CN109462460A - A kind of multiple channel test method and device of the system of included AD9361 chip - Google Patents
A kind of multiple channel test method and device of the system of included AD9361 chip Download PDFInfo
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- CN109462460A CN109462460A CN201811405718.3A CN201811405718A CN109462460A CN 109462460 A CN109462460 A CN 109462460A CN 201811405718 A CN201811405718 A CN 201811405718A CN 109462460 A CN109462460 A CN 109462460A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/24—Testing correct operation
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Abstract
The invention discloses a kind of multiple channel test method and devices of the system of included AD9361 chip, configure AD9361 module into correction mode and emit orthogonal tone signal by signal source；Emit tone signal using the emission function of AD9361 module, while being corrected the reception of data using multiple channels AD9361 that system carries；All channel reception data are calculated, subsequently into Validation Mode, single-carrier signal is sent by signal source；Using AD9361 module transmitting and receive verify data, the delay in calculated each channel, amplitude and phase value, to each channel carry out parameter compensation；Verify data is received and is observed, if the signal received it is corresponding delay, amplitude and phase it is completely the same, illustrate that test method is effective.Method versatility proposed by the present invention is high, does not need additional hardware design, it is only necessary to provide reasonable computing resource；Method proposed by the present invention is simple and easy, can satisfy the use demand under various scenes.
Description
Technical field
The present invention relates to channel parameters measuring technology in a kind of communication system more particularly to a kind of included AD9361 cores
The multiple channel test method and device of the system of piece.
Background technique
In a communications system, it usually needs multiple transmission channels or receiving channel use simultaneously, with lifting system performance,
It must assure that the channel parameters in multiple channels are consistent, thus to ensure that system performance is normal.
AD9361 chip is generallyd use in business communications system at present as the transceiver channel of system.In order to ensure multiple
The channel parameters consistency in the channel AD9361 is typically necessary and carries out accurate hardware design with communication protocol design to guarantee.
This method realizes that difficulty is higher, and one to carry out hardware design difficulty higher, carries out careful designs in particular for thousands of a channels,
Cost and difficulty are very big, consistency it is difficult to ensure that, while need technical protocol be usually commercial technology agreement, these all make
The use for obtaining AD9361 has limitation, it is difficult to be generalized to as private communications fields such as satellite communications.
The multi-pass trace consistency design of the existing system for AD9361 chip needs complicated and accurate hardware design,
Cost is sharply increased with the increase of port number, and the prior art is led to for the lane testing of AD9361 chip frequently with commercial
Believe technical protocol, limitation is larger, and the prior art usually requires professional and special to the lane testing of AD9361 chip
Testing meter and instrument.
Summary of the invention
Technical problem to be solved by the present invention lies in: how to reduce system survey of the difficulty realization to included AD9361 chip
Examination, provides a kind of multiple channel test method and device of the system of included AD9361 chip.
The present invention is to solve above-mentioned technical problem, a kind of included AD9361 chip of the invention by the following technical programs
System multiple channel test method, comprising the following steps:
(1) AD9361 module is configured, the IQ for closing the receiving channel of AD9361 module corrects following function；
(2) enter correction mode, be sin by the signal source transmitting road I, the road Q is the orthogonal tone signal of cos；
(3) emit tone signal, while the multiple AD9361 carried using system using the emission function of AD9361 module
Channel is corrected the reception of data；
(4) all channel reception data are calculated, wherein the data that i-th of channel sample obtains are respectively Wherein m is final hits；
For the hits, successively sliding samples N number of sampled value to sequence, and calculates
Wherein | P (k) | the corresponding k of maximum absolute value*Value is the delay of corresponding channel, | P (k*) | it is the amplitude of corresponding channel, angle
(P(k*)) be corresponding channel phase value；
(5) subsequently into Validation Mode, sending the road I by signal source is single carrier, and the road Q is the single-carrier signal of 0 value；
(6) using the transmitting of AD9361 module and receive verify data；
(7) delay in calculated each channel, amplitude and phase value carry out parameter compensation to each channel；
(8) verify data is received and is observed, if the signal received it is corresponding delay, amplitude and phase it is complete
Unanimously, then illustrate that test method is effective.
In the step (2), orthogonal tone signal uses 8 sampling rates, tone signal points be it is N number of, wherein N can be with
It is adjusted according to the received signal-to-noise ratio of system, N is bigger, and system-computed performance is better.
In the step (3), it is received as 8 sampling rates.
For different systems, test method is the same, as long as the sampled data N value by adjusting signal source module,
Not homologous ray, suitable lane testing method under different signal-to-noise ratio can be obtained.
A kind of device that the multiple channel test method of the system using the included AD9361 chip is tested, it is described
Device includes signal source module, AD9361 module, parameter calculating module, parameter compensation module and Observation Blocks；
The signal source module generates the single-carrier signal for the tone signal of channel correcting and for verifying；
The AD9361 module realizes that issuing signal to signal source module receives using AD9361 chip, and signal is sent
To parameter calculating module；
The parameter calculating module is for calculating the corresponding delay in each channel, phase and amplitude parameter；
Delay using each channel measured of the parameter compensation module, phase and amplitude parameter, to checking signal into
The compensation of row parameter；
The Observation Blocks determine whether channel correcting succeeds by the verify data in each channel of observation.
The present invention has the advantage that method versatility proposed by the present invention is high compared with prior art, does not need additional
Hardware design, it is only necessary to which reasonable computing resource is provided；Method proposed by the present invention, means of testing are all very common
, AD9361 chip can be supported to be applied to multiple private communication fields, including satellite communication etc.；Method letter proposed by the present invention
It is single easy, it can satisfy the use demand under various scenes.
Detailed description of the invention
Fig. 1 is structural block diagram of the invention；
Fig. 2 is system flow chart of the invention.
Specific embodiment
It elaborates below to the embodiment of the present invention, the present embodiment carries out under the premise of the technical scheme of the present invention
Implement, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to following implementation
Example.
As shown in Figure 1, the present embodiment includes signal source module, AD9361 module, parameter calculating module, parameter compensation module
And Observation Blocks.Wherein signal source module can produce the tone signal for channel correcting and the single carrier letter for verifying
Number；
AD9361 module corresponds to the transceiver channel realized in general system using AD9361 chip；
Parameter calculating module is for calculating the corresponding delay in each channel, phase and amplitude parameter；
Parameter compensation module utilizes the delay in each channel measured, phase and amplitude parameter, joins to checking signal
Number compensation；
Observation Blocks determine whether channel correcting succeeds by the verify data in each channel of observation.
As shown in Fig. 2, the multiple channel test method of the present embodiment, comprising the following steps:
(1) open communication system configures AD9361 parameter, and the IQ for closing AD9361 receiving channel corrects following function；
(2) configuration signal source module is correcting state, and the transmitting road I is sin, and the road Q is the orthogonal tone signal of cos, using 8
Sampling rate, tone signal points be it is N number of, wherein N can be adjusted according to the received signal-to-noise ratio of system, and N is bigger, system
Calculated performance is better；
(3) emit tone signal using the emission function of AD9361 module, while utilizing multiple channels AD9361 of system
It is corrected the reception of data, is received as 8 sampling rates；
(4) all channel reception data are calculated using parameter calculating module.Wherein i-th of channel sample obtains
Data are respectivelyWherein m is final hits.For the hits, successively sliding samples N to sequence
A sampled value, and calculateWherein | P (k) | the corresponding k of maximum absolute value*
Value is the delay of corresponding channel, | P (k*) | it is the amplitude of corresponding channel, angle (P (k*)) is the phase value of corresponding channel；
(5) after completing above-mentioned calculating, Validation Mode is configured by signal source module, the transmission road I is single carrier, and the road Q is 0
The single-carrier signal of value, using 8 times of polydispersity index, sampling number N；
(6) verify data is sent and received using AD9361 module；
(7) parameter compensation module is opened, the delay in each channel being calculated in step (4), amplitude and phase are utilized
Value carries out parameter compensation to each channel；
(8) Observation Blocks are opened, the verify data after parameter compensation module is received and observed, if received
Signal it is corresponding delay, amplitude and phase it is completely the same, then illustrate that test method is effective.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (4)
1. a kind of multiple channel test method of the system of included AD9361 chip, which comprises the following steps:
(1) AD9361 module is configured, the IQ for closing the receiving channel of AD9361 module corrects following function；
(2) enter correction mode, be sin by the signal source transmitting road I, the road Q is the orthogonal tone signal of cos；
(3) emit tone signal, while the multiple channels AD9361 carried using system using the emission function of AD9361 module
It is corrected the reception of data；
(4) all channel reception data are calculated, wherein the data that i-th of channel sample obtains are respectively Wherein m is final hits；
For the hits, successively sliding samples N number of sampled value to sequence, and calculates
Wherein | P (k) | the corresponding k of maximum absolute value*Value is the delay of corresponding channel, | P (k*) | it is the amplitude of corresponding channel, angle
(P(k*)) be corresponding channel phase value；
(5) subsequently into Validation Mode, sending the road I by signal source is single carrier, and the road Q is the single-carrier signal of 0 value；
(6) using the transmitting of AD9361 module and receive verify data；
(7) delay in calculated each channel, amplitude and phase value carry out parameter compensation to each channel；
(8) verify data is received and is observed, if the corresponding delay of the signal received, amplitude and phase complete one
It causes, then illustrates that test method is effective.
2. a kind of multiple channel test method of the system of included AD9361 chip according to claim 1, which is characterized in that
In the step (2), orthogonal tone signal use 8 sampling rates, tone signal points be it is N number of, wherein N can be according to system
Received signal-to-noise ratio is adjusted, and N is bigger, and system-computed performance is better.
3. a kind of multiple channel test method of the system of included AD9361 chip according to claim 2, which is characterized in that
In the step (3), it is received as 8 sampling rates.
What 4. a kind of multiple channel test method of the system using included AD9361 chip as described in claim 1 was tested
Device, which is characterized in that the system comprises signal source module, AD9361 module, parameter calculating module, parameter compensation module and
Observation Blocks；
The signal source module generates the single-carrier signal for the tone signal of channel correcting and for verifying；
The AD9361 module realizes that issuing signal to signal source module receives using AD9361 chip, and sends signal to ginseng
Number computing module；
The parameter calculating module is for calculating the corresponding delay in each channel, phase and amplitude parameter；
The parameter compensation module utilizes the delay in each channel measured, phase and amplitude parameter, joins to checking signal
Number compensation；
The Observation Blocks determine whether channel correcting succeeds by the verify data in each channel of observation.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114268382A (en) * | 2022-02-28 | 2022-04-01 | 四川鸿创电子科技有限公司 | Method, device and equipment for automatically calibrating AD9361 board card and storage medium |
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