CN103973384A - Dynamic satellite earth station carrier monitoring system - Google Patents
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- CN103973384A CN103973384A CN201410215771.2A CN201410215771A CN103973384A CN 103973384 A CN103973384 A CN 103973384A CN 201410215771 A CN201410215771 A CN 201410215771A CN 103973384 A CN103973384 A CN 103973384A
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Abstract
The invention provides a dynamic satellite earth station carrier monitoring system. The dynamic satellite earth station carrier monitoring system comprises a dynamic carrier monitoring subsystem and a frequency spectrum information processing subsystem. The dynamic carrier monitoring subsystem is connected with an earth station satellite communication system, and used for carrying out real-time monitoring and analyzing on signals preset at multi-path intermediate frequency monitoring points and radio frequency monitoring points in the earth station satellite communication system to obtain corresponding signal frequency spectrum data. The frequency spectrum information processing subsystem is connected with the dynamic carrier monitoring subsystem, and used for receiving signal frequency spectrum data sent by a digital processing module, managing and storing the signal frequency spectrum data, analyzing the signal frequency spectrum data and giving an alarm signal when finding a fault. The dynamic satellite earth station carrier monitoring system can find the anomalous change of carriers as soon as possible, judge and process the possible existing hidden dangers of the system as soon as possible, and the safety reliability of the system is improved.
Description
Technical field
The present invention relates to satellite communication service technique field, particularly a kind of satellite earth station carrier wave dynamic monitoring system.
Background technology
Along with the continuous increase of satellite communication business demand, the equipment of earth station satellite communication system operation is more and more.The number of carriers of system works is also more and more, and the connection between devices in system becomes increasingly complex.How effectively monitor satellite communication system operating state, determine and record the ruuning situation of each traffic carrier, and the anomaly that system is occurred is carried out in time, locates accurately, processed, and becomes problem in urgent need to solve.
The monitoring of current satellite earth station carrier wave mainly completes by operator on duty's time recording system mode.Operator on duty determines the working condition (as equipment such as modulator-demodulators) of equipment by the state parameter of each equipment of observing system.By each spectrum of carrier parameter in frequency spectrograph measuring system, determine each carrier wave operating state.Existing method cannot realize the real time record to frequency spectrum state, and location fault needs certain hour, does not possess the ability of simultaneously monitoring a plurality of port signals, also comparatively difficult for the malfunction judgement on carrier wave.
Summary of the invention
Object of the present invention is intended at least solve one of described technological deficiency.
For this reason, the object of the invention is to propose a kind of satellite earth station carrier wave dynamic monitoring system, this system can be found the ANOMALOUS VARIATIONS of carrier wave as early as possible, and the hidden danger that judgement system may exist, processes as early as possible, improves the security reliability of system.
To achieve these goals, embodiments of the invention provide a kind of satellite earth station wave carrier signal dynamic monitoring system, comprise: carrier wave dynamic monitoring subsystem and spectrum information processing subsystem, described carrier wave dynamic monitoring subsystem is connected with earth station satellite communication system, for carrying out Real-Time Monitoring and analysis to obtain corresponding signal spectrum data to being preset in the signal of multichannel intermediate frequency monitoring point in described earth station satellite communication system and rf monitoring point, wherein, described carrier wave dynamic monitoring subsystem comprises: a plurality of front end frequency-variable modules, multichannel input switching matrix, L frequency range frequency-variable module and digital signal processing module, wherein, described in each, front end frequency-variable module is for carrying out frequency translation to L frequency range by intermediate-freuqncy signal and the radiofrequency signal of the output of earth station satellite communication system, described multichannel input switching matrix and the corresponding connection of described a plurality of front end frequency-variable modules, for the multiple signals after the frequency translation from described a plurality of front end frequency-variable modules being selected to switching, and under the sequencing control of digital signal processing module each monitoring point of gating successively, described L frequency range frequency-variable module is connected with described multichannel input switching matrix, for the L frequency band signals frequency translation of described multichannel input switching matrix gating output is arrived to digital intermediate frequency section, and carries out signal amplitude adjustment, described digital signal processing module is connected with described L frequency range frequency-variable module with described multichannel input switching matrix respectively, for the digital medium-frequency signal from described L frequency range frequency-variable module is carried out to high-speed a/d sampling, and the data analysis after sampling is processed to generate corresponding signal spectrum data, described spectrum information processing subsystem is connected with described carrier wave dynamic monitoring subsystem, the signal spectrum data that send for receiving described digital signal processing module, and described signal spectrum data are managed and stored, and to described signal spectrum data analysis, and when finding fault, send alarm signal.
In one embodiment of the invention, described multichannel intermediate frequency monitoring point and rf monitoring point are preset at least following position of described earth station satellite communication system: intermediate frequency unit receiving branch, intermediate frequency unit send out a mouthful output total, intermediate frequency unit is received total mouthful of input, down-conversion Medium link output, up-conversion Medium link input, the RF-coupled input of down-conversion, low noise coupling output, the RF-coupled output of up-conversion, power amplifier coupling output and aerial radiation signal end.
In yet another embodiment of the present invention, described in each, front end frequency-variable module comprises: the first impedance matching box, described the first impedance matching box receives the radio-frequency input signals from described earth station satellite communication system, and described radio-frequency input signals is carried out to impedance matching; Frequency mixer, described frequency mixer is connected with frequency source with described the first impedance matching box, for the signal that described the first impedance matching box is carried out to signal after impedance matching and frequency source and provide, carries out Frequency mixing processing; Band pass filter, described band pass filter is connected with described frequency mixer, for the signal to after mixing, carries out bandpass filtering treatment; Amplifier, described amplifier is connected with described band pass filter, carries out signal amplify processing for the signal to after bandpass filtering; The second impedance matching box, described the second impedance matching box is connected with described amplifier, for the signal to after amplifying, carries out impedance matching with output L frequency band signals.
In another embodiment of the present invention, the bandwidth of described L frequency band signals is 500MHz.
In one embodiment of the invention, described multichannel input switching matrix comprises: a plurality of variable attenuators and a plurality of amplifier, wherein, each variable attenuator is corresponding with each amplifier to be connected, described in each, variable attenuator is connected with described digital signal processing module, described in each, variable attenuator is for receiving the L frequency band signals of described front end frequency-variable module output, described L frequency band signals is carried out to variable attenuation processing, and the signal after variable attenuation is processed is sent to corresponding amplifier, signal after described amplifier is processed described variable attenuation amplifies to obtain the signal after power is adjusted, first group of multi-channel electronic switch, described first group of multi-channel electronic switch is connected with described digital signal processing module with a part of amplifier in described a plurality of amplifiers, second group of multi-channel electronic switch, described second group of multi-channel electronic switch is connected with described digital signal processing module with another part amplifier in described a plurality of amplifiers, two-way electronic switch, described two-way electronic switch is connected with described digital signal processing module with described first group of multi-channel electronic switch, described second group of multi-channel electronic switch.
In yet another embodiment of the present invention, described L frequency range frequency-variable module to described L frequency band signals carry out double conversion, signal equalization, amplification processing and variable attenuation process with by the frequency translation of described L frequency band signals to digital intermediate frequency section, and carry out signal amplitude adjustment and export described digital signal processing module to.
In another embodiment of the present invention, described digital signal processing module comprises: analog-to-digital converter, described analog-to-digital converter receives the digital medium-frequency signal of described L frequency range frequency-variable module output, and described digital medium-frequency signal is carried out to analog-to-digital conversion; Fpga chip, described fpga chip is connected with described analog-to-digital converter, for the signal after analog-to-digital conversion being carried out to Digital Down Convert processing and digital filtering, process, and generate multichannel input switching matrix control signal and export described multichannel input switching matrix to, and generate L frequency range frequency-variable module control signal and export described L frequency range frequency-variable module to; Dsp chip, described dsp chip is connected with described fpga chip, for the signal after digital down-converted and digital filtering are processed, carry out fast fourier transform FFT conversion, and the calculating of carrier frequency, bandwidth and power algorithm of carrying out signal is to generate a plurality of supplemental characteristics of corresponding signal spectrum data and carrier signal; Network interface chip, described network interface chip is connected with described spectrum information processing subsystem with described dsp chip, for a plurality of supplemental characteristics of described signal spectrum data and carrier signal are transferred to described spectrum information processing subsystem.
In one embodiment of the invention, described spectrum information processing subsystem to signal spectrum data analysis to obtain the parameter of system works carrier wave, and the parameter of the running parameter of described system works carrier wave and default work carrier wave is compared, if the running parameter of described system works carrier wave surpasses the parameter of described default work carrier wave, generate alarm status and send alarm signal.
In yet another embodiment of the present invention, described spectrum information processing subsystem also positions system failure position the analysis result of described signal spectrum data and described alarm status for basis.
In another embodiment of the present invention, described spectrum information processing subsystem is also for to carrier spectrum with malfunction is stored and playback.
According to the satellite earth station carrier wave dynamic monitoring system of the embodiment of the present invention, multichannel intermediate frequency, radiofrequency signal to earth station satellite communication system gather, by multichannel, input switching matrix and realize continuous, the On-Line Dynamic Monitoring to multiple signals, and to result analyze, abnormal carrier spectrum on-line alarm and carrier spectrum storage and playback, thereby find as early as possible the ANOMALOUS VARIATIONS of carrier wave, the hidden danger that judgement system may exist, processes as early as possible, improves the security reliability of system.
The aspect that the present invention is additional and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination obviously and is easily understood becoming the description of embodiment, wherein:
Fig. 1 is according to the structure chart of the satellite earth station carrier wave dynamic monitoring system of the embodiment of the present invention;
Fig. 2 is according to the structure chart of the front end frequency-variable module of the embodiment of the present invention;
Fig. 3 is according to the structure chart of the multichannel input switching matrix of the embodiment of the present invention;
Fig. 4 is according to the structure chart of the L frequency range frequency-variable module of the embodiment of the present invention;
Fig. 5 is according to the structure chart of the digital signal processing module of the embodiment of the present invention.
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
As shown in Figure 1, the satellite earth station carrier wave dynamic monitoring system 10 of the embodiment of the present invention comprises carrier wave dynamic monitoring subsystem 1 and spectrum information processing subsystem 2.
First the structure that the earth is turned to satellite communication system 20 is described.Earth satellite communication system 20 comprises that satellite antenna 21, low noise processor 22, power amplifier 23, low-converter 24, upconverter 25, intermediate frequency distribute synthesis unit 26, a plurality of modulator-demodulator 27 and a plurality of terminal equipment 28, wherein, modulator-demodulator and terminal equipment one by one correspondence communicate.Wherein, the outside transmitting antenna radiation signal of satellite antenna 21, the aerial radiation signal of 22 pairs of satellite antennas 21 of low noise processor carries out low noise processing, output low noise coupled signal, is sent to low-converter 24 by the signal after processing and carries out down-converted and export the RF-coupled signal of down-conversion, down-conversion Medium link signal and intermediate frequency unit and receive total mouthful of coupled signal.Low-converter 24 is sent to intermediate frequency by the signal after down-converted and distributes synthesis unit 26.Intermediate frequency distributes synthesis unit 26 to communicate with each modulator-demodulator 27 respectively, and each modulator-demodulator 27 further communicates with corresponding terminal equipment 28.Intermediate frequency distribute synthesis unit 26 by processings afterwards signal be sent to upconverter 25, and externally export intermediate frequency unit and send out a mouthful coupled signal total.Upconverter 25 output up-conversion Medium link signal and the RF-coupled signals of up-conversion.Upconverter 25 is sent to power amplifier 23 by the signal after up-conversion, and 23 pairs of signals of power amplifier carry out power amplification processing, output power amplifier coupled signal, and the signal after power amplification is sent to satellite antenna 21.
Specifically, carrier wave dynamic monitoring subsystem 1 is connected with earth station satellite communication system 20, for carrying out Real-Time Monitoring and analyze to obtain corresponding signal spectrum data being preset in the signal of multichannel intermediate frequency monitoring point in earth station satellite communication system 20 and rf monitoring point.Wherein, carrier wave dynamic monitoring subsystem 1 can be carried out following functions: the functions such as frequency translation, power adjustment, diverter switch control, A/D conversion, Digital Down Convert, digital filtering, carrier wave analysis, bandwidth analysis, carrier power analysis, send signal spectrum data to spectrum information treatment system 2 by network interface.
In one embodiment of the invention, multichannel intermediate frequency monitoring point and rf monitoring point are preset at least following position of earth station satellite communication system 20: 10 positions such as intermediate frequency unit receiving branch, intermediate frequency unit send out a mouthful output total, intermediate frequency unit is received total mouthful of input, down-conversion Medium link output, up-conversion Medium link input, the RF-coupled input of down-conversion, low noise coupling output, the RF-coupled output of up-conversion, power amplifier coupling output and aerial radiation signal end.
It should be noted that, designer can arrange according to 20 pairs of multichannel intermediate frequency monitoring points of concrete earth station satellite communication system and rf monitoring point.
Particularly, carrier wave dynamic monitoring subsystem 1 comprises a plurality of front end frequency-variable modules 11, multichannel input switching matrix 12, L frequency range frequency-variable module 13 and digital signal processing module 14.
Specifically, each front end frequency-variable module 11 is for carrying out frequency translation to L frequency range by intermediate-freuqncy signal and the radiofrequency signal of 20 outputs of earth station satellite communication system.The operation principle of front end frequency-variable module 11 is, by single-conversion, radiofrequency signal is transformed to L frequency range output signal.Radiofrequency signal is exported after impedance matching, mixing, filtering, amplifier.
As shown in Figure 2, each front end frequency-variable module 11 comprises the first impedance matching box 111, frequency mixer 112, band pass filter 113, amplifier 114 and the second impedance matching box 115.Wherein, the radio-frequency input signals that the first impedance matching box 111 receives from earth station satellite communication system 20, and radio-frequency input signals is carried out to impedance matching.Frequency mixer 112 is connected with frequency source 116 with the first impedance matching box 111, for the signal that the first impedance matching box 111 is carried out to signal after impedance matching and frequency source 116 and provide, carries out Frequency mixing processing.Band pass filter 113 is connected with frequency mixer 112, for the signal to after mixing, carries out bandpass filtering treatment.Amplifier 114 is connected with band pass filter 113, carries out signal amplify processing for the signal to after bandpass filtering.The second impedance matching box 115 is connected with amplifier 114, for the signal to after amplifying, carries out impedance matching with output L frequency band signals.
In an example of the present invention, the bandwidth of L frequency band signals is 500MHz.
Multichannel input switching matrix 12 and the corresponding connection of a plurality of front end frequency-variable modules 11, for the multiple signals after the frequency translation from a plurality of front end frequency-variable modules 11 being selected to switching, and under the sequencing control of digital signal processing module 14 each monitoring point of gating successively.
As shown in Figure 3, multichannel input switching matrix 12 comprises a plurality of variable attenuators 121 and a plurality of amplifier 122, first group of multi-channel electronic switch 123, second group of multi-channel electronic switch 124 and two-way electronic switch 125.Wherein, each variable attenuator 121 is corresponding with each amplifier 122 is connected.Each variable attenuator 121, for the L frequency band signals of receiving front-end frequency-variable module 11 outputs, carries out variable attenuation processing to L frequency band signals, and the signal after variable attenuation is processed is sent to corresponding amplifier 122.Signal after 122 pairs of variable attenuations of amplifier are processed amplifies to obtain the signal after power is adjusted.First group of multi-channel electronic switch 123 is connected with digital signal processing module 14 with a part of amplifier in a plurality of amplifiers 122.Second group of multi-channel electronic switch 124 is connected with digital signal processing module 14 with another part amplifier in a plurality of amplifiers 122.Two-way electronic switch 125 and first group of multi-channel electronic switch 123, second group of multi-channel electronic switch 124 are connected with digital signal processing module 14.
Carry out after power adjustment signal through variable attenuator, amplifier at L frequency range input signal on multichannel input switching matrix 12 each road, exports to multi-channel electronic switch and two-way electronic switch, selects output after the signal controlling through coming from digital signal processing module 14.Multichannel input switching matrix 12 can be realized the multiple switching modes such as single channel selection, cyclic switching and selection switching, complete the selection handoff functionality of 10 road signals, each monitoring point of gating successively under the sequencing control of the control signal of digital signal processing module 14 output, realizes multiple signals fast monitored thus.The existing scheme by frequency spectrograph monitor satellite earth station carrier spectrum can only be observed a road signal simultaneously, monitoring when cannot realize multiple signals, and satellite earth station of the present invention carrier wave dynamic monitoring system 10 switches between multichannel input signal fast by increasing multichannel input switching matrix, thereby reach the function of fast monitored multiple signals.
L frequency range frequency-variable module 13 is connected with multichannel input switching matrix 12, arrives digital intermediate frequency section, and carry out signal amplitude adjustment for multichannel being inputted to the L frequency band signals frequency translation of switching matrix 12 gating outputs.Fig. 4 shows the structure chart of L frequency range frequency-variable module 13.In one embodiment of the invention, 13 pairs of L frequency band signals of L frequency range frequency-variable module carry out double conversion, signal equalization, amplification processing and variable attenuation process with by the frequency translation of L frequency band signals to digital intermediate frequency section, and carry out signal amplitude adjustment and export digital signal processing module 14 to.
Digital signal processing module 14 is connected with L frequency range frequency-variable module 13 with multichannel input switching matrix 12 respectively, for the digital medium-frequency signal from L frequency range frequency-variable module 13 is carried out to high-speed a/d sampling, and the data analysis after sampling is processed to generate corresponding signal spectrum data.
As shown in Figure 5, digital signal processing module 14, based on CPCI framework, comprises analog-to-digital converter 141, fpga chip 142, dsp chip 143 and network interface chip 144.Wherein, analog-to-digital converter 141 receives the digital medium-frequency signal of L frequency range frequency-variable module 13 outputs, and digital medium-frequency signal is carried out to analog-to-digital conversion.Fpga chip 142 is connected with analog-to-digital converter 141, for the signal after analog-to-digital conversion being carried out to Digital Down Convert processing and digital filtering, process, and generate multichannel input switching matrix control signal and export multichannel input switching matrix 12 to, and generate L frequency range frequency-variable module 13 and export L frequency range frequency-variable module 13 to.Dsp chip 143 is connected with fpga chip 142, for the signal after digital down-converted and digital filtering are processed, carry out fast fourier transform FFT conversion, and the calculating of carrier frequency, bandwidth and power algorithm of carrying out signal is to generate a plurality of supplemental characteristics of corresponding signal spectrum data and carrier signal.Network interface chip 144 is connected with spectrum information processing subsystem 2 with dsp chip 143, for a plurality of supplemental characteristics of signal spectrum data and carrier signal are transferred to spectrum information processing subsystem 2.
In one embodiment of the invention, network interface chip 144 can be gigabit Ethernet mouth.
To sum up, digital signal processing module 14 is mainly realized A/D conversion, digital filtering, the functions such as signal carrier frequency, bandwidth and power analysis.Digital medium-frequency signal is after the AD sampling of analog-to-digital converter (A/D converter) 141, by fpga chip 142 carry out Digital Down Convert, digital filtering is processed, the carrier frequency, bandwidth and the power algorithm that by dsp chip 143, carry out FFT and signal again calculate, and produce the frequency spectrum data of digital signal and the parameters data of carrier signal.
14 pairs of digital medium-frequency signals of digital signal processing module are analyzed, and produce spectrum of carrier data and signal parameter information.The analog-to-digital converter of digital signal processing module (A/D converter) 141 carries out high-speed a/d sampling to signal on digital intermediate frequency.Data after sampling are carried out multi-channel DDC, CIC filtering, FFT under based on FPGA+DSP digital processing framework, produce the frequency spectrum data of signal.143 pairs of frequency spectrum data analyses of dsp chip produce the parameter informations such as the centre frequency, bandwidth, power of carrier signal afterwards, by network interface, send information to spectrum information processing subsystem 2.
Satellite earth station of the present invention carrier wave dynamic monitoring system 10 also comprises clock module, control module and power module.Wherein, clock module can provide 10MHz stable clock signal for each frequency-variable module and the digital signal processing module 14 of system.Control module is comprised of demonstration, keyboard and the control board of equipment, mainly completes the complementary operation of dynamic monitoring terminal, as the operating state indication of equipment, power supply status, the operating state of each module etc.Power module can provide direct voltage for other modules.
Spectrum information processing subsystem 2 is connected with carrier wave dynamic monitoring subsystem 1, the signal spectrum data that send for receiving digital signal processing module 14, and signal spectrum data are managed and stored, and to signal spectrum data analysis, and when finding fault, send alarm signal.
Particularly, 2 pairs of signal spectrum data analysis of spectrum information processing subsystem are to obtain the parameter of system works carrier wave, and the parameter of the running parameter of system works carrier wave and default work carrier wave is compared, if the running parameter of system works carrier wave surpasses the parameter of default work carrier wave, generate alarm status and send alarm signal.
Spectrum information processing subsystem 2 can be realized the on-line alarm of carrier spectrum: satellite earth station carrier wave dynamic monitoring system 10 is by observation multichannel input signal, in analytic signal, the running parameter of system works carrier wave is as centre frequency, power, bandwidth etc., and then compare with the parameter of the work carrier wave of setting, carry out alarm after exceeding the scope of setting.
In one embodiment of the invention, spectrum information processing subsystem 2 is also for positioning system failure position according to the analysis result of signal spectrum data and alarm status.
Spectrum information processing subsystem 2 can be realized the quick location of satellite earth station carrier failure: satellite earth station carrier wave dynamic monitoring system 10 is by the carrier spectrum signal analysis to a plurality of service positions of earth station satellite communication system 20, in conjunction with the alarm status producing, can judge fast the position of the system failure, realize the quick location of earth station satellite communication system fault.
In addition, spectrum information processing subsystem 2 is also for to carrier spectrum with malfunction is stored and playback.
Spectrum information processing subsystem 2 can be realized carrier spectrum storage, playback function: satellite earth station carrier wave dynamic monitoring system 10 is by carrier wave dynamic monitoring software, can store observation spectrum of carrier, user when needed can playback carrier spectrum and the malfunction of storage.
Spectrum information processing subsystem 2 can consist of computer hardware platforms and carrier wave dynamic monitoring software, for spectrum of carrier data being managed, store, analysis, alarm.The major function of spectrum information processing subsystem 2 comprises: the functions such as user management, data storage, frequency spectrum demonstration, fault warning, frequency spectrum playback.
Particularly, spectrum information processing subsystem 2 mainly completes following function:
(1) storage of spectrum information, management function: the data of storage monitoring frequency spectrum, and can carry out on request playback.
(2) daily record of work management function: preserve the real-time operation record of login user, according to inquiring about user and chronological classification daily record of work, delete daily record of work.
(3) alarm event management function: point out in modes such as sound, words when monitoring frequency spectrum parameter breaks down, preserve alarm event; By in-problem equipment in a plurality of synchronous alarm prediction systems, and point out.According to classification query event information such as monitoring location, times, Query Result can rearrange by selected parameter, deletes alarm event record.
(4) event statistical function: according to parameters such as logout statistics normal working hours, alarm quantity, fault times.
(5) logout output function: logout can be generated to WORD format file and directly print.
(6) safety management function: comprise that user logins, nullifies function, operator adds deletion, Modify password, authority function is set etc.
(7) file input function: it is mutual to carry out by the file of certain format system parameters.
(8) panorama spectrum monitoring function: can show whole frequency spectrums in the whole transponder in monitoring point.
(9) passage spectrum monitoring function: can show monitoring channel intercarrier frequency spectrum, and measured carrier information is provided, as carried wave frequency, power, bandwidth and signal to noise ratio etc.
(10) alarm event Presentation Function: the current monitoring frequency spectrum parameter of the prompt system situation that breaks down.
According to the satellite earth station carrier wave dynamic monitoring system of the embodiment of the present invention, multichannel intermediate frequency to earth station satellite communication system, radiofrequency signal gathers, by multichannel input switching matrix realize to multiple signals continuously, On-Line Dynamic Monitoring, and result is analyzed, abnormal carrier spectrum on-line alarm and carrier spectrum storage and playback, thereby effective monitor satellite communication system operating state, determine and record the ruuning situation of each traffic carrier, the anomaly that system is occurred is carried out in time, locate accurately and process, find as early as possible the ANOMALOUS VARIATIONS of carrier wave, the hidden danger that judgement system may exist, process as early as possible, the security reliability of raising system.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention in the situation that not departing from principle of the present invention and aim, modification, replacement and modification.Scope of the present invention is extremely equal to and limits by claims.
Claims (10)
1.Yi Zhong satellite earth station carrier wave dynamic monitoring system, is characterized in that, comprising: carrier wave dynamic monitoring subsystem and spectrum information processing subsystem,
Described carrier wave dynamic monitoring subsystem is connected with earth station satellite communication system, for carrying out Real-Time Monitoring and analysis to obtain corresponding signal spectrum data to being preset in the signal of multichannel intermediate frequency monitoring point in described earth station satellite communication system and rf monitoring point, wherein, described carrier wave dynamic monitoring subsystem comprises: a plurality of front end frequency-variable modules, multichannel input switching matrix, L frequency range frequency-variable module and digital signal processing module, wherein
Described in each, front end frequency-variable module is for carrying out frequency translation to L frequency range by intermediate-freuqncy signal and the radiofrequency signal of the output of earth station satellite communication system;
Described multichannel input switching matrix and the corresponding connection of described a plurality of front end frequency-variable modules, for the multiple signals after the frequency translation from described a plurality of front end frequency-variable modules being selected to switching, and under the sequencing control of digital signal processing module each monitoring point of gating successively;
Described L frequency range frequency-variable module is connected with described multichannel input switching matrix, for the L frequency band signals frequency translation of described multichannel input switching matrix gating output is arrived to digital intermediate frequency section, and carries out signal amplitude adjustment;
Described digital signal processing module is connected with described L frequency range frequency-variable module with described multichannel input switching matrix respectively, for the digital medium-frequency signal from described L frequency range frequency-variable module is carried out to high-speed a/d sampling, and the data analysis after sampling is processed to generate corresponding signal spectrum data;
Described spectrum information processing subsystem is connected with described carrier wave dynamic monitoring subsystem, the signal spectrum data that send for receiving described digital signal processing module, and described signal spectrum data are managed and stored, and to described signal spectrum data analysis, and when finding fault, send alarm signal.
2. satellite earth station as claimed in claim 1 carrier wave dynamic monitoring system, it is characterized in that, described multichannel intermediate frequency monitoring point and rf monitoring point are preset at least following position of described earth station satellite communication system: intermediate frequency unit receiving branch, intermediate frequency unit send out a mouthful output total, intermediate frequency unit is received total mouthful of input, down-conversion Medium link output, up-conversion Medium link input, the RF-coupled input of down-conversion, low noise coupling output, the RF-coupled output of up-conversion, power amplifier coupling output and aerial radiation signal end.
3. satellite earth station as claimed in claim 1 carrier wave dynamic monitoring system, is characterized in that, described in each, front end frequency-variable module comprises:
The first impedance matching box, described the first impedance matching box receives the radio-frequency input signals from described earth station satellite communication system, and described radio-frequency input signals is carried out to impedance matching;
Frequency mixer, described frequency mixer is connected with frequency source with described the first impedance matching box, for the signal that described the first impedance matching box is carried out to signal after impedance matching and frequency source and provide, carries out Frequency mixing processing;
Band pass filter, described band pass filter is connected with described frequency mixer, for the signal to after mixing, carries out bandpass filtering treatment;
Amplifier, described amplifier is connected with described band pass filter, carries out signal amplify processing for the signal to after bandpass filtering;
The second impedance matching box, described the second impedance matching box is connected with described amplifier, for the signal to after amplifying, carries out impedance matching with output L frequency band signals.
4. satellite earth station as claimed in claim 1 carrier wave dynamic monitoring system, is characterized in that, the bandwidth of described L frequency band signals is 500MHz.
5. satellite earth station as claimed in claim 1 carrier wave dynamic monitoring system, is characterized in that, described multichannel input switching matrix comprises:
A plurality of variable attenuators and a plurality of amplifier, wherein, each variable attenuator is corresponding with each amplifier to be connected, described in each, variable attenuator is connected with described digital signal processing module, described in each, variable attenuator is for receiving the L frequency band signals of described front end frequency-variable module output, described L frequency band signals is carried out to variable attenuation processing, and the signal after variable attenuation processing is sent to corresponding amplifier, the signal after described amplifier is processed described variable attenuation amplifies to obtain the signal after power is adjusted;
First group of multi-channel electronic switch, described first group of multi-channel electronic switch is connected with described digital signal processing module with a part of amplifier in described a plurality of amplifiers;
Second group of multi-channel electronic switch, described second group of multi-channel electronic switch is connected with described digital signal processing module with another part amplifier in described a plurality of amplifiers;
Two-way electronic switch, described two-way electronic switch is connected with described digital signal processing module with described first group of multi-channel electronic switch, described second group of multi-channel electronic switch.
6. satellite earth station as claimed in claim 1 carrier wave dynamic monitoring system, it is characterized in that, described L frequency range frequency-variable module to described L frequency band signals carry out double conversion, signal equalization, amplification processing and variable attenuation process with by the frequency translation of described L frequency band signals to digital intermediate frequency section, and carry out signal amplitude adjustment and export described digital signal processing module to.
7. satellite earth station as claimed in claim 1 carrier wave dynamic monitoring system, is characterized in that, described digital signal processing module comprises:
Analog-to-digital converter, described analog-to-digital converter receives the digital medium-frequency signal of described L frequency range frequency-variable module output, and described digital medium-frequency signal is carried out to analog-to-digital conversion;
Fpga chip, described fpga chip is connected with described analog-to-digital converter, for the signal after analog-to-digital conversion being carried out to Digital Down Convert processing and digital filtering, process, and generate multichannel input switching matrix control signal and export described multichannel input switching matrix to, and generate L frequency range frequency-variable module control signal and export described L frequency range frequency-variable module to;
Dsp chip, described dsp chip is connected with described fpga chip, for the signal after digital down-converted and digital filtering are processed, carry out fast fourier transform FFT conversion, and the calculating of carrier frequency, bandwidth and power algorithm of carrying out signal is to generate a plurality of supplemental characteristics of corresponding signal spectrum data and carrier signal;
Network interface chip, described network interface chip is connected with described spectrum information processing subsystem with described dsp chip, for a plurality of supplemental characteristics of described signal spectrum data and carrier signal are transferred to described spectrum information processing subsystem.
8. satellite earth station as claimed in claim 1 carrier wave dynamic monitoring system, it is characterized in that, described spectrum information processing subsystem to signal spectrum data analysis to obtain the parameter of system works carrier wave, and the parameter of the running parameter of described system works carrier wave and default work carrier wave is compared, if the running parameter of described system works carrier wave surpasses the parameter of described default work carrier wave, generate alarm status and send alarm signal.
9. satellite earth station as claimed in claim 8 carrier wave dynamic monitoring system, is characterized in that, described spectrum information processing subsystem also positions system failure position the analysis result of described signal spectrum data and described alarm status for basis.
10. satellite earth station as claimed in claim 1 carrier wave dynamic monitoring system, is characterized in that, described spectrum information processing subsystem is also for to carrier spectrum with malfunction is stored and playback.
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| CN201410215771.2A CN103973384B (en) | 2014-05-21 | 2014-05-21 | A kind of satellite earth station carrier wave dynamic monitoring system |
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| CN107154827A (en) * | 2016-03-03 | 2017-09-12 | 北京航天飞行控制中心 | The collection in real time of satellite communication broader frequency spectrum and analysis method, monitoring method and system |
| CN107404623A (en) * | 2017-07-10 | 2017-11-28 | 中国民用航空总局第二研究所 | The remote receiver and method of multipoint location system based on CPCI frameworks |
| CN107864008A (en) * | 2017-12-07 | 2018-03-30 | 李剑阳 | A kind of modular satellite communication earth station simulated training system |
| CN108063682A (en) * | 2017-10-25 | 2018-05-22 | 合肥润东通信科技股份有限公司 | Telecommunication network intelligent diagnosis system and its method based on Fast Fourier Transform |
| CN108123761A (en) * | 2017-12-21 | 2018-06-05 | 中国电子科技集团公司第五十四研究所 | A kind of test of satellite communication earth station power reference value and computational methods |
| CN112087251A (en) * | 2020-07-21 | 2020-12-15 | 中国电子科技集团公司第七研究所 | Ultra-wideband satellite communication carrier monitoring system |
| CN113794484A (en) * | 2021-09-14 | 2021-12-14 | 北京坤驰科技有限公司 | Radio frequency recorder and case |
| CN114039642A (en) * | 2021-10-11 | 2022-02-11 | 西安空间无线电技术研究所 | High-speed Ka frequency range repeater system with large bandwidth and adjustable frequency |
| 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 |
| CN114665953A (en) * | 2022-04-15 | 2022-06-24 | 中国电子科技集团公司第五十四研究所 | Anomaly detection and reproduction method for satellite communication system |
| CN115765834A (en) * | 2022-10-31 | 2023-03-07 | 西安空间无线电技术研究所 | Broadband satellite feeder link receiving channel system |
| CN116865835A (en) * | 2023-08-08 | 2023-10-10 | 中国人民解放军61035部队 | Portable detection system and method for satellite communication portable station |
| CN118449586A (en) * | 2024-07-05 | 2024-08-06 | 西安彼睿电子科技有限公司 | Low-orbit satellite carrier monitoring system based on satellite-ground cooperative processing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107154827A (en) * | 2016-03-03 | 2017-09-12 | 北京航天飞行控制中心 | The collection in real time of satellite communication broader frequency spectrum and analysis method, monitoring method and system |
| CN107404623A (en) * | 2017-07-10 | 2017-11-28 | 中国民用航空总局第二研究所 | The remote receiver and method of multipoint location system based on CPCI frameworks |
| CN107404623B (en) * | 2017-07-10 | 2020-06-23 | 中国民用航空总局第二研究所 | Remote receiver and method of multipoint positioning system based on CPCI architecture |
| CN108063682A (en) * | 2017-10-25 | 2018-05-22 | 合肥润东通信科技股份有限公司 | Telecommunication network intelligent diagnosis system and its method based on Fast Fourier Transform |
| CN107864008A (en) * | 2017-12-07 | 2018-03-30 | 李剑阳 | A kind of modular satellite communication earth station simulated training system |
| CN108123761A (en) * | 2017-12-21 | 2018-06-05 | 中国电子科技集团公司第五十四研究所 | A kind of test of satellite communication earth station power reference value and computational methods |
| CN112087251B (en) * | 2020-07-21 | 2022-05-27 | 中国电子科技集团公司第七研究所 | Ultra-wideband satellite communication carrier monitoring system |
| CN112087251A (en) * | 2020-07-21 | 2020-12-15 | 中国电子科技集团公司第七研究所 | Ultra-wideband satellite communication carrier monitoring system |
| CN113794484A (en) * | 2021-09-14 | 2021-12-14 | 北京坤驰科技有限公司 | Radio frequency recorder and case |
| CN114039642A (en) * | 2021-10-11 | 2022-02-11 | 西安空间无线电技术研究所 | High-speed Ka frequency range repeater system with large bandwidth and adjustable frequency |
| CN114039642B (en) * | 2021-10-11 | 2024-03-26 | 西安空间无线电技术研究所 | High-speed Ka frequency band repeater system with large bandwidth and adjustable frequency |
| 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 |
| CN114665953A (en) * | 2022-04-15 | 2022-06-24 | 中国电子科技集团公司第五十四研究所 | Anomaly detection and reproduction method for satellite communication system |
| CN114665953B (en) * | 2022-04-15 | 2024-01-26 | 中国电子科技集团公司第五十四研究所 | Anomaly detection and reproduction method for satellite communication system |
| CN115765834A (en) * | 2022-10-31 | 2023-03-07 | 西安空间无线电技术研究所 | Broadband satellite feeder link receiving channel system |
| CN115765834B (en) * | 2022-10-31 | 2024-06-04 | 西安空间无线电技术研究所 | Broadband satellite feed link receiving channel system |
| CN116865835A (en) * | 2023-08-08 | 2023-10-10 | 中国人民解放军61035部队 | Portable detection system and method for satellite communication portable station |
| CN116865835B (en) * | 2023-08-08 | 2024-01-23 | 中国人民解放军61035部队 | Portable detection system and method for satellite communication portable station |
| CN118449586A (en) * | 2024-07-05 | 2024-08-06 | 西安彼睿电子科技有限公司 | Low-orbit satellite carrier monitoring system based on satellite-ground cooperative processing |
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