CN101980479B - Method and system for testing performance of very high frequency data chain mode-two air ground communication system - Google Patents
Method and system for testing performance of very high frequency data chain mode-two air ground communication system Download PDFInfo
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Abstract
The invention relates to a method and a system for testing performance of a very high frequency data chain mode-two air ground communication system. The method for testing the performance of the very high frequency data chain mode-two air ground communication system comprises the following steps of: acquiring at least one data packet transmitted by a detected very high frequency data chain mode-two air ground communication system; performing analytic preprocessing on the at least one data packet to acquire preprocessed data information according to a very high frequency data chain mode-two protocol format; and performing statistical processing on the preprocessed data information to acquire performance data of the very high frequency data chain mode-two air ground communication system. The system for testing the performance of the very high frequency data chain mode-two air ground communication system comprises a data preprocessing module and a statistical processing module. By the method and the system, the performance can be tested before the very high frequency data chain mode-two air ground communication system is put into application or during the operation of the system.
Description
Technical field
The present invention relates to air communications measuring technology, particularly relate to a kind of performance test methods and system of very high frequency datalink air-ground communications systems.
Background technology
Very high frequency datalink communication protocol is one of four kinds of very-high-frequency PECVD patterns supporting of aeronautical telecommunication network, is the very-high-frequency PECVD be most widely used at present.Very high frequency datalink air-ground communications systems is the communication system that current aerospace system generally uses, it is a kind of mobile subnetwork of aeronautical telecommunication network, it carry the network layer data bag in air-ground mobile communication, be mainly used in realizing transfer of data between vacant lot, ensure the real-time contacts on airborne vehicle and ground, guarantee flight safety.
In order to ensure that very high frequency datalink air-ground communications systems can realize transmitting data in real time, accurately and efficiently between vacant lot, first the performance of very high frequency datalink air-ground communications systems must be ensured, therefore, before system drops into application and during system cloud gray model, how performance test is carried out to very high frequency datalink air-ground communications systems and become problem demanding prompt solution.
Summary of the invention
The invention provides a kind of performance test methods and system of very high frequency datalink air-ground communications systems, in order to very high frequency datalink air-ground communications systems input application before or carry out performance test during system cloud gray model.
The invention provides a kind of performance test methods of very high frequency datalink air-ground communications systems, comprising:
Obtain tested at least one packet of very high frequency datalink air-ground communications systems transmission and the data receipt time of at least one packet described, with when at least one packet described is for test frame, according to the data transmitting time of this test frame and the transfer of data time delay of data receipt time calculating very high frequency datalink air-ground communications systems;
By at least one packet and data receipt time pushed data bag receiving queue described in receiving, then retrieve a packet from described receives data packets queue;
According to very high frequency datalink protocol format, parsing preliminary treatment is carried out to the described packet retrieved, obtain preprocessed data information; And
Statistical disposition is carried out to described preprocessed data information, obtains the performance data of described very high frequency datalink air-ground communications systems.
The present invention also provides a kind of Performance Test System of very high frequency datalink air-ground communications systems, comprising:
Data preprocessing module, for obtaining tested at least one packet of very high frequency datalink air-ground communications systems transmission and the data receipt time of at least one packet described, with when at least one packet described is for test frame, according to the data transmitting time of this test frame and the transfer of data time delay of data receipt time calculating very high frequency datalink air-ground communications systems; By at least one packet and data receipt time pushed data bag receiving queue described in receiving, then retrieve a packet from described receives data packets queue; According to very high frequency datalink protocol format, parsing preliminary treatment is carried out to the described packet retrieved, obtain preprocessed data information; And
Statistical disposition module, for carrying out statistical disposition to described preprocessed data information, obtains the performance data of described very high frequency datalink air-ground communications systems.
After the performance test methods of very high frequency datalink air-ground communications systems of the present invention and system pass through the packet of acquisition very high frequency datalink air-ground communications systems transmission, according to very high frequency datalink agreement, parsing preliminary treatment is carried out to this packet, ensure that test macro meets very high frequency datalink consensus standard in communication system completely to the parsing of data, resolve the data obtained consistent with the practical application of very high frequency datalink air-ground communications systems, by the further statistical disposition to this preprocessed data information, thus obtain the performance data of tested very high frequency datalink air-ground communications systems, this performance data can reflect the data transmission performance of the very high frequency datalink air-ground communications systems in practical application truly.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the flow chart of the performance test methods embodiment one of very high frequency datalink air-ground communications systems of the present invention;
Fig. 2 is the flow chart of the performance test methods embodiment two of very high frequency datalink air-ground communications systems of the present invention;
Fig. 3 is the flow chart of the performance test methods embodiment three of very high frequency datalink air-ground communications systems of the present invention;
Fig. 4 is the flow chart of the performance test methods embodiment five of very high frequency datalink air-ground communications systems of the present invention;
Fig. 5 is the structural representation of the Performance Test System embodiment one of very high frequency datalink air-ground communications systems of the present invention;
Fig. 6 is the structural representation of the Performance Test System embodiment two of very high frequency datalink air-ground communications systems of the present invention;
Fig. 7 is the structural representation of the Performance Test System embodiment three of very high frequency datalink air-ground communications systems of the present invention;
Fig. 8 is the structural representation of the Performance Test System embodiment four of very high frequency datalink air-ground communications systems of the present invention;
Fig. 9 is the structural representation of the Performance Test System embodiment five of very high frequency datalink air-ground communications systems of the present invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 is the flow chart of the performance test methods embodiment one of very high frequency datalink air-ground communications systems of the present invention, and as shown in Figure 1, the method for the present embodiment comprises:
Step 101, obtain at least one packet that tested very high frequency datalink air-ground communications systems sends.
At least one packet that tested very high frequency datalink air-ground communications systems sends is obtained in this step, can by setting the address of tested very high frequency datalink air-ground communications systems, if the packet received is from system under test (SUT), namely tested very high frequency datalink air-ground communications systems, then carry out further process below, if packet from non-system under test (SUT), does not then deal with.
Step 102, according to very high frequency datalink protocol format, parsing preliminary treatment is carried out at least one packet described, obtain preprocessed data information.
By carrying out parsing preliminary treatment according to very high frequency datalink agreement to the packet received, ensure that test macro meets very high frequency datalink consensus standard in communication system completely to the parsing of data.
Step 103, statistical disposition is carried out to described preprocessed data information, obtain the performance data of described very high frequency datalink air-ground communications systems.
After the packet of the present embodiment by the transmission of acquisition very high frequency datalink air-ground communications systems, according to very high frequency datalink agreement, parsing preliminary treatment is carried out to this packet, ensure that test macro meets very high frequency datalink consensus standard in communication system completely to the parsing of data, resolve the data obtained consistent with the practical application of very high frequency datalink air-ground communications systems, by the further statistical disposition to this preprocessed data information, thus obtain the performance data of tested very high frequency datalink air-ground communications systems, this performance data can reflect the data transmission performance of the very high frequency datalink air-ground communications systems in practical application truly.
On the basis of above-described embodiment one, further, for the packet received in above-described embodiment one, can obtain by resolving the data prediction information comprising customizing messages.
Fig. 2 is the flow chart of the performance test methods embodiment two of very high frequency datalink air-ground communications systems of the present invention, and as shown in Figure 2, the method for the present embodiment comprises:
Step 201, obtain at least one packet that tested very high frequency datalink air-ground communications systems sends.
Step 202, according to very high frequency datalink protocol format, dissection process is carried out at least one packet described, if the packet of resolving is test frame, then the test data comprised in the information field according to described test frame and data transmitting time obtain the preprocessed data information comprising data length, data content and data transmitting time; Otherwise, obtain the preprocessed data information comprising data length and data content.
Packet by resolving in this step is test frame or non-test frame, can obtain different preprocessed data information.If test frame, owing to data transmitting time to be filled in the information field of test frame when sending, so the preprocessed data information comprising data length, data content and data transmitting time can be obtained after resolving, but not test frame is not owing to carrying data transmission time information, so the preprocessed data information comprising data length and data content only can be obtained after resolving.
Specifically, by obtaining the predetermined test data and data transmitting time that are encapsulated in test frame in this step, thus measuring and calculation can be carried out to the data transmission delay of this test frame after receiving test frame.Wherein, the test frame obtained can derive from the particular data packet that very high frequency datalink air-ground communications systems transmitting terminal sends, be specifically as follows: at the transmitting terminal of very high frequency datalink air-ground communications systems, one test frame sending module is set, by this test frame sending module, predetermined test data is filled to the information field of test frame to be sent, very high frequency datalink air-ground communications systems delivery time padding data transmitting time is transferred in data, then very high frequency datalink air-ground communications systems encapsulates this particular data packet and sends, thus when receiving the particular data packet comprising test frame, data message in test frame and data transmission time information can be obtained by resolving preliminary treatment.
Step 203, statistical disposition is carried out to described preprocessed data information, obtain the performance data of described very high frequency datalink air-ground communications systems.
On the basis of the technique effect that the present embodiment reaches at above-described embodiment one, further by parse very high frequency datalink air-ground communications systems transmission packet in test frame or non-test frame, obtain preprocessed data information different in test frame or non-test frame, thus the particular characteristic index of testing very high frequency datalink air-ground communications systems can be calculated according to carrying in test frame or non-test frame customizing messages.
On the basis of above-described embodiment two, the data receipt time of packet can be obtained while receiving acquisition packet, according to resolving the preprocessed data information obtained, can add up and obtain at least one performance data in message transmission rate, transfer of data accuracy and transfer of data time delay.
Fig. 3 is the flow chart of the performance test methods embodiment three of very high frequency datalink air-ground communications systems of the present invention, and as shown in Figure 3, the method for the present embodiment comprises:
Step 301, obtain the data receipt time of at least one packet that tested very high frequency datalink air-ground communications systems sends and packet.
Step 302, according to very high frequency datalink protocol format, dissection process is carried out to this at least one packet, if the packet of resolving is test frame, then obtain according to the test data comprised in the information field of test frame and data transmitting time the preprocessed data information comprising data length, data content and data transmitting time; Otherwise, obtain the preprocessed data information comprising data length and data content.
Step 303, statistical disposition is carried out to preprocessed data information, obtains at least one performance data in the message transmission rate of very high frequency datalink air-ground communications systems, transfer of data accuracy and transfer of data time delay, be specially:
According to data length, statistics transmission total amount, calculates the message transmission rate that very high frequency datalink air-ground communications systems is per second, statistical average message transmission rate;
According to data length, statistics transmission total amount, if preprocessed data information is from test frame, then compares data content and test data, the correct transmission quantity of statistics, calculates the transfer of data accuracy of very high frequency datalink air-ground communications systems; Otherwise whether preprocessed data information, from non-test frame, adopts cyclic redundancy check method checking data content delivery correct, according to the transfer of data accuracy of check results cumulative calculation very high frequency datalink air-ground communications systems;
If preprocessed data information is from test frame, then according to data transmitting time and data receipt time, calculate the transfer of data time delay of very high frequency datalink air-ground communications systems, the average transmission time delay of statistics.If preprocessed data information is from non-test frame, owing to there is no data transmitting time, so do not calculate and statistics transmission delay.
The present embodiment, on the technique effect basis that above-described embodiment two reaches, is further advanced by and obtains data receipt time while acquisition packet, thus can the transfer of data delay performance of counting statistics very high frequency datalink air-ground communications systems.At least one performance data in the message transmission rate of very high frequency datalink air-ground communications systems, transfer of data accuracy and transfer of data time delay three data transmission performances can be obtained by statistics.
Further, the performance test methods embodiment four of very high frequency datalink air-ground communications systems of the present invention carries out correction process to the clock needed for the acquisition performance data in above-mentioned any embodiment according to the clock of global positioning system.
On the basis of the technique effect that the present embodiment reaches in above-mentioned any embodiment, correct further by the clock obtained needed for performance data, ensure that in test process, receiving terminal is synchronous with the clock of transmitting terminal, also just ensure that data receipt time and data transmitting time derive from same reference clock, thus ensure the accuracy of the performance data obtained.
On the basis of above-described embodiment one, further, in order to the systematic function of testing under different operational factor condition and to obtain communication system performance in what kind of parameter area by test better, real-time configuration adjustment can be carried out to the operational factor of very high frequency datalink air-ground communications systems.
Fig. 4 is the flow chart of the performance test methods embodiment five of very high frequency datalink air-ground communications systems of the present invention, and as shown in Figure 4, the method for the present embodiment comprises:
Step 501, configure the system operational parameters of described very high frequency datalink air-ground communications systems on a user interface.
By configuring different system operational parameters in this step, as configured different data transmission frequency etc., the systematic function under different frequency condition can be tested, thus communication system preferably running frequency scope can be obtained, this layoutprocedure can adopt manual configuration, such as tester can by observing the display test result under the frequency parameter of tester's configuration on a user interface, if the test result under this frequency parameter shows that the performance of very high frequency datalink air-ground communications systems is undesirable, as low in message transmission rate or the problem such as transfer of data accuracy is low or data transmission delay is larger, then can adjust this frequency parameter further, until obtain individual event or multinomial preferably runnability, frequency range when system performance is better can be known thus.
At least one packet that step 502, acquisition very high frequency datalink air-ground communications systems send according to this system operational parameters.
Step 503, according to very high frequency datalink protocol format, parsing preliminary treatment is carried out to this at least one packet, obtain preprocessed data information.
Step 504, statistical disposition is carried out to this preprocessed data information, obtain the performance data of very high frequency datalink air-ground communications systems.
Step 505, by system operational parameters and performance data display on a user interface and/or store this system operational parameters and this performance data.
The performance data of real-time display system operational factor and test is passed through in this step, the performance that very high frequency datalink air-ground communications systems in test is current under this operational factor can be known, again based on step 501, repeatedly configuration-system operational factor can be carried out, thus according to test result situation, select preferably parameter area.In concrete enforcement, the performance data that test obtains can, with various ways displays such as data, chart or curves, can be easy to directly observe know results of property to select according to tester.In addition, test process data and test result data also can be preserved in testing in real time, as test record write test report, to treat subsequent treatment and analysis.
On the basis of the technique effect that the present embodiment reaches at above-described embodiment one, further by the very high frequency datalink air-ground communications systems operational factor that configuration is different, the performance under different parameters condition can be tested, thus the Reasonable Parameters scope of this communication system in the better situation of performance can be obtained; By showing in real time and storing the operational factor of very high frequency datalink air-ground communications systems and corresponding performance data, Real Time Observation operational factor and logging test results can be regulated.
In the performance test methods any embodiment of above-mentioned very high frequency datalink air-ground communications systems, when receiving acquisition packet, the direct pushed data bag receiving queue of packet and time of reception elder generation that can will receive, then be responsible for retrieve data bag from queue by another thread, again parsing preliminary treatment is carried out to the packet retrieved, obtains data length, data content and data transmitting time.By the mode of the follow-up reprocessing of the first pushed data bag receiving queue of the packet that will receive, ensure that the reception processing time of each packet is enough little, littlely can to ignore completely to compared with transfer of data time delay, therefore this process can avoid multiprocessing to cause processing time delay effectively, thus can ensure the accuracy of the test result of transfer of data time delay.
Fig. 5 is the structural representation of the Performance Test System embodiment one of very high frequency datalink air-ground communications systems of the present invention, as shown in Figure 5, the system of the present embodiment comprises: data preprocessing module 11 and statistical disposition module 12, wherein, data preprocessing module 11 is for obtaining at least one packet of tested very high frequency datalink air-ground communications systems transmission; According to very high frequency datalink protocol format, parsing preliminary treatment is carried out to this at least one packet, obtain preprocessed data information; And
Statistical disposition module 12, for carrying out statistical disposition to preprocessed data information, obtains the performance data of very high frequency datalink air-ground communications systems.
The Performance Test System of the present embodiment very high frequency datalink air-ground communications systems for performing the technical scheme of embodiment of the method one shown in above-mentioned Fig. 1, its realize principle and the technique effect that can reach similar, repeat no more herein.
Fig. 6 is the structural representation of the Performance Test System embodiment two of very high frequency datalink air-ground communications systems of the present invention, as shown in Figure 6, in the present embodiment, data preprocessing module 11 comprises: obtain packet unit 112, dissection process unit 114 and obtain processing unit 116.Wherein, obtain packet unit 112, for obtaining at least one packet that tested very high frequency datalink air-ground communications systems sends;
Dissection process unit 114, for carrying out dissection process according to very high frequency datalink protocol format to this at least one packet;
Obtain processing unit 116, if be test frame for the packet of resolving, then obtain according to the test data comprised in the information field of test frame and data transmitting time the preprocessed data information comprising data length, data content and data transmitting time; Otherwise, obtain the preprocessed data information comprising data length and data content.
In the present embodiment, the transmitting terminal of very high frequency datalink air-ground communications systems is provided with test frame sending module (not shown), by this test frame sending module, predetermined test data is filled to the information field of test frame to be sent, very high frequency datalink air-ground communications systems delivery time padding data transmitting time is transferred in data, then very high frequency datalink air-ground communications systems encapsulated data packet sending, thus when data preprocessing module 11 receives the packet comprising test frame, data message in test frame and data transmission time information can be obtained by resolving preliminary treatment.
The Performance Test System of the present embodiment very high frequency datalink air-ground communications systems for performing the technical scheme of embodiment of the method two shown in above-mentioned Fig. 2, its realize principle and the technique effect that can reach similar, repeat no more herein.
Fig. 7 is the structural representation of the Performance Test System embodiment three of very high frequency datalink air-ground communications systems of the present invention, as shown in Figure 7, the present embodiment is on the basis of above-described embodiment two, further, acquisition packet unit 112 in data preprocessing module 11 is also for obtaining the data receipt time of packet when obtaining packet, statistical disposition module 12 comprises transmission rate computing unit, at least one unit in accuracy computing unit and time-delay calculation unit, wherein, transmission rate computing unit 122, for according to data length, statistics transmission total amount, calculate the message transmission rate that very high frequency datalink air-ground communications systems is per second, statistical average message transmission rate,
Accuracy computing unit 124, for according to data length, statistics transmission total amount, if preprocessed data information is from test frame, then data content and test data are compared, the correct transmission quantity of statistics, calculates the transfer of data accuracy of very high frequency datalink air-ground communications systems; Otherwise whether checking data content delivery is correct, the transfer of data accuracy of very high frequency datalink air-ground communications systems according to check results cumulative calculation;
Time-delay calculation unit 126, if for preprocessed data information from test frame, then according to data transmitting time and data receipt time, calculates the transfer of data time delay of very high frequency datalink air-ground communications systems, the average transmission time delay of statistics.
The Performance Test System of the present embodiment very high frequency datalink air-ground communications systems for performing the technical scheme of embodiment of the method three shown in above-mentioned Fig. 3, its realize principle and the technique effect that can reach similar, repeat no more herein.
Fig. 8 is the structural representation of the Performance Test System embodiment four of very high frequency datalink air-ground communications systems of the present invention, as shown in Figure 8, the present embodiment is on the basis of above-described embodiment one, further, comprise clock synchronization module 13, for according to Global Positioning System Clock to the clock obtained needed for performance data, namely the clock of data preprocessing module 11 carries out correction process, ensure the clock stringent synchronization of test macro clock and tested very high frequency datalink air-ground communications systems, thus ensure that data preprocessing module 11 recorded data time of reception and data transmitting time derive from same reference clock, ensure the accuracy of transfer of data delay test.
In the present embodiment four, clock synchronization module 13 goes in said system embodiment two and three equally, and it is similar that it realizes principle and the technique effect that can reach and the present embodiment four, do not repeat them here.
Fig. 9 is the structural representation of the Performance Test System embodiment five of very high frequency datalink air-ground communications systems of the present invention, as shown in Figure 9, the present embodiment is on the basis of above-described embodiment one, further, also comprise parameter configuration module 14 and result output module 15, wherein parameter configuration module 14 is for configuring the system operational parameters of very high frequency datalink air-ground communications systems on a user interface;
Result output module 15, for by system operational parameters and performance data display on a user interface and/or storage system operational factor and performance data;
Data preprocessing module 11 in the present embodiment, specifically for obtaining at least one packet that very high frequency datalink air-ground communications systems sends according to system operational parameters.
The Performance Test System of the present embodiment very high frequency datalink air-ground communications systems for performing the technical scheme of embodiment of the method five shown in above-mentioned Fig. 4, its realize principle and the technique effect that can reach similar, repeat no more herein.
Parameter configuration module 14 in the present embodiment five and result output module 15 go in said system embodiment two to embodiment four in any embodiment equally, and it is similar that it realizes principle and the technique effect that can reach and the present embodiment four, do not repeat them here.
The performance test methods of very high frequency datalink air-ground communications systems of the present invention and system can realize testing a very high frequency datalink air-ground communications systems, the very high frequency datalink air-ground communications systems that also can communicate to two is tested, when to a communication system test, the message transmission rate of system can be recorded simultaneously, transfer of data accuracy and transfer of data time delay three performance index, if during to two communication system tests, listen mode can be adopted, the message transmission rate of system can be recorded when not affecting communication, transfer of data accuracy.
The performance test methods of very high frequency datalink air-ground communications systems of the present invention and system by the different communication equipment of configuration and the corresponding protocol analysis pattern of receiving terminal, can also can be used for the performance of testing other very-high-frequency PECVD air-ground communications systems.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
It is last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention but not to be limited, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to technical scheme of the present invention or equivalent replacement, and these are revised or be equal to the spirit and scope that replacement also can not make amended technical scheme disengaging technical solution of the present invention.
Claims (8)
1. a performance test methods for very high frequency datalink air-ground communications systems, is characterized in that, comprising:
Repeatedly configure the system operational parameters of tested very high frequency datalink air-ground communications systems on a user interface;
Obtain described very high frequency datalink air-ground communications systems according at least one packet of system operational parameters transmission of each configuration and the data receipt time of at least one packet described, with when at least one packet described is for test frame, according to the data transmitting time of this test frame and the transfer of data time delay of data receipt time calculating very high frequency datalink air-ground communications systems;
By at least one packet and data receipt time pushed data bag receiving queue described in receiving, then retrieve a packet from described receives data packets queue;
According to very high frequency datalink protocol format, parsing preliminary treatment is carried out to the described packet retrieved, obtain preprocessed data information; And
Statistical disposition is carried out to described preprocessed data information, obtains the performance data of described very high frequency datalink air-ground communications systems under the system operational parameters of each configuration;
By the performance data display of the correspondence of the system operational parameters that configures and acquisition at every turn on a user interface and/or store the performance data of each system operational parameters of configuration and the correspondence of acquisition.
2. method according to claim 1, is characterized in that, describedly carries out parsing preliminary treatment according to very high frequency datalink protocol format to the described packet retrieved, and obtains preprocessed data information, specifically comprises:
According to very high frequency datalink protocol format, dissection process is carried out to the described packet retrieved, if the packet of resolving is test frame, then the test data comprised in the information field according to described test frame and data transmitting time obtain the preprocessed data information comprising data length, data content and data transmitting time; Otherwise, obtain the preprocessed data information comprising data length and data content.
3. method according to claim 2, is characterized in that,
Described statistical disposition is carried out to described preprocessed data information, obtains the performance data of described very high frequency datalink air-ground communications systems under the system operational parameters of each configuration, comprising:
According to described data length, statistics transmission total amount, calculates the message transmission rate that described very high frequency datalink air-ground communications systems is per second under the system operational parameters of each configuration, statistical average message transmission rate;
According to described data length, statistics transmission total amount, if described preprocessed data information is from described test frame, then described data content and described test data are compared, the correct transmission quantity of statistics, calculates the transfer of data accuracy of described very high frequency datalink air-ground communications systems under the system operational parameters of each configuration; Otherwise, whether correctly verify described data content transmission, the transfer of data accuracy of very high frequency datalink air-ground communications systems under the system operational parameters of each configuration according to check results cumulative calculation;
If described preprocessed data information is from described test frame, then according to described data transmitting time and described data receipt time, calculate the transfer of data time delay of described very high frequency datalink air-ground communications systems under the system operational parameters of each configuration, the average transmission time delay of statistics.
4. method according to claim 1, is characterized in that, also comprises:
According to Global Positioning System Clock, correction process is carried out to the clock obtained needed for described performance data.
5. a Performance Test System for very high frequency datalink air-ground communications systems, is characterized in that, comprising:
Parameter configuration module, for repeatedly configuring the system operational parameters of tested very high frequency datalink air-ground communications systems on a user interface;
Data preprocessing module, for obtaining described very high frequency datalink air-ground communications systems according at least one packet of system operational parameters transmission of each configuration and the data receipt time of at least one packet described, with when at least one packet described is for test frame, according to the data transmitting time of this test frame and the transfer of data time delay of data receipt time calculating very high frequency datalink air-ground communications systems; By at least one packet and data receipt time pushed data bag receiving queue described in receiving, then retrieve a packet from described receives data packets queue; According to very high frequency datalink protocol format, parsing preliminary treatment is carried out to the described packet retrieved, obtain preprocessed data information; And
Statistical disposition module, for carrying out statistical disposition to described preprocessed data information, obtains the performance data of described very high frequency datalink air-ground communications systems under the system operational parameters of each configuration;
Result output module, for the correspondence of the system operational parameters that will at every turn configure and acquisition performance data display on a user interface and/or store the performance data of each system operational parameters of configuration and the correspondence of acquisition.
6. system according to claim 5, is characterized in that, described data preprocessing module comprises:
Dissection process unit, for carrying out dissection process according to very high frequency datalink protocol format to the described packet retrieved;
Obtain processing unit, if be test frame for the packet of resolving, then the test data comprised in the information field according to described test frame and data transmitting time obtain the preprocessed data information comprising data length, data content and data transmitting time; Otherwise, obtain the preprocessed data information comprising data length and data content.
7. system according to claim 6, is characterized in that, described statistical disposition module comprises at least one unit in transmission rate computing unit, accuracy computing unit and time-delay calculation unit,
Described transmission rate computing unit, for according to described data length, statistics transmission total amount, calculates the message transmission rate that described very high frequency datalink air-ground communications systems is per second under the system operational parameters of each configuration, statistical average message transmission rate;
Described accuracy computing unit, for according to described data length, statistics transmission total amount, if described preprocessed data information is from described test frame, then described data content and described test data are compared, the correct transmission quantity of statistics, calculates the transfer of data accuracy of described very high frequency datalink air-ground communications systems under the system operational parameters of each configuration; Otherwise, whether correctly verify described data content transmission, the transfer of data accuracy of very high frequency datalink air-ground communications systems under the system operational parameters of each configuration according to check results cumulative calculation;
Described time-delay calculation unit, if for described preprocessed data information from described test frame, then according to described data transmitting time and described data receipt time, calculate the transfer of data time delay of described very high frequency datalink air-ground communications systems under the system operational parameters of each configuration, the average transmission time delay of statistics.
8. system according to claim 5, is characterized in that, also comprises:
Clock synchronization module, for carrying out correction process according to Global Positioning System Clock to the clock obtained needed for described performance data.
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| 张瑶等.甚高频数据链模式二通信协议栈一致性测试系统设计及验证.《航空电子技术》.2008,第39卷(第1期),第2页右栏至第3页第2-3节,附图2-4. * |
| 王晓琳等.甚高频数据链模式2网络仿真分析.《系统仿真学报》.2006,第18卷(第3期),638-642. * |
| 贾旭光等.航空甚高频数据链模式二建模及仿真研究.《系统仿真学报》.2007,第19卷(第21期),5046-5050. * |
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