CN215990800U - Satellite signal forwarding equipment - Google Patents
Satellite signal forwarding equipment Download PDFInfo
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- CN215990800U CN215990800U CN202122667751.7U CN202122667751U CN215990800U CN 215990800 U CN215990800 U CN 215990800U CN 202122667751 U CN202122667751 U CN 202122667751U CN 215990800 U CN215990800 U CN 215990800U
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Abstract
The utility model discloses a satellite signal forwarding device, which can simultaneously receive Beidou navigation satellite signals and GPS navigation satellite signals, thereby realizing the forwarding of multi-system satellite navigation signals and further realizing the multi-system satellite combined navigation of airborne equipment; meanwhile, the utility model is also provided with an S-band transceiving antenna, a UHF-band transceiving antenna, a Beidou short message transceiving antenna and a fixed-frequency transceiving antenna, so that the two-way communication between the airborne equipment and the satellite can be realized based on the S-band signal, the UHF-band signal, the Beidou short message, the Ka-band signal and/or the Ku-band signal; therefore, the multi-system navigation satellite signal and the multi-band satellite signal can be simultaneously forwarded, the uplink satellite signal and the downlink satellite signal can be simultaneously forwarded, the forwarding function is remarkably improved, and the satellite communication and navigation function test and maintenance of airborne equipment can be met.
Description
Technical Field
The utility model belongs to the technical field of satellite signal forwarding, and particularly relates to a satellite signal forwarding device.
Background
With the rapid development of satellite positioning and satellite navigation technologies, the production, test and maintenance processes of airborne satellite navigation and communication equipment all rely on the coverage of multi-frequency satellite signals, and in order to ensure that the airborne navigation equipment and the communication equipment can receive high-quality satellite signals, the satellite signals need to be forwarded through multi-frequency signal forwarding equipment, namely, a satellite forwarding system can forward satellite signals of different frequency bands of a plurality of satellite systems, so as to ensure the coverage rate of the navigation equipment and the communication equipment for receiving signals, and thus the airborne communication and the test of navigation functions are realized.
However, the conventional satellite signal forwarding system can only forward a single satellite signal from a satellite to airborne equipment, has a single function, and cannot meet the test of the conventional satellite communication and navigation functions; therefore, it is urgent to provide a satellite signal repeater supporting multi-band, multi-system, and bi-directional communication functions.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide satellite signal forwarding equipment to solve the problem that the existing satellite signal forwarding equipment can only forward a single satellite signal from a satellite to airborne equipment, so that the function is single.
In order to achieve the purpose, the utility model adopts the following technical scheme:
in a first aspect, the present invention provides a satellite signal forwarding apparatus, including: the system comprises an outdoor antenna unit, an indoor antenna unit and a signal forwarding control unit;
the outdoor antenna unit comprises a Beidou navigation receiving antenna, a GPS navigation receiving antenna, an S-frequency-band outdoor receiving and transmitting antenna and a UHF-frequency-band outdoor receiving and transmitting antenna;
the indoor antenna unit comprises a Beidou navigation transmitting antenna, a GPS navigation transmitting antenna, an S-frequency-band indoor receiving and transmitting antenna and a UHF-frequency-band indoor receiving and transmitting antenna;
the signal forwarding control unit comprises a Beidou forwarding control module, a GPS forwarding control module, an S frequency band forwarding control module and a UHF frequency band forwarding control module;
the Beidou navigation receiving antenna is in communication connection with the Beidou navigation transmitting antenna through the Beidou transmitting control module, and a Beidou satellite navigation signal is transmitted to the airborne satellite navigation receiver through the Beidou navigation transmitting antenna;
the GPS navigation receiving antenna is in communication connection with the GPS navigation transmitting antenna through the GPS forwarding control module, and GPS satellite navigation signals are forwarded to the airborne satellite navigation receiver through the GPS navigation transmitting antenna;
the S-band outdoor transceiving antenna is in communication connection with the S-band indoor transceiving antenna through the S-band forwarding control module, and transmits an S-band signal of an outdoor communication satellite to the airborne satellite communication receiver or transmits the S-band signal of the airborne satellite communication transmitter to the outdoor communication satellite;
the UHF frequency band outdoor receiving and transmitting antenna is in communication connection with the UHF frequency band indoor receiving and transmitting antenna through the UHF frequency band forwarding control module, and transmits UHF frequency band signals of an outdoor communication satellite to the airborne satellite communication receiver or transmits the UHF frequency band signals of the airborne satellite communication transmitter to the outdoor communication satellite.
Based on the disclosure, the utility model can simultaneously receive Beidou navigation satellite signals and GPS navigation satellite signals, thereby realizing the forwarding of multi-system satellite navigation signals and further realizing the multi-system satellite combined navigation of airborne equipment; meanwhile, the utility model is also provided with an S-band and UHF-band receiving and transmitting antenna, so that the two-way communication between the airborne equipment and the satellite can be realized based on the S-band and UHF-band signals; therefore, the multi-system satellite signal repeater can simultaneously repeat multi-system navigation satellite signals and satellite signals in S frequency band and UHF frequency band, can simultaneously repeat uplink satellite signals and downlink satellite signals, remarkably improves the repeating function, and can meet the requirements of testing and maintaining the satellite communication and navigation functions of airborne equipment.
In one possible design, the Beidou transmitting control module and the GPS transmitting control module respectively comprise: the first noise amplifier, the first link compensation amplifier and the first gain control module are electrically connected in sequence;
for the Beidou transmitting control module, the input end of the first noise amplifier serves as the input end of the Beidou transmitting control module, the Beidou navigation receiving antenna is electrically connected, the output end of the first gain control module serves as the output end of the Beidou transmitting control module, and the Beidou navigation transmitting antenna is electrically connected.
Based on the disclosure, the utility model realizes the link compensation and the gain control of the satellite signal by using the first noise amplifier, the first link compensation amplifier and the first gain control module, and can ensure the stability of satellite signal forwarding.
In one possible design, the first gain control module includes: isolator, amplifier, numerical control attenuator, wave filter and the wave detector that connects gradually the electricity, wherein, the input of isolator is regarded as the input of first gain control module, the electricity is connected the output of first link compensation amplifier, the output of wave detector is regarded as the output of first gain control module, the electricity is connected big dipper navigation transmitting antenna.
In one possible design, the Beidou forwarding control module and the GPS forwarding control module further include: the first state monitoring module is electrically connected with the first gain control module and used for displaying the signal state of the Beidou satellite navigation signal or the GPS satellite navigation signal.
Based on the above disclosure, by setting the first state monitoring module, the signal states of the Beidou satellite navigation signal and the GPS satellite navigation signal can be displayed in real time, so that maintenance personnel can conveniently master the forwarding state of the satellite signal in real time, and the convenience and reliability of satellite communication and navigation test of airborne equipment are improved.
In one possible design, the S-band forwarding control module and the UHF-band forwarding control module each include: an uplink forwarding unit and a downlink forwarding unit;
for the S-band forwarding control module, the S-band outdoor transceiving antenna is in communication connection with the S-band indoor transceiving antenna through the uplink forwarding unit, and an S-band signal of an outdoor communication satellite is forwarded to the airborne satellite communication receiver through the S-band indoor transceiving antenna;
the S-band indoor transceiving antenna is in communication connection with the S-band outdoor transceiving antenna through the downlink forwarding unit, and an S-band signal of the airborne satellite communication transmitter is sent to an outdoor communication satellite through the S-band outdoor transceiving antenna.
Based on the above disclosure, the uplink forwarding unit is utilized to forward signals in the S frequency band and the UHF frequency band to the airborne satellite communication receiver; similarly, the downlink forwarding unit is used for forwarding the S-band signal and the UHF-band signal to the outdoor communication satellite, so that the uplink satellite signal and the downlink satellite signal can be simultaneously forwarded.
In one possible design, the uplink forwarding unit includes: the second noise amplifier, the second link compensation amplifier and the second gain control module are electrically connected in sequence;
for the S-band forwarding control module, the input end of the second noise amplifier is used as the input end of the uplink forwarding unit, and is electrically connected to the S-band outdoor transceiving antenna, and the output end of the second gain control module is used as the output end of the uplink forwarding unit, and is electrically connected to the S-band indoor transceiving antenna.
In one possible design, the downlink forwarding unit includes: the third gain control module and the power amplifier are electrically connected in sequence;
for the S-band forwarding control module, an input end of the third gain control module is used as an input end of the downlink forwarding unit, and is electrically connected to the S-band indoor transceiving antenna, and an output end of the power amplifier is used as an output end of the downlink forwarding unit and is electrically connected to the S-band outdoor transceiving antenna.
In one possible design, the outdoor antenna unit further includes: the indoor antenna unit further comprises a Beidou short message indoor transceiving antenna and a fixed frequency band indoor transceiving antenna, and the signal forwarding control unit further comprises a Beidou short message forwarding control module and a fixed frequency band forwarding control module, wherein the fixed frequency band outdoor transceiving antenna and the fixed frequency band indoor transceiving antenna are used for transceiving Ka frequency band signals or Ku frequency band signals;
the Beidou short message outdoor receiving and transmitting antenna is in communication connection with the Beidou short message indoor receiving and transmitting antenna through the Beidou short message forwarding control module, and the fixed frequency band outdoor receiving and transmitting antenna is in communication connection with the fixed frequency band indoor receiving and transmitting antenna through the fixed frequency band forwarding control module.
Based on the disclosure, the utility model can also simultaneously receive Beidou short message satellite signals, Ka frequency band signals and Ku frequency band signals; therefore, the signal forwarding function of the forwarding equipment can be further improved, and the forwarding equipment can support the forwarding of the multi-band signal.
In a possible design, the signal forwarding control unit further includes a display control module, wherein the display control module is electrically connected to the beidou forwarding control module, the GPS forwarding control module, the S-band forwarding control module, and the UHF-band forwarding control module, respectively.
Based on the above disclosure, by setting the display control module, the working state of each forwarding control module can be displayed in real time, so that the working state of the forwarding equipment can be displayed, and maintenance personnel can conveniently check the working state.
In one possible design, the Beidou navigation receiving antenna, the GPS navigation receiving antenna, the Beidou navigation transmitting antenna and the GPS navigation transmitting antenna all adopt single-point feed circularly polarized microstrip antennas;
the S-band outdoor transceiving antenna, the S-band indoor transceiving antenna, the UHF-band outdoor transceiving antenna and the UHF-band indoor transceiving antenna all adopt crossed dipole antennas.
Based on the disclosure, the single-point feed circularly polarized microstrip antenna has the advantages of simple structure and no need of orthogonal feed networks such as a power divider, a phase shifter and the like, and can reduce the manufacturing cost while ensuring the receiving performance; the cross dipole antenna has the advantages of no need of a phase shift circuit and simple structure of a feed network, so that the manufacturing cost of the antenna can be reduced.
Drawings
Fig. 1 is a schematic structural diagram of a satellite signal forwarding device provided by the present invention.
Fig. 2 is a schematic structural diagram of an outdoor antenna unit provided by the present invention.
Fig. 3 is a schematic structural diagram of an indoor antenna unit according to the present invention.
Fig. 4 is a schematic structural diagram of a signal forwarding control unit provided by the present invention.
Fig. 5 is a schematic structural diagram of a Beidou forwarding control module provided by the utility model.
Fig. 6 is a schematic circuit diagram of a first gain control module provided by the present invention.
Fig. 7 is a schematic structural diagram of an S-band forwarding control module provided in the present invention.
Fig. 8 is a schematic structural diagram of a UHF-band forwarding control module provided in the present invention.
Detailed Description
The utility model is further described with reference to the following figures and specific embodiments. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the utility model. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.
Examples
As shown in fig. 1 to 8, the satellite signal forwarding device provided in this embodiment can simultaneously receive a Beidou navigation satellite signal and a GPS (Global Positioning System) navigation satellite signal, so as to realize forwarding of a multi-System satellite navigation signal, and further enable an airborne device to realize multi-System satellite combined navigation; meanwhile, the utility model is also provided with an S-band transceiving antenna, a UHF-band transceiving antenna, a Beidou short message transceiving antenna and a fixed-frequency transceiving antenna, so that the two-way communication between the airborne equipment and the satellite can be realized based on an S-band signal (the frequency range of electromagnetic waves is 2-4 GHz), an UHF-band signal (an ultrahigh frequency band, which refers to radio waves with the wavelength range of 1 m-1 dm and the frequency of 300-3000 MHz), a Beidou short message, a Ka-band signal (the frequency range of 26.5-40GHz electromagnetic waves) and/or a Ku-band signal (which refers to a band lower than the frequency of the K band under the IEEE 521-2002 standard, wherein the KU band usually has the downlink frequency of 10.7-12.75 GHz and the uplink frequency of 12.75-18.1 GHz); therefore, the multi-system navigation satellite signal and the multi-band satellite signal can be simultaneously forwarded, the uplink satellite signal and the downlink satellite signal can be simultaneously forwarded, the forwarding function is remarkably improved, and the requirements of testing and maintaining the satellite communication and navigation functions of airborne equipment can be met.
As shown in fig. 1, the satellite signal forwarding device provided in the first aspect of this embodiment may include, but is not limited to, an outdoor antenna unit, an indoor antenna unit, and a signal forwarding control unit; the outdoor antenna unit and the indoor antenna unit realize the receiving and sending of satellite signals, and the signal forwarding control unit is used as a main control unit to complete the forwarding of the satellite signals, namely, the satellite signals are forwarded to the airborne satellite navigation receiver or the airborne satellite communication receiver, and the satellite signals are forwarded to the outdoor communication satellite.
As shown in fig. 2 and fig. 3, in the present embodiment, for example, the outdoor antenna unit may include, but is not limited to, a beidou navigation receiving antenna, a GPS navigation receiving antenna, an S-band outdoor transceiving antenna, and a UHF-band outdoor transceiving antenna; the indoor antenna unit may include, but is not limited to, a beidou navigation transmitting antenna, a GPS navigation transmitting antenna, an S-band indoor transmitting and receiving antenna, and a UHF-band indoor transmitting and receiving antenna.
Correspondingly, after the forwarding device is provided with the antennas of the foregoing frequency bands and systems, the signal forwarding control unit is also provided with a corresponding signal forwarding control module, as shown in fig. 4, the signal forwarding control unit may include, but is not limited to: the system comprises a Beidou forwarding control module, a GPS forwarding control module, an S frequency band forwarding control module and a UHF frequency band forwarding control module.
Therefore, the Beidou navigation receiving antenna can be in communication connection with the Beidou navigation transmitting antenna through the Beidou transmitting control module, so that a Beidou satellite navigation signal is transmitted to the airborne satellite navigation receiver through the Beidou navigation transmitting antenna, and navigation is realized based on a Beidou satellite; similarly, the GPS navigation receiving antenna can be in communication connection with the GPS navigation transmitting antenna through the GPS forwarding control module, so that the GPS satellite navigation signal is forwarded to the airborne satellite navigation receiver through the GPS navigation transmitting antenna, and navigation is realized based on the GPS satellite.
Through the design, the forwarding equipment provided by the embodiment can simultaneously receive the Beidou navigation satellite signals and the GPS navigation satellite signals, so that forwarding of the multi-system satellite navigation signals can be realized, and further multi-system satellite combined navigation is realized.
Meanwhile, in the embodiment, the multi-band satellite signals are transmitted and received by means of the S-band transmitting and receiving antenna (i.e., the S-band indoor and outdoor transmitting and receiving antennas) and the UHF-band receiving antenna (i.e., the UHF-band indoor and outdoor transmitting and receiving antennas), that is, the S-band outdoor transmitting and receiving antenna is in communication connection with the S-band indoor transmitting and receiving antenna through the S-band forwarding control module, so that the S-band signals of the outdoor communication satellite are forwarded to the airborne satellite communication receiver or the S-band signals of the airborne satellite communication transmitter are sent to the outdoor communication satellite; and the UHF frequency range outdoor receiving and transmitting antenna is in communication connection with the UHF frequency range indoor receiving and transmitting antenna through the UHF frequency range forwarding control module, so that UHF frequency range signals of an outdoor communication satellite are forwarded to the airborne satellite communication receiver or the UHF frequency range signals of the airborne satellite communication transmitter are sent to the outdoor communication satellite.
In this embodiment, for example, the beidou navigation receiving antenna, the GPS navigation receiving antenna, the beidou navigation transmitting antenna and the GPS navigation transmitting antenna may be, but are not limited to, single-point feed circularly polarized microstrip antennas; the single-feed-point circular polarization microstrip antenna has the advantages of simple structure and no need of orthogonal feed networks such as a power divider, a phase shifter and the like, so that the manufacturing cost can be reduced while the performance is ensured; meanwhile, in this embodiment, the antenna may be, but is not limited to, a coaxial probe backfeed mode, and the bandwidth of the antenna is improved by coupling the double-layer radiation patches; therefore, the problem of complex feed network caused by a multi-point feed mode or a gap coupling feed mode can be avoided.
For example, the S-band outdoor transmitting and receiving antenna, the S-band indoor transmitting and receiving antenna, the UHF-band outdoor transmitting and receiving antenna, and the UHF-band indoor transmitting and receiving antenna may be, but not limited to, cross dipole antennas, specifically, cross dipole antennas, which are a relatively common antenna form, may be used, and have a circular polarization radiation characteristic, and do not require a phase shift circuit and a multi-feed-point manner, and have an advantage of a simple feed network structure; meanwhile, the cross dipole antenna is directly fed by a coaxial line, left-handed or right-handed circular polarization characteristics can be realized by selecting two pairs of dipoles with different lengths and utilizing different placement methods of the two pairs of dipoles relative to a feeding point, and directional patterns with different lobe widths can be realized or directional pattern shaping design can be realized by adjusting the distance between the dipoles and the ground.
Therefore, through the design, the forwarding device provided by the embodiment can realize the forwarding of the multi-system satellite navigation signal and the multi-band signal, and can simultaneously realize the uplink and downlink sending of the multi-band signal, and the forwarding function of the forwarding device is obviously improved compared with that of the traditional forwarding device.
A second aspect of this embodiment provides a specific structure of each forwarding control module in the first aspect of this embodiment:
as shown in fig. 5, one of the following structures of the beidou forwarding control module and the GPS forwarding control module is provided:
in this embodiment, the big dipper forwards that control module and GPS forward that control module's component structure is the same, all includes: the first noise amplifier, the first link compensation amplifier and the first gain control module are electrically connected in sequence, namely, the Beidou satellite navigation signal and the GPS satellite navigation signal realize link compensation and gain control through the corresponding forwarding control module, and finally, the Beidou satellite navigation signal and the GPS satellite navigation signal are forwarded to the airborne satellite navigation receiver from the corresponding transmitting antenna.
The following description specifically explains the beidou forwarding control module as an example:
the input end of the first noise amplifier is used as the input end of the Beidou transmitting control module, and is electrically connected with the Beidou navigation receiving antenna to be used as a preamplifier of the Beidou transmitting control module so as to improve the signal-to-noise ratio of the Beidou satellite navigation signal; of course, the first noisy amplifier employs a low noise amplifier.
The Beidou satellite navigation signals passing through the first noise amplifier sequentially pass through the first link compensation amplifier to be subjected to link compensation, pass through the first gain control module to be subjected to gain control, and finally are output to the Beidou navigation transmitting antenna, namely the output end of the first gain control module serves as the output end of the Beidou forwarding control module, and the Beidou navigation transmitting antenna is electrically connected with the airborne satellite navigation receiver.
In the embodiment, the gain of the first noise amplifier is designed to be 40 +/-2 dB, and the noise coefficient is controlled to be less than or equal to 1.5 dB; meanwhile, a cavity filter with high suppression capability, a multi-stage low-noise amplifier tube, an anti-burning circuit, a lightning protection circuit and the like are designed in the first noise amplifier, so that the function of improving the signal-to-noise ratio of the signal is achieved.
In this embodiment, the link compensation gain of the first link compensation amplifier is, for example, 80 ± 2dB, and may be, but is not limited to, composed of a filter and an amplifier tube.
Referring to fig. 6, in the present embodiment, the first gain control module may include, but is not limited to: the isolator, the amplifier, the numerical control attenuator, the filter and the detector are electrically connected in sequence; the input of isolator is as the input of first gain control module promptly, the output of first link offset amplifier is connected to the electricity, thereby realize the input of big dipper satellite navigation signal, and big dipper satellite navigation signal passes through the isolator in proper order and keeps apart, the amplifier is enlargied, the gain adjustment of numerical control attenuator, filter filtering and detector are examined the back, can realize the gain control of 0 ~ 60db scope, also be exactly the output of detector as the output of first gain control module, the big dipper navigation transmitting antenna is connected to the electricity, thereby realize forwardding of big dipper navigation transmitting antenna.
Therefore, through the detailed explanation of the Beidou forwarding control module, the Beidou satellite navigation signals can be sequentially amplified, the signal to noise ratio of the Beidou satellite navigation signals is improved, and link compensation and gain control are performed on the Beidou satellite navigation signals, so that the signal forwarding function is completed.
In addition, in this embodiment, for real time monitoring big dipper retransmission control module and GPS retransmission control module, still be provided with first state monitoring module in corresponding retransmission control module, wherein, first gain control module is connected to first state monitoring module electricity, from this, can read big dipper satellite navigation signal and GPS satellite navigation signal in real time to show the signal state of big dipper satellite navigation signal or GPS satellite navigation signal in real time, the maintainer of being convenient for looks over.
In this embodiment, the forwarding principle and the composition structure of the GPS forwarding control module are consistent with those of the Beidou forwarding control module, which is not described herein again.
As shown in fig. 7 and 8, one specific structure of the S-band forwarding control module and the UHF-band forwarding control module is provided as follows:
in this embodiment, the S-band forwarding control module and the UHF-band forwarding control module have the same circuit structure, and both include an uplink forwarding unit and a downlink forwarding unit, that is, the uplink forwarding unit is used to implement signal transmission from the outdoor communication satellite to the airborne communication receiver, and the downlink forwarding unit is used to implement signal transmission from the airborne communication transmitter to the outdoor communication satellite; therefore, bidirectional communication between the airborne equipment and the satellite and simultaneous forwarding of the uplink satellite signal and the downlink satellite signal can be realized.
Taking an S-band forwarding control module as an example, a forwarding process of uplink and downlink satellite signals is explained:
in an uplink, the S-band outdoor transceiving antenna is in communication connection with the S-band indoor transceiving antenna through the uplink forwarding unit, and S-band signals of an outdoor communication satellite are forwarded to the airborne satellite communication receiver through the S-band indoor transceiving antenna, so that forwarding of uplink satellite signals is achieved.
Similarly, in the downlink, the S-band indoor transceiving antenna is in communication connection with the S-band outdoor transceiving antenna through the downlink forwarding unit, and the S-band signal of the airborne satellite communication transmitter is sent to the outdoor communication satellite through the S-band outdoor transceiving antenna, so that forwarding of the downlink satellite signal is realized.
Referring to fig. 7, the following provides a specific structure of the uplink forwarding unit and the downlink forwarding unit:
or take the S-band forwarding control module as an example:
in this embodiment, the uplink forwarding unit may include, but is not limited to: the principle, the structure and the function of each electronic device are consistent with those of the Beidou transmitting control module, and link compensation and gain control are realized.
The input end of the second noise amplifier is used as the input end of the uplink forwarding unit, is electrically connected with the S-band outdoor transceiving antenna and is used as a preamplifier of the S-band forwarding control module to improve the signal-to-noise ratio of the S-band signal; of course, the second noisy amplifier also employs a low noise amplifier.
The S-band signal passing through the second noise amplifier sequentially passes through the second link compensation amplifier for link compensation and the second gain control module for gain control, and is finally output to the S-band indoor transceiving antenna, namely, the output end of the second gain control module is used as the output end of the uplink forwarding unit and is electrically connected with the S-band indoor transceiving antenna, so that the S-band signal is issued.
Referring to fig. 7, an example downlink forwarding unit may include, but is not limited to: the third gain control module and the power amplifier are electrically connected in sequence, namely the input end of the third gain control module is used as the input end of the downlink forwarding unit and is electrically connected with the S-band indoor transceiving antenna, the output end of the power amplifier is used as the output end of the downlink forwarding unit and is electrically connected with the S-band outdoor transceiving antenna, and therefore the uploading of S-band signals of the airborne satellite communication transmitter is achieved.
Therefore, through the detailed description of the uplink forwarding unit and the downlink forwarding unit, the two-way communication between the airborne equipment and the satellite and the simultaneous forwarding of the uplink satellite signal and the downlink satellite signal can be realized, so that the forwarding function of the forwarding equipment is improved.
Certainly, the circuit structure of the UHF-band forwarding control module is consistent with that of the S-band forwarding control module, which is not described herein.
Referring to fig. 1, fig. 2 and fig. 3, in the third aspect of the present embodiment, on the basis of the first aspect and the second aspect of the present embodiment, further optimization is performed to further improve the forwarding function of the third aspect of the present embodiment, and the following settings are set:
the example outdoor antenna unit is further provided with: big dipper short message outdoor receiving and dispatching antenna and fixed frequency channel outdoor receiving and dispatching antenna.
Correspondingly, the indoor antenna unit is correspondingly provided with: the Beidou short message indoor transmitting and receiving antenna comprises a Beidou short message indoor transmitting and receiving antenna and a fixed frequency band indoor transmitting and receiving antenna, wherein the fixed frequency band outdoor transmitting and receiving antenna and the fixed frequency band indoor transmitting and receiving antenna are used for transmitting and receiving Ka frequency band signals or Ku frequency band signals.
Correspondingly, the signal forwarding control unit is also correspondingly provided with: the Beidou short message forwarding control module and the fixed frequency band forwarding control module are adopted, namely the Beidou short message outdoor receiving and transmitting antenna is in communication connection with the Beidou short message indoor receiving and transmitting antenna through the Beidou short message forwarding control module, so that the uploading and the issuing of Beidou short message satellite signals are realized; similarly, the fixed-frequency-band outdoor transceiving antenna is in communication connection with the fixed-frequency-band indoor transceiving antenna through the fixed-frequency-band forwarding control module, so that the uploading and the issuing of the Ka frequency band signal or the Ku frequency band signal are realized.
Through the design, the Beidou short message satellite signal, the Ka frequency band signal and the Ku frequency band signal can be received at the same time; therefore, the signal forwarding function of the forwarding equipment can be further improved, and the forwarding equipment can support the forwarding of the multi-band signal.
In this embodiment, the circuit structures of the big dipper short message forwarding control module and the fixed frequency band forwarding control module are consistent with the circuit structure of the aforementioned S frequency band forwarding control module, which is not described herein.
In addition, this embodiment still is provided with the display control module, and the display control module electricity respectively connects big dipper promptly and forwards control module, GPS and forwards control module, S frequency channel and forwards control module, UHF frequency channel and forwards control module, big dipper short message and forwards control module and fixed frequency channel and forward control module to obtain the working data of each control module that forwards in real time, with the operating condition that shows each control module that forwards in real time, so that the maintainer looks over.
Of course, in this embodiment, the forwarding device is further provided with a power supply module, wherein the power supply module can, but is not limited to, supply power by using 220V ac power.
Finally, it should be noted that: the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An apparatus for repeating a satellite signal, comprising: the system comprises an outdoor antenna unit, an indoor antenna unit and a signal forwarding control unit;
the outdoor antenna unit comprises a Beidou navigation receiving antenna, a GPS navigation receiving antenna, an S-frequency-band outdoor receiving and transmitting antenna and a UHF-frequency-band outdoor receiving and transmitting antenna;
the indoor antenna unit comprises a Beidou navigation transmitting antenna, a GPS navigation transmitting antenna, an S-frequency-band indoor receiving and transmitting antenna and a UHF-frequency-band indoor receiving and transmitting antenna;
the signal forwarding control unit comprises a Beidou forwarding control module, a GPS forwarding control module, an S frequency band forwarding control module and a UHF frequency band forwarding control module;
the Beidou navigation receiving antenna is in communication connection with the Beidou navigation transmitting antenna through the Beidou transmitting control module, and a Beidou satellite navigation signal is transmitted to the airborne satellite navigation receiver through the Beidou navigation transmitting antenna;
the GPS navigation receiving antenna is in communication connection with the GPS navigation transmitting antenna through the GPS forwarding control module, and GPS satellite navigation signals are forwarded to the airborne satellite navigation receiver through the GPS navigation transmitting antenna;
the S-band outdoor transceiving antenna is in communication connection with the S-band indoor transceiving antenna through the S-band forwarding control module, and transmits an S-band signal of an outdoor communication satellite to the airborne satellite communication receiver or transmits the S-band signal of the airborne satellite communication transmitter to the outdoor communication satellite;
the UHF frequency band outdoor receiving and transmitting antenna is in communication connection with the UHF frequency band indoor receiving and transmitting antenna through the UHF frequency band forwarding control module, and transmits UHF frequency band signals of an outdoor communication satellite to the airborne satellite communication receiver or transmits the UHF frequency band signals of the airborne satellite communication transmitter to the outdoor communication satellite.
2. The apparatus for forwarding satellite signals according to claim 1, wherein the Beidou forwarding control module and the GPS forwarding control module respectively comprise: the first noise amplifier, the first link compensation amplifier and the first gain control module are electrically connected in sequence;
for the Beidou transmitting control module, the input end of the first noise amplifier serves as the input end of the Beidou transmitting control module, the Beidou navigation receiving antenna is electrically connected, the output end of the first gain control module serves as the output end of the Beidou transmitting control module, and the Beidou navigation transmitting antenna is electrically connected.
3. The apparatus for repeating a satellite signal according to claim 2, wherein said first gain control module comprises: isolator, amplifier, numerical control attenuator, wave filter and the wave detector that connects gradually the electricity, wherein, the input of isolator is regarded as the input of first gain control module, the electricity is connected the output of first link compensation amplifier, the output of wave detector is regarded as the output of first gain control module, the electricity is connected big dipper navigation transmitting antenna.
4. The apparatus for forwarding satellite signals according to claim 2, wherein said beidou forwarding control module and said GPS forwarding control module further comprise: the first state monitoring module is electrically connected with the first gain control module and used for displaying the signal state of the Beidou satellite navigation signal or the GPS satellite navigation signal.
5. The apparatus for forwarding satellite signals according to claim 1, wherein the S-band forwarding control module and the UHF-band forwarding control module each comprise: an uplink forwarding unit and a downlink forwarding unit;
for the S-band forwarding control module, the S-band outdoor transceiving antenna is in communication connection with the S-band indoor transceiving antenna through the uplink forwarding unit, and an S-band signal of an outdoor communication satellite is forwarded to the airborne satellite communication receiver through the S-band indoor transceiving antenna;
the S-band indoor transceiving antenna is in communication connection with the S-band outdoor transceiving antenna through the downlink forwarding unit, and an S-band signal of the airborne satellite communication transmitter is sent to an outdoor communication satellite through the S-band outdoor transceiving antenna.
6. The apparatus for repeating a satellite signal according to claim 5, wherein said uplink repeating unit comprises: the second noise amplifier, the second link compensation amplifier and the second gain control module are electrically connected in sequence;
for the S-band forwarding control module, the input end of the second noise amplifier is used as the input end of the uplink forwarding unit, and is electrically connected to the S-band outdoor transceiving antenna, and the output end of the second gain control module is used as the output end of the uplink forwarding unit, and is electrically connected to the S-band indoor transceiving antenna.
7. The apparatus for repeating a satellite signal according to claim 5, wherein said downlink repeating unit comprises: the third gain control module and the power amplifier are electrically connected in sequence;
for the S-band forwarding control module, an input end of the third gain control module is used as an input end of the downlink forwarding unit, and is electrically connected to the S-band indoor transceiving antenna, and an output end of the power amplifier is used as an output end of the downlink forwarding unit and is electrically connected to the S-band outdoor transceiving antenna.
8. The apparatus for repeating satellite signals according to claim 1, wherein said outdoor antenna unit further comprises: the indoor antenna unit further comprises a Beidou short message indoor transceiving antenna and a fixed frequency band indoor transceiving antenna, and the signal forwarding control unit further comprises a Beidou short message forwarding control module and a fixed frequency band forwarding control module, wherein the fixed frequency band outdoor transceiving antenna and the fixed frequency band indoor transceiving antenna are used for transceiving Ka frequency band signals or Ku frequency band signals;
the Beidou short message outdoor receiving and transmitting antenna is in communication connection with the Beidou short message indoor receiving and transmitting antenna through the Beidou short message forwarding control module, and the fixed frequency band outdoor receiving and transmitting antenna is in communication connection with the fixed frequency band indoor receiving and transmitting antenna through the fixed frequency band forwarding control module.
9. The forwarding device of satellite signal according to claim 1, wherein said signal forwarding control unit further comprises a display control module, wherein said display control module is electrically connected to said big dipper forwarding control module, said GPS forwarding control module, said S-band forwarding control module and said UHF-band forwarding control module, respectively.
10. The apparatus for forwarding satellite signals according to claim 1, wherein the beidou navigation receiving antenna, the GPS navigation receiving antenna, the beidou navigation transmitting antenna and the GPS navigation transmitting antenna all use single-point feeding circularly polarized microstrip antennas;
the S-band outdoor transceiving antenna, the S-band indoor transceiving antenna, the UHF-band outdoor transceiving antenna and the UHF-band indoor transceiving antenna all adopt cross dipole antennas.
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| CN202122667751.7U CN215990800U (en) | 2021-11-02 | 2021-11-02 | Satellite signal forwarding equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116667913A (en) * | 2023-07-31 | 2023-08-29 | 河北北斗天汇科技有限公司 | Ultra-long-distance Beidou satellite navigation signal forwarding method, forwarding device and system |
| CN117081660A (en) * | 2023-10-12 | 2023-11-17 | 齐鲁卫星技术(山东)有限责任公司 | Wide-beam hidden transmitting platform for synchronous orbit satellite platform |
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2021
- 2021-11-02 CN CN202122667751.7U patent/CN215990800U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116667913A (en) * | 2023-07-31 | 2023-08-29 | 河北北斗天汇科技有限公司 | Ultra-long-distance Beidou satellite navigation signal forwarding method, forwarding device and system |
| CN116667913B (en) * | 2023-07-31 | 2023-09-29 | 河北北斗天汇科技有限公司 | Ultra-long-distance Beidou satellite navigation signal forwarding method, forwarding device and system |
| CN117081660A (en) * | 2023-10-12 | 2023-11-17 | 齐鲁卫星技术(山东)有限责任公司 | Wide-beam hidden transmitting platform for synchronous orbit satellite platform |
| CN117081660B (en) * | 2023-10-12 | 2024-01-16 | 齐鲁卫星技术(山东)有限责任公司 | Wide-beam hidden transmitting platform for synchronous orbit satellite platform |
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