CN108594279A - A kind of device received suitable for multisystem navigation signal monitoring - Google Patents
A kind of device received suitable for multisystem navigation signal monitoring Download PDFInfo
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- CN108594279A CN108594279A CN201810634590.1A CN201810634590A CN108594279A CN 108594279 A CN108594279 A CN 108594279A CN 201810634590 A CN201810634590 A CN 201810634590A CN 108594279 A CN108594279 A CN 108594279A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/35—Constructional details or hardware or software details of the signal processing chain
- G01S19/37—Hardware or software details of the signal processing chain
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/33—Multimode operation in different systems which transmit time stamped messages, e.g. GPS/GLONASS
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
A kind of device received suitable for multisystem navigation signal monitoring, including radio frequency processing module etc..By reception antenna and low-noise amplifier treated radiofrequency signal initially enters radio frequency processing module, analog down processing is completed, analog if signal is obtained；Secondly after AD is sampled, into intermediate frequency and message processing module IF processing unit, the IF process and anti-interference function of signal is completed, digital medium-frequency signal is obtained；It is again introduced into baseband processing module, complete the despread-and-demodulation of signal and send signal to intermediate frequency and message processing module information process unit, resolves the observation data needed；Finally observation data are sent the monitoring function that navigation signal is completed to external data processing software by interface module by network interface；The device of the invention has the characteristics that small, low in energy consumption, integrated level is high and high certainty of measurement, receivable signal cover the Big Dipper whole world, all civil signals of GPS, GLONASS, Galileo four systems.
Description
Technical field
The present invention relates to a kind of devices received suitable for multisystem navigation signal monitoring, belong to field of Beidou navigation.
Background technology
With the development of Global Satellite Navigation System, satellite navigation signals existing for space no matter from signal component number or
Great variety has occurred on signal system.Current triones navigation system existing B1I, B2I, B3I, B1C, B2a, B2b, B3C
Seven civil signals, GPS is there are tetra- signals of L1C/A, L2P, L2C, L5, and there are tri- letters of E1B/C, E5a, E5b by Galileo
Number, there are two frequency division multiple address signals of L1 and L2 and a L3 CDMA signals by GLONASS.With the networking of the dipper system whole world
And GPS modernizations, New System signal B1C, B2a, L2C, L5 substitute B1I, B2I, B3I, L1C/A signal at last.In addition, with
The development of Galileo and GLONASS, the system combined positioning of multi-satellite navigation also become inevitable.And current navigation signal monitoring
Reception device is based on certain the several signal component or the Big Dipper only received in No. two B1I, B2I and B3I navigation signals of the Big Dipper mostly
The design of No. two+GPS L1C/A and L2P dual-frequency navigation signals, such design cannot be satisfied the reception of present satellites navigation signal
The demand of equipment.
For this purpose, design it is a kind of receiving the Big Dipper whole world, all civil signals of tetra- system of GPS, GLONASS and Galileo are led
It needs to design hundreds of individual reception channels on boat signal monitoring reception device software, higher signal processing speed is needed on hardware
Degree and more fpga logic resources, this will bring the increasing of navigation signal monitoring reception device volume, complexity and power consumption
Add.
Invention content
The technology of the present invention solves the problems, such as：The deficiency for making up existing navigation signal monitoring reception device, provides one kind
Suitable for the device that multisystem navigation signal monitoring receives, the navigation signal of reception cover the Big Dipper whole world, GPS, GLONASS and
All civil signals of tetra- systems of Galileo have the characteristics that small, low in energy consumption, integrated level is high and high certainty of measurement.
The technical solution adopted in the present invention is：A kind of device received suitable for multisystem navigation signal monitoring, it is special
Sign is, including radio frequency processing module, intermediate frequency and message processing module, baseband processing module, interface module, display module and when
Frequency module；
Radio frequency processing module includes preamplifier, power splitter, F1 signal paths and F2 signal paths, radio frequency processing module
Preamplifier passes through power splitter point to treated after radiofrequency signal is amplified by reception antenna and low-noise amplifier
For two-way, two-way radiofrequency signal respectively enters F1 signal paths and F2 signal paths, in F1 signal paths and F2 signal paths
Radiofrequency signal carry out bandpass filtering, amplification, down coversion and low-pass filtering respectively, complete analog down processing, simulated
Intermediate-freuqncy signal；
Intermediate frequency and message processing module include IF processing unit, information process unit, and IF processing unit is to receiving
Analog if signal carry out analog-to-digital conversion, Digital Down Convert, narrowband and pulse anti-interference process and quantized digital signal, obtain
To digital medium-frequency signal, it is sent to baseband processing module；Information process unit receives the original that baseband processing module despread-and-demodulation goes out
Begin observation data, navigation message, state parameter, while passing through local zone time foundation and calibration, computation of pseudoranges, navigation message solution
Analysis, positioning calculation, pseudorange, carrier phase, Doppler, navigation message, duty parameter, shape are provided for interface module and display module
State parameter, time parameter, local timing signal；
Baseband processing module passes through to the capture of digital medium-frequency signal, tracking, pseudo range measurement, carrier phase measurement, how general
Measurement, navigation message demodulation conversion, signal quality monitoring are strangled, reception measurement, the loop circuit state of multisystem navigation signal are completed
Instruction, multipaths restraint, channel time delay monitoring；
Interface module by network interface, serial communication interface, CF cards realize to the setting of the control instruction of described device and response,
Function is restarted in operation log inquiry, self-test；
Display module shows pseudorange, carrier phase, Doppler, navigation message parameter and positioning calculation as a result, carrying simultaneously
For working state of device parameter query and working condition abnormality alarming display function；
When frequency module include locking phase constant-temperature crystal oscillator and drive amplification circuit, locking phase constant-temperature crystal oscillator generates described device and works institute
The frequency standard signal needed automatically becomes locked to interior frequency marking in outer frequency marking when detecting external frequency standard signal input, realizes inside and outside
The automatic switchover of frequency marking work, and lock indication signal is exported to intermediate frequency and message processing module；Drive amplification circuit is by locking phase
It is respectively radio frequency processing module, intermediate frequency and message processing module by power splitter after the frequency standard signal amplification of constant-temperature crystal oscillator output
Frequency standard signal input is provided.
The parameter of the F1 signal paths is as follows：Frequency range be 1155.99MHz~1288.75MHz, bandwidth 133MHz, in
Heart frequency point be 1222.37MHz, the navigation signal that F1 signal paths can be handled include B2I, B2a/b, B3I, B3C, L5, L2C,
L2P, E5a, E5b, G2C/A, G3OC navigation signal.
The parameter of the F2 signal paths is as follows：Frequency range be 1550.92MHz~1599.92MHz, bandwidth 49MHz, in
Heart frequency point be 1575.42MHz, the navigation signal that F2 signal paths can be handled include B1C, B1I, L1C/A, L1C, G1C/A,
E1B/C navigation signals.
The F1 signal paths include the first radio frequency amplifier, the first attenuation network, the first bandpass filter, the first VGA
Amplifier, the first balun, the first quadrature down converter and first frequency synthesizer；The signal of power splitter output passes through the first radio frequency
Amplifier carries out signal and is amplified into the first attenuation network carrying out signal decaying and impedance matching, and the signal after decaying passes through the
One bandpass filter filtering clutter enters back into the first VGA amplifiers and carries out controllable gain amplification, will subsequently into the first balun
Single-ended signal is converted to differential signal and exports to the first quadrature down converter, and first frequency synthesizer exports local oscillation signal to first
Differential signal is down-converted to intermediate-freuqncy signal simultaneously by positive low-converter, the first quadrature down converter according to the local oscillation signal received
Output.
The F2 signal paths include the second radio frequency amplifier, the second attenuation network, the second bandpass filter, the 2nd VGA
Amplifier, the second balun, the second quadrature down converter and second frequency synthesizer；The signal of power splitter output passes through the second radio frequency
Amplifier carries out signal and is amplified into the second attenuation network carrying out signal decaying and impedance matching, and the signal after decaying passes through the
Two band-pass filter filtering clutter enters back into the 2nd VGA amplifiers and carries out controllable gain amplification, will subsequently into the second balun
Single-ended signal is converted to differential signal and exports to the second quadrature down converter, and second frequency synthesizer exports local oscillation signal, and second
Differential signal is down-converted to intermediate-freuqncy signal according to the local oscillation signal received and exported by quadrature down converter.
The intermediate frequency is MicroTCA embedded architectures with message processing module, and structure type is " support plate ", intermediate frequency and letter
Breath processing module is interconnected between being used as " support plate " and " AMC subcards " by AMC connector；Intermediate frequency is used with message processing module
" DSP+FPGA " framework.
The baseband processing module is MicroTCA embedded architectures, and structure type is " AMC subcards ", baseband processing module
It is interconnected by AMC connector between " support plate " as " AMC subcards "；Baseband processing module uses " DSP+FPGA " framework.
Plate is realized using RapidIO interconnections between the intermediate frequency and the DSP of message processing module and baseband processing module
Between communicate, be configured to the RapidIO interfaces of 4 road 1x patterns.
It is communicated using LVDS SerDes between the intermediate frequency and message processing module and the FPGA of baseband processing module.
Further include power module, power module includes primary power source and secondary power supply, and primary power source is industry standard 3U
CPCI power modules, primary power source are inserted into described device internal electric source backboard by guide rail, and primary power source passes through with power supply backplane
47 needle connectors of PCIH47M400A1 connect；Secondary power supply is converted by the voltage that DC/DC power supply chips export primary power source
For required DC voltage.
The present invention compared with prior art the advantages of it is as follows：
(1) navigation signal that the device of the invention is received covers the Big Dipper whole world, tetra- system of GPS, GLONASS and Galileo
It unites all civil signals；Device has feature small, low in energy consumption, that integrated level is high：Cabinet Size is 2U, power consumption≤90W, sets
In respect of 826 individual reception channels；
(2) navigation signal is designed to two frequency ranges by radio frequency processing module of the invention, to two frequency ranges and local carrier
Frequency is amplified respectively, frequency conversion and is filtered, and has the highly sensitive ability for receiving processing weak signal, processing strong signal
The advantage that the high dynamic ability of (interference signal), circuit structure are simple, reliability is high；
(3) the device of the invention has very strong scalability：Intermediate frequency exists with message processing module and baseband processing module
With reference to MicroTCA embedded architectures in design, constitute the structure type of compact " support plate+AMC subcards ", intermediate frequency at information
Reason module is realized that baseband processing module is realized by the duplicate standard of polylith hardware design " AMC subcards " by one piece " support plate ",
It is interconnected by AMC connector between " support plate " and " AMC subcards ", complete machine could support up eight pieces of subcards；
(4) the device of the invention intermediate frequency uses setting for " DSP+FPGA " framework with message processing module and baseband processing module
Meter scheme：DSP is a fixed-point processor, has dominant frequency, 2MB memories and the abundant peripheral resources, larger of 1.25GHz
DDR external storages, RapidIO interconnections, VCP decoders, TCP decoders are interconnected by RapidIO between two module DSP
Bus communication, have the advantages that delay is small, reliability is high, when not accounting for CPU machines；Pass through LVDS between two module FPGA
SerDes is communicated, and is had the advantages that high speed long-haul transport, is saved device I/O resource；
(5) the device of the invention use modularized design, have quick detachable, easy to install, Anti-misplug, generalization, seriation,
The characteristics of modularization, equipment compatibility is good, and versatility, compatibility are strong, and reliability is high, can be by automatic test Software for Design
Failure is accurately positioned after occurring and arrives corresponding module, convenient for test and repair.
Description of the drawings
Fig. 1 is multisystem navigation signal monitoring reception device composition frame chart；
Fig. 2 is radio frequency processing module composition frame chart；
Fig. 3 is that navigation frequency range divides figure.
Specific implementation mode
Invention is further explained below in conjunction with the accompanying drawings.
The satellite navigation receiver of the present invention is integrated in 2U cabinets, and it is civilian can to receive 28 Big Dipper global satellites simultaneously
Signal (including B1I, B1C, B2I, B2a/b, B3I, B3C), 18 GPS satellite civil signals (including L1C/A, L1C, L2C,
L2P, L5), 15 GLONASS satellite civil signals (including G1C/A, G2C/A, G3OC) and 15 civilian letters of Galileo satellite
Number (including E1B/C, E5a, E5b), amount to 826 individual reception channels.
The device of the invention uses modularized design, as shown in Figure 1, the dress received suitable for the monitoring of multisystem navigation information
Set including radio frequency processing module, intermediate frequency and message processing module, baseband processing module, interface module, display module, power supply mould
Block and when frequency module, definite functions can be accurately positioned after failure appearance to corresponding by automatic test Software for Design
Module, meanwhile, apparatus structure using quick detachable, easy to install, Anti-misplug, generalization, seriation, the design of modularization, equipment
Interchangeability is good, and versatility, compatibility are strong, and reliability is high, convenient for test and repair.
Radio frequency processing module includes preamplifier, power splitter, F1 (1.2GHz) signal paths and F2 (1.5GHz) signal
Channel, two signal path hardware designs are completely the same, including amplifier, attenuation network, bandpass filter, VGA amplifiers, bar
Human relations, quadrature down converter and frequency synthesizer, radio frequency processing module composition frame chart are as shown in Figure 2.By reception antenna and low noise
Treated that radiofrequency signal first passes around radio frequency processing module wideband pre-amplifier is amplified for acoustic amplifier, then passes through work(
It is divided to that device is divided into F1 and two path channels of F2 carry out signal amplification respectively, enters attenuation network later and carry out signal decaying and impedance
Match, the signal after decaying enters back into VGA amplifiers and carries out controllable gain amplification by bandpass filter filtering clutter, then into
Enter balun, single-ended signal, which is converted to differential signal, to be exported to quadrature down converter, is exported by the frequency synthesizer received
Local oscillation signal, during quadrature down converter down-converts to above-mentioned differential signal according to the output signal of the frequency synthesizer received
Frequency signal simultaneously exports.To meet received signal, to cover the Big Dipper whole world, GPS, GLONASS, Galileo four systems all civilian
The demand of signal, by navigation signal design in two frequency ranges as shown in Figure 3：
1) parameter of F1 frequency ranges is as follows：Frequency range is 1155.99MHz~1288.75MHz, bandwidth 133MHz, center frequency point
For 1222.37MHz, the navigation signal that F1 signal paths can be handled include B2I, B2a/b, B3I, B3C, L5, L2C, L2P,
E5a, E5b, G2C/A, G3OC signal；
2) parameter of F2 frequency ranges is as follows：Frequency range is 1550.92MHz~1599.92MHz, bandwidth 49MHz, center frequency point
For 1575.42MHz, the navigation signal that F2 signal paths can be handled includes B1C, B1I, L1C/A, L1C, G1C/A, E1B/C letter
Number.
Radio frequency processing module is amplified above-mentioned two frequency range and local carrier frequency respectively, frequency conversion and is filtered,
With highly sensitive ability, processing strong signal especially the high dynamic ability of interference signal, the circuit knot for receiving processing weak signal
The advantage that structure is simple, reliability is high.
Analog if signal realizes the analog-to-digital conversion of analog if signal, Digital Down Convert, narrow by IF processing unit
The function of band and pulse anti-interference process and quantized digital signal provides digital medium-frequency signal for baseband processing module；Information
Processing unit receives the original observed data that baseband processing module despread-and-demodulation goes out, navigation message, state parameter, while passing through this
The ground time establishes and calibration, computation of pseudoranges, navigation message parse, positioning calculation, for interface module and display module provide pseudorange,
Carrier phase, Doppler, navigation message, duty parameter, state parameter, time parameter, local timing signal.
Baseband processing module passes through to the capture of digital medium-frequency signal, tracking, pseudo range measurement, carrier phase measurement, how general
Measurement, navigation message demodulation conversion, signal quality monitoring are strangled, reception measurement, the loop circuit state of multisystem navigation signal are completed
Instruction, multipaths restraint, channel time delay monitoring.
Intermediate frequency, in the design with reference to MicroTCA embedded architectures, is constituted tight with message processing module and baseband processing module
The structure type of " support plate+AMC subcards " that gathers.Intermediate frequency and message processing module realized by one piece " support plate ", baseband processing module
It is realized by the duplicate standard of polylith hardware design " AMC subcards ", passes through AMC connector between " support plate " and " AMC subcards "
Interconnection, complete machine could support up eight pieces of subcards, have good scalability.
Intermediate frequency is all made of the design scheme of " DSP+FPGA " framework, two moulds with message processing module and baseband processing module
The dsp processor model specification that block is selected is identical, is a fixed-point processor, has the dominant frequency of 1.25GHz, 2MB memories and rich
The characteristics of rich peripheral resources, larger DDR external storages, RapidIO interconnections, VCP decoders, TCP decoders.
It is mutual using high-speed RapidIO between intermediate frequency and message processing module information process unit and baseband processing module DSP
Join bussing technique and realizes communication between plates.RapidIO buses have the characteristics that high-speed, high bandwidth, low time delay and to software-transparent,
The DSP that device is selected can be configured to the RapidIO interfaces of 4 road 1x patterns, and traffic rate is up to 3.125Gbps.Its communication is base
In the communication protocol of packet switch, read-write requests task is based on the corresponding DMA register of configuration, is done without CPU after task start
In advance, it is suitble to the transmission of high-volume data.Original observed quantity and navigation message number between information process unit and baseband processing module
It is larger according to measuring, have delay small with RapidIO communications, reliability is high, does not account for advantage when CPU machines.
It is (low using LVDS SerDes between intermediate frequency and message processing module IF processing unit and baseband processing module FPGA
Pressure difference sub-signal serializer/de-serializers) communication.The FPGA that two kinds of modules are selected is each provided with the IP for LVDS signal processings
Core can directly invoke the transmission between dedicated IP kernel completion data for the LVDS signals (digital medium-frequency signal) of high speed.
Intermediate frequency sends core (altlvds_tx) with the multiple LVDS of message processing module IF processing unit FPGA design：By parallel signal string
Row is sent after turning to LVDS signals, and the multiple LVDS of baseband processing module FPGA design receive core (altlvds_rx)：Receive LVDS
Serial signal simultaneously post-processes the signal parallelization.The main feature of LVDS SerDes includes：
1) LVDS SerDes clocks in data line are embedded, need not transmit clock signal；
2) high speed long-haul transport may be implemented by exacerbation/balancing technique in LVDS SerDes, in the device of the invention
LVDS SerDes data are communicated by AMC connector, and the rate of design is 400Mbps；
3) LVDS SerDes have used less FPGA pins, a channel SerDes be used only 4 pins (TX+/-,
RX+/-), current FPGA can accomplish the up to traffic rate of 28Gbps, and the line rate of the DDR3-1600 of a 16bits
For 25Gbps, 50 pins are but needed, by comparison it can be seen that advantages of the LVDS SerDes on transmission bandwidth.
Operate interface of the interface module between user and device is realized by network interface, serial communication interface, CF cards to dress
The control instruction setting set restarts function with response, operation log inquiry, self-test.
Display module is touch liquid crystal display, is communicated by Asynchronous Serial Interface between intermediate frequency and message processing module, is shown
Show pseudorange, carrier phase, Doppler, navigation message parameter and positioning calculation as a result, providing working state of device parameter simultaneously
Inquiry and working condition abnormality alarming display function.
Power module is made of primary power source and secondary power supply two parts, and primary power source is industry standard 3U CPCI electricity
Source module, power module are passed through by guide rail insertion apparatus internal electric source backboard, power module with power supply backplane
47 needle connectors of PCIH47M400A1 connect, and install, replace very convenient, are provided simultaneously with overcurrent, over-voltage protecting function；It is secondary
+ the 5V, ± 12V of primary power source output are passed through DC/DC power supply cores by power supply according to the need of work of each modular circuit inside device
Piece, it includes+3.3V ,+2.5V ,+1.8V ,+1.25V ,+1.1V ,+0.9V that design, which generates required DC voltage,.
When frequency module be made of locking phase constant-temperature crystal oscillator and drive amplification circuit, the core of frequency module when locking phase constant-temperature crystal oscillator is
Component can independently generate the frequency standard signal needed for equipment work, can be by interior frequency marking when detecting external frequency standard signal input
It automatically becomes locked in outer frequency marking, realizes the automatic switchover of inside and outside frequency marking work, and export lock indication signal；Drive amplification electricity
It is respectively radio frequency processing module, intermediate frequency and message processing module by power splitter after the output of locking phase constant-temperature crystal oscillator is amplified on road
Frequency standard signal input is provided.
The content that description in the present invention is not described in detail belongs to the known technology of those skilled in the art.
Claims (10)
1. a kind of device received suitable for multisystem navigation signal monitoring, which is characterized in that including radio frequency processing module, intermediate frequency
With message processing module, baseband processing module, interface module, display module and when frequency module；
Radio frequency processing module includes that preamplifier, power splitter, F1 signal paths and F2 signal paths, radio frequency processing module are preposition
Amplifier is divided into two to treated after radiofrequency signal is amplified by reception antenna and low-noise amplifier by power splitter
Road, two-way radiofrequency signal respectively enter F1 signal paths and F2 signal paths, to penetrating in F1 signal paths and F2 signal paths
Frequency signal carries out bandpass filtering, amplification, down coversion and low-pass filtering respectively, completes analog down processing, obtains analog intermediate frequency
Signal；
Intermediate frequency and message processing module include IF processing unit, information process unit, and IF processing unit is to the mould that receives
Quasi- intermediate-freuqncy signal carries out analog-to-digital conversion, Digital Down Convert, narrowband and pulse anti-interference process and quantized digital signal, is counted
Word intermediate-freuqncy signal, is sent to baseband processing module；Information process unit receives the original sight that baseband processing module despread-and-demodulation goes out
Measured data, navigation message, state parameter, while being parsed, calmly by local zone time foundation and calibration, computation of pseudoranges, navigation message
Position resolves, and pseudorange, carrier phase, Doppler, navigation message, duty parameter, state ginseng are provided for interface module and display module
Number, time parameter, local timing signal；
Baseband processing module is by surveying the capture of digital medium-frequency signal, tracking, pseudo range measurement, carrier phase measurement, Doppler
Amount, navigation message demodulation conversion, signal quality monitoring, complete multisystem navigation signal reception measurement, loop circuit state instruction,
Multipaths restraint, channel time delay monitoring；
Interface module realizes control instruction setting and response, the operation to described device by network interface, serial communication interface, CF cards
Function is restarted in log query, self-test；
Display module shows pseudorange, carrier phase, Doppler, navigation message parameter and positioning calculation as a result, providing dress simultaneously
Set working status parameter inquiry and working condition abnormality alarming display function；
When frequency module include locking phase constant-temperature crystal oscillator and drive amplification circuit, locking phase constant-temperature crystal oscillator generates needed for described device work
Interior frequency marking is automatically become locked in outer frequency marking when detecting external frequency standard signal input, realizes inside and outside frequency marking by frequency standard signal
The automatic switchover of work, and lock indication signal is exported to intermediate frequency and message processing module；Drive amplification circuit is by locking phase constant temperature
It is respectively that radio frequency processing module, intermediate frequency and message processing module provide by power splitter after the frequency standard signal amplification of crystal oscillator output
Frequency standard signal inputs.
2. a kind of device received suitable for multisystem navigation signal monitoring according to claim 1, it is characterised in that：Institute
The parameter for stating F1 signal paths is as follows：Frequency range is 1155.99MHz~1288.75MHz, bandwidth 133MHz, and center frequency point is
The navigation signal that 1222.37MHz, F1 signal path can be handled include B2I, B2a/b, B3I, B3C, L5, L2C, L2P, E5a,
E5b, G2C/A, G3OC navigation signal.
3. a kind of device received suitable for multisystem navigation signal monitoring according to claim 1 or 2, feature exist
In：The parameter of the F2 signal paths is as follows：Frequency range is 1550.92MHz~1599.92MHz, bandwidth 49MHz, center frequency point
For 1575.42MHz, the navigation signal that F2 signal paths can be handled includes that B1C, B1I, L1C/A, L1C, G1C/A, E1B/C are led
Navigate signal.
4. a kind of device received suitable for multisystem navigation signal monitoring according to claim 3, it is characterised in that：Institute
It includes the first radio frequency amplifier, the first attenuation network, the first bandpass filter, the first VGA amplifiers, first to state F1 signal paths
Balun, the first quadrature down converter and first frequency synthesizer；The signal of power splitter output is carried out by the first radio frequency amplifier
Signal is amplified into the progress signal decaying of the first attenuation network and impedance matching, the signal after decaying pass through the first bandpass filtering
Device filtering clutter enters back into the first VGA amplifiers and carries out controllable gain amplification, and subsequently into the first balun, single-ended signal is turned
It is changed to differential signal to export to the first quadrature down converter, first frequency synthesizer exports local oscillation signal to the first positive down coversion
Differential signal is down-converted to intermediate-freuqncy signal according to the local oscillation signal received and exported by device, the first quadrature down converter.
5. a kind of device received suitable for multisystem navigation signal monitoring according to claim 4, it is characterised in that：Institute
It includes the second radio frequency amplifier, the second attenuation network, the second bandpass filter, the 2nd VGA amplifiers, second to state F2 signal paths
Balun, the second quadrature down converter and second frequency synthesizer；The signal of power splitter output is carried out by the second radio frequency amplifier
Signal is amplified into the progress signal decaying of the second attenuation network and impedance matching, the signal after decaying pass through the second bandpass filtering
Device filtering clutter enters back into the 2nd VGA amplifiers and carries out controllable gain amplification, and subsequently into the second balun, single-ended signal is turned
It is changed to differential signal to export to the second quadrature down converter, second frequency synthesizer exports local oscillation signal, the second quadrature frequency conversion
Differential signal is down-converted to intermediate-freuqncy signal according to the local oscillation signal received and exported by device.
6. a kind of device received suitable for multisystem navigation signal monitoring according to claim 1, it is characterised in that：Institute
It is MicroTCA embedded architectures that intermediate frequency, which is stated, with message processing module, and structure type is " support plate ", intermediate frequency and message processing module
It is interconnected by AMC connector as between " support plate " and " AMC subcards "；Intermediate frequency uses " DSP+FPGA " frame with message processing module
Structure.
7. a kind of device received suitable for multisystem navigation signal monitoring according to claim 6, it is characterised in that：Institute
It is MicroTCA embedded architectures to state baseband processing module, and structure type is " AMC subcards ", and baseband processing module is used as " AMC
Card " is interconnected between " support plate " by AMC connector；Baseband processing module uses " DSP+FPGA " framework.
8. a kind of device received suitable for multisystem navigation signal monitoring described according to claim 6 or 7, feature exist
In：Lead to using between RapidIO interconnections realization plate between the intermediate frequency and the DSP of message processing module and baseband processing module
Letter, is configured to the RapidIO interfaces of 4 road 1x patterns.
9. a kind of device received suitable for multisystem navigation signal monitoring according to claim 8, it is characterised in that：Institute
It states and is communicated using LVDS SerDes between intermediate frequency and message processing module and the FPGA of baseband processing module.
10. a kind of device received suitable for multisystem navigation signal monitoring according to claim 1, it is characterised in that：
Further include power module, power module includes primary power source and secondary power supply, and primary power source is industry standard 3U CPCI power supplys
Module, primary power source are inserted into described device internal electric source backboard by guide rail, and primary power source passes through with power supply backplane
47 needle connectors of PCIH47M400A1 connect；Secondary power supply is converted by the voltage that DC/DC power supply chips export primary power source
For required DC voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810634590.1A CN108594279B (en) | 2018-06-20 | 2018-06-20 | Device suitable for monitoring and receiving multi-system navigation signals |
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| CN109581440A (en) * | 2018-12-18 | 2019-04-05 | 中国电子科技集团公司第五十四研究所 | A kind of integrated distribution formula multisystem navigation signal processing platform |
| CN110971252A (en) * | 2019-12-06 | 2020-04-07 | 北京自动化控制设备研究所 | Satellite navigation radio frequency front-end circuit and clock circuit |
| CN110988925A (en) * | 2019-12-17 | 2020-04-10 | 北京遥测技术研究所 | Pulse interference detection and parameter determination method for satellite navigation receiver |
| CN111175793A (en) * | 2020-01-03 | 2020-05-19 | 中国船舶重工集团公司第七0七研究所 | Marine Beidou third positioning module and positioning method |
| CN111337951A (en) * | 2020-05-18 | 2020-06-26 | 湖南卫导信息科技有限公司 | A system type test equipment for interior external field test uses |
| CN113238255A (en) * | 2021-06-30 | 2021-08-10 | 上海基萌智能机器人有限公司 | Satellite navigation signal receiving system |
| CN114422053A (en) * | 2022-03-28 | 2022-04-29 | 成都锢德科技有限公司 | Automatic monitoring and analyzing equipment for satellite signals |
| CN115051721A (en) * | 2022-08-17 | 2022-09-13 | 中国人民解放军国防科技大学 | Multi-channel radio frequency receiving signal processing method and system based on software definition |
| CN115149998A (en) * | 2022-09-06 | 2022-10-04 | 天津先进技术研究院 | Method and device for simultaneously receiving multiple signal systems |
| CN115443018A (en) * | 2022-07-20 | 2022-12-06 | 北京遥测技术研究所 | S-band 48-channel tile-type integrated digital receiving assembly |
| CN117269995A (en) * | 2023-11-24 | 2023-12-22 | 北京凯芯微科技有限公司 | GNSS radio frequency module fault detection circuit, GNSS radio frequency module fault detection method, GNSS radio frequency module fault detection chip and GNSS receiver |
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| CN109581440A (en) * | 2018-12-18 | 2019-04-05 | 中国电子科技集团公司第五十四研究所 | A kind of integrated distribution formula multisystem navigation signal processing platform |
| CN110971252A (en) * | 2019-12-06 | 2020-04-07 | 北京自动化控制设备研究所 | Satellite navigation radio frequency front-end circuit and clock circuit |
| CN110988925A (en) * | 2019-12-17 | 2020-04-10 | 北京遥测技术研究所 | Pulse interference detection and parameter determination method for satellite navigation receiver |
| CN111175793A (en) * | 2020-01-03 | 2020-05-19 | 中国船舶重工集团公司第七0七研究所 | Marine Beidou third positioning module and positioning method |
| CN111175793B (en) * | 2020-01-03 | 2022-12-09 | 中国船舶重工集团公司第七0七研究所 | Marine Beidou third-order positioning module and positioning method |
| CN111337951A (en) * | 2020-05-18 | 2020-06-26 | 湖南卫导信息科技有限公司 | A system type test equipment for interior external field test uses |
| CN111337951B (en) * | 2020-05-18 | 2020-08-25 | 湖南卫导信息科技有限公司 | A system type test equipment for interior external field test uses |
| CN113238255A (en) * | 2021-06-30 | 2021-08-10 | 上海基萌智能机器人有限公司 | Satellite navigation signal receiving system |
| CN114422053B (en) * | 2022-03-28 | 2022-06-07 | 成都锢德科技有限公司 | Automatic monitoring and analyzing equipment for satellite signals |
| CN114422053A (en) * | 2022-03-28 | 2022-04-29 | 成都锢德科技有限公司 | Automatic monitoring and analyzing equipment for satellite signals |
| CN115443018A (en) * | 2022-07-20 | 2022-12-06 | 北京遥测技术研究所 | S-band 48-channel tile-type integrated digital receiving assembly |
| CN115051721A (en) * | 2022-08-17 | 2022-09-13 | 中国人民解放军国防科技大学 | Multi-channel radio frequency receiving signal processing method and system based on software definition |
| CN115149998A (en) * | 2022-09-06 | 2022-10-04 | 天津先进技术研究院 | Method and device for simultaneously receiving multiple signal systems |
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| CN117269995A (en) * | 2023-11-24 | 2023-12-22 | 北京凯芯微科技有限公司 | GNSS radio frequency module fault detection circuit, GNSS radio frequency module fault detection method, GNSS radio frequency module fault detection chip and GNSS receiver |
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