CN104135738A - Monitoring device for mobile communication - Google Patents
Monitoring device for mobile communication Download PDFInfo
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- CN104135738A CN104135738A CN201410231643.7A CN201410231643A CN104135738A CN 104135738 A CN104135738 A CN 104135738A CN 201410231643 A CN201410231643 A CN 201410231643A CN 104135738 A CN104135738 A CN 104135738A
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Abstract
The embodiment of the invention provides a monitoring device for mobile communication, and aims to solve the problems of single monitoring signals, poor compatibility and poor flexibility in a conventional monitoring device. The device comprises a radio frequency amplifier, a filter bank, a frequency mixer, a medium-frequency processor and an analog-to-digital converter which are connected in sequence, wherein an antenna signal enters the filter bank after being processed by the radio frequency amplifier; and a filter corresponding to a communication system is selected from the filter bank to perform filtering processing. The signal which is subjected to the filtering processing is transmitted to the medium-frequency processor after being subjected to down-conversion through the frequency mixer, and different processing channels are selected in the medium-frequency processor according to different communication systems, so that communication signals of various different systems can be effectively monitored. The monitoring device is suitable for a multi-system scene, in particular for complex tasks in which a plurality of systems coexist, can make quick responses effectively, and has high compatibility and high flexibility.
Description
Technical field
The present invention relates to XX technical field, particularly relate to a kind of monitoring device of mobile communication.
Background technology
Be accompanied by the fast development of radio communication, civilian wireless communication system enters into the 4th Generation Mobile Communication System.
For different communication systems, according to communication general principle, there is all multi-communication standards, for example 2G (2-Generation wireless telephone technology, Generation Mobile Telecommunication System technology) GSM (Global System for Mobile communication, global system for mobile communications), 3G (3rd-Generation, 3G (Third Generation) Moblie technology) CDMA2000 (Code Division Multiple Access2000), W-CDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA)) and TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, TD SDMA), 4G (the4Generation mobile communication technology, the 4th third-generation mobile communication technology) TD-LTE (Time Division Long Term Evolution, time-division Long Term Evolution), FDD-LTE (Frequency Division Duplexing Long Term Evolution, time division duplex Long Term Evolution) etc. standard, they have their own characteristics each, have a style of one's own, under no demand, bringing into play different important function.
Along with the development of the communication technology, use the user of the mobile communication technologies such as mobile phone also more and more, based on some factors such as safely, can monitor the user of mobile communication, as in the field such as criminal investigation, Guoan, some users are monitored, can carry out investigations fast and effectively and arrest, can ensure efficiently the normal and people's of national economy order various normal law rights and interests.
But owing to storing above-mentioned multiple different communication standard in communication, its Principle of Communication is different, normally adopts different equipment to monitor the signal of communication under different communication standard.This monitoring device can not adapt to multi-modulation scheme scene efficiently, particularly complexity relate to multi-modulation scheme and deposit task in, audiomonitor memory reply effectively, compatible and flexibility is very poor, even likely there is actual situation about cannot monitor.
Summary of the invention
Embodiment of the present invention technical problem to be solved is to provide a kind of monitoring device of mobile communication, single to solve existing monitoring device monitoring signal, the compatible and poor problem of flexibility.
In order to address the above problem, the invention discloses a kind of monitoring device of mobile communication, comprising: the radio frequency amplifier, bank of filters, frequency mixer, intermediate frequency processor and the analog to digital converter that connect successively; Wherein, described radio frequency amplifier, receives the aerial signal that is entered the selected communication standard of port transmission by receiver, and described aerial signal is amplified and is amplified signal, and described amplifying signal is transferred to described bank of filters; Described bank of filters, adopts filter corresponding to described selected communication standard to receive described amplifying signal, described amplifying signal is carried out to filtering processing and obtain the first filtering signal, and described the first filtering signal is transferred to described frequency mixer; Described frequency mixer, carries out down-converted to described the first filtering signal and obtains frequency variation signal, and described frequency variation signal is transferred to described intermediate frequency processor; Described intermediate frequency processor, selects treatment channel according to described selected communication standard, described frequency variation signal is carried out to intermediate frequency process and obtain intermediate-freuqncy signal, and described intermediate-freuqncy signal is transferred to described analog to digital converter; Wherein adopt the first treatment channel to receive frequency variation signal corresponding to global system for mobile communications GSM standard, and adopt the second treatment channel to receive the frequency variation signal of other communication standards except GSM standard; And in the time that described frequency variation signal is GSM standard, in intermediate frequency process, according to bandwidth information, described frequency variation signal is carried out at least one-level and amplify processing; Described analog to digital converter, carries out analog-to-digital conversion to described intermediate-freuqncy signal and obtains digital signal.
Optionally, described radio frequency amplifier comprises: switch optional amplifier and primary scene programmable gate array FPGA, and wherein said switch optional amplifier selects the amplification path that comprises amplifier or the bypass path that does not comprise amplifier by double control switch; Described primary scene programmable gate array FPGA connects described switch optional amplifier, described primary scene programmable gate array FPGA is controlled the switch of described double control switch optional amplifier according to the power information of aerial signal, and amplification path or the bypass path of selector switch optional amplifier are processed and are amplified signal described aerial signal.
Optionally, described switch optional amplifier comprises: the first switch optional amplifier and second switch optional amplifier; Wherein, described the first switch optional amplifier, primary scene programmable gate array FPGA are connected successively with second switch optional amplifier; Described primary scene programmable gate array FPGA connects first of described first order switch optional amplifier according to power information control first double control switch of described aerial signal and amplifies path or the first bypass path, obtain described the first switch optional amplifier and process the power information of the first signal that obtains of aerial signal, connect described second switch optional amplifier second according to power information control second double control switch of described first signal and amplify path or the second bypass path; Described second switch optional amplifier is processed described first signal and is amplified signal.
Optionally, described bank of filters comprises at least two kinds of filters that communication standard is corresponding, and more-control switch; Described bank of filters, according to more-control switch described in described selected communication standard control, be communicated with the path of the filter that described selected communication standard is corresponding, adopt filter that described selected communication standard is corresponding to carry out filtering processing to described amplifying signal and obtain first signal, and described the first filtering signal is transferred to described frequency mixer.
Optionally, the first treatment channel of described intermediate frequency processor comprises: the first band pass filter, the 3rd switch optional amplifier, the first adjustable damping, the first amplifier and the second band pass filter that connect successively; In described intermediate frequency processor, described the first band pass filter carries out filtering processing to frequency variation signal corresponding to described global system for mobile communications GSM standard and obtains filtering frequency variation signal after treatment; According to the 3rd double control switch selection path described in the bandwidth information control of described filtering frequency variation signal after treatment, to process by described the first adjustable damping, the first amplifier and the second band pass filter successively by described the 3rd switch optional amplifier signal after treatment, obtain intermediate-freuqncy signal.
Optionally, the first treatment channel of described intermediate frequency processor also comprises: secondary scene programmable gate array FPGA; Programmable gate array FPGA one end, the described secondary scene connects described the first band pass filter, and the other end connects described the 3rd switch optional amplifier; Described the 3rd switch optional amplifier comprises the 3rd double control switch, comprises the 3rd bypass path that the 3rd of amplifier amplifies path and do not comprise amplifier; Described secondary scene programmable gate array FPGA detects the bandwidth information of described filtering frequency variation signal after treatment, selects the 3rd to amplify path or the 3rd bypass path according to the 3rd double control switch of the 3rd switch optional amplifier described in described bandwidth information control.
Optionally, the second treatment channel of described intermediate frequency processor comprises: the 3rd band pass filter, the second adjustable damping, the second amplifier and the four-tape bandpass filter that connect successively; Intermediate frequency processor receives the frequency variation signal of other communication standards except GSM standard, by described except GSM standard the frequency variation signal of other communication standards process by the 3rd band pass filter, the second adjustable damping, the second amplifier and four-tape bandpass filter successively, obtain intermediate-freuqncy signal.
Optionally, also comprise: monitor processor; Described monitoring processor connects described analog to digital converter, and described monitoring processor receives the digital signal that described analog to digital converter is converted to, and described digital signal is carried out to the processing of each standard protocol-decoding.
Optionally, described except GSM standard other communication standards comprise following at least one: code division multiple access CDMA2000, Wideband Code Division Multiple Access (WCDMA) W-CDMA, TD SDMA TD-SCDMA, time-division Long Term Evolution TD-LTE and time division duplex Long Term Evolution FDD-LTE.
Compared with prior art, the embodiment of the present invention comprises following advantage:
Monitoring device adopts radio frequency amplifier, bank of filters, frequency mixer, intermediate frequency processor to be connected successively with analog to digital converter, aerial signal enters bank of filters after processing by radio frequency amplifier, wherein in bank of filters, selects the filter corresponding with communication standard to carry out filtering processing.Signal after treatment filtering is undertaken after down-conversion by frequency mixer, be transferred to intermediate frequency processor, in intermediate frequency processor according to the different treatment channel of the different choice of communication standard, thereby can effectively monitor the signal of communication of various different systems, adapt to multi-modulation scheme scene, particularly complexity relate to multi-modulation scheme and deposit task in, monitoring device memory reply effectively, has good compatibility and flexibility.
Brief description of the drawings
Fig. 1 is the structured flowchart of the monitoring device embodiment of a kind of mobile communication of the present invention;
Fig. 2 is the optional structured flowchart of the monitoring device embodiment of a kind of mobile communication of the present invention.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
One of core idea of the embodiment of the present invention is, a kind of monitoring device of mobile communication is proposed, adopt radio frequency amplifier, bank of filters, frequency mixer, intermediate frequency processor is connected successively with analog to digital converter, wherein in bank of filters, select the filter corresponding with communication standard to carry out filtering processing, and in intermediate frequency processor according to the different treatment channel of the different choice of communication standard, thereby can effectively monitor the signal of communication of various different systems, adapt to multi-modulation scheme scene, particularly complexity relate to multi-modulation scheme and deposit task in, monitoring device memory reply effectively, there is good compatibility and flexibility.
Embodiment mono-
With reference to Fig. 1, show the structured flowchart of the monitoring device embodiment of a kind of mobile communication of the present invention.
The monitoring device of this mobile communication comprises: radio frequency amplifier 101, bank of filters 102, frequency mixer 103, intermediate frequency processor 104 and analog to digital converter 105.
Wherein, radio frequency amplifier 101, bank of filters 102, frequency mixer 103, intermediate frequency processor 104 and analog to digital converter 105 are connected communication successively.
Radio frequency amplifier 101, receives the aerial signal that is entered the selected communication standard of port transmission by receiver, described aerial signal is carried out to power amplification and be amplified signal, and described amplifying signal is transferred to described bank of filters 102.
Bank of filters 102 comprises at least two group filter parallel joins, and bank of filters 102 comprises filter 1, filter 2 as shown in Figure 1 ... filter n, wherein n is greater than 1 integer.Bank of filters 102 is selected corresponding filter according to the communication standard of aerial signal, adopt filter corresponding to described selected communication standard to receive described amplifying signal, described amplifying signal is carried out to filtering processing and obtain the first filtering signal, and described the first filtering signal is transferred to described frequency mixer 103.
Frequency mixer 103 carries out down-converted to described the first filtering signal and obtains frequency variation signal, and described frequency variation signal is transferred to described intermediate frequency processor 104.
Intermediate frequency processor 104 comprises two treatment channel, select treatment channel according to described selected communication standard, equipment in the treatment channel that employing is selected carries out intermediate frequency process to described frequency variation signal and obtains intermediate-freuqncy signal, and described intermediate-freuqncy signal is transferred to described analog to digital converter 105.
Wherein, adopt the first treatment channel 1041 to receive frequency variation signal corresponding to GSM standard, and adopt the second treatment channel 1042 to receive the frequency variation signal of other communication standards except GSM standard.And in the time that described frequency variation signal is GSM standard, in intermediate frequency process, according to bandwidth information, the frequency variation signal of GSM standard is carried out at least one-level and amplify processing.
105 pairs of described intermediate-freuqncy signals of analog to digital converter (Analog-to-Digital Converter, ADC) are carried out analog-to-digital conversion and are obtained digital signal.
In sum, monitoring device adopts radio frequency amplifier, bank of filters, frequency mixer, intermediate frequency processor to be connected successively with analog to digital converter, aerial signal enters bank of filters after processing by radio frequency amplifier, wherein in bank of filters, selects the filter corresponding with communication standard to carry out filtering processing.Signal after treatment filtering is undertaken after down-conversion by frequency mixer, be transferred to intermediate frequency processor, in intermediate frequency processor according to the different treatment channel of the different choice of communication standard, thereby can effectively monitor the signal of communication of various different systems, adapt to multi-modulation scheme scene, particularly complexity relate to multi-modulation scheme and deposit task in, monitoring device memory reply effectively, has good compatibility and flexibility.
Embodiment bis-
With reference to Fig. 2, show the optional structured flowchart of the monitoring device embodiment of a kind of mobile communication of the present invention, specifically can comprise as lower module:
Radio frequency amplifier 101, bank of filters 102, frequency mixer 103, intermediate frequency processor 104, analog to digital converter 105 and monitoring processor 106.
Wherein, radio frequency amplifier 101 comprises switch optional amplifier and primary scene programmable gate array (Field-Programmable Gate Array, FPGA) 1012, wherein said switch optional amplifier selects the amplification path that comprises amplifier or the bypass path that does not comprise amplifier by double control switch.
A FPGA connects described switch optional amplifier, a described FPGA controls the switch of described double control switch optional amplifier according to the power information of aerial signal, and amplification path or the bypass path of selector switch optional amplifier are processed and are amplified signal described aerial signal.
In actual treatment, switch optional amplifier comprises the first switch optional amplifier 1011 and second switch optional amplifier 1013, and in radio frequency amplifier 101, the first switch optional amplifier 1011, a FPGA1012 are connected successively with second switch optional amplifier 1013.
In the first switch optional amplifier 1011, comprise by being arranged in the selection of two ends the first double control switch control first order switch optional amplifier 1011 paths the first bypass path 10112 that first of power amplifier amplifies path 10111 or selects not comprise power amplifier; In second switch optional amplifier 1012, comprise by being arranged in the selection of two ends the second double control switch control second switch optional amplifier 1012 paths the second bypass path 10122 that second of power amplifier amplifies path 10121 or selects not comprise power amplifier.
Wherein, owing to being positioned at the double control switch at switch optional amplifier two ends and need to connecting same path and could realize the conducting of this path simultaneously, therefore the double control switch at two ends is not distinguished, the connection that those skilled in the art can understand double control switch control access refers to the double control switch at switch optional amplifier two ends.
The one FPGA1012 connects first of described the first switch optional amplifier 1011 according to power information control first double control switch of described aerial signal and amplifies path 10111 or the first bypass path 10112, obtain described the first switch optional amplifier and process the power information of the first signal that obtains of aerial signal, connect described second switch optional amplifier 1,012 second according to power information control second double control switch of described first signal and amplify path 10121 or the second bypass paths 10122.
For example, in monitoring device shown in Fig. 2, radio frequency amplifier 101 is in the time carrying out radio frequency amplification processing, in the middle of two-stage switch optional amplifier, be provided with power monitoring point, its monitoring result Real-time Feedback is given a FPGA1012, and a FPGA1012, according to the watt level detecting, carries out gating to this two-stage switch optional amplifier.
As when the be less than-30dBm of power magnitude of input signal (aerial signal), gating uses dual-stage amplifier to amplify, be that first of gating the first switch optional amplifier 1011 amplifies path 10111, and the second amplification path 10121 of gating second switch optional amplifier 1012.In the time of be greater than-30dBm of input signal power amplitude and be less than-10dBm, gating first order amplifier, bypass second level amplifier, first of gating the first switch optional amplifier 1011 amplifies path 10111, and the second bypass path 10122 of gating second switch optional amplifier 1012.As be greater than-10dBm of input signal power amplitude and while being less than 5dBm, bypass dual-stage amplifier, it is the first bypass path 10112 of gating the first switch optional amplifier 1011, and the second bypass path 10122 of gating second switch optional amplifier 1012, make the straight-through bank of filters 102 that enters into of aerial signal.
Bank of filters 102 comprises at least two kinds of filters that communication standard is corresponding, and is positioned at the more-control switch at two ends.Wherein, the filter in bank of filters 102 can adopt band pass filter to carry out filtering processing.
Bank of filters 102 is according to more-control switch described in described selected communication standard control, be communicated with the path of the filter that described selected communication standard is corresponding, adopt filter that described selected communication standard is corresponding to carry out filtering processing to described amplifying signal and obtain first signal, and described the first filtering signal is transferred to described frequency mixer 103.
In the embodiment of the present invention, communication instruction at least comprises: the GSM standard of 2G, CDMA2000 standard, W-CDMA standard and the TD-SCDMA standard of 3G, and the TD-LTE standard of 4G and FDD-LTE standard.
The board of bank of filters 102 can disposable design be supported the filtering processing of various standards, as configured a filter for above-mentioned each communication standard, comprising the filter of GSM standard, CDMA2000 standard, W-CDMA standard and TD-SCDMA standard, can select by more-control switch the gating of communication standard respective filter as shown in Figure 2.
The board of bank of filters 102 also can be reserved outside option function, so that other communication standards are expanded, as expanded the filter of TD-LTE standard in dotted line block diagram in Fig. 2, thereby can realize the expansion of communication standard (as TD-LTE, FDD-LTE etc.), flexibility and extensibility are better.
Frequency mixer 103 carries out down-converted to described the first filtering signal and obtains frequency variation signal, and described frequency variation signal is transferred to described intermediate frequency processor 104.
Wherein, frequency mixer 103 (as Mixer_In in Fig. 2) is in frequency mixer is processed, frequency mixer 104 can ensure the frequency-conversion processing of wide radio-frequency region, its local oscillator (Lo) is in covering wide frequency range situation, the local oscillator performance of making an uproar mutually wants emphasis to ensure the performance requirement of GSM instruction, with the receiver performance that ensures that multi-modulation scheme is good.
Intermediate frequency processor 104 comprises the first treatment channel 1041 and the second treatment channel 1042, wherein the first treatment channel 1041 is carried out intermediate frequency process to frequency variation signal corresponding to GSM standard, and the second treatment channel 1042 is carried out intermediate frequency process to the frequency variation signal of other communication standards except GSM standard.
The first treatment channel 1041 comprises: the first band pass filter 10411, the 3rd switch optional amplifier 10413, the first adjustable damping 10414, the first amplifier 10415 and the second band pass filter 10416 that connect successively.
When receiving after the signal of GSM standard, the double control switch at intermediate frequency processor two ends can be communicated with the first treatment channel 1041, and wherein, the first band pass filter 10411 carries out filtering processing to frequency variation signal corresponding to GSM standard and obtains filtering frequency variation signal after treatment; Select the path of the 3rd switch optional amplifier 10413 according to the 3rd double control switch described in the bandwidth information control of described filtering frequency variation signal after treatment, to process by the first adjustable damping 10414, the first amplifier 10415 and the second band pass filter 10416 successively by described the 3rd switch optional amplifier 10413 signal after treatment, obtain intermediate-freuqncy signal.
Concrete, the first treatment channel 1041 also comprises: the 2nd FPGA10412.Described the 2nd FPGA10412 one end connects described the first band pass filter 10411, and the other end connects described the 3rd switch optional amplifier 10413.Described the 3rd switch optional amplifier 10413 comprises the 3rd double control switch, comprises the 3rd bypass path that the 3rd of amplifier amplifies path and do not comprise amplifier.
The bandwidth information of the 2nd FPGA10412 detection filter frequency variation signal after treatment, selects the 3rd to amplify path or the 3rd bypass path according to the 3rd double control switch of the 3rd switch optional amplifier 10413 described in described bandwidth information control.
The second treatment channel 1042 comprises: the 3rd band pass filter 10421, the second adjustable damping 10422, the second amplifier 10423 and the four-tape bandpass filter 10424 that connect successively.
By described except GSM standard the frequency variation signal of other communication standards process by the 3rd band pass filter, the second adjustable damping, the second amplifier and four-tape bandpass filter successively, obtain intermediate-freuqncy signal.
Intermediate frequency processor 104 receives the frequency variation signal of other communication standards except GSM standard, the double control switch that is positioned at intermediate frequency processor 104 two ends is communicated with the second treatment channel 1042, this frequency variation signal is processed by the 3rd band pass filter 10421, the second adjustable damping 10422, the second amplifier 10423 and four-tape bandpass filter 10424 successively, obtained intermediate-freuqncy signal.
As shown in Figure 2, in the intermediate frequency process after frequency conversion, can process respectively according to GSM standard and other standard.GSM standard is owing to there being higher dynamic requirements, and practical scene existing high dynamic requirements frequently.Therefore, in Fig. 2, be 200KHz channelizing the first treatment channel 1041 for GSM standard provides bandwidth, can carry out by double control switch the gating of passage.And for the signal of other standard, as CDMA2000 standard, W-CDMA standard etc., adopt the second treatment channel 1042 that bandwidth is 60MHz to carry out intermediate frequency reprocessing, comprise conventional filtering, amplification, adjustable damping etc.
And, in the first treatment channel 1041, consider that GSM disturbs and target frequency, there is potential high-amplitude scene in its power, therefore in this first treatment channel 1041, set power monitoring point, power detection value is fed back to the 2nd FPGA10412, therefore in the time that the echo signal power after device is after filtering excessive, (as reach-more than 30dBm) the 2nd FPGA10412 controls the 3rd double control switch of the 3rd switch optional amplifier 10413, adopt the 3rd double control switch to be communicated with the bypass path that does not comprise amplifier, guarantee link is normally worked.
Complete after intermediate frequency process, two intermediate frequency process passages are by the control gating of double control switch, under different systems, be all linked into analog to digital converter (ADC) 105 and carry out analog-to-digital conversion, analog signal is converted to digital signal, continue and process to realize the data of follow-up digital processing.
Monitor processor 106 and connect ADC105, monitor processor 106 and receive the digital signal that ADC105 is converted to, described digital signal is carried out to the processing of each standard protocol-decoding.
Based on above-mentioned discussion, discuss the data processing stream of monitoring device from overall angle based on Fig. 2, aerial signal (ANT) enters into receiver entrance, after radio frequency amplifier 101 that can switching gate through two-stage amplifies, enter into can switching gate bank of filters 102. adopting the filter corresponding with communication standard to complete after filtering, output signal enters into frequency mixer 103, frequency mixer 103 carries out down-converted, signal after frequency conversion, enters into intermediate frequency processor 104 according to different systems.
Wherein, the signal of GSM standard enters into Fig. 2 and marks the first treatment channel 1041 of 200KHz bandwidth, and other standard signal can unify to enter into Fig. 2 and mark the second treatment channel 1042 of 60MHz bandwidth.Signal is in corresponding intermediate frequency process passage, complete after corresponding amplification, filtering processing, enter into analog to digital converter 105 by switching gate, by signal digital and send in the monitoring processor of rear end, as the FPGA unit marking in Fig. 2, carry out the processing of each standard protocol-decoding, obtain monitored data.
To sum up, the monitoring device of the mobile communication that the embodiment of the present invention provides, it is succinctly effective that entirety receives framework, can be for the job requirement of multiple different communication standard scene, effectively reduce the high present situation of equipment repeatability of the monitoring device of different communication standard, and in not reducing properties of product, reach better economic benefit.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.
Those skilled in the art should understand, the embodiment of the embodiment of the present invention can be provided as method, device or computer program.Therefore, the embodiment of the present invention can adopt complete hardware implementation example, completely implement software example or the form in conjunction with the embodiment of software and hardware aspect.And the embodiment of the present invention can adopt the form at one or more upper computer programs of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The embodiment of the present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, terminal equipment (system) and computer program.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing terminal equipment to produce a machine, the instruction that makes to carry out by the processor of computer or other programmable data processing terminal equipment produces the device for realizing the function of specifying at flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing terminal equipment with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded on computer or other programmable data processing terminal equipment, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable terminal equipment, thereby the instruction of carrying out is provided for realizing the step of the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame on computer or other programmable terminal equipment.
Although described the preferred embodiment of the embodiment of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and amendment to these embodiment.So claims are intended to be interpreted as comprising preferred embodiment and fall into all changes and the amendment of embodiment of the present invention scope.
Finally, also it should be noted that, in this article, relational terms such as the first and second grades is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply and between these entities or operation, have the relation of any this reality or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, article or the terminal equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or terminal equipment.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, article or the terminal equipment that comprises described key element and also have other identical element.
Monitoring device to a kind of mobile communication provided by the present invention above, be described in detail, applied specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.
Claims (9)
1. a monitoring device for mobile communication, is characterized in that, comprising:
The radio frequency amplifier, bank of filters, frequency mixer, intermediate frequency processor and the analog to digital converter that connect successively;
Wherein, described radio frequency amplifier, receives the aerial signal that is entered the selected communication standard of port transmission by receiver, and described aerial signal is amplified and is amplified signal, and described amplifying signal is transferred to described bank of filters;
Described bank of filters, adopts filter corresponding to described selected communication standard to receive described amplifying signal, described amplifying signal is carried out to filtering processing and obtain the first filtering signal, and described the first filtering signal is transferred to described frequency mixer;
Described frequency mixer, carries out down-converted to described the first filtering signal and obtains frequency variation signal, and described frequency variation signal is transferred to described intermediate frequency processor;
Described intermediate frequency processor, selects treatment channel according to described selected communication standard, described frequency variation signal is carried out to intermediate frequency process and obtain intermediate-freuqncy signal, and described intermediate-freuqncy signal is transferred to described analog to digital converter; Wherein adopt the first treatment channel to receive frequency variation signal corresponding to global system for mobile communications GSM standard, and adopt the second treatment channel to receive the frequency variation signal of other communication standards except GSM standard; And in the time that described frequency variation signal is GSM standard, in intermediate frequency process, according to bandwidth information, described frequency variation signal is carried out at least one-level and amplify processing;
Described analog to digital converter, carries out analog-to-digital conversion to described intermediate-freuqncy signal and obtains digital signal.
2. device according to claim 1, is characterized in that, described radio frequency amplifier comprises:
Switch optional amplifier and primary scene programmable gate array FPGA, wherein said switch optional amplifier selects the amplification path that comprises amplifier or the bypass path that does not comprise amplifier by double control switch;
Described primary scene programmable gate array FPGA connects described switch optional amplifier, described primary scene programmable gate array FPGA is controlled the switch of described double control switch optional amplifier according to the power information of aerial signal, and amplification path or the bypass path of selector switch optional amplifier are processed and are amplified signal described aerial signal.
3. device according to claim 2, is characterized in that, described switch optional amplifier comprises: the first switch optional amplifier and second switch optional amplifier;
Wherein, described the first switch optional amplifier, primary scene programmable gate array FPGA are connected successively with second switch optional amplifier;
Described primary scene programmable gate array FPGA connects first of described first order switch optional amplifier according to power information control first double control switch of described aerial signal and amplifies path or the first bypass path, obtain described the first switch optional amplifier and process the power information of the first signal that obtains of aerial signal, connect described second switch optional amplifier second according to power information control second double control switch of described first signal and amplify path or the second bypass path;
Described second switch optional amplifier is processed described first signal and is amplified signal.
4. device according to claim 1, is characterized in that, described bank of filters comprises at least two kinds of filters that communication standard is corresponding, and more-control switch;
Described bank of filters, according to more-control switch described in described selected communication standard control, be communicated with the path of the filter that described selected communication standard is corresponding, adopt filter that described selected communication standard is corresponding to carry out filtering processing to described amplifying signal and obtain first signal, and described the first filtering signal is transferred to described frequency mixer.
5. device according to claim 1, is characterized in that, the first treatment channel of described intermediate frequency processor comprises:
The first band pass filter, the 3rd switch optional amplifier, the first adjustable damping, the first amplifier and the second band pass filter that connect successively;
In described intermediate frequency processor, described the first band pass filter carries out filtering processing to frequency variation signal corresponding to described global system for mobile communications GSM standard and obtains filtering frequency variation signal after treatment; According to the 3rd double control switch selection path described in the bandwidth information control of described filtering frequency variation signal after treatment, to process by described the first adjustable damping, the first amplifier and the second band pass filter successively by described the 3rd switch optional amplifier signal after treatment, obtain intermediate-freuqncy signal.
6. device according to claim 5, is characterized in that, the first treatment channel of described intermediate frequency processor also comprises: secondary scene programmable gate array FPGA;
Programmable gate array FPGA one end, the described secondary scene connects described the first band pass filter, and the other end connects described the 3rd switch optional amplifier;
Described the 3rd switch optional amplifier comprises the 3rd double control switch, comprises the 3rd bypass path that the 3rd of amplifier amplifies path and do not comprise amplifier;
Described secondary scene programmable gate array FPGA detects the bandwidth information of described filtering frequency variation signal after treatment, selects the 3rd to amplify path or the 3rd bypass path according to the 3rd double control switch of the 3rd switch optional amplifier described in described bandwidth information control.
7. device according to claim 1, is characterized in that, the second treatment channel of described intermediate frequency processor comprises:
The 3rd band pass filter, the second adjustable damping, the second amplifier and the four-tape bandpass filter that connect successively;
Intermediate frequency processor receives the frequency variation signal of other communication standards except GSM standard, by described except GSM standard the frequency variation signal of other communication standards process by the 3rd band pass filter, the second adjustable damping, the second amplifier and four-tape bandpass filter successively, obtain intermediate-freuqncy signal.
8. device according to claim 1, is characterized in that, also comprises: monitor processor;
Described monitoring processor connects described analog to digital converter, and described monitoring processor receives the digital signal that described analog to digital converter is converted to, and described digital signal is carried out to the processing of each standard protocol-decoding.
9. device according to claim 1, is characterized in that, described except GSM standard other communication standards comprise following at least one:
Code division multiple access CDMA2000, Wideband Code Division Multiple Access (WCDMA) W-CDMA, TD SDMA TD-SCDMA, time-division Long Term Evolution TD-LTE and time division duplex Long Term Evolution FDD-LTE.
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