CN211014634U - Iron tower type distance measuring instrument ground equipment - Google Patents
Iron tower type distance measuring instrument ground equipment Download PDFInfo
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- CN211014634U CN211014634U CN202021049347.2U CN202021049347U CN211014634U CN 211014634 U CN211014634 U CN 211014634U CN 202021049347 U CN202021049347 U CN 202021049347U CN 211014634 U CN211014634 U CN 211014634U
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Abstract
The utility model provides tower type distance measuring instrument ground equipment, which comprises a pole holding antenna and a DME ground transmitting unit, wherein the DME ground transmitting unit is connected with the pole holding antenna and is communicated with an aircraft through the pole holding antenna; the pole embracing antenna is arranged on an iron tower along a route and comprises an antenna feed module and a plurality of antenna units; the DME ground transmitting unit is installed close to the iron tower and comprises a transponder, a transmitter, a monitor and a switch matrix, the transponder and the switch matrix are connected with the monitor, the transponder is connected with the transmitter, and the transmitter and the antenna feed module are connected with the switch matrix. The utility model discloses utilize the iron tower to act as the station of former ground DME station and install and embrace the pole antenna, can reduce cost, can utilize the iron tower resource to carry out installation, operation and the maintenance of way distancer ground equipment again.
Description
Technical Field
The utility model relates to a radio wave range finding field especially relates to an iron tower formula distancer ground equipment.
Background
Radio wave ranging is a ranging method based on an electromagnetic wave application technique, i.e., measuring a distance using radio waves. The radio wave ranging can be divided into three types according to its working principle: pulse ranging (also known as time ranging), phase ranging, and frequency ranging. The pulse ranging is to determine the target distance by using the space propagation time of a transmitted pulse signal and a received target reflection signal.
The traditional aircraft navigation is to utilize the signal of the ground navigation station to receive, and realize the guidance of the aircraft by flying to the station and the background, and the route and the flight procedure are restricted by the layout and the equipment type of the ground navigation station, so the precision is limited.
Because the aviation management field has higher requirements on navigation positioning accuracy, the traditional global navigation satellite system (GPS system, G L ONASS system, Galileo system and Beidou system) can not meet the requirements, and a navigation enhancement technology is needed to improve the capability of the traditional global navigation satellite system.
Since satellite-based navigation is easily affected by an ionosphere and human interference, a route map is implemented according to the international civil aviation organization ASBU, and the range finder device serving as a land-based navigation device implementing PBN continuously provides navigation support for civil aviation.
A land-based navigation system based on land-based navigation equipment mainly comprises two positioning means of angle measurement and distance measurement, which are respectively realized by two navigation methods of a Doppler omnidirectional beacon (DVOR) and a Distance Meter (DME), wherein the DVOR measures the magnetic azimuth angle of an airplane relative to a station, and the DME measures the slant distance between the airplane and a ground DME station. A single ground-based navigation station cannot realize the positioning of the aircraft, but the positioning of the aircraft can be realized by means of joint observation of DVOR-DME combination or DME-DME combination.
Based on this, besides airport distancer station, still need to build a large amount of route distancer stations, carry out distancer ground equipment's installation. However, the ground equipment of the range finder in the prior art has high requirements on the field, the land cost for building the station is high, the station is generally located in the field for avoiding obstacles and electromagnetic hazards, and the power supply, communication and management costs are also high.
Disclosure of Invention
The utility model provides an iron tower formula distancer ground equipment chooses for use transponder, transmitter, switch matrix, monitor, the interface control module of former ground DME station as DME ground emission unit, utilizes iron tower resource installation to embrace pole antenna on this basis to realize installation, operation and the maintenance of distancer ground equipment.
Realize the utility model discloses the technical scheme of purpose as follows:
a tower rangefinder ground appliance comprising: the ground transmitting unit comprises a holding pole antenna and a DME ground transmitting unit, wherein the holding pole antenna is connected with the DME ground transmitting unit, and the DME ground transmitting unit is communicated with the aircraft through the holding pole antenna; wherein:
the pole embracing antenna is arranged on an iron tower along a route, and comprises a plurality of antenna units and an antenna feed module, wherein the antenna units are arranged around the circumference of the antenna feed module, the antenna feed module is penetrated by an installation part, and the installation part is fixed on the iron tower;
the DME ground transmitting unit is installed close to an iron tower.
The utility model discloses can choose for use transponder, transmitter, switch matrix, monitor, interface control module of ground DME station as DME ground emission unit utilizes current iron tower to act as concrete station to install on the iron tower embrace pole antenna, with reduce cost.
DME ground emission unit utilizes embrace the interrogation signal of pole antenna reception aircraft transmission to according to interrogation signal generation gauss pulse modulation signal, then utilize embrace the pole antenna and give the aircraft with gauss pulse modulation signal transmission.
As a further improvement of the present invention, the DME ground transmitting unit comprises two working units and a switch matrix, the switch matrix comprises a load;
the two working units receive an inquiry signal transmitted by the aircraft through the pole-holding antenna at the same time, and respectively process the inquiry signal and generate a Gaussian pulse modulation signal;
the two working units are controlled by the switch matrix, one of the two working units broadcasts a Gaussian pulse modulation signal to the aircraft through the pole-holding antenna, and the switch matrix controls the other working unit to send the Gaussian pulse modulation signal to a load.
As a further improvement of the present invention, each working unit includes: a monitor, a transponder and a transmitter;
the monitor is connected with the transponder, and the transponder is connected with the transmitter;
the switch matrix simultaneously connects the monitor, the transponder and the transmitter.
As the utility model discloses a further improvement, the transponder includes receiver and treater, and the receiver is connected with the treater, and the receiver sends inquiry signal for the treater, and the treater is handled inquiry signal and is generated response trigger pulse signal, and the transmitter triggers pulse signal generation gauss pulse modulation signal according to responding.
As a further improvement of the utility model, the transmitter comprises a 100W power amplifier and a 1KW power amplifier, the 100W power amplifier is connected with the 1KW power amplifier, and the processor is connected with the 100W power amplifier;
and the response trigger pulse signal generated by the processor is amplified by a 100W power amplifier and a 1KW power amplifier in sequence and then sent to the pole-embracing antenna.
As a further improvement of the utility model, the switch matrix comprises two duplexers, a transponder change-over switch and a load, the two duplexers are connected with the transponder change-over switch, and the load is connected with the transponder change-over switch;
the two duplexers are respectively connected with a working unit, the transponder change-over switch controls the working unit to broadcast the Gaussian pulse modulation signal to the pole-embracing antenna, and the other working unit sends the Gaussian pulse modulation signal to a load.
As a further improvement of the present invention, the pole antenna has 16 antenna units, and the antenna feed module is connected to the 16 antenna units simultaneously.
As a further improvement of the present invention, the transponder receives and processes both the interrogation signal monitored by the monitor and the interrogation signal transmitted by the aircraft, and also generates a response trigger pulse signal according to both the interrogation signals;
the transmitter generates a Gaussian pulse modulation signal according to the response trigger pulse signal, and broadcasts the Gaussian pulse modulation signal to the aircraft through the pole holding antenna;
the monitor is used for generating a monitoring inquiry signal and monitoring the Gaussian pulse modulation signal, and the monitor also sends the monitoring inquiry signal to the transponder.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses choose for use the transponder, the transmitter, the switch matrix, the monitor of former ground DME station, interface control module as DME ground transmission unit, utilize the iron tower to act as the station, set up on this basis and embrace the pole antenna, embrace the pole antenna and install on the iron tower, can reduce cost (need not the land cost of building the station, reduce construction cost and power supply, administrative cost), can utilize the iron tower resource again to carry out installation, operation and the maintenance of way distancer ground equipment.
Drawings
FIG. 1 is a schematic block diagram of a tower rangefinder ground device;
FIG. 2 is a schematic block diagram of a tower rangefinder ground device with the addition of a ground support subsystem;
FIG. 3 is a schematic diagram of a pole-embracing antenna in tower-type distance meter ground equipment;
in fig. 3, 100 is an antenna feeding module; 200 is an antenna element.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that the functions, methods, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
The utility model provides tower type distance measuring instrument ground equipment, which comprises a pole holding antenna and a DME ground transmitting unit, wherein the DME ground transmitting unit is connected with the pole holding antenna and is communicated with an aircraft through the pole holding antenna; wherein: the pole embracing antenna is installed on the iron tower along the route, as shown in fig. 3, the pole embracing antenna comprises an antenna feed module 100 and a plurality of antenna units 200, the plurality of antenna units 200 are uniformly distributed around the circumference of the antenna feed module 100, and the antenna feed module 100 is penetrated through by the installation part, so that the pole embracing antenna is installed on the iron tower. Wherein, DME is distance measuring equipment, and DME ground emission unit is distance measuring equipment's ground emission unit.
In the utility model, the DME ground transmitting unit is arranged close to the iron tower, and the vertical height of the pole holding antenna from the DME ground transmitting unit is more than 50 m; the DME ground transmitting unit comprises a transponder, a transmitter, a monitor and a switch matrix, wherein the transponder and the switch matrix are connected with the monitor, the transponder is connected with the transmitter, and the transmitter and the antenna feed module are connected with the switch matrix.
In the utility model, at least one pole-holding antenna is correspondingly arranged on each iron tower; the DME ground transmitting unit receives an interrogation signal transmitted by the aircraft through the pole holding antenna, generates a Gaussian pulse modulation signal according to the interrogation signal, and then transmits the Gaussian pulse modulation signal to the aircraft through the pole holding antenna.
The air route in the utility model is an airspace which is used for the airplane to fly on the air route and has a certain width. The flight route refers to the route of flight of the airplane and is also called an air traffic line. The air route of the airplane not only determines the specific direction, origin-destination point and transit-stop point of the airplane flight, but also specifies the width and flight height of the air route according to the requirements of air traffic control so as to maintain the air traffic order and ensure the flight safety. The utility model discloses an aircraft is through transmission, receiving a pair of signal, uses its self DME module to measure self slant distance to between the DME ground emission module.
Example 1:
the pole-embracing antenna is arranged on an iron tower along a navigation line. As shown in fig. 3, the pole embracing antenna of this embodiment includes 16 antenna elements 200 and an antenna feeding module 100, the antenna elements are preferably antenna columns, the antenna feeding module 100 equally divides the gaussian modulated pulse signal output by the transmitter 1 or the transmitter 2 into 16 paths, and sends the path to the 16 antenna columns, and each antenna column broadcasts the gaussian modulated pulse signal. When the pole-holding antenna is installed, the antenna feed module 100 is penetrated by the installation part, and the installation part is fixed on the iron tower so as to facilitate the installation of the pole-holding antenna on the iron tower. The mounting piece structure of this embodiment is not limited as long as the installation of embracing the pole antenna can be realized. The mounting member of this embodiment is preferably a rod-like member made of an insulating material.
In the embodiment, a transponder, a transmitter, a switch matrix, a monitor and an interface control module of a ground DME station are selected as a DME ground transmitting unit, and on the basis, a pole-embracing antenna is additionally arranged to realize the installation, operation and maintenance of ground equipment of the range finder.
The iron tower in the embodiment includes, but is not limited to, a communication iron tower and a power transmission line iron tower. The communication tower is a communication device for transmitting and transmitting microwave, ultrashort wave and wireless network signals, and consists of a tower body, a platform, a lightning rod, a ladder stand, an antenna support and other steel structural members. Before the tower body is installed, the iron tower foundation construction is generally performed. The iron tower foundation transmits all loads of upper structures such as the tower body and the ladder to the foundation and keeps the integral stability of the upper structures. The transmission line iron tower is a tower-shaped building for power transmission, the transmission line iron tower is a steel structure of various tower types, hot-rolled angle steel sections are mainly selected for the transmission line iron tower for a long time, a small number of steel pipes are used as tower materials, and the varieties of the steel materials mainly include Q235 and Q345.
This embodiment mainly utilizes the steel construction installation of iron tower to embrace pole antenna. Specifically, the pole-embracing antenna is installed on an antenna base, and the antenna base is fixed on an iron tower through an installation part. Preferably, a moisture-proof O-ring is provided on the antenna base, which is in contact with the antenna feed module 100 and is fixed to the antenna base by screws.
It should be noted that, the pole-embracing antenna of this embodiment is installed at a preset height according to actual needs, and the use of the iron tower itself cannot be influenced by the installation of the pole-embracing antenna. The pole-embracing antenna is connected with the DME ground transmitting unit, and the DME ground transmitting unit can be mounted under the feet of an iron tower and can also be suspended on the iron tower like the pole-embracing antenna.
Example 2:
based on the scheme disclosed in example 1, this example discloses the internal construction and operation of a DME ground launch unit.
The DME ground transmitting unit of the present embodiment receives an interrogation signal transmitted by an aircraft using a pole-embracing antenna, generates a gaussian pulse modulated signal according to the interrogation signal, and transmits the gaussian pulse modulated signal to the aircraft using the pole-embracing antenna.
The transmitter 1 and the transmitter 2 referred to in fig. 1 and 2 each contain a 100W power amplifier and a 1KW power amplifier. A front-end frequency conversion amplifying circuit, a power amplifier, a frequency synthesis circuit, a power conversion circuit, an interface conversion circuit, a power division circuit and a detection circuit are integrated in both a 100W power amplifier and a 1KW power amplifier. The power conversion circuit is connected with the interface conversion circuit, the interface conversion circuit is connected with the detection circuit, the power dividing circuit is connected with the detection circuit, the transmitter is connected with the front-end variable-frequency amplification circuit, the front-end variable-frequency amplification circuit is connected with the power amplifier, and the power amplifier is connected with the power dividing circuit.
The 100W power amplifier converts, amplifies and power amplifies an intermediate frequency 70MHz modulated signal into an L waveband radio frequency transmitting signal which is used as the input of a next-stage 1KW power amplifier, the 1KW power amplifier amplifies a L waveband radio frequency transmitting signal output by the 100W power amplifier to 1KW, the signal is coupled for detection, and when a fault is detected, the transmitter timely realizes self protection.
The radio frequency signal from the duplexer 1 or the duplexer 2 shown in fig. 1 and 2 is mixed 2 times to be converted into an intermediate frequency signal, and the intermediate frequency signal is amplified in an intermediate frequency linear amplifier and a logarithmic amplifier of the receiver 1 or the receiver 2, then is filtered, and then is output to the processor 1 or the processor 2. The pilot pulse signal passing through the duplexer 1 or the duplexer 2 is also sent to the receiver 1 or the receiver 2, and when the pilot pulse signal needs to be applied, a control switch of the pilot pulse signal is opened, the pilot pulse signal of the transmitting frequency is mixed to the receiving frequency, and the attenuation amount of the pilot pulse signal is controlled, and the pilot pulse signal and the normal inquiry signal are sent to the transponder together.
Fig. 1 and 2 relate to a duplexer 1 and a duplexer 2 each composed of a 50 Ω impedance strip and a plurality of rf switches, and the duplexer functions as a transceiver. Specifically, an inquiry signal received by the pole antenna from the aircraft is connected to the receiver, or a response signal output by the transmitter is sent to the pole antenna. While the duplexer 1 and the duplexer 2 have a function of blocking the transmission signal from entering the receiver. The radio frequency switch comprises a receiving and transmitting change-over switch, a high-power monitoring signal switch and a detection signal switch, wherein the receiving and transmitting change-over switch consists of a circulator and a switch. The high-power monitoring signal switch only sends a response signal to the monitor when a 1kW power amplifier is applied. The detection signal switch controls the transmission of the interrogation signal to either receiver 1 or receiver 2 and also sends a reply signal to the monitor when a 100W power amplifier is applied. It should be noted that, in general, the response signal is coupled and attenuated before being sent to the monitor.
The monitor 1 and the monitor 2 referred to in fig. 1 and 2 each comprise a frequency synthesis unit, an interrogator, a signal acquisition unit, a measurement circuit, a radio frequency switch and a CPU module. The frequency synthesis unit provides radio frequency continuous waves for the interrogator and the signal acquisition unit, and the interrogator generates standard interrogation signals under the control of the CPU module. The signal acquisition unit acquires signals, the signal acquisition unit comprises a wave detector, a high-speed A/D conversion circuit and a memory, and the wave detector, the high-speed A/D conversion circuit and the memory are sequentially connected. The measuring circuit is connected with the signal acquisition circuit, and the inquiry signal and the response signal pass through the detector, so that the measuring response delay of the measuring circuit can be eliminated. The radio frequency switch is connected with the measuring circuit, and the radio frequency switch completes switching of each signal so as to measure different signals by the measuring circuit. The CPU module controls the monitor to work normally and controls the working state of the whole equipment according to the monitoring data of the monitor. The monitor 1 and the monitor 2 are used for generating a monitoring inquiry signal and monitoring a Gaussian pulse modulation signal, the monitor 1 also sends the monitoring inquiry signal to the transponder 1, and the monitor 2 also sends the monitoring inquiry signal to the transponder 2.
The DME ground transmitter unit shown in fig. 2 further includes an interface control, the interface control is connected to the ground support subsystem, and the ground support subsystem is configured to set the operating parameters of the device, and receive or send the processing information and the alarm information of the operating state.
Example 3:
on the basis of the schemes disclosed in embodiment 1 and embodiment 2, the embodiment discloses a backup mode of tower-type distance meter ground equipment.
In this embodiment, the tower-type distance meter ground equipment adopts a dual-machine configuration, and one transponder is connected with an antenna and is called a working transponder; one way of the responder is connected with a load, and is called a backup responder. The pole embracing antenna receives the inquiry signal, the inquiry signal is sent to the working transponder through the switch matrix, the inquiry signal is amplified and mixed in a receiver of the working transponder to be converted into an intermediate frequency signal, the intermediate frequency signal is decoded and delayed by a processor of the working transponder, the intermediate frequency signal and various pulses generated by the processor generate trigger pulses according to a specified priority level, the trigger pulses are modulated and amplified in a transmitter corresponding to the working transponder to form a Gaussian modulation pulse signal meeting the requirement of ground equipment of the iron tower type distance measuring instrument, and the Gaussian modulation pulse signal is transmitted to a space through the switch matrix and the pole embracing antenna. In the switch matrix, the gaussian modulation pulse signal is coupled into three paths of signals, one path of signal is used for forming a guide pulse signal to complete the delay correction of the transponder, and the other two paths of signals are respectively sent to the monitor 1 and the monitor 2 shown in fig. 1 and fig. 2 for monitoring.
The dual-responder backup of the embodiment can select two working modes of cold backup and hot backup. Under cold backup, the backup transponder does not work completely, the ground support subsystem controls the backup transponder to be closed, the energy consumption is reduced, and the service life of ground equipment (hereinafter referred to as equipment) of the iron tower type distance meter is prolonged; under the hot backup, the backup responder works normally, the backup responder sends the output radio frequency response signal to the load, the responder change-over switch in the switch matrix can quickly complete the switching between the cold backup and the hot backup, and the double responders work in the cold backup state by default.
In order to ensure reliable service of the surface equipment, as shown in fig. 1 and 2, two independent monitors (monitor 1 and monitor 2) are built into the equipment, and the two monitors monitor the operation condition of the equipment in real time. The two monitors can transmit monitoring inquiry pulse to any transponder, the monitoring inquiry pulse is transmitted to the receiver 1 and the receiver 2 together with external inquiry signals through the duplexer, meanwhile, the monitor 1 can obtain response pulse through the duplexer 1, and the monitor 1 carries out real-time monitoring on the response pulse; the monitor 2 may also obtain the response pulse through the duplexer 2, and the monitor 2 monitors the response pulse in real time.
The ground support subsystem of this embodiment can support the 48V DC power supply of access, and the ground support subsystem mainly supplies power for transponder, transmitter, switch matrix, interface control and monitor.
The DME ground transmitting unit of the embodiment comprises two transponders, two transmitters, two monitors and a switch matrix; the DME ground transmitting unit is provided with two working units, and each working unit comprises a transponder, a transmitter and a monitor; both work units receive simultaneously the interrogation signal transmitted by the aircraft. When one working unit broadcasts the Gaussian pulse modulation signal through the pole-holding antenna, the other working unit sends the Gaussian pulse modulation signal to the load. The switch matrix is respectively connected with the transponder, the transmitter and the monitor; the switch matrix controls any one of the two working units to broadcast Gaussian pulse modulation signals to the pole-holding antenna.
Specifically, as shown in fig. 1 and fig. 2, the DME ground transmitting unit includes a transponder 1, a transmitter 1, a monitor 1, a transponder 2, a transmitter 2, a monitor 2 and a switch matrix, the transponder 1, the transmitter 1 and the monitor 1 are first working units, the transponder 2, the transmitter 2 and the monitor 2 are second working units, and the first working unit and the second working unit form a hot backup with each other. Wherein:
the transponder 1 and the transponder 2 are used for receiving the monitored interrogation signal and the interrogation signal of the aircraft, processing the interrogation signal and generating a response trigger pulse signal.
The transmitter 1 and the transmitter 2 are used to generate a gaussian pulse modulated signal in dependence on the reply trigger pulse signal. The hot backup process in this embodiment is: when the transmitter 1 of the first working unit broadcasts a Gaussian pulse modulation signal to the aircraft through the pole-holding antenna, the transmitter 2 of the second working unit sends the Gaussian pulse modulation signal to a load of the switch matrix; when the transmitter 2 of the second working unit broadcasts the gaussian pulse modulation signal to the aircraft through the pole-holding antenna, the transmitter 1 of the first working unit sends the gaussian pulse modulation signal to the load of the switch matrix.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides an iron tower formula distancer ground equipment which characterized in that includes: the ground transmitting unit comprises a holding pole antenna and a DME ground transmitting unit, wherein the holding pole antenna is connected with the DME ground transmitting unit, and the DME ground transmitting unit is communicated with the aircraft through the holding pole antenna; wherein:
the pole embracing antenna is arranged on an iron tower along a route, and comprises a plurality of antenna units and an antenna feed module, wherein the antenna units are arranged around the circumference of the antenna feed module, the antenna feed module is penetrated by an installation part, and the installation part is fixed on the iron tower;
the DME ground transmitting unit is installed close to an iron tower.
2. The range tower ground facility of claim 1, wherein the DME ground transmitter unit comprises two working units and a switch matrix, the switch matrix comprising a load;
the two working units receive an inquiry signal transmitted by the aircraft through the pole-holding antenna at the same time, and respectively process the inquiry signal and generate a Gaussian pulse modulation signal;
the two working units are controlled by the switch matrix, one of the two working units broadcasts a Gaussian pulse modulation signal to the aircraft through the pole-holding antenna, and the switch matrix controls the other working unit to send the Gaussian pulse modulation signal to a load.
3. Pylon rangefinder ground equipment according to claim 2, characterized in that each of the two working units comprises: a monitor, a transponder and a transmitter;
the monitor is connected with the transponder, and the transponder is connected with the transmitter;
the switch matrix simultaneously connects the monitor, the transponder and the transmitter.
4. The range tower ground device of claim 3, wherein the transponder comprises a receiver and a processor, the receiver is connected to the processor, the receiver sends the interrogation signal to the processor, the processor processes the interrogation signal and generates a response trigger pulse signal, and the transmitter generates the Gaussian pulse modulated signal according to the response trigger pulse signal.
5. The tower-type rangefinder ground equipment of claim 4, wherein the transmitter comprises a 100W power amplifier and a 1KW power amplifier, the 100W power amplifier is connected with the 1KW power amplifier, and the processor is connected with the 100W power amplifier;
and the response trigger pulse signal generated by the processor is amplified by a 100W power amplifier and a 1KW power amplifier in sequence and then sent to the pole-embracing antenna.
6. The tower rangefinder ground equipment of claim 3, wherein the switch matrix comprises two duplexers, a transponder transfer switch, and a load, the two duplexers being connected to the transponder transfer switch, the load being connected to the transponder transfer switch;
the two duplexers are respectively connected with a working unit, the transponder change-over switch controls the working unit to broadcast the Gaussian pulse modulation signal to the pole-embracing antenna, and the other working unit sends the Gaussian pulse modulation signal to a load.
7. The tower-type range finder ground device of claim 1, wherein the pole-embracing antenna has 16 antenna elements, and the antenna feed module is connected to the 16 antenna elements simultaneously.
8. The range tower ground equipment of claim 3, wherein the transponder receives and processes both the interrogation signal monitored by the monitor and the interrogation signal transmitted by the aircraft, and further generates a response trigger pulse signal based on both interrogation signals;
the transmitter generates a Gaussian pulse modulation signal according to the response trigger pulse signal, and broadcasts the Gaussian pulse modulation signal to the aircraft through the pole holding antenna;
the monitor is used for generating a monitoring inquiry signal and monitoring the Gaussian pulse modulation signal, and the monitor also sends the monitoring inquiry signal to the transponder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021049347.2U CN211014634U (en) | 2020-06-10 | 2020-06-10 | Iron tower type distance measuring instrument ground equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021049347.2U CN211014634U (en) | 2020-06-10 | 2020-06-10 | Iron tower type distance measuring instrument ground equipment |
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| CN211014634U true CN211014634U (en) | 2020-07-14 |
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Effective date of registration: 20220824 Address after: 1st Floor, Rear Building, Office Building, Caotang Technology Industrial Base, Xi'an City, Shaanxi Province 710000 Patentee after: CETC Xinghe Beidou Technology (Xi'an) Co.,Ltd. Address before: No.1 Baisha Road, Yanta District, Xi'an City, Shaanxi Province Patentee before: ZHONGDIANKE NORTHWEST GROUP Co.,Ltd. |
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