-
公开(公告)号：US10215842B2
公开(公告)日：2019-02-26
申请号：US15004752
申请日：2016-01-22
申请人： Navico Holding AS
发明人： Roger Phillips , Graeme Bell , Gregor Storz , Lindsay Lilburn
摘要： Various implementations described herein are directed to frequency correction for pulse compression radar. In one implementation, a method may include generating a first transmission signal using a pulse compression radar system based on an ideal waveform signal. The method may also include measuring a frequency of the first transmission signal at an output of a transmitter module. The method may further include comparing the measured frequency of the first transmission signal and a frequency of the ideal waveform signal. The method may additionally include generating pre-distortion coefficients based on the comparison, where the pre-distortion coefficients are configured to compensate for a difference between the measured frequency of the first transmission signal and the frequency of the ideal waveform signal. In addition, the method may include generating a compensated transmission signal using the pulse compression radar system based on the pre-distortion coefficients and the ideal waveform signal.
-
公开(公告)号：US20170102452A1
公开(公告)日：2017-04-13
申请号：US14463448
申请日：2014-08-19
申请人： Navico Holding AS
发明人： Lindsay Lilburn , Roger Phillips
IPC分类号： G01S7/32
CPC分类号： G01S7/32 , G01S13/28 , G01S13/284
摘要： A system, apparatus, and method for receiving a signal. In one implementation, the system includes a receiver, a correlator, and a range sidelobe envelope generator. The receiver receives the signal. The correlator compresses the signal with a reference signal. The range sidelobe envelope generator generates a range sidelobe envelope function based on the compressed signal.
-
公开(公告)号：US20160216368A1
公开(公告)日：2016-07-28
申请号：US15004764
申请日：2016-01-22
申请人： Navico Holding AS
CPC分类号： G01S7/4008 , G01S7/282 , G01S7/2921 , G01S13/28 , G01S13/9307 , G01S13/956 , G01S2007/4013 , Y02A90/18
摘要： Various implementations described herein are directed to adaptive frequency correction for pulse compression radar. In one implementation, a method may include generating a first transmission signal using a first direct digital synthesizer of a pulse compression radar system based on frequency sweep coefficients. The method may also include comparing a frequency of the first transmission signal at a feedback loop of a phase locked loop circuit and a frequency of an ideal waveform signal. The method may further include generating adaptive frequency coefficients based on the comparison, where the adaptive frequency coefficients are configured to compensate for a difference between the frequency of the first transmission signal at the feedback loop and the frequency of the ideal waveform signal. The method may additionally include generating a compensated transmission signal using the pulse compression radar system based on the adaptive frequency coefficients and the frequency sweep coefficients.
摘要翻译： 本文描述的各种实施方式涉及用于脉冲压缩雷达的自适应频率校正。 在一个实现中，方法可以包括使用基于频率扫描系数的脉冲压缩雷达系统的第一直接数字合成器来产生第一传输信号。 该方法还可以包括将锁相环电路的反馈环路上的第一发送信号的频率与理想波形信号的频率进行比较。 该方法还可以包括基于该比较生成自适应频率系数，其中自适应频率系数被配置为补偿反馈回路上的第一传输信号的频率与理想波形信号的频率之间的差异。 该方法可以另外包括基于自适应频率系数和频率扫描系数使用脉冲压缩雷达系统产生补偿的传输信号。
-
公开(公告)号：US20230170596A1
公开(公告)日：2023-06-01
申请号：US17537781
申请日：2021-11-30
申请人： NAVICO HOLDING AS
CPC分类号： H01P3/123 , H01P1/2088
摘要： A radar device for limiting radio-frequency power leakage is provided. The radar device includes a first component, and a second component. The first component has a first surface and a first waveguide that defines a first cavity. The second component has a second surface and a second waveguide that defines a second cavity. A first groove is provided that acts as a choke, and the first groove is defined in the first surface. The first component and the second component are assembled so that an air gap is maintained between the first waveguide and the second waveguide. The first waveguide and the second waveguide are configured to facilitate transmission of radio-frequency power. The first groove is configured to reduce leakage of radio-frequency power through the air gap. Additional chokes may also be included.
-
公开(公告)号：US10222454B2
公开(公告)日：2019-03-05
申请号：US14829574
申请日：2015-08-18
申请人： Navico Holding AS
发明人： Lindsay Lilburn , Roger Phillips , Ee Chen
摘要： A system, computer-readable medium, and method for receiving reflected signals. In one implementation, the system includes a receiver, a pulse compressor, a framer, and a frame generator. The receiver receives the reflected signals. The pulse compressor compresses the reflected signals and the framer interprets the reflected signals. The frame generator combines one or more modified frames associated with the reflected signals.
-
公开(公告)号：US10120069B2
公开(公告)日：2018-11-06
申请号：US14829577
申请日：2015-08-18
申请人： Navico Holding AS
发明人： Lindsay Lilburn , Roger Phillips , Ee Chen
摘要： Various implementations described herein are directed to multiple ranges for pulse compression radar. In one implementation, a method may include transmitting a first burst for a first range using a pulse compression radar system, where the first burst comprises one or more first pulse signals. The method may also include transmitting a second burst for a second range using the pulse compression radar system after transmitting the first burst, where the second burst comprises one or more second pulse signals. The method may further include repeating a transmission of the first burst using the pulse compression radar system after transmitting the second burst.
-
公开(公告)号：US20180074182A1
公开(公告)日：2018-03-15
申请号：US14829577
申请日：2015-08-18
申请人： Navico Holding AS
发明人： Lindsay Lilburn , Roger Phillips , Ee Chen
CPC分类号： G01S13/282 , G01S7/28 , G01S7/282 , G01S13/0209 , G01S13/28 , G01S13/30 , G01S13/42 , G01S13/9307
摘要： Various implementations described herein are directed to multiple ranges for pulse compression radar. In one implementation, a method may include transmitting a first burst for a first range using a pulse compression radar system, where the first burst comprises one or more first pulse signals. The method may also include transmitting a second burst for a second range using the pulse compression radar system after transmitting the first burst, where the second burst comprises one or more second pulse signals. The method may further include repeating a transmission of the first burst using the pulse compression radar system after transmitting the second burst.
-
公开(公告)号：US20150369914A1
公开(公告)日：2015-12-24
申请号：US14310053
申请日：2014-06-20
申请人： Navico Holding AS
发明人： Andrew Corbett , Shane Coloney , Lindsay Lilburn
CPC分类号： G01S15/89 , G01S7/003 , G01S7/6218 , G01S13/86 , G01S13/862 , G01S13/89 , G01S13/9307 , G06T11/206
摘要： Various implementations described herein are directed to generating a map using radar data. In one implementation, a non-transitory computer-readable medium may have stored thereon a plurality of computer-executable instructions which, when executed by a computer, cause the computer to receive radar data for a marine environment proximate to a vessel, where the radar data are received from a radar sensor disposed on or proximate to the vessel. The computer-executable instructions may further be configured to cause the computer to generate a map of one or more substantially stationary objects in the marine environment based on the radar data.
摘要翻译： 这里描述的各种实施方式涉及使用雷达数据生成地图。 在一个实现中，非暂时计算机可读介质可以在其上存储有多个计算机可执行指令，当计算机执行时，该计算机可执行指令使计算机接收靠近船舶的海洋环境的雷达数据，其中雷达 从设置在容器上或附近的雷达传感器接收数据。 计算机可执行指令还可以被配置为使计算机基于雷达数据在海洋环境中生成一个或多个基本上静止的物体的地图。
-
公开(公告)号：US10114116B2
公开(公告)日：2018-10-30
申请号：US14829582
申请日：2015-08-18
申请人： Navico Holding AS
发明人： Lindsay Lilburn , Roger Phillips , Ee Chen
摘要： Various implementations described herein are directed to a common burst for pulse compression radar. In one implementation, a method may include determining a first burst for a first range using a pulse compression radar system, where the first burst comprises one or more first transmission frames. The method may also include determining a second burst for a second range using the pulse compression radar system, where the second burst comprises one or more second transmission frames. The method may further include transmitting a common burst for the first range and the second range using the pulse compression radar system, where the common burst includes the one or more first transmission frames and the one or more second transmission frames.
-
公开(公告)号：US10001548B2
公开(公告)日：2018-06-19
申请号：US14718064
申请日：2015-05-20
申请人： Navico Holding AS
发明人： Roger Phillips , Gregor Storz , Lindsay Lilburn
CPC分类号： G01S7/4008 , G01S7/282 , G01S7/2921 , G01S13/28 , G01S13/9307 , G01S13/956 , G01S2007/4013 , Y02A90/18
摘要： A system that has a chirp generator for emitting signals and an amplitude modulator for shaping the signals emitted by the chirp generator. The signals are shaped using a calibration ramp. The system further includes a Radio Frequency (RF) power amplifier for amplifying the signals shaped by the amplitude modulator, an RF power detector for measuring power levels of the signals amplified by the RF power amplifier, and a pre-distortion coefficient generator for adjusting the measured power levels using power detector calibration coefficients that correspond to the RF power detector.
-
-
-
-
-
-
-
-
-
搜索结果
18 条记录 (耗时 0.017 秒)
