CN215590975U

CN215590975U - Photoelectric detection search equipment director with low RCS value

Info

Publication number: CN215590975U
Application number: CN202120791226.3U
Authority: CN
Inventors: 程文侠; 张华�; 武仓; 胡大军; 谌昊
Original assignee: Wuhan Huazhiyang Technology Co ltd
Current assignee: Wuhan Huazhiyang Technology Co ltd
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2022-01-21
Anticipated expiration: 2031-04-19

Abstract

The utility model discloses a photoelectric detection search equipment director with a low RCS value, which relates to the field of stealth equipment and comprises a pitching bag and an azimuth seat, wherein the pitching bag is connected with the azimuth seat through a pitching support, the pitching bag is of an ellipsoidal structure and comprises a monitoring surface, a plurality of monitoring windows are formed on the monitoring surface, the monitoring surface comprises a first inclined surface and a second inclined surface which are obliquely arranged, the angle between the first inclined surface and the second inclined surface is 120-145 degrees, a plurality of plane polygons are further arranged on the ellipsoidal structure, and the number of the polygon edges N is more than or equal to 8, preferably, N is more than or equal to 12; the convex part of the ellipsoid shape, the plane polygon, the first inclined plane and the second inclined plane are arranged between the adjacent polygons, so that the appearance of the pitching package is changed into a prism structure from an ellipsoid structure. The RCS value of the utility model is small, the radar detection resistance is strong, and the utility model has stealth effect.

Description

Photoelectric detection search equipment director with low RCS value

Technical Field

The utility model relates to the field of stealth equipment, in particular to a photoelectric detection search equipment pointer with a low RCS value.

Background

The photoelectric detection and search equipment director is used as a part of ship mission load, is a main means for acquiring ship optical frequency band information, and is mainly used for detecting and searching the sea area around the surface small boat and tracking and ranging a target. For better information collection, the photoelectric detection search equipment director is generally arranged at the high position of a small ship.

Ships are usually detected by high-sensitivity radars and other electronic devices in the process of executing tasks, and once detected, the ships face the attack of gunfire, so that the viability and the fighting capacity of the ships are seriously threatened.

In order to improve the survivability of ships, the ships and their accessories are usually designed as stealth structures to reduce the probability of finding the direction indicator by radar, the radar stealth technology is also called radar cross-section area (RCS) reduction technology, and the influence on the RCS value mainly includes the following four factors: physical properties of the target, the geometry of the target, the azimuth angle at which the target is illuminated by the radar waves, and the wavelength of the incident waves.

For a determined radar system and an irradiation direction, the value of RCS mainly depends on the geometric shape of a pointer and the physical characteristics of materials, and the shape stealth technology is a measure to be considered firstly in the design and research process of the radar stealth of the pointer of the photoelectric detection and search equipment due to the wide adaptive frequency range, good effect and easy maintenance.

The existing photoelectric direction indicator is generally spherical, cylindrical or U-shaped, can reach 3-5 for X-band electromagnetic waves, is poor in radar detection resistance and is not beneficial to stealth.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a photoelectric detection search equipment pointer with a low RCS value, which has a small RCS value, strong radar detection resistance and a stealth effect.

A photoelectric detection search equipment direction indicator with a low RCS value comprises a pitching bag and an azimuth seat, wherein the pitching bag is connected with the azimuth seat through a pitching support, the pitching bag is of an ellipsoidal structure and comprises a monitoring surface, a plurality of monitoring windows are formed in the monitoring surface, the monitoring surface comprises a first inclined surface and a second inclined surface which are obliquely arranged, and the angle between the first inclined surface and the second inclined surface is 120-145 degrees;

the ellipsoidal structure is also provided with a plurality of planar polygons, and the number N of the polygon sides is more than or equal to 8; an ellipsoidal convex part is arranged between every two adjacent polygons, and the planar polygon, the first inclined plane and the second inclined plane are arranged, so that the appearance of the pitching package is changed into a prism structure from an ellipsoidal structure.

Further, the plane polygon is an ellipsoid, and the ellipsoids are symmetrically and uniformly distributed on the surface of the pitching package.

Furthermore, every single move support includes interconnect's side ear and connecting axle, the side ear is used for being connected with every single move package, the side ear includes the polygon that sets up in the outside and the edge that sets up along the polygon.

Furthermore, an included angle of 120-160 degrees is formed between each edge and each polygon, each edge is connected with the pitching bag through the corresponding polyhedron side, and the polyhedron sides of each edge are connected through the round corner connecting arc.

Furthermore, the orientation seat comprises a connecting surface and a multi-surface base, the connecting surface is connected with the multi-surface base through an arc surface, and the number of the surfaces of the multi-surface base is more than or equal to 5.

Furthermore, the multiaspect base is the octahedral base, the one side of octahedral base is provided with the socket, and the one side is provided with the inflation valve.

Further, the angle between the first inclined surface and the second inclined surface is 130-140 °.

Further, the angle between the first inclined surface and the second inclined surface is 135 °.

Compared with the prior art, the utility model has the advantages that:

(1) the photoelectric detection search equipment direction indicator with the low RCS value, the combined structure of the pitching bag, the azimuth seat, the pitching support, the side ear and the like can eliminate the effect of a corner reflector, the adjacent surfaces form a larger inclination angle, the corner reflector is reduced, a right-angle dihedral angle is avoided between frames, meanwhile, all intersecting edge lines are rounded off, the edge diffraction of electromagnetic waves is reduced, the RCS value is effectively reduced, the radar detection resistance is improved, and the photoelectric detection search equipment direction indicator has a better stealth effect.

Drawings

FIG. 1 is a schematic structural diagram of a pointing device of a photodetection search apparatus with a low RCS value according to an embodiment of the present invention;

fig. 2 is a right side view of fig. 1.

In the figure: 1-pitching bag, 2-azimuth seat, 21-connection surface, 22-multi-surface base, 3-pitching support, 4-monitoring surface, 41-first inclined surface, 42-second inclined surface, 5-monitoring window, 6-elliptical surface, 7-side lug, 71-polygon, 72-edge, 73-polyhedron edge, 8-connection shaft, 9-socket and 10-inflation valve.

Detailed Description

Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Referring to fig. 1 and 2, the embodiment of the present invention provides a pointing device for a photodetection search apparatus with a low RCS value, which includes a pitch bag 1 and an azimuth base 2, wherein the pitch bag 1 and the azimuth base 2 are connected by a pitch bracket 3.

Every single move package 1 is the ellipsoidal structure, and it includes monitoring face 4, and it has a plurality of monitoring windows 5 to open on monitoring face 4, and monitoring face 4 includes first inclined plane 41 and the second inclined plane 42 that two slopes set up, and the angle between first inclined plane 41 and the second inclined plane 42 is 120 ~ 145, preferably, can be 130 ~ 140, optimally, is 135, and when the radar wave of direct front incident, the mirror surface reflection can be reduced to the slope structure of first inclined plane 41 and second inclined plane 42.

The ellipsoidal structure is further provided with a plurality of planar polygons, the number of sides of the polygons is more than or equal to 8, preferably, N is more than or equal to 12, and most preferably, the planar polygons are circular or elliptical surfaces 6, in the figure of the embodiment, the elliptical surfaces 6 are shown, and the elliptical surfaces 6 are taken as an example for detailed description.

6 symmetrical and even distribution of ellipsoid are on every single move package 1's surface, and ellipsoid 6 is planar structure, is the bulge of ellipsoid between the adjacent ellipsoid 6, the setting of plane polygon, first inclined plane 41 and second inclined plane 42 for every single move package 1's appearance is become the prism structure by the ellipsoid structure, can effectively reduce specular reflection, and then reduces every single move package 1's RCS value.

Every single move package 1 is connected with every single move support 3 through setting up the bearing in inside, every single move package 1 can rotate around every single move support 3, every single move support 3 includes side ear 7, side ear 7 includes one sets up the polygon 71 in the outside and the edge 72 that sets up along polygon 71, be the contained angle of 120 ~ 160 between edge 72 and the polygon 71, be the contained angle of 100 ~ 140 between the adjacent edge 72, edge 72 is connected with every single move support, and connect the arc through the fillet between 72 polyhedron limit 73 and connect, reduced the diffraction of electromagnetic wave edge.

The orientation seat 2 comprises a connecting surface 21 and a multi-surface base 22, the connecting surface 21 is connected with the multi-surface base 22 through an arc surface, the number of the surfaces of the multi-surface base 22 is not less than 5, in the embodiment, the orientation seat is an octahedral base, one surface of the octahedral base is provided with a socket 9, the other surface of the octahedral base is provided with an inflation valve 10, and the surface and the bottom surface of the socket 9 are also obliquely arranged.

According to the utility model, the structure combination of the pitching package 1, the azimuth seat 2, the pitching support 3 and the side lug 7 can eliminate the effect of a corner reflector, and the adjacent surfaces form a larger inclination angle, so that the corner reflector is reduced, a right-angle dihedral angle between frames is avoided, and the edge diffraction of electromagnetic waves is reduced.

The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone with the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, are within the protection scope.

Claims

1. A photoelectric detection search equipment direction finder with low RCS value comprises a pitching bag (1) and an orientation seat (2), wherein the pitching bag (1) and the orientation seat (2) are connected through a pitching bracket (3), and the photoelectric detection search equipment direction finder is characterized in that:

the pitching package (1) is of an ellipsoidal structure and comprises a monitoring surface (4), a plurality of monitoring windows (5) are formed in the monitoring surface (4), the monitoring surface (4) comprises a first inclined surface (41) and a second inclined surface (42) which are obliquely arranged, and the angle between the first inclined surface (41) and the second inclined surface (42) is 120-145 degrees;

the ellipsoidal structure is also provided with a plurality of planar polygons, and the number N of the polygon sides is more than or equal to 8; an ellipsoidal convex part is arranged between every two adjacent polygons, and the planar polygon, the first inclined surface (41) and the second inclined surface (42) are arranged, so that the appearance of the pitching package (1) is changed from an ellipsoidal structure to a prism structure.

2. The photodetection search device pointer with low RCS value according to claim 1, wherein: the plane polygon is an elliptical surface (6), and the elliptical surface (6) is symmetrically and uniformly distributed on the surface of the pitching package (1).

3. The photodetection search device pointer with low RCS value according to claim 1, wherein: every single move support (3) including interconnect's side ear (7) and connecting axle (8), side ear (7) are used for being connected with every single move package (1), side ear (7) include one set up polygon (71) in the outside and edge (72) that set up along polygon (71).

4. The photodetection search device pointer with low RCS value according to claim 3, wherein: an included angle of 120-160 degrees is formed between the edge (72) and the polygon (71), the edge (72) is connected with the pitching bag (1) through the corresponding polyhedron edge (73), and the polyhedron edges (73) of the edge (72) are connected through the fillet connecting arc.

5. The photodetection search device pointer with low RCS value according to claim 1, wherein: the azimuth base (2) comprises a connecting surface (21) and a multi-surface base (22), the connecting surface (21) is connected with the multi-surface base (22) through an arc surface, and the number of the surfaces of the multi-surface base (22) is more than or equal to 5.

6. The photodetection search device pointer with low RCS value according to claim 5, wherein: the multi-surface base (22) is an octahedral base, one surface of the octahedral base is provided with a socket (9), and the other surface of the octahedral base is provided with an inflation valve (10).

7. The photodetection search device pointer with low RCS value according to claim 1, wherein: the angle between the first inclined surface (41) and the second inclined surface (42) is 130-140 degrees.

8. The photodetection search device pointer with low RCS value according to claim 1, wherein: the angle between the first inclined surface (41) and the second inclined surface (42) is 135 degrees.