CN107919139A - ICBM SHF satellite terminal tester, test system and test method - Google Patents
ICBM SHF satellite terminal tester, test system and test method Download PDFInfo
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/78—Detection of presence or absence of voice signals
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/16—Vocoder architecture
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
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Abstract
The present invention provides a kind of ICBM SHF satellite terminal tester, test system and test method, is related to the technical field that ICBM SHF satellite terminal is tested, which includes main control module, measurement control module, system simulator, physical layer and voice conversion module；Measurement control module and system simulator are connected with main control module respectively, and, measurement control module, system simulator and voice conversion module are connected with physical layer；Voice conversion module is provided with audio codec, and audio codec is connected with audio-frequency test instrument, receives the downlink voice bag that audio-frequency test instrument produces；And the ascending voice bag for the satellite standard that measured terminal is sent is received, tested with the voice signal to measured terminal.ICBM SHF satellite terminal tester, test system and test method provided by the invention, simplify the flow of test, not only increase the efficiency of test, also allow for the popularization of test method.
Description
Technical field
The present invention relates to the technical field of ICBM SHF satellite terminal test, is more particularly, to a kind of ICBM SHF satellite terminal tester, test
System and test method.
Background technology
, it is necessary to verify whether the audio performance of terminal communication module meets emblem mark before satellite communication terminal dispatches from the factory
Standard, and need various necessary index tests being compressed in cycle regular hour and complete, with improve terminal dispatch from the factory efficiency and
Production capacity.
Common test mode is to be combined ICBM SHF satellite terminal comprehensive tester with audio analyzer, forms a kind of audio
Calibration and loudness test method, can be rapidly completed the audio scheme verification of indicator terminal, and in Satellite Communication System Design
The relevant function of audio and performance carry out verification analysis.
But due to the limitation of actual satellite communication bandwidth, it is set to have the velocity of sound applied to difference under different scenes
The features such as rate and complicated encoding and decoding flow, and at present on the market without corresponding ICBM SHF satellite terminal comprehensive test instrument can with it is general
Audio analyzer connection composition supports the ICBM SHF satellite terminal tone testing system of multi tate, also, above-mentioned test is to tester's skill
Art requires height, and testing process is complicated, is unfavorable for promoting.
The content of the invention
In view of this, it is an object of the invention to provide a kind of ICBM SHF satellite terminal tester, test system and test method, with
It is complicated to alleviate testing process in the prior art, is unfavorable for the technical problem of popularization.
In a first aspect, an embodiment of the present invention provides a kind of ICBM SHF satellite terminal tester, including main control module, measurement control mould
Block, system simulator, physical layer and voice conversion module；Control module and system simulator is measured respectively with main control module to connect
Connect, and, measurement control module, system simulator and voice conversion module are connected with physical layer；Wherein, control module is measured to use
In the measurement control for the encoding and decoding speech that the algorithm routine progress satellite standard prestored is transferred under the triggering of main control module；
System simulator is used to provide establishes the call signalling flow to communicate with measured terminal；Physical layer is used for realization the ring of voice data
Return and interacted with voice conversion module；Voice conversion module is provided with audio codec, and audio codec is used for and sound
Frequency tester connects, and receives the downlink voice bag that audio-frequency test instrument produces, the voice by downlink voice packet encoder into satellite standard
Data, and the voice data transmissions of satellite standard are sent to measured terminal；And receive the satellite standard that measured terminal is sent
Ascending voice bag, decodes the ascending voice bag of satellite standard, and decoded ascending voice bag is converted to analog signal,
And audio-frequency test instrument is transferred to, so that audio-frequency test instrument tests the voice signal of measured terminal.
With reference to first aspect, an embodiment of the present invention provides the first possible embodiment of first aspect, wherein, on
State main control module and be provided with human-computer interaction interface, human-computer interaction interface is used to connect display screen, and it is ICBM SHF satellite terminal that display screen, which is used for,
Tester provides human-computer interaction interface.
With reference to first aspect, an embodiment of the present invention provides second of possible embodiment of first aspect, wherein, on
The audio codec that audio codec is satellite voice specification is stated, using based on linear prediction mixed excitation model, to low
Rate voice signal carries out encoding and decoding；Wherein, low-bit-rate speech coding signal include speed for 1.2Kbit/s, 2.4Kbit/s and
The voice signal of 4.0Kbit/s.
Second of possible embodiment with reference to first aspect, an embodiment of the present invention provides the third of first aspect
Possible embodiment, wherein, above-mentioned voice conversion module is additionally provided with audio codec alignment unit, audio codec
Alignment unit is used to carry out audio codec decoding calibration and encoded calibration, to determine the output of voice conversion module and defeated
The amplitude of the analog signal entered.
With reference to first aspect, an embodiment of the present invention provides the 4th kind of possible embodiment of first aspect, wherein, on
Stating voice conversion module includes audio input interface and audio output interface；Audio input interface and audio output interface lead to respectively
Audio cable is crossed to be connected with audio-frequency test instrument.
With reference to first aspect, an embodiment of the present invention provides the 5th kind of possible embodiment of first aspect, wherein, on
Physical layer is stated also to be connected with FPGA by universal serial bus；FPGA is used to receive instruction input by user, to carry out work(to physical layer
Can customization.
Second aspect, the embodiment of the present invention additionally provide a kind of ICBM SHF satellite terminal test system, which includes above-mentioned first
ICBM SHF satellite terminal tester described in aspect, further includes audio-frequency test instrument, measured terminal and phantom bead；Wherein, ICBM SHF satellite terminal is surveyed
Examination instrument is connected with measured terminal by RF cable；ICBM SHF satellite terminal tester is connected with audio-frequency test instrument by audio cable；Sound
Frequency tester is connected with phantom bead by client cables；Measured terminal is fixed on phantom bead.
With reference to second aspect, an embodiment of the present invention provides the first possible embodiment of second aspect, wherein, on
The system of stating further includes shielded box, and above-mentioned measured terminal and phantom bead are arranged in shielded box.
The third aspect, the embodiment of the present invention additionally provide a kind of ICBM SHF satellite terminal test method, and this method is applied to above-mentioned reality
The ICBM SHF satellite terminal test system described in example two is applied, to carry out tone testing to measured terminal, this method includes：ICBM SHF satellite terminal is tested
Instrument performs call business with measured terminal, enters talking state；ICBM SHF satellite terminal tester is received under the generation of audio-frequency test instrument
Row voice packet；Voice data by downlink voice packet encoder into satellite standard, and by the voice data transmissions of satellite standard send to
Measured terminal, so that downlink voice bag is transmitted to audio-frequency test instrument by measured terminal carries out downlink voice test；And satellite is whole
Tester is held to receive the ascending voice bag for the satellite standard that measured terminal is sent；The ascending voice bag of satellite standard is solved
Code, analog signal is converted to by decoded ascending voice bag, and is transferred to audio-frequency test instrument, so that audio-frequency test instrument is to tested
The carry out ascending voice test of terminal.
With reference to the third aspect, an embodiment of the present invention provides the first possible embodiment of the third aspect, wherein,
Before carrying out tone testing to measured terminal, the above method further includes：The voice conversion module of ICBM SHF satellite terminal tester is carried out
Calibration；The process of calibration includes decoding calibration and encoded calibration successively, to determine the mould of output and the input of voice conversion module
Intend the amplitude of signal.
The embodiment of the present invention brings following beneficial effect：
A kind of ICBM SHF satellite terminal tester, test system and test method provided in an embodiment of the present invention, pass through ICBM SHF satellite terminal
Tester is connected with audio-frequency test instrument and measured terminal, receive downlink voice bag that audio-frequency test instrument produces to downlink voice bag into
Row coding, forms the voice data of satellite standard, is sent to measured terminal, and receives the satellite standard that measured terminal is sent
Ascending voice bag, is decoded, and decoded ascending voice bag is converted to analog signal transmission gives audio-frequency test instrument, with to quilt
The voice signal for surveying terminal is tested, and during test, directly passes through the voice conversion module of ICBM SHF satellite terminal tester
It is connected with audio-frequency test instrument, carries out the work of encoding and decoding, simplify the flow of test, not only increases the efficiency of test, also just
In the popularization of test method.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in describing below
Attached drawing is some embodiments of the present invention, for those skilled in the art, without creative efforts,
Other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is a kind of structure diagram of ICBM SHF satellite terminal tester provided in an embodiment of the present invention；
Fig. 2 is the structure diagram of another ICBM SHF satellite terminal tester provided in an embodiment of the present invention；
Fig. 3 is the structure diagram that a kind of ICBM SHF satellite terminal provided in an embodiment of the present invention tests system；
Fig. 4 is a kind of flow chart of ICBM SHF satellite terminal test method provided in an embodiment of the present invention；
Fig. 5 is a kind of structure diagram of main control module provided in an embodiment of the present invention.
Icon：101- main control modules；102- measures control module；103- system simulators；104- physical layers；105- voices
Modular converter；106- audio codecs；107- human-computer interaction interfaces；108- audio codec alignment units；105a- audios
Input interface；105b- audio output interfaces；300- ICBM SHF satellite terminal testers；301- audio-frequency test instrument；302- measured terminals；
303- phantom beads；500- processors；501- memories；502- buses；503- communication interfaces.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiment is part of the embodiment of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those skilled in the art institute without making creative work
The every other embodiment obtained, belongs to the scope of protection of the invention.
At present, few suitable ICBM SHF satellite terminal comprehensive test instruments can be connected composition branch with general audio analyzer on the market
The ICBM SHF satellite terminal tone testing system of multi tate is held, also, using the prior art when progress satellite communication terminal dispatches from the factory test,
High to tester's technical requirements, testing process is also relative complex, and based on this, an embodiment of the present invention provides a kind of ICBM SHF satellite terminal
Tester, test system and test method, to simplify testing process.
For ease of understanding the present embodiment, first to a kind of ICBM SHF satellite terminal tester disclosed in the embodiment of the present invention
Describe in detail.
Embodiment one：
An embodiment of the present invention provides a kind of ICBM SHF satellite terminal tester, a kind of ICBM SHF satellite terminal tester as shown in Figure 1
Structure diagram：Including main control module 101, measurement control module 102, system simulator 103, physical layer 104 and voice conversion
Module 105；Measurement control module 102 and system simulator 103 are connected with main control module 101 respectively, and, measure control module
102nd, system simulator 103 and voice conversion module 105 are connected with physical layer.
During specific implementation, measurement control module 102 is used to transfer the algorithm prestored under the triggering of main control module 101
Program carries out the measurement control of the encoding and decoding speech of satellite standard；System simulator 103 is used to provide to establish with measured terminal and leads to
The call signalling flow of letter；Physical layer 104 is used for realization the loopback of voice data and is interacted with voice conversion module 105；
Voice conversion module 105 is provided with audio codec 106, which is used for and audio-frequency test
Instrument (not shown in figure 1) connects, and receives the downlink voice bag that audio-frequency test instrument produces, by downlink voice packet encoder into satellite standard
Voice data, and the voice data transmissions of satellite standard are sent to measured terminal；And receive the satellite that measured terminal is sent
The ascending voice bag of standard, decodes the ascending voice bag of satellite standard, and decoded ascending voice bag is converted to mould
Intend signal, and be transferred to audio-frequency test instrument, so that audio-frequency test instrument tests the voice signal of measured terminal.
A kind of ICBM SHF satellite terminal tester provided in an embodiment of the present invention, by ICBM SHF satellite terminal tester and audio-frequency test instrument and
Measured terminal connects, and receives the downlink voice bag that audio-frequency test instrument produces and downlink voice bag is encoded, form satellite standard
Voice data, be sent to measured terminal, and receive the ascending voice bag for the satellite standard that measured terminal is sent, solved
Code, is converted to analog signal transmission by decoded ascending voice bag and gives audio-frequency test instrument, with the voice signal to measured terminal
Tested, during test, be directly connected by the voice conversion module of ICBM SHF satellite terminal tester with audio-frequency test instrument,
The work of encoding and decoding is carried out, the flow of test is simplified, not only increases the efficiency of test, also allow for the popularization of test method.
Measured terminal is tested using above-mentioned ICBM SHF satellite terminal tester for the ease of staff, above-mentioned main control module
101 are additionally provided with human-computer interaction interface, the structure diagram of another ICBM SHF satellite terminal tester as shown in Figure 2, except above-mentioned Fig. 1
Outside shown each structure, human-computer interaction interface 107 is further included, which is used to connect display screen (in Fig. 2
It is not shown), display screen is used to provide human-computer interaction interface for ICBM SHF satellite terminal tester.During specific implementation, the display screen and satellite
It after terminal tester connection, can be used, be provided to staff simple as the host computer of the ICBM SHF satellite terminal tester
Operation interface, easy to test measured terminal.
It is satellite communication terminal in view of the measured terminal tested using above-mentioned ICBM SHF satellite terminal tester, in order to meet
Above-mentioned ICBM SHF satellite terminal tester is adapted to requirement with satellite channel, and above-mentioned audio codec compiles solution for the audio of satellite voice specification
Code device, using based on linear prediction mixed excitation model, encoding and decoding are carried out to low-bit-rate speech coding signal；Wherein, low-bit-rate speech coding
Signal includes the voice signal that speed is 1.2Kbit/s, 2.4Kbit/s and 4.0Kbit/s.
Specifically, user can select voice rate by display screen, and ICBM SHF satellite terminal tester receives user's selection
After voice rate, by the calibration of above-mentioned audio codec perform decoding device and encoder calibration, and user can also adjust
Volume, when audio coding decoding is abnormal, can restart audio codec.
During specific implementation, the audio codec of above-mentioned satellite voice specification can use improved harmonic excitation linearly pre-
Survey (IHELP) speech coder, there is provided during narrowband telephone voice service, speech processes part uses linear prediction real number to sound channel
Description, uses driving source on multi band mixed excitation model, and voiced sound component uses harmonic excitation source, and schwa component is used and made an uproar at random
Sound, includes some such as speech end-point detections (VAD)；Comfort noise produces (CNG)；Silence description frames (SID) etc., can be adapted to
The use of audio codec and meet testing requirement.
In actual use, the IHELP speech coders based on above-mentioned linear prediction mixed excitation model are, it is necessary to extract line
Spectral frequency, pitch period, gain, clear voiced information and fourier modulus totally 5 class parameter, can realize 4.0/2.4/1.2Kbit/
Tri- kinds of low bit rate speech coding algorithms of s, input speech bandwidth 100-3600Hz, 8kHz sampling, 16 equal interval quantizings.Meanwhile
Above-mentioned audio codec is using the method analysis speech parameter of sub-frame processing, and a length of 20ms of analysis frame is (in the sample rate of 8kHz
160 sampled points of lower every frame), main flow includes pretreatment, linear analysis, and gain is extracted, fourier modulus analysis, and fundamental tone is all
Phase extracts, voicing decision etc..
In general, can choose has the function of above-mentioned audio coding decoding chip, such a audio coding decoding chip is integrated into
On the master control borad of ICBM SHF satellite terminal tester, and it is driven by main control module according to the compatibility of such a chip, Peripheral Interface
And a series of design such as software and verification so that ICBM SHF satellite terminal tester can compatible all satellite standards audio-frequency test
Work, for example, carrying out the audio loudness test of satellite communication terminal, the call flow and volume that can test audio loudness solve
Code mode disclosure satisfy that flow guarantee and the test request of audio-frequency test, not only realized by the integration packaging of hardware and software
Simply, it is convenient, and it is capable of the test of compatible universal equipment.
Alternatively, above-mentioned voice conversion module 105 is additionally provided with audio codec alignment unit 108, which compiles solution
Code device alignment unit is used to carry out audio codec 106 decoding calibration and encoded calibration, to determine voice conversion module
The amplitude of the analog signal of output and input.
In general, it is necessary to be calibrated to the audio codec of voice conversion module before tested speech.The purpose of calibration is
Determine the amplitude of the analog signal of voice conversion module output and input, which can pass through above-mentioned audio codec
Alignment unit 108 realizes that calibration is generally divided into decoding calibration and encoded calibration, specifically, it is necessary to will be above-mentioned when being calibrated
ICBM SHF satellite terminal tester is connected with audio-frequency test instrument, first carries out decoding calibration, then perform encoded calibration.
Decoding calibration generally comprises procedure below：(1) during decoding calibration, voice conversion module sends one to audio-frequency test instrument
A constant and maximum amplitude sine wave signal.This sine wave signal is to be produced by audio codec by current decoding specification
Peak signal amount.(2) audio-frequency test instrument draws its amplitude by parsing this semaphore, and one is drawn compared with the value of calibration
A decoding offset.So audio-frequency test instrument is equal to audio from the analog signal that voice conversion module receives plus decoding offset
The decoding reality output loudness of codec；
Encoded calibration generally comprises procedure below：(1) before encoded calibration, perform decoding calibration is first wanted to obtain decoding compensation
Value.(2) a constant sinusoidal signal of loudness is sent by audio-frequency test instrument, after voice conversion module receives, first by analog signal
Voice data is formed by voice coding, then voice data is decoded.(3) decoded voice data is converted into simulation
Signal output is to audio-frequency test instrument.Equivalent to one voice loopback of execution.(4) audio-frequency test instrument can be rung according to the signal sent
Degree, received signal loudness and decoding offset calculate encoding compensatory value.So audio-frequency test instrument is sent to voice conversion module
Analog signal is in order to meet certain loudness, it is necessary to add encoding compensatory value.
It should be appreciated that the process of above-mentioned decoding calibration and encoded calibration is only a kind of preferred side of the embodiment of the present invention
Formula, in other embodiments, can also there is other calibrating modes, to be calibrated to above-mentioned audio codec, specifically with reality
Subject to service condition, the embodiment of the present invention is not limited this.
During specific implementation, above-mentioned voice conversion module 105 includes audio input interface 105a and audio output interface 105b；
Audio input interface 105a and audio output interface 105b is connected by audio cable with audio-frequency test instrument respectively.
Preferably, above-mentioned physical layer can be realized by physical chip, and then realize the loopback and and sound of voice data
The interaction of frequency codec, the physical layer can also pass through universal serial bus and FPGA (Field Programmable Gate
Array, field programmable gate array) connection, which can be PCIE (peripheral component
Interconnect express, high speed serialization computer expansion bus standard) bus, the bus is due to higher maximum
The physical size of system bus handling capacity, low I/O pin numbers and smaller, and more detailed error detection and report can be provided
Mechanism (advanced error report, AER) and the machine warm connection function, therefore, can be used in ICBM SHF satellite terminal tester, easy to quilt
Terminal is surveyed to be tested；Specifically, which is used to receive instruction input by user, to carry out customizing functions, example to physical layer
Such as, which can be loaded into the function program that user edits, and share work of physical layer, etc., and the specific function that customizes can be with
This is not limited into edlin, the embodiment of the present invention by staff.
During specific implementation, in the structure diagram of the ICBM SHF satellite terminal tester shown in Fig. 2, measurement control module passes through
Socket port is established with main control module and physical layer and communicated to connect, and in control module is measured, is previously stored with polyalgorithm
Program bag supplies main control module calls, to carry out testing process, for example, main control module receives tester by human-computer interaction interface
The parameter of input, configures testing process according to parameter, after the completion of configuration, calls the pre- place stored in measurement control module
Adjustment method, docks received voice is pre-processed, linear analysis and Fourier modulus are analyzed etc., these algorithm routines, all may be used
To be stored in measurement control module, it is called for main control module；
Alternatively, voice conversion module can also be established by socket port and physical layer and communicate, when physical layer and
After FPGA connections, voice conversion module can also by GPIO (General Purpose Input Output, universal input/
Output, abbreviation GPIO) interface and FPGA foundation communicates.Further, system simulator can also pass through socket port and master control
Module and physical layer foundation communication connection, for example, anolog base station can be used as, produce base station signal, and then provide with being tested eventually
The call signalling flow of communication is established at end.
Embodiment two：
On the basis of above-described embodiment, the embodiment of the present invention additionally provides a kind of ICBM SHF satellite terminal test system, such as Fig. 3 institutes
A kind of structure diagram for ICBM SHF satellite terminal test system shown, the system include the ICBM SHF satellite terminal tester described in above-described embodiment one
300, further include audio-frequency test instrument 301, measured terminal 302 and phantom bead 303；
During specific implementation, ICBM SHF satellite terminal tester is connected with measured terminal by RF cable；ICBM SHF satellite terminal tester with
Audio-frequency test instrument is connected by audio cable, wherein, audio cable is divided into IN and OUT two-way, and connector can be BNC (Bayonet
Nut Connector, snap-fit connector) connector；Audio-frequency test instrument is connected with phantom bead by client cables；It is tested
Terminal is fixed on phantom bead.
During specific implementation, above-mentioned phantom bead is provided with human emulation equipment, for example, acoustic coupler and microphone etc.,
The collection and transmission of sound, the work(of the physical simulation number of people can be realized in acoustic impedance of defined frequency band internal model personification ear etc.
It can may be referred to associated materials of the prior art to realize, the embodiment of the present invention is not limited this.
Alternatively, said system can also include shielded box, and above-mentioned measured terminal and phantom bead are arranged in shielded box,
To avoid the interference of extraneous voice signal so that the test result that test speech signal is carried out to measured terminal is more accurate.
System is tested corresponding to above-mentioned ICBM SHF satellite terminal, the embodiment of the present invention additionally provides a kind of ICBM SHF satellite terminal test method,
This method is applied to above-mentioned ICBM SHF satellite terminal test system, is realized on ICBM SHF satellite terminal tester, to carry out voice to measured terminal
Test, a kind of flow chart of ICBM SHF satellite terminal test method as shown in Figure 4, this method comprise the following steps：
Step S402, ICBM SHF satellite terminal tester perform call business with measured terminal, enter talking state；
Wherein, above-mentioned call business includes the operation such as dialing and on-hook.
Step S404, ICBM SHF satellite terminal tester receive the downlink voice bag that audio-frequency test instrument produces；
When usually testing, which produces for audio-frequency test instrument, and sends to ICBM SHF satellite terminal tester.Satellite
After terminal tester receives downlink voice bag, the process of coding is being performed by step S406.
Step S406, the voice data by downlink voice packet encoder into satellite standard, and by the voice data of satellite standard
Transmitting is sent to measured terminal, so that downlink voice bag is transmitted to audio-frequency test instrument by measured terminal carries out downlink voice test；
Specifically, ICBM SHF satellite terminal tester sends downlink voice bag to measured terminal, and measured terminal receives the downlink
Voice packet is decoded, and obtains voice signal, and voice signal is sent to phantom bead, phantom bead collection voice signal
Afterwards, voice signal is sent to audio-frequency test instrument so that audio-frequency test instrument receives the voice signal, and by the voice signal with it is right
The voice signal data included in downlink voice bag is compared, and the downlink voice of measured terminal is surveyed according to comparison result
Examination.
Further, above-mentioned ICBM SHF satellite terminal test method is further included carries out ascending voice test, ascending voice to measured terminal
The process of test can perform call business in ICBM SHF satellite terminal tester and measured terminal, after entering talking state, pass through step
Rapid S408~step S410 is realized.
Step S408, ICBM SHF satellite terminal tester receive the ascending voice bag for the satellite standard that measured terminal is sent；
During specific implementation, ascending voice is first produced by audio-frequency test instrument, generates ascending voice bag, and ascending voice bag is sent out
Send to phantom bead；Phantom bead receives ascending voice bag, which is parsed and sends ascending voice, is tested
Terminal gathers the ascending voice by microphone, and ascending voice is modulated into the ascending voice bag of satellite standard, and will be modulated
Ascending voice bag is sent to ICBM SHF satellite terminal tester, after ICBM SHF satellite terminal tester receives the ascending voice bag, performs step
The process of S410.
Step S410, decodes the ascending voice bag of satellite standard, and decoded ascending voice bag is converted to mould
Intend signal, and be transferred to audio-frequency test instrument, so that carry out ascending voice test of the audio-frequency test instrument to measured terminal.
After audio-frequency test instrument receives the analog signal of the ascending voice bag, by the analog signal and the ascending voice of generation
Data be compared, the ascending voice of measured terminal is tested according to comparison result.
Further, before tone testing is carried out to measured terminal by the above method, further include：ICBM SHF satellite terminal is tested
The voice conversion module of instrument is calibrated；The process of calibration includes decoding calibration and encoded calibration successively, to determine that voice is changed
The amplitude of the analog signal of output and the input of module.
A kind of ICBM SHF satellite terminal tester method provided in an embodiment of the present invention, passes through ICBM SHF satellite terminal tester and audio-frequency test
Instrument is connected with measured terminal, receives the downlink voice bag that audio-frequency test instrument produces and downlink voice bag is encoded, form satellite
The voice data of standard, is sent to measured terminal, and receives the ascending voice bag for the satellite standard that measured terminal is sent, and carries out
Decoding, is converted to analog signal transmission by decoded ascending voice bag and gives audio-frequency test instrument, to believe the voice of measured terminal
Number tested, during test, the voice conversion module and audio-frequency test instrument that directly pass through ICBM SHF satellite terminal tester connect
Connect, carry out the work of encoding and decoding, simplify the flow of test, not only increase the efficiency of test, also allow for pushing away for test method
Extensively.
ICBM SHF satellite terminal test system and ICBM SHF satellite terminal test method provided in an embodiment of the present invention, provide with above-described embodiment
ICBM SHF satellite terminal tester there is identical technical characteristic, so can also solve identical technical problem, reach identical technology
Effect.
A kind of structure diagram of main control module of the embodiment of the present invention also one, including processor 500, memory 501,
Bus 502 and communication interface 503, the processor 500, communication interface 503 and memory 501 are connected by bus 502；Processing
Device 500 is used to perform the executable module stored in memory 501, such as computer program.
Wherein, memory 501 may include high-speed random access memory (RAM, Random Access Memory),
Non-labile memory (non-volatile memory), for example, at least a magnetic disk storage may be further included.By extremely
A few communication interface 503 (can be wired or wireless) is realized logical between the system network element and at least one other network element
Letter connection, can use internet, wide area network, local network, Metropolitan Area Network (MAN) etc..
Bus 502 can be isa bus, pci bus or eisa bus etc..The bus can be divided into address bus, number
According to bus, controlling bus etc..For ease of representing, only represented in Fig. 5 with a four-headed arrow, it is not intended that an only bus
Or a type of bus.
Wherein, memory 501 is used for storage program, and the processor 500 performs the journey after execute instruction is received
Sequence, the method that foregoing any embodiment of the embodiment of the present invention discloses performed by ICBM SHF satellite terminal tester can be applied to processor
In 500, or realized by processor 500.
Processor 500 is probably a kind of IC chip, has the disposal ability of signal.It is above-mentioned during realization
Each step of method can be completed by the integrated logic circuit of the hardware in processor 500 or the instruction of software form.On
The processor 500 stated can be general processor, including central processing unit (Central Processing Unit, referred to as
CPU), network processing unit (Network Processor, abbreviation NP) etc.；It can also be digital signal processor (Digital
Signal Processing, abbreviation DSP), application-specific integrated circuit (Application Specific Integrated
Circuit, abbreviation ASIC), ready-made programmable gate array (Field-Programmable Gate Array, abbreviation FPGA) or
Person other programmable logic device, discrete gate or transistor logic, discrete hardware components.It can realize or perform sheet
Disclosed each method, step and logic diagram in inventive embodiments.General processor can be microprocessor or the processing
Device can also be any conventional processor etc..The step of method with reference to disclosed in the embodiment of the present invention, can be embodied directly in
Hardware decoding processor performs completion, or performs completion with the hardware in decoding processor and software module combination.Software mould
Block can be located at random access memory, flash memory, read-only storage, programmable read only memory or electrically erasable programmable storage
In the storage medium of this areas such as device, register maturation.The storage medium is located at memory 501, and processor 500 reads memory
Information in 501, with reference to the step of its hardware completion above method.
The computer program production of ICBM SHF satellite terminal tester, test system and test method that the embodiment of the present invention is provided
Product, including the computer-readable recording medium of program code is stored, the instruction that said program code includes can be used for before performing
Method described in the embodiment of the method for face, specific implementation can be found in embodiment of the method, and details are not described herein.
In addition, in the description of the embodiment of the present invention, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.To those skilled in the art, above-mentioned term can be understood in the present invention with concrete condition
Concrete meaning.
If the function is realized in the form of SFU software functional unit and is used as independent production marketing or in use, can be with
It is stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially in other words
The part to contribute to the prior art or the part of the technical solution can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be
People's computer, server, or network equipment etc.) perform all or part of step of each embodiment the method for the present invention.
And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
In the description of the present invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Easy to describe the present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
Finally it should be noted that：Above example, is only the embodiment of the present invention, to illustrate the skill of the present invention
Art scheme, rather than its limitations, protection scope of the present invention is not limited thereto, although with reference to the foregoing embodiments to the present invention into
Go detailed description, it should be understood by those skilled in the art that：Any one skilled in the art takes off in the present invention
In the technical scope of dew, it can still modify the technical solution described in previous embodiment or can readily occur in change
Change, or equivalent substitution is carried out to which part technical characteristic；And these modifications, change or replacement, do not make relevant art
Scheme essence depart from technical solution of the embodiment of the present invention spirit and scope, should all cover protection scope of the present invention it
It is interior.Therefore, protection scope of the present invention should be subject to scope of the claims.
Claims (10)
1. a kind of ICBM SHF satellite terminal tester, it is characterised in that including main control module, measurement control module, system simulator, physics
Layer and voice conversion module；
The measurement control module and the system simulator are connected with the main control module respectively, and, the measurement control mould
Block, the system simulator and the voice conversion module are connected with the physical layer；Wherein, the measurement control module is used
The measurement that the algorithm routine prestored carries out the encoding and decoding speech of satellite standard is transferred under the triggering in the main control module
Control；The system simulator is used to provide establishes the call signalling flow to communicate with measured terminal；The physical layer is used for real
The loopback of existing voice data and interacted with the voice conversion module；
The voice conversion module is provided with audio codec, and the audio codec is used to be connected with audio-frequency test instrument,
Receive the downlink voice bag that the audio-frequency test instrument produces, the voice data by the downlink voice packet encoder into satellite standard,
And the voice data transmissions of the satellite standard are sent to measured terminal；And receive the satellite standard that the measured terminal is sent
Ascending voice bag, the ascending voice bag of the satellite standard is decoded, decoded ascending voice bag is converted into mould
Intend signal, and be transferred to the audio-frequency test instrument, so that the audio-frequency test instrument carries out the voice signal of the measured terminal
Test.
2. ICBM SHF satellite terminal tester according to claim 1, it is characterised in that the main control module is provided with human-computer interaction
Interface, the human-computer interaction interface are used to connect display screen, and the display screen is used to provide people for the ICBM SHF satellite terminal tester
Machine interactive interface.
3. ICBM SHF satellite terminal tester according to claim 1, it is characterised in that the audio codec is satellite voice
The audio codec of specification, using based on linear prediction mixed excitation model, encoding and decoding are carried out to low-bit-rate speech coding signal；Its
In, the low-bit-rate speech coding signal includes the voice signal that speed is 1.2Kbit/s, 2.4Kbit/s and 4.0Kbit/s.
4. ICBM SHF satellite terminal tester according to claim 3, it is characterised in that the voice conversion module is additionally provided with sound
Frequency codec alignment unit, the audio codec alignment unit are used to carry out decoding calibration to the audio codec
And encoded calibration, to determine the amplitude of the analog signal of output and the input of the voice conversion module.
5. ICBM SHF satellite terminal tester according to claim 1, it is characterised in that it is defeated that the voice conversion module includes audio
Incoming interface and audio output interface；The audio input interface and the audio output interface respectively by audio cable with it is described
Audio-frequency test instrument connects.
6. ICBM SHF satellite terminal tester according to claim 1, it is characterised in that the physical layer also by universal serial bus with
FPGA connections；The FPGA is used to receive instruction input by user, to carry out customizing functions to the physical layer.
7. a kind of ICBM SHF satellite terminal tests system, it is characterised in that the system comprises claim 1~6 any one of them to defend
Star terminal tester, further includes audio-frequency test instrument, measured terminal and phantom bead；
Wherein, the ICBM SHF satellite terminal tester is connected with the measured terminal by RF cable；The ICBM SHF satellite terminal tester
It is connected with the audio-frequency test instrument by audio cable；The audio-frequency test instrument is connected with the phantom bead by client cables
Connect；The measured terminal is fixed on the phantom bead.
8. system according to claim 7, it is characterised in that the system also includes shielded box, the measured terminal and
The phantom bead is arranged in the shielded box.
9. a kind of ICBM SHF satellite terminal test method, it is characterised in that the satellite that the method is applied to described in claim 7 or 8 is whole
Test system is held, to carry out tone testing to measured terminal, the described method includes：
ICBM SHF satellite terminal tester performs call business with measured terminal, enters talking state；
The ICBM SHF satellite terminal tester receives the downlink voice bag that audio-frequency test instrument produces；
Voice data by the downlink voice packet encoder into satellite standard, and the voice data transmissions of the satellite standard are given
To measured terminal, so that the downlink voice bag is transmitted to the audio-frequency test instrument by the measured terminal carries out downlink voice survey
Examination；And
The ICBM SHF satellite terminal tester receives the ascending voice bag for the satellite standard that the measured terminal is sent；
The ascending voice bag of the satellite standard is decoded, decoded ascending voice bag is converted into analog signal, and
The audio-frequency test instrument is transferred to, so that carry out ascending voice test of the audio-frequency test instrument to the measured terminal.
10. according to the method described in claim 9, it is characterized in that, to the measured terminal carry out tone testing before, institute
The method of stating further includes：
The voice conversion module of the ICBM SHF satellite terminal tester is calibrated；The process of the calibration includes decoding calibration successively
And encoded calibration, to determine the amplitude of the analog signal of output and the input of the voice conversion module.
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Application publication date: 20180417 |