公开(公告)号：US4415899A

公开(公告)日：1983-11-15

申请号：US323216

申请日：1981-11-20

申请人： Horst Vogel ,  Horst Idler ,  Arno H. Taruttis

发明人： Horst Vogel ,  Horst Idler ,  Arno H. Taruttis

IPC分类号： G01S1/02 ,  G01S1/16

CPC分类号： G01S1/024

摘要： A monitor located about 100 m from the ILS localizer determines whether the DDM alarm threshold was exceeded due to an equipment error or to an error caused by an overflying aircraft. To accomplish this, either the maximum of the frequency spectrum of the variation with time of the differentiated DDM signal is located, or the frequency spectrum of the variation with time of the DDM signal or of the differentiated DDM signal is compared with one or a plurality of spectra typical of equipment errors or of errors caused by overflying aircraft.

摘要翻译： 位于距离ILS定位器约100米处的监视器确定由于设备错误或由于飞机造成的错误是否超过了DDM警报阈值。 为了实现这一点，可以定位差分DDM信号随时间变化的频谱的最大值，或将DDM信号或差分DDM信号随时间变化的频谱与一个或多个 的光谱典型的设备错误或由飞机造成的错误。

公开(公告)号：US4387375A

公开(公告)日：1983-06-07

申请号：US282341

申请日：1981-07-10

申请人： Herbert Kleiber ,  Horst Idler ,  Jurgen Stammelbach

发明人： Herbert Kleiber ,  Horst Idler ,  Jurgen Stammelbach

IPC分类号： G01S1/50 ,  G01S1/02 ,  G01S1/38 ,  G01S1/30

CPC分类号： G01S1/38 ,  G01S1/024

摘要： In navigation transmitters it is important that the phase difference between the carrier waves of a carrier signal and the carrier waves of sideband signals be held at a constant value. To accomplish this, the carrier waves are maintained constant relative to a reference signal in a known manner. A phase meter measures the phase difference between the carrier waves of the sideband signals and the reference signal and between the carrier waves of the carrier signal and the reference signal. The measure values are used to determine the phase difference between the carrier signal and sideband signals which are compared with a desired value. Depending on the deviation from the desired value, a controllable phase shifter controls the phase of the carrier waves of the sideband signals. Since the measurements are made on a time-division multiplex basis, little circuitry is required. Any measuring errors do not affect the formation of the desired phase difference.

摘要翻译： 在导航发射机中，重要的是载波信号的载波与边带信号的载波之间的相位差保持在恒定值。 为了实现这一点，载波相对于参考信号以已知的方式保持恒定。 相位计测量边带信号的载波与参考信号之间以及载波信号的载波与参考信号之间的相位差。 测量值用于确定与期望值进行比较的载波信号和边带信号之间的相位差。 根据与期望值的偏差，可控移相器控制边带信号的载波的相位。 由于测量是以时分复用为基础的，因此需要很少的电路。 任何测量误差都不会影响所需相位差的形成。

公开(公告)号：US06236337B1

公开(公告)日：2001-05-22

申请号：US09027694

申请日：1998-02-23

申请人： Wolfgang Beier ,  Horst Idler

发明人： Wolfgang Beier ,  Horst Idler

IPC分类号： G08G109

CPC分类号： H04W88/04 ,  G08G1/161 ,  H04B7/26 ,  H04W40/02 ,  H04W64/00

摘要： A process for transmitting information between moving bodies, in particular vehicles (3, 4, 5, 8, 8′), wherein each of the moving bodies has a communication device (6) for receiving and sending radio messages (7). In order to be able to transmit information very rapidly to a large number of moving bodies, a radio message (7) is generated, which contains the information and limit parameters, which signalize an end of the information transmission, at least one of the moving bodies receives the radio message (7) and sends it to every other moving body that comes within range of the radio message (7), and for the cascade-like dissemination of the information, every other moving body that has received the radio message (7), sends it to every other moving body that comes within range of the radio message (7).

摘要翻译： 一种用于在移动体之间传送信息的过程，特别是车辆（3,4,5,8,8'），其中每个移动体具有用于接收和发送无线电消息的通信装置（6）。 为了能够将信息非常迅速地发送到大量移动体，产生无线电消息（7），其包含信号和限制参数，信号通知信息传输的结束，移动中的至少一个 身体接收到无线电消息（7）并将其发送到在无线电消息（7）的范围内的每个其他移动体，并且对于已经接收到无线电消息的每个其他移动体（7） ），将其发送到无线电信息范围内的每个其他移动体（7）。

公开(公告)号：US4506332A

公开(公告)日：1985-03-19

申请号：US343491

申请日：1982-01-28

申请人： Samuel Bloch ,  Klaus Bressler ,  Horst Idler ,  Herbert Kleiber

发明人： Samuel Bloch ,  Klaus Bressler ,  Horst Idler ,  Herbert Kleiber

IPC分类号： G01R31/00 ,  G01S1/02 ,  G01S1/14 ,  H04B3/04 ,  H04B17/00 ,  G01R19/00

CPC分类号： G01S1/14 ,  G01S1/024

摘要： A system for monitoring the level of an RF signal having such a small amplitude that it must be amplified before it can be monitored. To determine the deviation of the amplifier gain from the desired value, an additional RF signal of relatively high amplitude is used and is attenuated by a predetermined amount before being applied to the amplifier. The levels of the attenuated and subsequently amplified RF signal are compared with the level of the unchanged signal. From the deviation of this ratio, the gain variation is determined.Alternatively, in lieu of gain control of the amplifier the gain variation may be mathematically offset in the digital instrumentation provided.The monitoring system is suitable for use in the so-called instrument-landing system (ILS) and in VOR and DVOR en-route navigation systems.

摘要翻译： 一种用于监测具有如此小幅度的RF信号的电平的系统，其必须在被监视之前被放大。 为了确定放大器增益与期望值的偏差，使用相对高幅度的附加RF信号，并且在施加到放大器之前被衰减预定量。 将衰减和随后放大的RF信号的电平与不变信号的电平进行比较。 根据该比率的偏差，确定增益变化。 或者，代替放大器的增益控制，在所提供的数字仪器中增益变化可以在数学上被抵消。 监控系统适用于所谓的仪表着陆系统（ILS）和VOR和DVOR航路导航系统。