Rotary telescopic dual coherent antenna and azimuth adjustment method thereof

Abstract

The application discloses a rotary telescopic dual-coherent antenna and an azimuth adjusting method thereof, wherein the rotary telescopic dual-coherent antenna comprises a pair of antenna monomers, each of which is provided with a rotating platform and a lifting device arranged on the rotating platform, the upper end of the lifting device is provided with an antenna body, the rotating platform is used for driving the lifting device and the antenna body to rotate around a vertical line, and the lifting device is used for driving the antenna body to ascend and descend. Advantageous effects: the technical scheme of the application can achieve various different baseline lengths by setting the rotary telescopic dual-coherent antenna, controlling the rotation or the ascent and descent of the dual-coherent antenna, thereby realizing the function of receiving signals of any azimuth and emitting coherent signals of any azimuth, and effectively eliminating the problem that the existing antenna cannot fully play the function due to the blind area or the weak function area.

Description

Technical Field

[0001] This invention relates to the field of antennas, and in particular to a rotary telescopic dual-coherent antenna and its azimuth adjustment method. Background Technology

[0002] Currently, most antennas on ships are fixed antennas, with fixed installation locations. This results in blind spots or weak functional areas, limiting the application scenarios of the antennas and causing them to be unable to adapt to certain scenarios, thus preventing them from functioning properly. Summary of the Invention

[0003] The main objective of this invention is to propose a rotary telescopic dual-coherent antenna and its azimuth adjustment method to solve the problem mentioned in the background art that current ship antennas have blind spots or weak functional areas due to their fixed installation positions, thus failing to fully utilize the antenna's functions.

[0004] To solve the above problems, the present invention proposes a rotary telescopic dual coherent antenna, which includes a pair of antenna units. Each antenna unit has a rotating platform and a lifting device disposed on the rotating platform. The lifting device is provided with a telescopic antenna arm, and the upper end of the antenna arm is provided with an antenna body.

[0005] In one embodiment, the rotating platform includes legs and a turntable mounted on the legs. The upper surface of the turntable is recessed to form a mounting hole for rotating and mounting a geared disc. A rotary motor that is connected to the geared disc is fixed on the lower surface of the turntable.

[0006] In one embodiment, the turntable has a mounting groove on its side that communicates with the mounting hole, and a gear fixedly connected to the output shaft of the rotary motor is provided in the mounting groove, the gear meshing with the gear plate.

[0007] In one embodiment, a column is fixedly mounted on the upper surface of the gear disk, and a mounting plate is fixedly mounted on the upper end of the column. Multiple screws are vertically and rotatably inserted into the mounting plate, and a sliding plate is spirally sleeved on the multiple screws. The sliding plate is located above the mounting plate. A lifting motor that is drivenly connected to the screws is fixedly mounted on the mounting plate. An antenna arm is hinged to the sliding plate, and an antenna body is hinged to the upper end of the antenna arm.

[0008] Furthermore, to address the aforementioned problems, this invention also proposes a method for azimuth adjustment of a rotating telescopic dual-coherent antenna, comprising:

[0009] Obtain the target's bearing λ;

[0010] Adjust the antenna's azimuth and altitude according to the target's bearing.

[0011] In one embodiment, the target's bearing λ is obtained through a reconnaissance and positioning device.

[0012] In one embodiment, λ∈[-180°, 180°].

[0013] In one embodiment, adjusting the antenna's azimuth and altitude according to the target's bearing includes:

[0014] Determine the center line of symmetry for the rotating telescopic dual-coherent antenna;

[0015] Adjust the angles x1 and x2 between the transmit / receive directions of the dual coherent antenna and the center line of symmetry according to the target's hull position;

[0016] Adjust the height of the dual-coherent antenna according to the target's bearing.

[0017] In one embodiment, x1∈[0°, 180°], x2∈[0°, 180°].

[0018] In one embodiment, adjusting the angles x1 and x2 between the transmit / receive directions of the dual-coherent antenna and the center line of symmetry according to the target's hull position includes:

[0019] If λ∈[-90°, 90°], then x1=90-λ, x2=90+λ;

[0020] If λ∈[90°, 180°], then x1=270-λ, x2=λ-90;

[0021] If λ∈[-180°, -90°], then x1=-90-λ, x2=λ+270.

[0022] Beneficial effects: The technical solution of the present invention sets up a rotating telescopic dual coherent antenna, which can be controlled to rotate or rise and fall to achieve various different baseline lengths, thereby realizing the function of receiving signals from any direction and transmitting coherent signals from any direction. This effectively eliminates the problem of blind spots or weak functional areas of existing antennas that prevent the antenna from fully performing its function. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a front view of the rotary telescopic dual-coherent antenna of the present invention after it has been deployed;

[0025] Figure 2 This is a top view of the retracted rotary telescopic dual-phase coherent antenna of the present invention;

[0026] Figure 3 This is a bottom view of the mounting plate of the present invention;

[0027] Figure 4 This is a schematic diagram of the baseline of the present invention;

[0028] Figure 5 This is a schematic diagram of the chassis of the present invention after it is opened, showing the rotary telescopic dual coherent antenna in the deployed state.

[0029] Figure 6 This is a schematic diagram of the chassis of the present invention after it is closed, and the rotating telescopic dual coherent antenna shown in the figure is in the retracted state;

[0030] Figure 7 This is a top view of the chassis of the present invention after it has been closed;

[0031] Figure 8 This is a top view of the chassis of the present invention after it has been opened, and the rotating telescopic dual coherent antenna shown in the figure is in the retracted state.

[0032] Figure 9 yes Figure 8 A diagram showing the box after the lid has been removed.

[0033] The annotations in the attached figures are explained as follows:

[0034] 1. Turntable; 2. Support leg; 3. Gear plate; 4. Rotary motor; 5. Gear; 6. Mounting slot; 7. Column; 8. Mounting plate; 9. Lifting motor; 10. Screw; 11. Slide plate; 12. Antenna arm; 13. Antenna body; 14. Baseline; 15. Mounting hole; 16. Lifting device; 17. Housing; 18. Housing cover; 19. Extension hole; 20. Electromagnet one; 21. Electromagnet two; 22. Electromagnet three; 23. Electromagnet four; 24. Cover plate; 25. Brake motor. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0036] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0037] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0039] The rotating telescopic dual-phase coherent antenna proposed in this invention, such as Figure 4 As shown, it includes a pair of antenna units, such as Figures 1-3 As shown, each antenna unit has a rotating platform and a lifting device mounted on the rotating platform. The lifting device has a retractable antenna arm 12, and the upper end of the antenna arm 12 has an antenna body 13. The distance between the antenna bodies 13 of two antenna units is the length of the baseline 14. Figure 4 As shown, the rotating platform is used to drive the lifting device and the antenna body 13 to rotate around a vertical line to adjust the azimuth of the antenna. The lifting device and the telescopic antenna arm 12 are used to drive the antenna body 13 to rise and fall, and adjust the length of the baseline 14, thereby realizing the function of receiving signals from any direction and transmitting coherent signals from any direction. This effectively eliminates the problem of blind spots or weak functional areas in existing antennas that prevent the antenna from fully utilizing its function.

[0040] Specifically, in this embodiment, such as Figure 1 and Figure 2As shown, the rotating platform includes a support leg 2 and a turntable 1 mounted on the support leg 2. The upper surface of the turntable 1 is recessed to form a mounting hole 15 for rotating and mounting a gear disk 3. The gear disk 3 is rotatably mounted in the mounting hole 15. A rotary motor 4, which is connected to the gear disk 3, is fixed on the lower surface of the turntable 1.

[0041] Preferred, such as Figure 1 and Figure 2 As shown, the turntable 1 has a mounting groove 6 on its side that communicates with the mounting hole 15. The mounting groove 6 has a gear 5 that is fixedly connected to the output shaft of the rotary motor 4. The gear 5 meshes with the gear disk 3.

[0042] In this embodiment, as Figures 1-3 As shown, the lifting device includes a column 7, a mounting plate 8, multiple screws 10, a lifting motor 9, and a sliding plate 11. The column 7 is fixed to the upper surface of the gear plate 3, and the mounting plate 8 is fixed to the upper end of the column 7. Multiple screws 10 are vertically and rotatably inserted into the mounting plate 8, and the sliding plate 11 is spirally sleeved on the multiple screws 10. The sliding plate 11 is located above the mounting plate 8. The lifting motor 9, which is connected to the screws 10 for transmission, is fixed on the mounting plate 8. The rotation of the lifting motor 9 drives the screws 10 to rotate, and the rotation of the screws 10 drives the sliding plate 11 to rise and fall.

[0043] In this embodiment, an antenna arm 12 is hinged to the slide plate 11, and an antenna body 13 is hinged to the upper end of the antenna arm 12. The antenna body 13 is raised and lowered by controlling the movement of the lifting motor 9 and the extension and retraction of the antenna arm 12. The transmission / reception orientation of the antenna body 13 is adjusted by the movement of the rotary motor 4 to drive the gear disk 3 to rotate.

[0044] In this embodiment, to enable the antenna arm 12 to drive the antenna body 13 to quickly rise and fall to adjust the length of the baseline 14, such as... Figure 1 As shown, a lifting device 16 is also hinged to the slide plate 11. The fixed end of the lifting device 16 is hinged to the slide plate 11, and the movable end of the lifting device 16 is hinged to the antenna arm 12. The antenna arm 12 is essentially also a lifting device, such as a linear motor, cylinder, or hydraulic cylinder. The fixed end of the antenna arm 12 is hinged to the slide plate 11, and the movable end of the antenna arm 12 is hinged to the antenna body 13. The lifting device 16, in conjunction with the telescopic antenna arm 12, enables the antenna body 13 to be raised and lowered quickly.

[0045] Furthermore, in this embodiment, to quickly unfold and retract the antenna body 13 and save power-on / off time, such as... Figure 1As shown, a brake motor 25 is fixedly mounted on the antenna body 13. The output shaft of the brake motor 25 is fixedly connected to the movable end of the antenna arm 12. During the process of the lifting device 16 cooperating with the antenna arm 12 to retract or extend, the brake motor 25 rotates to drive the antenna body 13 to quickly rotate to the extension angle or retraction angle, thereby saving power-on and power-off time and improving the response efficiency of the dual coherent antenna.

[0046] In this embodiment, further, such as Figures 5-9 The rotating platform and lifting device are enclosed by a chassis, which includes a housing 17, a cover 18, and a cover plate 24. The bottom of the housing 17 is fixedly connected to the turntable 1. The upper end of the housing 17 is open and covered by the cover 18. The cover 18 is detachably fixedly connected to the housing 17. The cover 18 has an extension hole 19 for the antenna arm 12 and the antenna body 13 to enter and exit the chassis. The cover plate 24 is located on the upper surface of the cover 18, and one end of the cover plate 24 is hinged to the cover 18. Figures 6-8 As shown, the cover plate 24 can block the protruding hole 19 on the box cover 18, such as Figure 5 As shown, after the cover plate 24 is opened, the antenna body 13 and antenna arm 12 inside the housing 17 can be extended out through the extension hole 19. Of course, it can also be done as follows: Figure 6 As shown, the antenna body 13 and antenna arm 12, which are protruding outwards, are retracted into the housing 17 through the extension hole 19, and then the cover plate 24 is closed. When it is necessary to inspect and maintain the rotating platform and lifting device, the housing cover 18 can be removed.

[0047] In this embodiment, the rotating telescopic dual-coherent antenna is housed in a chassis, which prevents the antenna from being exposed to wind, sun, and rain when it is not powered on, thus avoiding potential malfunctions and reduced service life. Furthermore, the chassis protects the antenna from damage caused by external impacts, ensuring high safety.

[0048] In this embodiment, to enable the cover plate 24 to open and close quickly, thereby saving the power-on and power-off time of the rotary telescopic dual-phase antenna, such as... Figure 5 and Figure 6 As shown, an electromagnet 20 is fixedly mounted on the wall of the protruding hole 19, and an electromagnet 22 is fixedly mounted on the cover plate 24. When the cover plate 24 is closed to block the protruding hole 19, as... Figure 6 As shown, electromagnet 322 is located directly above electromagnet 120, with the two separated by a very small distance or in direct contact. This design... Figure 6When electromagnets 20 and 22 are energized, they generate magnetic force. According to the principle that like poles repel each other, electromagnet 22, driven by the magnetic force of electromagnet 20, quickly drives the cover plate 24 to rotate upward and open. The speed at which the cover plate 24 rotates upward and opens is related to the magnitude of the current flowing through electromagnets 20 and 22. In actual use, a reasonable current value can be set according to the actual situation.

[0049] In this embodiment, Figure 6 After electromagnet 1 20 and electromagnet 3 22 are energized for a period of time, they can be de-energized. The cover plate 24 is rotated upwards and opened by inertia to reduce power consumption. Preferably, the electromagnet 1 20 and electromagnet 3 22 are de-energized after the cover plate 24 is rotated upwards by 60 degrees.

[0050] Furthermore, in this embodiment, as the angle of upward rotation of the cover plate 24 gradually increases, the current flowing through electromagnet 20 and electromagnet 22 gradually decreases, and the relationship between the two is shown in the following formula: I = a x +b, where I is the magnitude of the current flowing through electromagnet 1 20 and electromagnet 3 22, a and b are constants, and 0 < a < 1, b > 0, x is the angle of upward rotation of cover plate 24. Preferably, the value of x is 0° ≤ x ≤ 60°. The advantage of this design is that it further reduces power consumption while ensuring that cover plate 24 can be smoothly and quickly rotated upward to open.

[0051] In this embodiment, as Figure 5 and Figure 6 As shown, an electromagnet 21 is fixedly mounted on the outer wall of the box cover 18, and an electromagnet 23 is fixedly mounted on the cover plate 24. When the cover plate 24 is rotated upwards 180 degrees and fully opened, as... Figure 5 As shown, the electromagnet 23 is located directly above the electromagnet 21 with a very small distance between them or in direct contact. With this design, when the cover plate 24 is opened, the electromagnets 23 and 21 can be energized to generate magnetic force. According to the principle of like poles repulsion, when the electromagnet 23 is about to approach the electromagnet 21, the repulsive magnetic force will cause the rotation speed of the cover plate 24 to decrease rapidly, thus making flexible contact with the electromagnet 21 and the box cover 18 without rigid collision. This effectively protects the safety of the box cover 18, the cover plate 24, the electromagnet 21, and the electromagnet 23, and also avoids the loud noise generated by the collision between the cover plate 24 and the box cover 18 when it is opened.

[0052] In this embodiment, Figure 5 After the middle cover plate 24 is rotated upward by 90 degrees, electromagnets 21 and 4 can be energized. This design reduces power consumption. Preferably, electromagnets 21 and 4 can be energized after the cover plate 24 is rotated by 150 degrees. This design can further reduce power consumption.

[0053] Furthermore, in this embodiment, as the cover plate 24 gradually rotates downwards to 180 degrees, the current flowing through electromagnets 21 and 23 first increases and then decreases, and the relationship between the two is shown in the following formula: I = a(xb). 2 +c, where I is the magnitude of the current flowing through electromagnets 21 and 23, a, b, and c are constants, and a < 0, 160° < b < 175°, c > 0, and x is the upward rotation angle of cover 24. Preferably, the value range of x is 150° ≤ x ≤ 180°. The advantage of this design is that the rotation speed of cover 24 can be reduced rapidly, while making flexible and stable contact with the cover 18. That is, cover 24 will not collide violently with the cover 18, nor will it be bounced upward and rotated back by the huge repulsive force of electromagnets 21 and 23. This ensures that cover 24 opens quickly, smoothly, and without affecting the extension of antenna body 13 and antenna arm 12 out of the chassis. Moreover, this design can further reduce power consumption.

[0054] The foregoing has detailed the working process of electromagnets 20, 21, 22, and 23 when the cover 24 is open. The following is a detailed description of the closing of the cover 24:

[0055] When it is necessary to close the open cover 24, first control electromagnets 21 and 4 to be energized to generate magnetic force. According to the principle that like poles repel each other, electromagnet 4 is pushed by electromagnet 21, causing the cover 24 to move from... Figure 5 The cover plate 24 starts to rotate rapidly upward from the position shown. The speed at which the cover plate 24 rotates upward is related to the magnitude of the current flowing through electromagnets 21 and 23. In actual use, a reasonable current value can be set according to the actual situation.

[0056] In this embodiment, Figure 5 After electromagnets 21 and 4 are energized for a period of time, they can be de-energized. With the help of inertia, the cover plate 24 continues to rotate upwards and passes through 90 degrees before descending to cover and block the protrusion hole 19, so as to reduce power consumption. Preferably, the electromagnets 21 and 4 are de-energized after the cover plate 24 rotates upwards by 60 degrees.

[0057] Furthermore, in this embodiment, as the angle of upward rotation of the cover plate 24 gradually increases, the current flowing through electromagnets 21 and 23 gradually decreases, and the relationship between the two is shown in the following formula: I = A x +B, where I is the magnitude of the current flowing through electromagnet 21 and electromagnet 4 23, A and B are constants, and 0 < A < 1, B > 0, and x is the angle of upward rotation of cover plate 24. Preferably, the value range of x is 0° ≤ x ≤ 60°. The advantage of this design is that it can further reduce power consumption while ensuring that cover plate 24 can rotate upward smoothly and quickly over 90 degrees.

[0058] In this embodiment, Figure 5 After the middle cover plate 24 rotates upward smoothly past 90 degrees, it begins to rotate downward. After rotating 180 degrees, the cover plate 24 arrives at... Figure 6 The protruding hole 19 is blocked at the position shown. Figure 5 After the middle cover plate 24 rotates upward 90 degrees, it can energize electromagnet 1 20 and electromagnet 3 22, causing them to generate magnetic force. According to the principle of like poles repulsion, when electromagnet 3 22 is about to approach electromagnet 1 20, the repulsive magnetic force will cause the rotation speed of the cover plate 24 to decrease rapidly, thus making flexible contact with electromagnet 1 20 and the box cover 18 without rigid collision. This effectively protects the safety of the box cover 18, cover plate 24, electromagnet 1 20 and electromagnet 3 22, and also avoids the loud noise generated by the collision between the closing cover plate 24 and the box cover 18.

[0059] Preferred, Figure 5 The electromagnets 20 and 22 are energized after the cover plate 24 is rotated 150 degrees. This design can further reduce power consumption.

[0060] Furthermore, in this embodiment, as the cover plate 24 gradually rotates downwards to 180 degrees, the current flowing through electromagnet 1 20 and electromagnet 3 22 first increases and then decreases, and the relationship between the two is shown in the following formula: I = A(xB) 2 +C, where I is the current flowing through electromagnet 20 and electromagnet 22, A, B, and B are constants, and A < 0, 160° < B < 175°, C > 0, and x is the upward rotation angle of cover 24. Preferably, the value of x is 150° ≤ x ≤ 180°. The advantage of this design is that the rotation speed of cover 24 can be reduced quickly, while making flexible and stable contact with the box cover 18. That is, cover 24 will not collide violently with box cover 18, nor will it be bounced upward and rotated back by the huge repulsive force of electromagnet 20 and electromagnet 22, thus ensuring that cover 24 closes quickly, smoothly and easily. Moreover, this design can further reduce power consumption.

[0061] Furthermore, to address the aforementioned problems, this invention also proposes a method for azimuth adjustment of a rotating telescopic dual-coherent antenna, comprising:

[0062] S1. Obtain the target's hull bearing λ, where λ ∈ [-180°, 180°];

[0063] S2. Adjust the antenna's azimuth and altitude according to the target's bearing.

[0064] In this embodiment, the target's bearing λ in step S1 is obtained through a reconnaissance and positioning device. For ships, the target's bearing can be determined through the ship's own reconnaissance and positioning device.

[0065] In this embodiment, step S2, adjusting the antenna's azimuth and altitude according to the target's bearing, includes:

[0066] S21. Determine the center line of symmetry for the rotating telescopic dual coherent antenna. For ships, the dual coherent antenna can be set on both sides of the same bow. In this case, the center line of symmetry is the straight line connecting the bow and the stern.

[0067] S22. Adjust the angles x1 and x2 between the transmit / receive directions of the dual-coherent antenna and the center line of symmetry according to the target's hull position, where x1 ∈ [0°, 180°] and x2 ∈ [0°, 180°].

[0068] S23. Adjust the height of the dual-coherent antenna according to the target's azimuth, for example... Figures 1-3 As shown, the height of the dual coherent antenna can be adjusted by controlling the lifting motor, thereby changing the length of the baseline. Once the baseline length is adjusted to the correct position, signal reception and coherent signal transmission can be achieved through the digital control module inside the hull, effectively eliminating the functional blind spots of the existing antenna.

[0069] Specifically, the adjustment of the angles x1 and x2 between the transmit / receive directions of the dual-coherent antenna and the center line of symmetry according to the target's azimuth, as described in S22, includes:

[0070] If λ∈[-90°, 90°], then x1=90-λ, x2=90+λ;

[0071] If λ∈[90°, 180°], then x1=270-λ, x2=λ-90;

[0072] If λ∈[-180°, -90°], then x1=-90-λ, x2=λ+270.

[0073] In this embodiment, the angles x1 and x2 between the transmit / receive directions of the dual-coherent antenna and the center line of symmetry can be adjusted by controlling a rotary motor to drive the gear disk to rotate, such as... Figures 1-3 As shown.

[0074] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A rotary telescopic dual-phase coherent antenna, characterized in that, It includes a pair of antenna units, each antenna unit having a rotating platform and a lifting device disposed on the rotating platform. The movable end of the lifting device is hinged to the antenna arm. The upper end of the antenna arm is provided with an antenna body. The lifting device is a telescopic lifting device, and the antenna arm is a telescopic antenna arm. The lifting device includes multiple screws and a sliding plate spirally sleeved on the multiple screws. And a lifting motor that drives the screw to rotate, wherein the antenna arm is hinged to the slide plate; The rotating platform and lifting device are covered by a turntable that is fixedly connected to the rotating platform. The chassis has an extension hole on its cover for the antenna arm and antenna body to enter and exit the chassis. The cover plate of the chassis can block the extension hole and is hinged to the cover of the chassis. An electromagnet is fixedly mounted on the wall of the protruding hole, and an electric magnet is fixedly mounted on the cover plate. Magnet three; when the cover plate is closed and the protrusion hole is blocked, the electromagnet three is located directly above the electromagnet one and the two are in direct contact or have a gap between them. An electromagnet is fixedly mounted on the outer wall of the box cover, and an electromagnet is fixedly mounted on the cover plate. When the cover plate is rotated 180 degrees upwards and fully opened, the fourth electromagnet is located directly above the second electromagnet and the two are in direct contact or have a gap between them. When electromagnet one and electromagnet three are energized, they generate a magnetic force in which like poles repel each other. Electromagnets two and four also generate a magnetic force that repels each other when energized.

2. The rotary telescopic dual-coherent antenna as described in claim 1, characterized in that... The rotating platform includes legs and a turntable mounted on the legs. The upper surface of the turntable is recessed inward to form a mounting hole for rotating and mounting a geared disc. The lower surface of the turntable is fixed. It is equipped with a rotary motor that is connected to the gear drive.

3. The rotary telescopic dual-phase coherent antenna as described in claim 2, characterized in that, The turntable has a mounting groove on its side that communicates with the mounting hole. A gear that is fixed to the output shaft of the rotary motor is provided in the mounting groove, and the gear meshes with the gear plate.

4. The rotary telescopic dual-phase coherent antenna as described in claim 2, characterized in that, A column is fixedly mounted on the upper surface of the gear plate, and a mounting plate is fixedly mounted on the upper end of the column. Multiple screws are vertically and rotatably inserted into the mounting plate, and a sliding plate is spirally sleeved on the multiple screws. The sliding plate is located above the mounting plate. A lifting motor that is connected to the screw drive is fixedly mounted on the mounting plate. An antenna arm is hinged to the sliding plate, and the antenna body is hinged to the upper end of the antenna arm.

5. The azimuth adjustment method for a rotary telescopic dual-phase coherent antenna according to any one of claims 1-4, characterized in that, include: Obtain the target's bearing ; Adjust the antenna's azimuth and altitude according to the target's bearing.

6. The azimuth adjustment method for a rotary telescopic dual-phase coherent antenna as described in claim 5, characterized in that, The acquisition of the target's bearing Obtained through reconnaissance and positioning devices.

7. The azimuth adjustment method for a rotary telescopic dual-phase coherent antenna as described in claim 6, characterized in that, 。 8. The azimuth adjustment method for a rotary telescopic dual-phase coherent antenna as described in claim 5, characterized in that, The adjustment of the antenna's azimuth and altitude according to the target's bearing includes: Determine the center line of symmetry for the rotating telescopic dual-coherent antenna; Adjust the angle between the transmit / receive direction of the dual-phase antenna and the center line of symmetry according to the target's azimuth. , ; Adjust the height of the dual-coherent antenna according to the target's bearing.

9. The azimuth adjustment method for a rotary telescopic dual-phase coherent antenna as described in claim 8, characterized in that, ， 。 10. The azimuth adjustment method for a rotary telescopic dual-phase coherent antenna as described in claim 8, characterized in that, The angle between the transmit / receive direction of the dual-phase antenna and the center line of symmetry is adjusted according to the target's azimuth. , include: if ,but , ; if ,but , ; if ,but , .

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