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71. 发明申请

US20190094060A1 METHOD FOR MEASURING FILL LEVEL OF A FILL SUBSTANCE LOCATED IN A CONTAINER BY MEANS OF TERAHERTZ PULSES 审中-公开
公开(公告)号：US20190094060A1
公开(公告)日：2019-03-28
申请号：US16079604
申请日：2017-02-13
申请人： Endress+Hauser SE+Co. KG
发明人： Thomas Blödt
IPC分类号： G01F23/284 , G01S13/12
摘要： The disclosure relates to a method for measuring fill level of a fill substance using terahertz (THz) pulses or for determining distance to an object using terahertz pulses, as well as to a fill-level measuring device suitable for performing such method. The THz pulses are transmitted with a repetition frequency, wherein the repetition frequency according to the invention is controlled in such a manner as a function of travel time that the repetition frequency increases in the case of decreasing travel time and decreases in the case of increasing travel time. The separation or the fill level is determined not based on the measured travel time, but is based on repetition frequency. An exact fill level determination can be performed based on THz pulses, even when the frequency of the THz pulses significantly fluctuates. Consequently, very simply embodied pulse production units with comparatively small requirements for frequency stability of the THz pulses can be used.

72. 发明申请

US20190025417A1 RADAR DEVICE USING DELAY 审中-公开
公开(公告)号：US20190025417A1
公开(公告)日：2019-01-24
申请号：US16037998
申请日：2018-07-17
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Pil Jae PARK , Seongdo KIM , Bon Tae KOO
IPC分类号： G01S13/12 , G01S7/02 , G01S7/292
摘要： A radar device according to an embodiment of the inventive concept includes a clock generator, a transmitter, a receiver, and a signal processor. The clock generator outputs the transmission clock, outputs the reception clock at the second time after the delay from the first time when the transmission clock is outputted, and generates the notification signal when the delay has the minimum value. The transmitter emits a transmission signal based on the transmission clock. The receiver receives an echo signal corresponding to the transmission signal, and generates a first signal corresponding to the echo signal based on the reception clock. The signal processor obtains a third time point at which a delay has the minimum value based on the notification signal.

73. 发明申请

US20180059232A1 PULSE RADAR DEVICE AND OPERATING METHOD THEREOF 审中-公开
公开(公告)号：US20180059232A1
公开(公告)日：2018-03-01
申请号：US15681877
申请日：2017-08-21
申请人： Electronics and Telecommunications Research Institute
发明人： PIL JAE PARK , Seong-Do KIM
IPC分类号： G01S13/526 , G01S13/12 , G01S7/292 , G01S7/486
CPC分类号： G01S13/526 , G01S7/282 , G01S7/285 , G01S7/2923 , G01S7/4866 , G01S13/12
摘要： Provided is a pulse radar device including: a TX unit configured to emit a TX pulse according to a single TX clock signal; a multiple-RX units configured to receive echo pulses received through a plurality of RX antennas according to multiple RX clock signals; a pulse radar driving unit configured to generate the single TX clock signal and the multiple RX clock signals using a reference clock signal. The pulse radar driving unit provides the single TX clock signal and the multiple RX clock signals for the TX unit and the multiple-RX unit. The pulse radar driving unit adjusts an RX clock-to-clock delay that is the delay between the multiple RX clock signals so as to adjust a directivity of the multiple-RX unit, and a TX-to-RX delay between the single TX clock signal and the multiple RX clocks signals so as to adjust a detection range.

74. 发明授权

US09746366B2 Radar level gauging 有权
公开(公告)号：US09746366B2
公开(公告)日：2017-08-29
申请号：US14556652
申请日：2014-12-01
申请人： Rosemount Tank Radar AB
发明人： Valter Nilsson , Fabian Wenger
IPC分类号： G01F23/00 , G01F23/284 , G01S13/22 , G01S13/12 , G01S7/28 , G01S13/88
CPC分类号： G01F23/284 , G01F23/0069 , G01S7/28 , G01S13/12 , G01S13/227 , G01S13/88
摘要： Method for determining product surface distance in a tank comprising: i) generating a transmission signal as a first pulse train; ii) generating a reference signal having a second pulse train by time delaying said first pulse train; wherein each pulse in said first and second pulse trains have essentially identical waveforms and pulse repetition frequency; iii) guiding said transmission signal towards the product surface; iv) receiving a reflected signal; v) forming a correlation value based on a time correlation between the reference signal and the reflected signal; vi) carrying out steps i) to v) in sequence for at least three different pulse repetition frequencies, until at least three pairs of correlation values and associated pulse repetition frequencies have been stored; vii) determining said distance based on said at least three pairs of correlation values and associated pulse repetition frequencies, and said fixed time delay.

75. 发明申请

US20160153821A1 RADAR LEVEL GAUGING 有权
标题翻译：雷达电平测量
公开(公告)号：US20160153821A1
公开(公告)日：2016-06-02
申请号：US14556652
申请日：2014-12-01
申请人： Rosemount Tank Radar AB
发明人： Valter Nilsson , Fabian Wenger
IPC分类号： G01F23/284 , G01F23/00 , G01S7/28 , G01S13/22 , G01S13/12
CPC分类号： G01F23/284 , G01F23/0069 , G01S7/28 , G01S13/12 , G01S13/227 , G01S13/88
摘要： Method for determining product surface distance in a tank comprising: i) generating a transmission signal as a first pulse train; ii) generating a reference signal having a second pulse train by time delaying said first pulse train; wherein each pulse in said first and second pulse trains have essentially identical waveforms and pulse repetition frequency; iii) guiding said transmission signal towards the product surface; iv) receiving a reflected signal; v) forming a correlation value based on a time correlation between the reference signal and the reflected signal; vi) carrying out steps i) to v) in sequence for at least three different pulse repetition frequencies, until at least three pairs of correlation values and associated pulse repetition frequencies have been stored; vii) determining said distance based on said at least three pairs of correlation values and associated pulse repetition frequencies, and said fixed time delay.
摘要翻译：用于确定罐中产品表面距离的方法，包括：i）产生作为第一脉冲串的传输信号; ii）通过时间延迟所述第一脉冲串产生具有第二脉冲串的参考信号; 其中所述第一和第二脉冲串中的每个脉冲具有基本相同的波形和脉冲重复频率; iii）将所述传输信号引导到产品表面; iv）接收反射信号; v）基于参考信号和反射信号之间的时间相关性形成相关值; vi）按顺序执行步骤i）至v）至少三个不同的脉冲重复频率，直到存储了至少三对相关值和相关联的脉冲重复频率; vii）基于所述至少三对相关值和相关联的脉冲重复频率以及所述固定时间延迟来确定所述距离。

76. 发明授权

US07466261B1 Method and system for radio detection and ranging intrusion detection system 有权
标题翻译：无线电探测和入侵检测系统的方法和系统
公开(公告)号：US07466261B1
公开(公告)日：2008-12-16
申请号：US11460143
申请日：2006-07-26
申请人： Ralph Thomas Hoctor , Jeffrey Michael Ashe , Vincent Paul Staudinger , Kenneth Brakeley Welles
发明人： Ralph Thomas Hoctor , Jeffrey Michael Ashe , Vincent Paul Staudinger , Kenneth Brakeley Welles
IPC分类号： G01S13/12 , G01S13/10 , G01S13/00
CPC分类号： G01S13/56 , G01S7/288 , G01S13/12
摘要： A RADAR system including a set of RADAR apparatuses is disclosed. Each apparatus includes a processor, a pulse unit in signal communication with the processor, a waveform signal generator in signal communication with the pulse unit, and a set of radar antennas in signal communication with the waveform signal generator. The waveform signal generator is capable of generating a waveform signal in response to pulses provided by the pulse unit. The set of antennas is capable of transmitting a burst of microwave energy in response to each waveform signal and to receive a plurality of reflected bursts associated with the transmitted bursts. An acquisition unit is configured to develop and amplify a finite window integral associated with each reflected burst, the acquisition unit in signal communication with the set of antennas and a pre-processor configured to digitize and store information relating to each finite window integral for subsequent processing.
摘要翻译：公开了一种包括一组雷达装置的雷达系统。每个装置包括处理器，与处理器进行信号通信的脉冲单元，与脉冲单元信号通信的波形信号发生器，以及与波形信号发生器进行信号通信的一组雷达天线。波形信号发生器能够响应由脉冲单元提供的脉冲而产生波形信号。该组天线能够响应于每个波形信号发送微波能量脉冲并且接收与所发射的脉冲串相关联的多个反射脉冲串。获取单元被配置为开发和放大与每个反射的突发相关联的有限窗口积分，所述获取单元与所述天线组进行信号通信，以及预处理器，其被配置为数字化并存储与每个有限窗口积分相关的信息用于后续处理。

77. 发明授权

US07151481B1 Method for detecting targets and determining their distance via an HPRF radar system 有权
标题翻译：通过HPRF雷达系统检测目标并确定其距离的方法
公开(公告)号：US07151481B1
公开(公告)日：2006-12-19
申请号：US11269679
申请日：2005-11-09
申请人： Andreas Strecker , Andreas Wieszt , Nergess Al-Youssof , Thomas Mahr
发明人： Andreas Strecker , Andreas Wieszt , Nergess Al-Youssof , Thomas Mahr
IPC分类号： G01S13/12
CPC分类号： G01S13/22 , G01S7/2923 , G01S13/20
摘要： A method for detecting targets and determining their distance by means of an HPRF radar system including a transmitter for transmitting bursts having a preselectable number Z of transmission pulses and a preselectable pulse repetition frequency PRF and a receiver for receiving the echo signals. Successive bursts are transmitted with a preselectable time lag, where the time lag corresponds to a preselectable number E of transmission pulses. A data record of Z+E detected signals is generated, where each detected signal consists of superimposed echo signals from different unique distance ranges, each distance range having a number A of distance lines, each line having Z+E distance cells. A target is detected by calculating a Z+E-point fast Fourier transform for each distance line, and determining when the signal amplitude is greater than a preselectable threshold value. The distance to a target is determined by calculating spectra of Z-point fast Fourier transforms for the distance lines by shifting a Z-point FFT window incrementally over the Z+E distance cells of a distance line.
摘要翻译：一种用于通过HPRF雷达系统检测目标并确定其距离的方法，所述HPRF雷达系统包括用于发送具有可选择数量Z的传输脉冲的突发的发射机和预选的脉冲重复频率PRF以及用于接收回波信号的接收机。连续突发以预选的时间延迟发送，其中时间延迟对应于传输脉冲的可预选数量E. 产生Z + E检测信号的数据记录，其中每个检测信号由来自不同唯一距离范围的叠加回波信号组成，每个距离范围具有距离线数A，每行具有Z + E距离单元。通过对每个距离线计算Z + E点快速傅里叶变换，以及确定信号幅度何时大于预选阈值来检测目标。通过在距离线的Z + E距离单元上逐渐移动Z点FFT窗口来计算距离线的Z点快速傅里叶变换的光谱，来确定到目标的距离。

78. 发明授权

US6111537A Method for reducing false target echo indications 有权
标题翻译：减少假目标回波指示的方法
公开(公告)号：US6111537A
公开(公告)日：2000-08-29
申请号：US267381
申请日：1999-03-15
申请人： Bengt Andersson
发明人： Bengt Andersson
IPC分类号： G01S13/20 , G01S13/22 , G01S7/28 , G01S13/12 , G01S13/18
CPC分类号： G01S13/227 , G01S13/20
摘要： Method for reducing false target echo indications in a pulse Doppler radar having at least two different pulse repetition frequencies during the period in which the main beam of the radar illuminates a target. A target which is detected gives rise to a number of primary detections in each PRF. The method includes use of at least one variable criterion and a final criterion, which are both of the M/N type. The factor M in the variable criterion is initially greater than the factor M in the final criterion. The method also includes the feature that primary detections which are all to be found in the same range gate in a number of PRF's, which number is equal to the factor M in the variable criterion, are approved as targets in this range gate. If the factor M in the variable criterion and the final criterion are not equal, the approved primary detections and all other primary detections corresponding thereto, are removed from further processing, and if the factor M in the variable and the other criterion are not equal, a predetermined number is subtracted from the factor M in the variable criterion.
摘要翻译：一种用于在雷达主光束照射目标的周期内具有至少两个不同脉冲重复频率的脉冲多普勒雷达中减少假目标回波指示的方法。检测到的目标在每个PRF中产生多个主要检测。该方法包括使用M / N型的至少一个可变标准和最终标准。可变准则中的因子M最初大于最终准则中的因子M. 该方法还包括以下特征：在多个PRF中的相同范围门中找到的主要检测，其数量等于可变准则中的因子M，被批准为该范围门中的目标。如果可变准则中的因子M和最终准则不相等，则从被进一步处理中去除已批准的主要检测和对应的所有其他主要检测，并且如果变量和另一准则中的因子M不相等，从可变准则中的因子M中减去预定数量。

79. 发明授权

US5682164A Pulse homodyne field disturbance sensor 失效
标题翻译：脉冲零差场扰动传感器
公开(公告)号：US5682164A
公开(公告)日：1997-10-28
申请号：US654407
申请日：1996-05-28
申请人： Thomas E. McEwan
发明人： Thomas E. McEwan
IPC分类号： G01V3/12 , G01S7/282 , G01S7/285 , G01S7/40 , G01S13/02 , G01S13/04 , G01S13/12 , G01S13/18 , G01S13/32 , G01S13/34 , G01S13/56 , G08B13/181
CPC分类号： G01S13/18 , A61B5/0507 , G01S13/0209 , G01S13/348 , G01S13/56
摘要： A field disturbance sensor operates with relatively low power, provides an adjustable operating range, is not hypersensitive at close range, allows co-location of multiple sensors, and is inexpensive to manufacture. The sensor includes a transmitter that transmits a sequence of transmitted bursts of electromagnetic energy. The transmitter frequency is modulated at an intermediate frequency. The sequence of bursts has a burst repetition rate, and each burst has a burst width and comprises a number of cycles at a transmitter frequency. The sensor includes a receiver which receives electromagnetic energy at the transmitter frequency, and includes a mixer which mixes a transmitted burst with reflections of the same transmitted burst to produce an intermediate frequency signal. Circuitry, responsive to the intermediate frequency signal indicates disturbances in the sensor field. Because the mixer mixes the transmitted burst with reflections of the transmitted burst, the burst width defines the sensor range. The burst repetition rate is randomly or pseudo-randomly modulated so that bursts in the sequence of bursts have a phase which varies. A second range-defining mode transmits two radio frequency bursts, where the time spacing between the bursts defines the maximum range divided by two.
摘要翻译：场干扰传感器以相对较低的功率运行，提供可调整的工作范围，在近距离范围内不会过敏，允许多个传感器共同定位，制造成本低廉。传感器包括发射电磁能量的发射脉冲序列的发射机。发射机频率在中频调制。突发序列具有突发重复率，并且每个突发具有突发宽度并且包括在发射机频率处的多个周期。该传感器包括接收器，其在发射机频率处接收电磁能量，并且包括混合器，其将所发送的脉冲串与相同发射脉冲串的反射混合以产生中频信号。响应于中频信号的电路表示传感器场中的干扰。由于混频器将传输的脉冲串与传输脉冲串的反射混合，所以脉冲串宽度定义了传感器范围。突发重复率是随机或伪随机调制的，使得突发序列中的突发具有变化的相位。第二范围定义模式发射两个射频突发，其中突发之间的时间间隔定义了最大范围除以2。

80. 发明授权

US5150125A High Doppler rate, high altitude capability coherent pulse Doppler radar altimeter 失效
标题翻译：高多普勒频率，高空能力相干脉冲多普勒雷达高度计
公开(公告)号：US5150125A
公开(公告)日：1992-09-22
申请号：US632938
申请日：1990-12-24
申请人： James R. Hager
发明人： James R. Hager
IPC分类号： G01S13/10 , G01S7/40 , G01S13/02 , G01S13/12 , G01S13/18 , G01S13/20 , G01S13/22 , G01S13/50 , G01S13/70 , G01S13/88
CPC分类号： G01S13/227 , G01S13/20 , G01S13/70 , G01S13/18 , G01S13/882 , G01S2013/0281 , G01S7/4008
摘要： A pulse Doppler radar altimeter designed to resolve the ambiguous range problem associated with the use of a pulse repetition interval, which is less than the aircraft altitude, includes a radar transmitter configured to transmit first and second series of pulses where the first series has a pulse repetition interval slightly different from the pulse repetition interval of the second series. At a time when the first series is being transmitted, the receiver electronics including a range gate and a tracker searches for ground returns and positions the range gate in time coincidence with the detected ground return. Control then shifts so that the second series of pulses is transmitted and a determination is made whether overlap of the range gate with the ground return from the second series corresponds to the same altitude as when the first series was involved. If not, it is known that the detected range is ambiguous and the tracker continues repositioning the range gate (altitude) until an unambiguous range determination is made.
摘要翻译：设计用于解决与使用小于飞行器高度的脉冲重复间隔相关联的模糊范围问题的脉冲多普勒雷达高度计包括雷达发射机，其被配置为发射第一和第二脉冲序列，其中第一系列具有脉冲重复间隔与第二系列的脉冲重复间隔稍有不同。在第一系列被发送的时候，包括量程门和跟踪器的接收机电子装置搜索地面返回，并且将距离门与检测到的地面返回时间重合。然后控制移动，使得第二系列脉冲被传送，并且确定范围门与第二系列的接地返回的重叠是否与涉及第一系列相同的高度。如果没有，则已知检测到的范围是模糊的，并且跟踪器继续重新定位范围门（高度），直到进行明确的范围确定。

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