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    • 2. 发明申请
    • MULTI-MODE PULSED RADAR PROVIDING AUTOMATIC TRANSMIT PULSE SIGNAL CONTROL
    • 多模式脉冲雷达提供自动发送脉冲信号控制
    • WO2015084552A1
    • 2015-06-11
    • PCT/US2014/065123
    • 2014-11-12
    • HONEYWELL INTERNATIONAL INC.
    • SAI, Bin
    • G01F23/22G01S13/10
    • G01F23/284G01S7/285G01S7/34G01S7/4008G01S7/52033G01S7/529G01S13/0209G01S13/106G01S13/26G01S13/282G01S13/88G01S2007/4013
    • A multi-mode pulsed radar method (200) for sensing or measuring a product material in a storage tank includes providing (201) a measure of radar signal attenuation for pulsed radar signals transmitted to the product material. Automatic adjustment (202) of one or more transmitted radar pulse parameters is implemented by selecting a pulse width and a pulse amplitude based on the measure of radar signal attenuation. In signal mode 2 higher amplitude and/or wider pulses are selected when the measure of radar signal attenuation is relatively high and in signal mode 1 lower amplitude and/or narrower pulses are selected when the measure of radar signal attenuation is relatively low. The radar pulse is transmitted (203) to the product material using the selected pulse width and the pulse amplitude. The target signal reflected or scattered (204) from the product material is processed to determine at least one parameter, such as product level.
    • 用于感测或测量储罐中的产品材料的多模式脉冲雷达方法(200)包括提供(201)传输到产品材料的脉冲雷达信号的雷达信号衰减的量度。 通过基于雷达信号衰减的测量选择脉冲宽度和脉冲幅度来实现一个或多个发射的雷达脉冲参数的自动调整(202)。 在信号模式2中,当雷达信号衰减的测量值相对较高时,选择较高的幅度和/或较宽的脉冲,而在信号模式1中,当雷达信号衰减的测量值相对较低时,选择较低的幅度和/或较窄的脉冲。 使用所选择的脉冲宽度和脉冲幅度将雷达脉冲(203)传输到产品材料。 从产品材料反射或散射(204)的目标信号被处理以确定至少一个参数,例如产品水平。
    • 6. 发明申请
    • ELECTROMAGNETIC HIDDEN OBJECT DETECTOR
    • 电磁隐藏物体检测器
    • WO1994027168A1
    • 1994-11-24
    • PCT/US1994004813
    • 1994-05-09
    • THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    • THE REGENTS OF THE UNIVERSITY OF CALIFORNIAMcEWAN, Thomas, E.
    • G01V03/17
    • G01S7/285G01F23/284G01S5/06G01S13/003G01S13/0209G01S13/0218G01S13/04G01S13/103G01S13/106G01S13/18G01S13/885G01S2013/9314G01S2013/9321G01V3/12G08G1/04H04B1/7163H04B1/71637
    • An electromagnetic detector (1, 100) is designed to locate an object (22, 122) behind a separator. The detector (1, 100) includes a PRF generator (10, 104) for generating 2 MHz pulses, a homodyne oscillator (102) for generating a 2 kHz square wave, and for modulating the pulses from the PFR generator (10, 104). A transmit antenna (18, 188) transmits the modulated pulses through the separator (24), and a receive antenna (20, 120) receives the signals reflected from the separator (24). The receiver path of the detector (1, 100) includes a sample and hold circuit (26), an AC coupled amplifier (129) which filters out DC bias level shifts in the sample and hold circuit (26), and a rectifier circuit (130) connected to the homodyne oscillator and to the AC coupled amplifier (129), for synchronously rectifying the modulated pulses transmitted over the transmit antenna (18, 118). The homodyne oscillator (102) modulates the signal from the PFR generator (10, 104) with a continuous wave (CW) signal, and the AC coupled amplifier (129) operates with a passband centered on that CW signal.
    • 电磁检测器(1,100)被设计成将分离器后面的物体(22,122)定位。 检测器(1,100)包括用于产生2MHz脉冲的PRF发生器(10,104),用于产生2KHz方波的零差振荡器(102)和用于调制来自PFR发生器(10,104)的脉冲, 。 发射天线(18,188)通过分离器(24)传送调制脉冲,接收天线(20,120)接收从分离器(24)反射的信号。 检测器(1,100)的接收器路径包括采样和保持电路(26),滤波采样和保持电路(26)中的DC偏置电平偏移的AC耦合放大器(129)和整流器电路 130),连接到零差振荡器和AC耦合放大器(129),用于同步整流在发射天线(18,118)上传输的调制脉冲。 零差振荡器(102)用连续波(CW)信号调制来自PFR发生器(10,104)的信号,并且AC耦合放大器(129)以以该CW信号为中心的通带进行操作。
    • 7. 发明申请
    • パルス生成装置
    • 脉冲发生器件
    • WO2014157496A1
    • 2014-10-02
    • PCT/JP2014/058810
    • 2014-03-27
    • 古河電気工業株式会社古河AS株式会社
    • 石田 順士青柳 靖高橋 慶
    • G01S7/282
    • H04L25/4902G01S7/023G01S7/282G01S13/106G01S13/30H04L27/122
    •  簡単な構成でパルスパターンを好適に調整して出力することが可能なパルス生成装置を提供する。 パルス生成装置100は、所定周波数の搬送波を生成する高周波発振器110と、ベースバンドで所定のパルス形状の信号を生成するベースバンドパルス生成部120と、ベースバンドパルス生成部120でパルスを生成するタイミングを制御するタイミング生成器130と、高周波発振器110から出力される搬送波をベースバンドパルス生成部120から出力されるパルスで変調するミキサ140と、を備えている。タイミング生成器130は、ベースバンドパルス生成部120から出力されるパルスの波形を調整することが可能となっている。
    • 提供了能够通过简单的配置适当地调整脉冲图案并输出脉冲图案的脉冲发生装置。 脉冲发生装置(100)具备:高频振荡器(110),用于产生预定频率的载波; 用于在基带中产生具有预定脉冲形状的信号的基带脉冲产生单元(120) 定时发生器(130),用于控制基带脉冲发生单元(120)产生脉冲的定时; 以及用于通过从基带脉冲发生单元(120)输出的脉冲来调制从高频振荡器(110)输出的载波的混频器(140)。 定时发生器(130)能够调整从基带脉冲发生单元(120)输出的脉冲的波形。
    • 8. 发明申请
    • RANGE MEASUREMENT APPARATUS AND METHOD USING CHAOTIC UWB WIRELESS COMMUNICATION
    • 范围测量装置和使用混沌UWB无线通信的方法
    • WO2007066859A1
    • 2007-06-14
    • PCT/KR2006/001973
    • 2006-05-25
    • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTELEE, Cheol-HyoKIM, Jae-Young
    • LEE, Cheol-HyoKIM, Jae-Young
    • G01S5/02
    • G01S13/0209G01S13/106G01S13/74G01S13/765H04L27/001
    • Provided is a range measurement apparatus and method based on chaotic ultra wideband (UWB) wireless communication. The apparatus includes a chaotic signal generating/modulating unit for generating/modulating chaotic signals and outputting them to a transceiving unit; a transceiver for transceiving radio signals; a detector for detecting the radio signals in forms of voltage signals; a transformer for sampling the analog voltage signals and outputting first digital signals of a predetermined level; a comparator for comparing levels of the analog voltage signals with a threshold value and outputting second digital signals; and a range measurement unit for calculating a leading edge, which is a moment when initial data of a packet pay load arrive, by using the binary signals from transformation of the first digital signals based on the threshold and the second digital signals, and performing range measurement based on the leading edge. This research is applied to chaotic UWB wireless communication.
    • 提供了一种基于混沌超宽带(UWB)无线通信的距离测量装置和方法。 该装置包括用于产生/调制混沌信号并将其输出到收发单元的混沌信号产生/调制单元; 用于收发无线电信号的收发器; 用于以电压信号的形式检测无线电信号的检测器; 用于对模拟电压信号进行采样并输出预定电平的第一数字信号的变压器; 比较器,用于将模拟电压信号的电平与阈值进行比较并输出第二数字信号; 以及范围测量单元,用于通过使用来自基于阈值和第二数字信号的第一数字信号的变换的二进制信号来计算分组付费负载的初始数据到达的时刻的前沿,并且执行范围 测量基于前沿。 本研究应用于混沌UWB无线通信。
    • 10. 发明申请
    • PULSE RADAR VARYING IRREGULAR SPACED FREQUENCY SPECTRUM FROM PULSE TO PULSE WHEN DETECTING JAMING SIGNALS
    • 检测到JAMING信号时,脉冲雷达变化的脉冲间隔频率从脉冲到脉冲
    • WO2002086535A1
    • 2002-10-31
    • PCT/US2002/012408
    • 2002-04-18
    • RAYTHEON COMPANY
    • SMALL, James, G.
    • G01S13/10
    • G01S7/36G01S7/28G01S13/106G01S13/24
    • A radar for locating and tracking objects based on the use of a pulsed waveform, each pulse of the pulsed waveform being made up of a plurality of spectral components having different frequencies, including an antenna. The radar further includes a transmitter operatively coupled to the antenna for generating the plurality of spectral components that make up each pulse of the pulsed waveform and a receiver operatively coupled to the antenna for receiving signals at the frequencies of the plurality of spectral components. The radar also includes a signal processor operatively coupled to the receiver for processing the received signals in order to generate and output a radar presentation and to detect the presence of other signals at particular frequencies, a display operatively coupled to the signal processor for displaying the radar presentation, and finally a controller operatively coupled to the transmitter and the signal processor for varying the frequencies at which the plurality of spectral components are generated, such that the transmitter generates spectral components at frequencies different from the frequencies of other signals detected by the signal processor.
    • 基于使用脉冲波形来定位和跟踪物体的雷达,脉冲波形的每个脉冲由具有不同频率的多个频谱分量组成,包括天线。 雷达还包括可操作地耦合到天线的发射机,用于产生组成脉冲波形的每个脉冲的多个频谱分量,以及可操作地耦合到天线的接收机,用于接收多个频谱分量的频率的信号。 雷达还包括可操作地耦合到接收器的信号处理器,用于处理所接收的信号,以便产生和输出雷达显示并且检测特定频率处的其它信号的存在,操作地耦合到信号处理器的显示器用于显示雷达 呈现,最后是可操作地耦合到发射机和信号处理器的控制器,用于改变生成多个频谱分量的频率,使得发射机产生频率分量,其频率不同于由信号处理器检测到的其它信号的频率 。