CN115336428B - Rocket-borne relay terminal phased array antenna beam pointing test method - Google Patents
Rocket-borne relay terminal phased array antenna beam pointing test method Download PDFInfo
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- CN115336428B CN115336428B CN201218004570.XA CN201218004570A CN115336428B CN 115336428 B CN115336428 B CN 115336428B CN 201218004570 A CN201218004570 A CN 201218004570A CN 115336428 B CN115336428 B CN 115336428B
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Abstract
The invention relates to a rocket missile-borne relay terminal phased array antenna beam pointing test method, which comprises the following steps: (1) Carrying out darkroom test on the rocket projectile-borne relay terminal to verify whether the rocket projectile-borne relay terminal works normally or not; (2) Building a full-true simulation test system, wherein the full-true simulation test system comprises ground detection equipment and a three-dimensional UOO turntable; (3) Embedding a trajectory into the built full-simulation test system, converting trajectory information into control information which accords with the motion characteristics of a three-dimensional UOO turntable according to the relation between the rotation mode of the three-dimensional UOO turntable and the posture change of a projectile body, and realizing the embedding of the trajectory into the full-simulation test system; (4) Completing a full-true simulation test of the pointing direction of the rocket-borne relay terminal phased-array antenna beam; the invention solves the problem that the wave beam direction of the phased array antenna cannot be tested due to the external radiation characteristic of the rocket missile-borne phased array antenna, and realizes the full-true simulation test of the rocket missile-borne relay terminal.
Description
Technical Field
The invention relates to a rocket missile-borne relay terminal phased array antenna beam pointing test method, and belongs to the technical field of rocket missile-borne space-based measurement and control.
Background
Space-based measurement and control is a technology for measurement and control and data transmission by using a relay satellite. The design idea of the space-based network fundamentally solves the problem of high coverage rate of measurement and control and communication, the number of land-based and sea-based measurement and control stations can be greatly reduced by building the space-based network, and in recent years, with the gradual construction and deep application of relay satellite systems in China, the research of space-based measurement and control technologies based on different user platforms in various fields gradually becomes a hotspot.
The rocket projectile-borne relay user terminal is wireless transmission equipment which is arranged on a rocket projectile platform and completes forward return telemetering and remote control tasks by establishing a link with a ground measurement and control network through a relay satellite system. The measurement and control of the carrier rocket through the relay satellite system is an important direction for realizing the measurement and control application of the high coverage rate of the aircraft at present.
In 7 months 2012, the carrier rocket for implementing relay measurement and control by using a relay satellite system in China first flies satisfactorily. The rocket-borne relay terminal developed by the inventor is excellent in flight test, solves the problem that the measurement and control of the 'gliding section' of the carrier rocket cannot be fully covered, eliminates the dead zone of the measurement and control of the rocket, and successfully fills the gap in the relay measurement and control field of the carrier rocket in China.
The rocket missile-borne relay terminal mainly comprises a space-based measurement and control device, a phased array antenna and the like, and the principle composition is shown in a figure 1. Because the phased array antenna is used as the external radiation unit of the relay terminal, the phased array antenna controls the direction of the antenna beam by changing the phase of each unit in the antenna array, the forming of the direction of the external radiation beam is quite flexible, and is completely different from the traditional omnidirectional antenna, and meanwhile, the working state of a link established between the relay terminal and a relay satellite needs to be simulated, so that the overall working characteristic and index testing method of the relay terminal has larger difference compared with the traditional measurement and control equipment, and the traditional static testing method cannot meet the testing requirement, therefore, a new testing method needs to be sought.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides a method for testing the wave beam direction of a phased array antenna of a rocket-borne relay terminal, solves the problem that the wave beam direction of the phased array antenna cannot be tested due to the external radiation characteristic of the rocket-borne phased array antenna, and realizes the full-true simulation test of the rocket-borne relay terminal.
The above purpose of the invention is mainly realized by the following technical scheme:
a rocket-borne relay terminal phased-array antenna beam pointing test method comprises the following steps:
(1) Carrying out darkroom test on the rocket missile-borne relay terminal, verifying whether the rocket missile-borne relay terminal normally works or not, wherein the rocket missile-borne relay terminal comprises a space-based measurement and control device and a phased array antenna, and entering the step (2) if the rocket missile-borne relay terminal normally works;
(2) Building an all-true simulation test system, wherein the all-true simulation test system comprises ground detection equipment and a three-dimensional UOO turntable, installing the rocket projectile-borne relay terminal on the three-dimensional UOO turntable, and respectively connecting the ground detection equipment with the rocket projectile-borne relay terminal and the three-dimensional UOO turntable;
(3) Embedding a trajectory into the built full-simulation test system, converting trajectory information into control information according with the motion characteristics of a three-dimensional UOO turntable according to the relation between the rotation mode of the three-dimensional UOO turntable and the posture change of a projectile body, and realizing the embedding of the trajectory into the full-simulation test system, wherein the specific method comprises the following steps:
obtaining an attitude angle rotation matrix R according to the motion characteristics of the rocket projectile body:
attitude angle rotation matrix R obtained according to motion characteristics of three-dimensional UOO turntable 1 ：
Wherein:
is the pitching attitude angle of the arrow projectile body, theta is the yawing attitude angle of the arrow projectile body, gamma is the rolling attitude angle of the arrow projectile body,
to control the pitch attitude angle, θ, of a three-dimensional UOO turntable 1 To control the yaw attitude angle, γ, of a three-dimensional UOO turntable 1 To control the rolling attitude angle of the three-dimensional UOO turntable;
when the attitude angle rotation matrix R is obtained according to the motion characteristics of the rocket projectile body and the attitude angle rotation matrix R is obtained according to the characteristics of the three-dimensional UOO turntable 1 When the three-dimensional space is equal, the three-dimensional UOO turntable full-true simulation rocket projectile body posture change is realized;
let R = R 1 Then:
θ 1 ＝arcsin(-r 3 )
(4) The method for completing the full-true simulation test of the rocket missile-borne relay terminal phased-array antenna beam pointing specifically comprises the following steps:
a) And (4) ground detection equipment in the full-true simulation test system according to the attitude information obtained in the step (3)
θ 1 ，γ 1 Controlling the three-dimensional UOO turntable to move so as to simulate the change of the posture of the rocket projectile body and simultaneously adjust the pitching posture angle of the rocket projectile body
The yaw attitude angle theta of the rocket projectile body and the rolling attitude angle gamma of the rocket projectile body are coded into a telemetering data frame and output to a rocket projectile-mounted relay terminal in a telemetering data stream mode;
b) And the rocket projectile-loaded relay terminal carries out route selection processing on the telemetering data stream and selects out the attitude information of the rocket projectile body
Theta, gamma, and using attitude information
And calculating the pointing angle of theta and gamma, and outputting the calculated pointing angle value to the rocket missile-borne relay terminal phased-array antenna to enable the beam of the phased-array antenna to point to the relay satellite used by the flight mission.
c) And the satellite control and management center receives and demodulates the return wireless signals forwarded by the relay satellite, judges and reads the telemetering data stream obtained by demodulation, and judges whether the rocket-loaded relay terminal phased-array antenna wave beam points to the relay satellite.
In the method for testing phased array antenna beam pointing of the rocket missile-borne relay terminal, the darkroom test of the rocket missile-borne relay terminal in the step (1) specifically comprises the following steps:
(1) Firstly, a darkroom testing system is set up
The darkroom test system comprises a two-dimensional rotary table, darkroom ground detection equipment and a test receiving antenna, wherein the two-dimensional rotary table is used for simulating the posture change of the rocket missile-borne relay terminal, the darkroom ground detection equipment is used for controlling the two-dimensional rotary table and controlling and detecting the rocket missile-borne relay terminal, and the test receiving antenna is used for verifying the beam direction of a phased array antenna of the rocket missile-borne relay terminal;
(2) Rocket missile-borne relay terminal phased array antenna index test
The method comprises the steps that a phased array antenna of the rocket missile-borne relay terminal is installed on a two-dimensional rotary table, amplitude phase consistency calibration of each unit of the phased array antenna is completed, the rotating angle of the two-dimensional rotary table is set through darkroom ground detection equipment, meanwhile, input control of a phased array antenna beam controller is changed through the darkroom ground detection equipment, the combined angle of the phased array antenna beam and the rotating angle of the two-dimensional rotary table form compensation, and therefore the phased array antenna is pointed to a test receiving antenna, indexes of the phased array antenna are tested, and whether the rocket missile-borne relay terminal works normally or not is verified;
(3) Rocket-borne relay terminal system and interface test
The darkroom ground detection equipment generates a return telemetering data stream according to an appointed protocol, after modulation and frequency conversion are carried out by the space-based measurement and control equipment, a phased array antenna transmits a frequency-converted signal to a test receiving antenna as a return radio frequency signal, the darkroom ground detection equipment receives and demodulates the return radio frequency signal, carries out error code statistics on the demodulated telemetering data stream, and tests the system and the interface of the rocket-loaded relay terminal through the darkroom ground detection equipment.
Compared with the prior art, the invention has the following advantages:
(1) The rocket-borne relay user terminal is used as a new technology and new equipment, the external radiation characteristic of a rocket-borne phased array antenna is different from that of a traditional antenna, and the traditional test method cannot meet the test requirement on the performance of the phased array antenna;
(2) In the all-true simulation test of the rocket-borne relay terminal, the trajectory is innovatively embedded into the all-true simulation test system, the actual working state of the rocket-borne relay terminal is simulated, the test coverage and the test precision of the rocket-borne relay terminal are improved, and the development of a rocket-borne space-based measurement and control technology is promoted;
(3) The method is suitable for testing the pointing direction of the wave beam of the rocket-borne relay terminal phased array antenna, a testing system is built in an external field, the actual working state of the relay user terminal is simulated by simulating the actual posture change of a rocket body by means of a three-dimensional UOO turntable, and meanwhile, the posture change in the trajectory is converted into the information suitable for testing the rotation characteristic of the three-dimensional UOO turntable of the system by utilizing a posture angle conversion algorithm, so that the dynamic simulation test of the pointing direction of the wave beam of the rocket-borne relay terminal phased array antenna is realized, and the testing method is simple, convenient and feasible and has strong operability.
Drawings
Fig. 1 is a working schematic diagram of a rocket-loaded relay terminal;
FIG. 2 is a flow chart of a method for testing the phased array antenna beam pointing direction of the rocket-borne relay terminal according to the present invention;
fig. 3 is a flow chart of darkroom testing of the rocket projectile-borne relay terminal according to the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and specific embodiments.
As shown in fig. 2, a flow chart of the method for testing the phased array antenna beam direction of the rocket-borne relay terminal of the present invention is shown, and the method for testing the phased array antenna beam direction of the rocket-borne relay terminal of the present invention includes the following steps:
the method comprises the following steps of (I) carrying out darkroom test on the rocket projectile-borne relay terminal, and verifying whether the rocket projectile-borne relay terminal normally works or not, wherein the rocket projectile-borne relay terminal comprises a space-based measurement and control device and a phased array antenna, and the phased array antenna and the space-based measurement and control device are installed on a rocket projectile-borne platform and are used for relaying a satellite space-based communication system and generating a rocket projectile-borne space-based backward remote signal. If the rocket-borne relay terminal works normally, entering the step (II);
the darkroom test needs to be realized by the following steps:
1. phased array antenna index testing
The main test indexes of the phased array antenna comprise: standing wave ratio, gain, beam width, synthetic pointing direction, directional pattern and the like. The voltage standing wave ratio of the microstrip antenna of the antenna unit can be measured by a vector network analyzer according to a standard method.
Except for the standing-wave ratio index, other performance parameters of the antenna need to be tested and verified in a microwave darkroom.
The method comprises the steps of firstly, building a darkroom test system, wherein the darkroom test system comprises a two-dimensional rotary table, darkroom ground detection equipment and a test receiving antenna, the two-dimensional rotary table is used for simulating posture change of the rocket-missile-borne relay terminal, the darkroom ground detection equipment is used for controlling the two-dimensional rotary table and controlling and detecting the rocket-missile-borne relay terminal, and the test receiving antenna is used for verifying beam pointing of a phased array antenna of the rocket-missile-borne relay terminal.
As shown in fig. 3, which is a darkroom test flow chart of the rocket projectile-borne relay terminal of the present invention, a phased array antenna of the rocket projectile-borne relay terminal is installed on a two-dimensional turntable to complete the amplitude phase consistency calibration of each unit of the phased array antenna, the rotation angle of the two-dimensional turntable is set by darkroom ground detection equipment, and simultaneously, the input control of a phased array antenna beam controller is changed by the darkroom ground detection equipment, so that the combined angle of the phased array antenna beam and the rotation angle of the two-dimensional turntable form compensation, thereby pointing to a test receiving antenna.
At this time, indexes such as a directional pattern, gain, beam width and the like of the phased array antenna in different beam synthesis angle states can be obtained through an antenna radiation characteristic test. According to the test method, different beam combination angles can be selected in the antenna scanning coverage range by an 'equal interval' strategy to carry out repeated test; and fitting the test results under different beam synthesis angles to finally obtain the complete external radiation characteristic of the phased array antenna under the whole scanning coverage airspace.
2. Relay terminal system and interface test
The test is mainly used for verifying the main system performance and the interface matching performance of the rocket missile-borne relay terminal equipment.
The darkroom test system built during the phased array antenna index test is adopted for testing, wherein the darkroom ground detection equipment is a computer with demodulation, decoding and other functions, and is used for simulating the relay satellite ground system to detect the rocket-borne relay terminal transmitting and receiving signal format system, and completing the work of interface test and the like in a matching manner.
The test receiving antenna can be combined with darkroom ground detection equipment to form a self-checking channel, and the system of the user terminal is verified.
The specific test flow is as follows:
as shown in fig. 3, a darkroom ground detection device generates a return telemetering data stream according to an agreed protocol, a phased array antenna transmits a frequency-converted signal as a return radio frequency signal to a test receiving antenna after modulation and frequency conversion by a space-based measurement and control device, the darkroom ground detection device receives and demodulates the return radio frequency signal after attenuated and frequency converted in an agreed format, and performs error code statistics on the demodulated telemetering data stream; and testing the system and the interface of the rocket missile-borne relay terminal by setting the ground detection equipment to be in different modes.
Step (II) of establishing a full-true simulation test system
And under the condition that the darkroom test of the relay user terminal is finished, a full-true simulation test system is built in an external field.
The full-true simulation test system comprises ground detection equipment and a three-dimensional UOO turntable, and the rocket projectile-loaded relay terminal is installed in the innermost rotating plane of the three-dimensional UOO turntable, so that the installation relation between the phased array antenna and the turntable can simulate the installation relation between the phased array antenna and the rocket projectile body during actual flight. The ground detection equipment is respectively connected with the rocket projectile-loaded relay terminal and the three-dimensional UOO turntable;
step three, embedding the trajectory into a full-simulation test system
According to the relation between the three-dimensional UOO turntable rotation mode and rocket body attitude change, the ballistic attitude information is converted into control information which accords with the turntable motion characteristics, and ballistic embedding into a test system is achieved. The conversion relationship is as follows:
setting:
r is an attitude angle rotation matrix obtained according to the motion characteristics of the rocket projectile body, R 1 The attitude angle rotation matrix is obtained according to the motion characteristics of the rotary table,
is the pitch attitude angle of the known rocket projectile, theta is the yaw attitude angle of the known rocket projectile, gamma is the rolling attitude angle of the known rocket projectile,
to control the pitch attitude angle, θ, of a three-dimensional UOO turntable 1 To control the yaw attitude angle, γ, of a three-dimensional UOO turntable 1 To control the roll attitude angle of the three-dimensional UOO turret.
When the attitude angle rotation matrix R is obtained according to the motion characteristics of the rocket projectile body and the attitude angle rotation matrix R is obtained according to the characteristics of the three-dimensional UOO turntable 1 When the three-dimensional rotating platform is equal, the three-dimensional rotating platform full-true simulation rocket projectile body posture change is realized.
Let R = R 1 And then:
θ 1 ＝arcsin(-r 3 ) (3)
step (IV), completing the full-true simulation test of the pointing direction of the rocket missile-borne relay terminal phased array antenna wave beam:
a) And (3) the ground detection equipment in the full-true simulation test system obtains attitude information according to the step (three)
θ 1 ，γ 1 Controlling three-dimensional UOO turntable motion for simulating rocket projectile poseThe change of state and the pitching attitude angle of the rocket projectile body
The yaw attitude angle theta of the rocket projectile body and the rolling attitude angle gamma of the rocket projectile body are framed by a telemetering simulation source and output to a rocket projectile-mounted relay terminal in a telemetering data stream mode;
b) And the rocket projectile-loaded relay terminal carries out route selection processing on the telemetering data stream and selects out the attitude information of the rocket projectile body
Theta, gamma, and using attitude information
Calculating pointing angles of theta and gamma, and outputting the calculated angle values to the rocket missile-borne relay terminal phased-array antenna to enable beams of the phased-array antenna to point to a relay satellite used by a flight mission;
c) And the satellite control and management center receives and demodulates the return wireless signals forwarded by the relay satellite, judges the telemetering data stream obtained by demodulation, and judges whether the rocket-loaded relay terminal phased-array antenna wave beam points to the relay satellite.
The above description is only for the best mode of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Those skilled in the art will appreciate that the invention may be practiced without these specific details.
Claims (2)
1. A rocket-borne relay terminal phased-array antenna beam pointing test method is characterized by comprising the following steps:
(1) Carrying out darkroom test on the rocket missile-borne relay terminal, verifying whether the rocket missile-borne relay terminal normally works or not, wherein the rocket missile-borne relay terminal comprises a space-based measurement and control device and a phased array antenna, and entering the step (2) if the rocket missile-borne relay terminal normally works;
(2) Building an all-true simulation test system, wherein the all-true simulation test system comprises ground detection equipment and a three-dimensional UOO rotary table, installing the rocket projectile-borne relay terminal on the three-dimensional UOO rotary table, and respectively connecting the ground detection equipment with the rocket projectile-borne relay terminal and the three-dimensional UOO rotary table;
(3) Embedding a trajectory into the built full-simulation test system, converting trajectory information into control information according with the motion characteristics of a three-dimensional UOO turntable according to the relation between the rotation mode of the three-dimensional UOO turntable and the posture change of a projectile body, and realizing the embedding of the trajectory into the full-simulation test system, wherein the specific method comprises the following steps:
obtaining an attitude angle rotation matrix R according to the motion characteristics of the rocket projectile body:
attitude angle rotation matrix R obtained according to motion characteristics of three-dimensional UOO turntable 1 ：
Wherein:
is the pitching attitude angle of the arrow projectile body, theta is the yawing attitude angle of the arrow projectile body, gamma is the rolling attitude angle of the arrow projectile body,
to control the pitch attitude angle, θ, of a three-dimensional UOO turntable 1 To control the yaw attitude angle, γ, of a three-dimensional UOO turntable 1 To control the rolling attitude angle of the three-dimensional UOO turntable;
when the attitude angle rotation matrix R is obtained according to the motion characteristics of the rocket projectile body and the attitude angle rotation matrix R is obtained according to the characteristics of the three-dimensional UOO turntable 1 When the same, the three-dimensional UOO turntable is realizedSimulating the posture change of the rocket projectile in a full-true manner;
let R be 1 = R, then:
θ 1 ＝arctan(-r 3 /r 1 )
γ 1 ＝arctan(-r 8 /r 5 )；
(4) The method for completing the full-true simulation test of the wave beam pointing of the rocket missile-borne relay terminal phased array antenna specifically comprises the following steps:
a) And (4) ground detection equipment in the full-true simulation test system according to the attitude information obtained in the step (3)
θ 1 ，γ 1 Controlling the three-dimensional UOO turntable to move so as to simulate the change of the posture of the rocket projectile body and simultaneously adjust the pitching posture angle of the rocket projectile body
The yaw attitude angle theta of the rocket projectile body and the rolling attitude angle gamma of the rocket projectile body are coded into a telemetering data frame and output to a rocket projectile-mounted relay terminal in a telemetering data stream mode;
b) And the rocket projectile-loaded relay terminal carries out route selection processing on the telemetering data stream and selects out the attitude information of the rocket projectile body
Theta, gamma, and using attitude information
Calculating the pointing angle of theta and gamma, and outputting the calculated pointing angle value to the rocket missile-borne relay terminal phased-array antenna to enable the beam of the phased-array antenna to point to a relay satellite used by a flight task;
c) And the satellite control and management center receives and demodulates the return wireless signals forwarded by the relay satellite, judges the telemetering data stream obtained by demodulation, and judges whether the rocket-loaded relay terminal phased-array antenna wave beam points to the relay satellite.
2. The rocket-borne relay terminal phased-array antenna beam pointing test method according to claim 1, characterized in that: the darkroom test of the rocket projectile relay terminal in the step (1) specifically comprises the following steps:
(1) Firstly, a darkroom testing system is set up
The darkroom test system comprises a two-dimensional rotary table, darkroom ground detection equipment and a test receiving antenna, wherein the two-dimensional rotary table is used for simulating the posture change of the rocket missile-borne relay terminal, the darkroom ground detection equipment is used for controlling the two-dimensional rotary table and controlling and detecting the rocket missile-borne relay terminal, and the test receiving antenna is used for verifying the beam direction of a phased array antenna of the rocket missile-borne relay terminal;
(2) Rocket missile-borne relay terminal phased array antenna index test
The method comprises the steps that a phased array antenna of the rocket missile-borne relay terminal is installed on a two-dimensional rotary table, amplitude phase consistency calibration of each unit of the phased array antenna is completed, the rotating angle of the two-dimensional rotary table is set through darkroom ground detection equipment, meanwhile, input control of a phased array antenna beam controller is changed through the darkroom ground detection equipment, the combined angle of the phased array antenna beam and the rotating angle of the two-dimensional rotary table form compensation, and therefore the phased array antenna is pointed to a test receiving antenna, indexes of the phased array antenna are tested, and whether the rocket missile-borne relay terminal works normally or not is verified;
(3) Rocket missile-borne relay terminal system and interface test
The darkroom ground detection equipment generates a return telemetering data stream according to an appointed protocol, after modulation and frequency conversion are carried out by the space-based measurement and control equipment, a phased array antenna transmits a frequency-converted signal to a test receiving antenna as a return radio frequency signal, the darkroom ground detection equipment receives and demodulates the return radio frequency signal, carries out error code statistics on the demodulated telemetering data stream, and tests the system and the interface of the rocket-loaded relay terminal through the darkroom ground detection equipment.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597399A (en) * | 2017-01-10 | 2017-04-26 | 四川九洲电器集团有限责任公司 | Evaluation system and performance testing method for phased array system |
| CN111398917A (en) * | 2020-02-27 | 2020-07-10 | 四川九洲防控科技有限责任公司 | Antenna beam pointing test method |
| CN114047387A (en) * | 2021-11-04 | 2022-02-15 | 中国电子科技集团公司第二十九研究所 | System and method for testing radiation direction of electronic radiation system |
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2012
- 2012-10-15 CN CN201218004570.XA patent/CN115336428B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597399A (en) * | 2017-01-10 | 2017-04-26 | 四川九洲电器集团有限责任公司 | Evaluation system and performance testing method for phased array system |
| CN106597399B (en) * | 2017-01-10 | 2023-10-03 | 四川九洲电器集团有限责任公司 | Evaluation system and performance test method of phased array system |
| CN111398917A (en) * | 2020-02-27 | 2020-07-10 | 四川九洲防控科技有限责任公司 | Antenna beam pointing test method |
| CN111398917B (en) * | 2020-02-27 | 2023-06-20 | 四川九洲防控科技有限责任公司 | Antenna beam pointing test method |
| CN114047387A (en) * | 2021-11-04 | 2022-02-15 | 中国电子科技集团公司第二十九研究所 | System and method for testing radiation direction of electronic radiation system |
| CN114047387B (en) * | 2021-11-04 | 2023-04-25 | 中国电子科技集团公司第二十九研究所 | System and method for testing radiation direction of electronic radiation system |
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