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公开(公告)号：US5592131A
公开(公告)日：1997-01-07
申请号：US220215
申请日：1994-03-30
Applicant: Louis Labreche , Jean-Pierre Lepage
Inventor： Louis Labreche , Jean-Pierre Lepage
Abstract: A carrier frequency modulating system and method for producing a modulated carrier frequency is disclosed. The system comprises a carrier frequency signal generator for producing a carrier frequency signal at a carrier frequency at an output thereof. The system further comprises a sequencer for producing a modulation signal at an output thereof. This modulation signal comprises a plurality of modulation signal portions separated by at least one null modulation signal portion having a corresponding time length. The system is provided with a modulator for producing a modulated carrier frequency signal at an output thereof. The modulator has a first input connected to the output of the carrier frequency signal generator for receiving the carrier frequency signal, and has a second input for receiving the modulation signal. The system further comprises a power supply unit for supplying electrical power to the carrier frequency signal generator. The sequencer is connected to the carrier frequency signal generator for controlling the activation thereof and to interrupt the carrier frequency signal generator instead of modulating the null modulation signal portion during the corresponding time length, whereby power consumption of the system is minimized.
Abstract translation: 公开了一种用于产生调制载波频率的载波频率调制系统和方法。 该系统包括载波频率信号发生器，用于在其输出处产生载波频率的载波频率信号。 该系统还包括用于在其输出端产生调制信号的定序器。 该调制信号包括由具有相应时间长度的至少一个零调制信号部分分开的多个调制信号部分。 该系统设置有用于在其输出处产生调制载波频率信号的调制器。 调制器具有连接到载波频率信号发生器的输出的第一输入端，用于接收载波频率信号，并具有用于接收调制信号的第二输入端。 该系统还包括用于向载波频率信号发生器提供电力的电源单元。 定序器连接到载波频率信号发生器，用于控制其激活并中断载波频率信号发生器，而不是在相应的时间长度内调制零调制信号部分，从而使系统的功耗最小化。
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公开(公告)号：US4912480A
公开(公告)日：1990-03-27
申请号：US257375
申请日：1988-10-14
Applicant: A. R. Lopez
Inventor： A. R. Lopez
CPC classification number: H01Q21/005 , G01S1/56 , H01Q3/36
Abstract: An azimuthal scanning antenna for an aircraft landing system is formed of a set of vertically disposed columnar radiators arranged side-by-side in a horizontal array. The columnar radiators are tilted back in pitch 7.5.degree.. Individual ones of the radiators are formed of waveguide sections terminated by reflecting end walls. The terminating walls provide for a standing wave of electromagnetic field in response to microwave electromagnetic energy applied to the waveguide section by a feed disposed at or near the bottom of the waveguide section. Slot apertures are disposed along a front wall of each waveguide section, and are oriented at a selected angle relative to a perpendicular relationship to the sidewalls. The orientation of the slots introduces a variation in coupling for illumination of the radiation aperture of the radiator wherein the phase center is offset from a central point towards an upper end of each of the waveguide sections. The sighting of the feed and a phase shifter associated therewith to a point below the top of the waveguide section and the raising of the phase center enables the antenna to increase the height of the source point from which the beam appears to radiate. This provides better clearance of nearby objects, particularly a tower which supports an approach light, without intrusion toward an aircraft glide path. Another important characteristic is the antenna's frequency insensitivity, which provides performance over all MLS frequency channels without requiring mechanical adjustment of the antenna pitch angle.
Abstract translation: 用于飞机着陆系统的方位扫描天线由水平阵列并排布置的一组垂直设置的柱状散热器形成。 柱状散热器以7.5度的间距倾斜。 辐射器中的单个辐射器由通过反射端壁终止的波导部分形成。 终端壁响应于通过设置在波导部分的底部处或附近的馈电施加到波导部分的微波电磁能而提供电磁场的驻波。 槽孔沿着每个波导段的前壁布置，并且相对于与侧壁的垂直关系以选定的角度定向。 插槽的取向引入耦合的变化，用于照射散热器的辐射孔径，其中相位中心偏离每个波导段的中心点朝向上端。 馈电的瞄准和与其相关联的移相器到波导部分的顶部下方的点和相位中心的升高使得天线能够增加光束看起来辐射的源点的高度。 这样可以更好地清除附近的物体，特别是支撑入射光的塔，而不会侵入飞机滑翔道。 另一个重要的特点是天线的频率不敏感性，它提供了所有MLS频道的性能，而不需要天线俯仰角的机械调节。
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公开(公告)号：US4894655A
公开(公告)日：1990-01-16
申请号：US161099
申请日：1988-02-26
Applicant: Jean C. Joguet , Michel Schilliger
Inventor： Jean C. Joguet , Michel Schilliger
CPC classification number: G08G5/0013 , G01S1/56 , G01S19/07 , G08G5/025
Abstract: The system according to the invention uses GPS/NAVSTAR navigation satellites and includes:a fixed station located in the vicinity of the landing zone, containing a receiver for positioning by satellite that gives an estimate of the position of this fixed station and computing means that give correction data representing the deviation between this estimate and a reference position; and a data transmitter transmitting, in particular, these correction data on a radio channel which is conventionally used to transmit data in a microwave landing system called the MLS system;an on-board station in each aircraft comprising: an MLS receiver capable of receiving the ancillary data transmitted by the MLS system, a receiver for positioning by satellite and a computing device by which the correction data can be used to correct an estimate of position given by the positioning receiver.
Abstract translation: 根据本发明的系统使用GPS / NAVSTAR导航卫星，并且包括：位于着陆区附近的固定站，包含用于通过卫星定位的接收机，其给出该固定站的位置的估计和给出 表示该估计与参考位置之间的偏差的校正数据; 以及数据发送器，特别是在通常用于在称为MLS系统的微波着陆系统中发送数据的无线电信道上发送这些校正数据; 每个飞行器中的车载站包括：能够接收由MLS系统发送的辅助数据的MLS接收机，用于通过卫星定位的接收机和计算设备，通过该计算设备可以使用校正数据来校正给定的位置的估计 由定位接收机。
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公开(公告)号：US4654817A
公开(公告)日：1987-03-31
申请号：US635311
申请日：1984-07-27
Applicant: Carlos M. Dube , Walter L. Devensky
Inventor： Carlos M. Dube , Walter L. Devensky
CPC classification number: G01S1/56
Abstract: A real time controller is described for obtaining real time data from a sensor incorporating a memory, comparator, instruction decoder and real time counter. The real time controller solves the problem of gathering real time data as a function of time from a plurality of sensors receiving a plurality of signals.
Abstract translation: 描述了一种实时控制器，用于从包含存储器，比较器，指令解码器和实时计数器的传感器获得实时数据。 实时控制器解决了从接收多个信号的多个传感器收集作为时间的函数的实时数据的问题。
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5.发明授权
公开(公告)号：US4648101A
公开(公告)日：1987-03-03
申请号：US710113
申请日：1985-03-11
Applicant: Salim Hamzaoui , Michel Schilliger
Inventor： Salim Hamzaoui , Michel Schilliger
Abstract: The decoding circuit of the invention comprises essentially a digital filter 16, a pulse-width recognition circuit 17 a pulse peak amplitude selection circuit 23 and a circuit for decoding MLS boosted scanning pulse pairs 32 to 38. This decoding circuit makes it possible to eliminate parasite pulses from a clutter source whose width is incorrect when compared to the width of useful pulses and also to eliminate pulse pairs that have the right width but do not have the right interval.
Abstract translation: 本发明的解码电路基本上包括数字滤波器16，脉冲宽度识别电路17，脉冲峰值振幅选择电路23和用于解码MLS升压的扫描脉冲对32至38的电路。该解码电路使得可以消除寄生虫 当与有用脉冲的宽度相比时，其宽度不正确的杂波源的脉冲以及消除具有正确宽度但没有正确间隔的脉冲对。
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Patent Agency Ranking
公开(公告)号：US4623892A
公开(公告)日：1986-11-18
申请号：US685861
申请日：1984-12-24
Applicant: Mohamed Enein
Inventor： Mohamed Enein
Abstract: Received scanning signals radiated by a MLS ground system are used to determine and evaluate the approach angle of the aircraft. The difference between the angle for a particular scanning signal and the angle for a previous scanning signal is compared to a predetermined difference. A flag or alarm is indicated when the difference is greater than the predetermined difference for one second.
Abstract translation: 接收到的MLS地面系统辐射的扫描信号用于确定和评估飞机的进场角度。 将特定扫描信号的角度与先前扫描信号的角度之差与预定的差值进行比较。 当差值大于预定差值1秒时，指示标志或报警。
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公开(公告)号：US4489326A
公开(公告)日：1984-12-18
申请号：US358265
申请日：1982-03-15
Applicant: John Studenny
Inventor： John Studenny
CPC classification number: G01S1/56
Abstract: The disclosure teaches a method, and an apparatus for carrying out the method, for determining the time between TO and FRO received waveforms from the time reference scanning beam (TRSB) of a microwave landing system (MLS). In accordance with the invention, the time interval between the TO and FRO received waveforms is determined by correlating the received waveforms with apriori waveforms representative of the TO and FRO waveforms respectively. The apriori waveforms are generated by having a process construct matched filters for these waveforms. A FRO received waveform is used to provide an apriori representation of a TO received waveform and vice-versa. In one embodiment of the invention, the TO and FRO waveforms which are used to construct the matched filters are time reversed.
Abstract translation: 本发明公开了一种用于执行该方法的方法和装置，用于从微波着陆系统（MLS）的时间参考扫描光束（TRSB）确定接收波形的TO和FRO之间的时间。 根据本发明，通过将接收到的波形与表示TO和FRO波形的先验波形相关联来确定TO和FRO接收波形之间的时间间隔。 先验波形是通过对这些波形进行构造匹配滤波器来生成的。 FRO接收波形用于提供TO接收波形的先验表示，反之亦然。 在本发明的一个实施例中，用于构造匹配滤波器的TO和FRO波形是时间反转的。
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公开(公告)号：US3866163A
公开(公告)日：1975-02-11
申请号：US37555773
申请日：1973-07-02
Applicant: US AIR FORCE
Inventor： LITCHFORD GEORGE B
CPC classification number: G01S1/56
Abstract: An angle data processor apparatus utilizing a pair of phaselocked oscillator to determine the phase difference between transmitted reciprocating scanning beams. The phase difference being displayed to provide glide angle information.
Abstract translation: 一种利用一对锁相振荡器来确定发射的往复扫描光束之间的相位差的角度数据处理装置。 显示相位差以提供滑翔角信息。
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公开(公告)号：US07286077B2
公开(公告)日：2007-10-23
申请号：US11108116
申请日：2005-04-18
Applicant: Michel Falcati , Gilles Tatham
Inventor： Michel Falcati , Gilles Tatham
IPC: G05D1/08
Abstract: A system for aiding the landing of an aircraft on a runway uses an angular vertical position of the aircraft and includes at least one landing aid radio. In a stand-alone manner, the position of the aircraft in latitude and longitude is determined, and the position of the threshold of the runway in latitude and longitude is determined. A computing unit corrects, on the basis of positions of the aircraft and of the threshold of the runway, the angular vertical position of the aircraft. The corrected angular vertical position is used to aid the landing of the aircraft.
Abstract translation: 用于帮助飞机在跑道上着陆的系统使用飞行器的角度垂直位置并且包括至少一个着陆援助无线电装置。 以独立的方式确定飞机在纬度和经度上的位置，并确定跑道在纬度和经度上的位置。 计算单元根据飞机的位置和跑道的阈值来校正飞行器的角度垂直位置。 校正的角度垂直位置用于帮助飞机着陆。
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10.发明授权公开(公告)号：US07109914B2
公开(公告)日：2006-09-19
申请号：US10801578
申请日：2004-03-17
Applicant: Michel Falcati
Inventor： Michel Falcati
IPC: G01S13/91
Abstract: A method and device for carrying out switchover on a radio frequency landing system of an aircraft between a first input of a radio frequency receiver, which input is connected to a first antenna disposed on a lower part of the aircraft and receives a first signal, and a second input of the radio frequency receiver, which input is connected to a second antenna disposed on an upper part of the aircraft and receives a second signal. On initialization, switchover occurs to the input whose signal exhibits the highest level. After the initialization phase, a first value of a parameter, in relation to the aircraft, and a second value of this same parameter, in relation to the runway, are determined. The difference between these first and second values is computed, and switchover occurs to one of the first and second inputs as a function of this difference.
Abstract translation: 一种用于在射频接收机的第一输入端之间的飞机的射频着陆系统上进行切换的方法和装置，所述射频接收机的输入端连接到设置在飞机下部的第一天线并接收第一信号，以及 射频接收机的第二输入端，该输入端连接到设置在飞行器上部的第二天线，并接收第二信号。 在初始化时，对信号呈现最高级别的输入进行切换。 在初始化阶段之后，确定相对于飞行器的参数的第一值和与跑道相关的该相同参数的第二值。 计算这些第一和第二值之间的差异，并且根据该差异将切换发生到第一和第二输入中的一个。
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