CN207232393U - Full range sophisticated signal controller based on Beidou navigation - Google Patents

Full range sophisticated signal controller based on Beidou navigation Download PDF

Info

Publication number
CN207232393U
CN207232393U CN201720533855.XU CN201720533855U CN207232393U CN 207232393 U CN207232393 U CN 207232393U CN 201720533855 U CN201720533855 U CN 201720533855U CN 207232393 U CN207232393 U CN 207232393U
Authority
CN
China
Prior art keywords
signal
power
circuit unit
numerical
control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201720533855.XU
Other languages
Chinese (zh)
Inventor
崔贺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hebei Xun Information Technology Co Ltd
Original Assignee
Hebei Xun Information Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hebei Xun Information Technology Co Ltd filed Critical Hebei Xun Information Technology Co Ltd
Priority to CN201720533855.XU priority Critical patent/CN207232393U/en
Application granted granted Critical
Publication of CN207232393U publication Critical patent/CN207232393U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

The utility model proposes a kind of full range sophisticated signal controller based on Beidou navigation, including power conversion module and signal control module;The signal control module includes the integrated circuit plate of housing and setting inside housings;The integrated circuit plate includes power circuit unit, signal receiving circuit unit, signal amplification circuit unit, numerical control attenuation circuit unit, power-devided circuit unit, signal input antenna, signal output unit;The input terminal of the power circuit unit is connected with power conversion module;The power circuit unit is connected with signal input antenna;By set multiple slave antennas can receive global every country navigator fix all frequency points by the multiple amplifiers received and multiple numerical-control attenuators, signal will be received and repeatedly amplified, improve power gain;And signal output is carried out by multiple lead-out terminals, meet the demand of navigation signal multiple-channel output.

Description

Full range sophisticated signal controller based on Beidou navigation
Technical field
It the utility model is related to technical field of satellite, more particularly to a kind of full range sophisticated signal based on Beidou navigation Controller.
Background technology
Chinese Beidou satellite navigation system (BeiDou Navigation Satellite System, BDS) be China from The Global Satellite Navigation System that row is developed.It is after american global positioning system (GPS), Russian Glonass satellite navigation system (GLONASS) the 3rd ripe satellite navigation system after.Beidou satellite navigation system (BDS) and GPS of America, Russia GLONASS, European Union GALILEO, are the suppliers that the satellite navigation committee of the United Nations has been assert.
Beidou satellite navigation system is made of space segment, ground segment and user segment three parts, can whole day in the world Time, round-the-clock provide high accuracy, highly reliable positioning, navigation, time service service for all types of user, and have short message communication capacity, Possess area navigation, positioning and time service ability through preliminary, 10 meters of positioning accuracy, 0.2 meter per second of rate accuracy, time service precision 10 receives Second.On December 27th, 2012, the formal version 1.0 of dipper system spacing wave Interface Control File are formally announced, Beidou navigation business Formally passive location, navigation, time service service are provided to the Asian-Pacific area.On December 27th, 2013, Beidou satellite navigation system is formal There is provided the news briefing of regional service anniversary to hold in Information Office of the State Council's press hall, formal issue《The Big Dipper System discloses service performance specification (1.0 editions)》With《Dipper system spacing wave Interface Control File (2.0 editions)》Two systems text Part.On November 23rd, 2014, IMO maritime safety committee, which has approved, approves Beidou satellite navigation system Navigation safety circular, this indicate Beidou satellite navigation system formally become Global Radio Navigation System part, Obtain the international legal status towards maritime applications.The satellite navigation system of China has obtained the accreditation of International Maritime Organization. On January 10th, 2017, the estimated covering the Belt and Road country that took the lead in 2018 of Chinese dipper system, the year two thousand twenty are covering the whole world.
It is fainter or unstable, it is necessary to turn to navigation signal in some special occasions or indoor unit navigation signal Provide big and Power Control;The patent of Application No. 201110318639.0, discloses a kind of double navigation of Beidou II/GPS and defends Star signal retransmission unit and its implementation, it include by the sequentially connected outdoor signal Active Receiving Antenna of coaxial cable, Double navigation signal amplifying devices, double navigation signal variable attenuation devices, transmitting antenna in double navigation signal rooms, outdoor signal are active Reception antenna includes sequentially connected antenna, filter, adapting amplifier device and lightning arrester, power supply unit respectively with it is preposition Amplifying device, double navigation signal amplifying devices are connected.The present invention provides a kind of double navigation satellite signal forwardings of Beidou II/GPS Device and its implementation, are launched using outdoor signal Active Receiving Antenna real-time reception from Beidou II and gps satellite Signal, and handle receiving signal, Beidou II and GPS navigation satellite positioning signal can be forwarded at the same time by having, it is ensured that Signal defective region can also receive signal, the advantages that reducing material cost, save resource.
The patent of invention of Application No. 201510121115.0, there is provided a kind of signal repeater system, including outdoor RNSS/ RDSS reception antennas, the signal being attached respectively with outdoor RNSS/RDSS reception antennas and indoor user equipment forwarding Device;Signal repeater is integrated, it includes display unit, the indoor connecting interface being connected with user equipment and outdoor Exterior aerial interface, GPS/ Beidou receivers, controller, signal processing unit, the power tune of RNSS/RDSS reception antennas connection Engagement positions and power divider.There is the signal repeater system of the present invention structure to simplify, can cover GPS L1/L2, GLONASS The signal of L1/L2, BD2 B1/B2/B3 and BD1 signals forwards.
The technological deficiency of other patents or product generally existing is at this stage:The power gain of signal is low, the amplification of signal Multiple is small, it is impossible to meets the amplification forwarding to navigation signal;The Power control range of signal is small, it is impossible to meets to navigation signal Control range;The Power Control stepping of signal is big, it is impossible to meets the control stepping to navigation signal;The power control accuracy of signal Difference, it is impossible to meet the control accuracy to navigation signal;The way for exporting signal is few, it is impossible to meets defeated to the multichannel of navigation signal Go out.
Utility model content
The purpose of this utility model is intended at least solve one of described technological deficiency.
For this reason, a purpose of the utility model is to propose a kind of full range sophisticated signal control based on Beidou navigation Device, all frequency points by setting navigator fix that multiple secondary roads antennas can receive global every country are more by what is received A amplifier and multiple numerical-control attenuators, will receive signal and are repeatedly amplified, improve power gain;And pass through multiple work(point Device and lead-out terminal carry out signal output, meet the demand of navigation signal multiple-channel output.
To achieve these goals, the embodiment of the utility model one side provides a kind of full range essence based on Beidou navigation Close signal controller, it is characterised in that including power conversion module and signal control module;The signal control module includes shell The integrated circuit plate of body and setting inside housings;The integrated circuit plate includes power circuit unit, signal receiving circuit list Member, signal amplification circuit unit, numerical control attenuation circuit unit, power-devided circuit unit, signal input antenna, signal output unit; The input terminal of the power circuit unit is connected with power conversion module;The power circuit unit inputs antenna phase with signal Connection;The signal input antenna, signal receiving circuit unit, signal amplification circuit unit, numerical control attenuation circuit unit, work(point Circuit unit is sequentially connected;The power-devided circuit unit and power circuit unit are also respectively connected with signal output unit.
The signal amplification circuit unit includes first stage amplifier, two amplifiers, third stage amplifier;The first stage amplifier Input terminal connection signal input antenna;The signal input antenna includes main road antenna and multiple secondary road antennas;The pair road Antenna connects the GPS receiver of signal receiving circuit unit;Pair road antenna includes the first secondary road antenna, the second secondary road day Line;
The input terminal for the 25th capacitance connection first stage amplifier that the main road antenna passes through signal receiving circuit;It is described One end of the secondary road antenna of connection first of the output terminal of first stage amplifier;The other end of described first secondary road antenna passes through the first electricity The DC power supply of resistance series connection second resistance connection power circuit unit;The 26th electricity of output terminal series connection of the first stage amplifier Hold the input terminal of connection two-stage amplifier;One end of the second secondary road of output terminal connection antenna of the two-stage amplifier, and pass through 27th capacitance, the 7th resistance, the 28th capacitance are sequentially connected in series the first numerical control attenuation of numerical control attenuation circuit unit The input terminal of device, the output terminal of first numerical-control attenuator pass through the input of the 29th capacitance connection third stage amplifier of series connection End;The output terminal of the third stage amplifier is sequentially connected the second numerical-control attenuator, power-devided circuit unit, signal output unit.
Preferably, the model TQP3M9008 of the first stage amplifier;The model MBB-500 of two amplifier;Institute State the model BG18C of third stage amplifier.
Preferably, power-devided circuit unit includes the first power splitter, the second power splitter and the 3rd power splitter;First work(point The input terminal of device passes through the output terminal of the 24th the second numerical-control attenuator of capacitance connection, the output terminal point of first power splitter The input terminal of the second power splitter and the input terminal of the 3rd power splitter are not connected;The output terminal and the 3rd work(of second power splitter point Device output terminal respectively by series filtering capacitance be sequentially connected the first lead-out terminal of signal output unit, the second lead-out terminal, 3rd lead-out terminal, the 4th lead-out terminal;The model of first power splitter, the second power splitter and the 3rd power splitter is SBTC-2-25L。
Preferably, the model of first numerical-control attenuator and second numerical-control attenuator is HMC472LP4.
Preferably, the AC/DC power modules of the model IRM-10-5 of the power conversion module.
Preferably, the first numerical-control attenuator and the second numerical-control attenuator the connection microcontroller carries out the power of 60dB scopes Control.
Further, first and second numerical-control attenuator is controlled by microcontroller, the model of the microcontroller For C8051F340;The microcontroller connects screen, and the screen is used for the decay number for showing the first and second numerical-control attenuators Word value;Screen model is LMT035KDH03-NFN.
Preferably, the microcontroller can connect host computer by RS232 serial port circuits, and power control is carried out by host computer System, can also connect external key to microcontroller, Power Control is carried out by upper and lower two buttons.
According to the full range sophisticated signal controller based on Beidou navigation of the offer of the utility model embodiment, compared to biography The navigation signal controller of system, by set multiple secondary roads antennas can receive global every country navigator fix it is all The multiple amplifiers received and multiple numerical-control attenuators will be received signal and repeatedly amplified, improved power and increase by frequency point Benefit;And signal output is carried out by multiple power splitters and lead-out terminal, meet the demand of navigation signal multiple-channel output, by Host computer and microcontroller are set at power splitter;Control is realized and power splitter power distribution is directly controlled, and ensure that power accuracy.
The aspect and advantage that the utility model adds will be set forth in part in the description, partly by from following description In become obvious, or recognized by the practice of the utility model.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination accompanying drawings below to embodiment Become obvious and be readily appreciated that, wherein:
Fig. 1 is the module diagram of full range sophisticated signal controller of the utility model based on Beidou navigation
Fig. 2 (a) is the circuit diagram of full range sophisticated signal controller of the utility model based on Beidou navigation;
Fig. 2 (b) is the single chip circuit schematic diagram of full range sophisticated signal controller of the utility model based on Beidou navigation.
Fig. 3 is the power conversion module circuit theory of full range sophisticated signal controller of the utility model based on Beidou navigation Figure.
Embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning Same or similar element is represented to same or similar label eventually or there is same or like element.Below by ginseng The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model Limitation.
As shown in Figure 1, a kind of full range sophisticated signal controller based on Beidou navigation of the utility model embodiment, including electricity Source modular converter and signal control module;Signal control module includes the integrated circuit plate of housing 1 and setting inside housings;Collection Into circuit board include power circuit unit, signal receiving circuit unit, signal amplification circuit unit, numerical control attenuation circuit unit, Power-devided circuit unit, signal input antenna, signal output unit;The input terminal of power circuit unit is connected with power conversion module Connect;Power circuit unit is connected with signal input antenna;Signal input antenna, signal receiving circuit unit, signal amplification electricity Road unit, numerical control attenuation circuit unit, power-devided circuit unit are sequentially connected;Power-devided circuit unit and power circuit unit are also distinguished Connect signal output unit.
As shown in Fig. 2 (a), signal amplification circuit unit includes first stage amplifier A1, two amplifier A2, third stage amplifier A3;The model TQP3M9008 of first stage amplifier A1;The model MBB-500 of two amplifier A2;The model of third stage amplifier A3 For BG18C.
The input terminal connection signal input antenna of first stage amplifier A1;Signal input antenna includes main road antenna and multiple pairs Road antenna;The GPS receiver of secondary road antenna connection signal receiving circuit unit;Secondary road antenna includes the first pair road antenna L4, the Second mate road antenna L3;1000~2500MHz of frequency coverage, can cover all navigation frequency points.
The input terminal for the 25th capacitance C25 connection first stage amplifiers A1 that main road antenna passes through signal receiving circuit;One One end of the pair of the connection first road antenna L4 of the output terminal of level amplifier A1;The other end of first pair road antenna L4 passes through the first electricity Hinder the DC power supply+5V of R1 series connection second resistance R2 connection power circuit units;The output terminal series connection second of first stage amplifier A1 The input terminal of 16 capacitance C26 connection two-stage amplifiers A2;The output terminal of two-stage amplifier A2 connects the second pair road antenna L3's One end, and numerical control attenuation circuit is sequentially connected in series by the 27th capacitance C27, the 7th resistance R7, the 28th capacitance C28 The input terminal of first numerical-control attenuator N1 of unit, the output terminal of the first numerical-control attenuator N1 pass through the 29th capacitance of connecting The input terminal of C29 connection third stage amplifiers A3;The output terminal of third stage amplifier A3 is sequentially connected the second numerical-control attenuator N2, work(point Circuit unit, signal output unit.The model of first numerical-control attenuator and the second numerical-control attenuator is HMC472LP4.
Power-devided circuit unit includes the first power splitter Z1, the second power splitter Z2 and the 3rd power splitter Z3;First power splitter Z1 Input terminal pass through the output terminal of the 24th capacitance C24 the second numerical-control attenuators of connection N2, the output terminal of the first power splitter Z1 The input terminal of the second power splitter Z2 and the input terminal of the 3rd power splitter Z3 are connected respectively;The output terminal and the 3rd of second power splitter Z2 Power splitter Z3 output terminals are sequentially connected the first lead-out terminal P1, second defeated of signal output unit by series filtering capacitance respectively Go out terminal P2, the 3rd lead-out terminal P3, the 4th lead-out terminal P4.The model SBTC-2-25L of power splitter.Power conversion module Model IRM-10-5 AC/DC power modules.
As the first numerical-control attenuators of Fig. 2 (b) and the second numerical-control attenuator connection microcontroller carry out the power control of 60dB scopes System.First and second numerical-control attenuators are controlled by microcontroller, the model C8051F340 of the microcontroller;The list Piece machine connects screen, and the screen is used for the decay digital value for showing the first and second numerical-control attenuators;Screen model is LMT035KDH03-NFN.The microcontroller can connect host computer by RS232 serial port circuits, and power is carried out by host computer Control, can also connect external key to microcontroller, Power Control is carried out by upper and lower two buttons.
When the utility model is used, faint navigation signal passes through antenna, is transferred to the input terminal of sophisticated signal controller, DC power supply+5V the power supplys of the input terminal power circuit unit of navigation signal, can feed (power-up) to antenna.The navigation of input Signal by the low-noise amplifier, that is, first stage amplifier A1 in two-stage broadband be amplified faint navigation signal, this two The power gain of the low noise first stage amplifier A1 in level broadband is 40dB (10,000 times), and noise coefficient is less than 1.5dB.Pass through afterwards Level-one coupler, secondary road signal are received to GPS receiver, externally show the information such as real-time longitude and latitude, GPS time services.It is main Road navigation signal is transferred to the first numerical-control attenuator N1 (Power Control that can carry out 30dB) of high precision broad frequency, after pass through Cross the output terminal for fixing power amplification, afterwards third level amplifier A3 that the second attenuator N2 and third stage amplifier A3 carries out signal The second numerical-control attenuator N2 (Power Control that 30dB can be carried out again) is sequentially connected, last navigation signal is by being divided into The splitter on 4 tunnels carries out branch, wherein the output of splitter can power up exterior antenna with+5V power supplys all the way.
J8 as shown in Figure 3 is attaching plug, by header signal controller use+220V AC powers, is internally integrated AC/ DC transforming circuits, the power conversion module of model IRM-10-5 carry out voltage dress and change;+ 220V AC powers are made to become+5V straight Galvanic electricity source.+ 5V DC power supplies are powered to signal controller main devices, and antenna and the day of output signal to input signal Line offer+5V power supplys.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term State and may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be Combined in an appropriate manner in any one or more embodiments or example.
Although the embodiment of the utility model has been shown and described above, it is to be understood that above-described embodiment is Exemplary, it is impossible to the limitation to the utility model is interpreted as, those of ordinary skill in the art are not departing from the utility model Principle and objective in the case of above-described embodiment can be changed in the scope of the utility model, change, replace and Modification.The scope of the utility model is by appended claims and its equivalent limits.

Claims (8)

1. a kind of full range sophisticated signal controller based on Beidou navigation, it is characterised in that including power conversion module and signal Control module;The signal control module includes the integrated circuit plate of housing and setting inside housings;The integrated circuit plate Including power circuit unit, signal receiving circuit unit, signal amplification circuit unit, numerical control attenuation circuit unit, power-devided circuit Unit, signal input antenna, signal output unit;The input terminal of the power circuit unit is connected with power conversion module; The power circuit unit is connected with signal input antenna;The signal input antenna, signal receiving circuit unit, signal are put Big circuit unit, numerical control attenuation circuit unit, power-devided circuit unit are sequentially connected;The power-devided circuit unit and power circuit list Member is also respectively connected with signal output unit;
The signal amplification circuit unit includes first stage amplifier, two amplifiers, third stage amplifier;The first stage amplifier it is defeated Enter end connection signal input antenna;The signal input antenna includes main road antenna and multiple secondary road antennas;Pair road antenna Connect the GPS receiver of signal receiving circuit unit;Pair road antenna includes the first secondary road antenna, the second secondary road antenna;
The input terminal for the 25th capacitance connection first stage amplifier that the main road antenna passes through signal receiving circuit;The level-one One end of the secondary road antenna of connection first of the output terminal of amplifier;The other end of described first secondary road antenna passes through first resistor string Join the DC power supply of second resistance connection power circuit unit;Output terminal the 26th capacitance of series connection of the first stage amplifier connects Connect the input terminal of two-stage amplifier;One end of the second secondary road of output terminal connection antenna of the two-stage amplifier, and pass through second 17 capacitances, the 7th resistance, the 28th capacitance are sequentially connected in series the first numerical-control attenuator of numerical control attenuation circuit unit Input terminal, the output terminal of first numerical-control attenuator pass through the input terminal of the 29th capacitance connection third stage amplifier of series connection; The output terminal of the third stage amplifier is sequentially connected the second numerical-control attenuator, power-devided circuit unit, signal output unit.
2. the full range sophisticated signal controller according to claim 1 based on Beidou navigation, it is characterised in that the level-one The model TQP3M9008 of amplifier;The model MBB-500 of two amplifier;The model of the third stage amplifier BG18C。
3. the full range sophisticated signal controller according to claim 1 based on Beidou navigation, it is characterised in that power-devided circuit Unit includes the first power splitter, the second power splitter and the 3rd power splitter;The input terminal of first power splitter passes through the 24th The output terminal of the second numerical-control attenuator of capacitance connection, the output terminal of first power splitter connect the input of the second power splitter respectively End and the input terminal of the 3rd power splitter;The output terminal and the 3rd power splitter output terminal of second power splitter are filtered by connecting respectively Ripple capacitance is sequentially connected the first lead-out terminal of signal output unit, the second lead-out terminal, the 3rd lead-out terminal, the 4th output terminal Son, the model of first power splitter, the second power splitter and the 3rd power splitter is SBTC-2-25L.
4. the full range sophisticated signal controller according to claim 1 based on Beidou navigation, it is characterised in that described first The model of numerical-control attenuator and second numerical-control attenuator is HMC472LP4.
5. the full range sophisticated signal controller according to claim 1 based on Beidou navigation, it is characterised in that the power supply The AC/DC power modules of the model IRM-10-5 of modular converter.
6. the full range sophisticated signal controller according to claim 3 based on Beidou navigation, it is characterised in that described first Numerical-control attenuator and the second numerical-control attenuator connection microcontroller carry out the Power Control of 60dB scopes.
7. the full range sophisticated signal controller according to claim 6 based on Beidou navigation, it is characterised in that described first It is controlled with the second numerical-control attenuator by microcontroller, the model C8051F340 of the microcontroller;The microcontroller connection Screen, the screen are used for the decay digital value for showing the first and second numerical-control attenuators;Screen model is LMT035KDH03- NFN。
8. the full range sophisticated signal controller according to claim 6 based on Beidou navigation, it is characterised in that the monolithic Machine can connect host computer by RS232 serial port circuits, carry out Power Control by host computer, can also connect external key and arrive Microcontroller, Power Control is carried out by upper and lower two buttons.
CN201720533855.XU 2017-05-15 2017-05-15 Full range sophisticated signal controller based on Beidou navigation Active CN207232393U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720533855.XU CN207232393U (en) 2017-05-15 2017-05-15 Full range sophisticated signal controller based on Beidou navigation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720533855.XU CN207232393U (en) 2017-05-15 2017-05-15 Full range sophisticated signal controller based on Beidou navigation

Publications (1)

Publication Number Publication Date
CN207232393U true CN207232393U (en) 2018-04-13

Family

ID=61839071

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720533855.XU Active CN207232393U (en) 2017-05-15 2017-05-15 Full range sophisticated signal controller based on Beidou navigation

Country Status (1)

Country Link
CN (1) CN207232393U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115593328A (en) * 2022-09-07 2023-01-13 智道网联科技(北京)有限公司(Cn) Circuit suitable for automatic driving vehicle and vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115593328A (en) * 2022-09-07 2023-01-13 智道网联科技(北京)有限公司(Cn) Circuit suitable for automatic driving vehicle and vehicle

Similar Documents

Publication Publication Date Title
WO2017197954A1 (en) Low-noise power amplifier used for satellite navigation and time service, and method for use
CN207780243U (en) A kind of multi-frequency-point satellite navigation receiver
CN103412317A (en) Radio-frequency circuit structure for achieving function of converting GNSS satellite signals into baseband signals
CN101424729B (en) Big dipper//GPS time service type double-system receiving module
CN108832988A (en) A kind of method and communication terminal controlling multi-mode satellite serial communication
CN104808217A (en) Beidou foundation navigation network ground monitoring station and satellite capturing and tracing method of receiver thereof
CN205826868U (en) A kind of Big Dipper transceiver module
CN207232393U (en) Full range sophisticated signal controller based on Beidou navigation
CN108092682B (en) HFDL signal receiving and processing device
CN208384102U (en) A kind of ″Beidou″ beacon equipment applied to black box
CN207882445U (en) The Big Dipper is combined antenna assembly and electric-power metering, power information harvester
CN203535230U (en) Radio frequency circuit structure capable of converting GNSS satellite signal to baseband signal
CN204989484U (en) Multimode active antenna
CN208608986U (en) A kind of high-performance binary channels broadband rf front end
CN110927754A (en) Low-orbit high-reliability micro-nano satellite navigation receiver
CN208337568U (en) A kind of adaptive R-T unit of Beidou active antenna
CN108055048B (en) Satellite signal receiver capable of resisting interference
CN105301603A (en) Gnss receiver
CN206585559U (en) A kind of S sections of power amplifier LNA duplex apparatus
CN204993349U (en) Controllable formula multifrequency satellite signal forwarding unit
CN205883265U (en) Aerial wireless interfering signal monitor positioning data acquisition system
CN212391616U (en) Multi-frequency positioning terminal
CN205039806U (en) Shortwave broadband receiving system and device are directly adopted to radio frequency
CN205539489U (en) Anti -interference multichannel radio frequency module
CN202217056U (en) Northern Dipper global positioning system (GPS) double-module time service receiving device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant