：EP3000182A1
公开(公告)日：2016-03-30
申请号：EP14801644.7
申请日：2014-05-22
CPC分类号： H04H60/58 , H04B1/1646 , H04H40/45 , H04H40/72 , H04H40/81
摘要： In an embodiment, a method of signal quality estimation and control includes generating a demodulated signal associated with a radio signal (802). A value is estimated of radio frequency signal-to-noise ratio (RFSNR) for the radio signal (806) based on information associated with a quality of the demodulated signal (804). Estimating the value of RFSNR facilitates in signal quality estimation of the radio signal and in control of the demodulated signal.
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6.发明公开INTERFERENCE DETECTION IN A FREQUENCY MODULATED CONTINUOUS WAVE (FMCW) RADAR SYSTEM 审中-公开频率调制连续波（FMCW）雷达干扰检测
公开(公告)号：EP3281030A1
公开(公告)日：2018-02-14
申请号：EP16777209.4
申请日：2016-04-06
发明人： MURALI, Sriram , BHARDWAJ, Sachin , RAMASUBRAMANIAN, Karthik , SUBBURAJ, Karthik , RAO, Sandeep , GINSBURG, Brian, Paul
IPC分类号： G01S13/00 , H04B17/345
CPC分类号： G01S7/352 , G01S7/023 , G01S7/40 , G01S13/32 , G01S13/931
摘要： A frequency modulated continuous wave (FMCW) radar system is provided that includes a receiver configured to generate a digital intermediate frequency (IF) signal, and an interference monitoring component coupled to the receiver to receive the digital IF signal, in which the interference monitoring component is configured to monitor at least one sub-band in the digital IF signal for interference, in which the at least one sub-band does not include a radar signal.
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