High-capacity high-orbit communication satellite layout method based on exchange processing load

Abstract

A high-capacity high-orbit communication satellite layout method based on exchange processing load belongs to the technical field of spacecraft design, and comprises the following steps: dividing equipment needing layout in a communication cabin into repeater equipment, processing and exchange function equipment and platform equipment; the processing and switching function equipment comprises self-adaptive processing equipment and switching equipment; the method comprises the following steps: S1, arranging repeater equipment on a communication cabin south-north plate close to a ground area and the ground area; s2, platform equipment is arranged on a south plate or a north plate of the communication cabin and is close to an east plate side or a west plate side of the communication cabin at the same time; s3, the adaptive processing equipment is arranged on the cabin plate which is the same as the transponder equipment of the corresponding wave beam; and S4, the switching equipment is arranged at a position which is the same distance away from the communication cabin south plate and the communication cabin north plate. According to the method, the layout problem under the conditions of complex communication satellite load link and high power consumption and heat consumption is solved.

Description

Technical Field

[0001] The invention relates to a large-capacity high-orbit communication satellite layout method based on exchange processing loads, and belongs to the technical field of spacecraft design. Background Art

[0002] With the continuous progress of carriers, satellite platforms, Internet constellations and information technology, as well as the growing demand for wide-area wireless communications, satellite communication payloads are gradually developing towards large-scale, multi-functional, complex processing and switching. At this stage, communication satellites are not simply transparent forwarding like traditional satellites, but integrate on-board switching, on-board routing and other technologies, just like a router set up in space. These technologies greatly enhance the flexibility of satellite network applications and can adapt to emerging new business needs. However, at the same time, it also makes the construction of communication satellite payload links more complicated, and the power consumption and heat consumption increase, which brings great difficulties to satellite design and implementation. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and solve the layout problem of communication satellite payload links that are complex and have high power consumption and heat consumption.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] A large-capacity high-orbit communication satellite layout method based on exchange processing payloads, comprising:

[0006] The equipment that needs to be laid out in the communication cabin is divided into three categories: repeater equipment, processing and switching functional equipment, and platform equipment; the processing and switching functional equipment includes adaptive processing equipment and switching equipment;

[0007] S1. Transponder equipment is arranged on the north and south plates of the communication cabin and the ground area close to the ground area;

[0008] S2. The platform equipment is arranged on the south plate or north plate of the communication cabin, and is close to the east plate or west plate of the communication cabin;

[0009] S3, the adaptive processing equipment is arranged on the same board as the transponder equipment of its corresponding beam;

[0010] S4. The switching equipment is arranged at a position equidistant from the south plate and the north plate of the communication cabin.

[0011] A communication cabin of a large-capacity high-orbit communication satellite based on an exchange processing payload adopts the above-mentioned layout method for equipment layout.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] (1) The present invention decomposes the layout of a large-capacity high-orbit communication satellite with exchange and processing payloads into the layout of a transponder part, a platform part, and a processing and exchange part, realizes a certain degree of partition layout from a design perspective, and simplifies the complex communication cabin layout from a logical level.

[0014] (2) The present invention satisfies the requirements of the repeater link, the functional performance requirements of the whole satellite processing and switching, the heat dissipation of a single machine, and the balance of the quality characteristics of the whole satellite through reasonable layout design. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the communication payload principle with processing and switching functions.

[0016] Figure 2 This is a schematic diagram of the typical configuration of a high-orbit communication satellite.

[0017] Figure 3 This is a schematic diagram of the typical configuration of a communication cabin for a large-capacity high-orbit communication satellite.

[0018] Figure 4 Schematic diagram of the typical layout of a high-orbit communication satellite to accommodate processing and switching functions. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0020] In terms of working principle, compared with traditional communication payloads, communication satellite payloads with processing and switching functions are equipped with equipment specifically for communication signal processing and switching, such as adaptive processing equipment and switching equipment. Among them, the adaptive processing equipment pre-processes the uplink signal of the transponder channel, and then sends the signal to the switching equipment for unified processing and routing switching. The switching equipment then distributes the signal to the corresponding adaptive equipment, and the adaptive equipment performs post-processing on the signal before sending it to the downlink channel of the transponder, such as Figure 1 shown.

[0021] Multiple adaptive processing devices are configured according to the number of satellite communication beams, connected to the repeater system, and interact with the switching equipment for signal exchange; the switching equipment performs comprehensive processing on the communication signals and needs to be connected to all the adaptive devices.

[0022] The configuration of the high-orbit communication satellite body is generally divided into a communication module, a propulsion module and a service module. Figure 2 As shown, the communication cabin is subdivided into the ground, the north and south sides of the communication cabin, and the corresponding north and south partitions, such as Figure 3The payload antenna is generally located on the outer surface of the communication cabin facing the ground and the east and west sides, and the rest of the payload equipment is generally located inside the communication cabin, with equipment with high heat consumption located on the north and south sides of the communication cabin.

[0023] Compared with the traditional simple transparent forwarding communication payload, the communication satellite with processing and switching functions needs to consider the processing and switching function equipment during layout. The processing and switching function equipment is located in the middle of the repeater link, so it does not affect the traditional extravehicular payload layout, but mainly affects the layout of the equipment inside the communication cabin.

[0024] A method for the layout of a large-capacity high-orbit communication satellite based on exchange processing payloads logically divides the equipment that needs to be laid out in the communication cabin into three categories:

[0025] Repeater equipment: divided into uplink channel (including repeater receiving channel) and downlink channel (including repeater transmitting channel);

[0026] Processing and switching function equipment: several adaptive processing devices, 1-2 switching devices;

[0027] Platform equipment: such as power distribution equipment, data acquisition equipment, command sending equipment and data processing equipment, etc.

[0028] Based on the above classification, layout methods include:

[0029] S1. First, consider the layout design of the transponder equipment to meet the requirements of the input and output links. Because the payload antennas are mainly distributed on the ground and east and west outer surfaces of the satellite, and the feed sources of the east and west antennas are usually located near the ground area, the north and south boards of the communication cabin and the floor area near the ground area are given priority when laying out the transponder equipment to ensure that the input and output links are short.

[0030] S2. Platform equipment is generally arranged close to the platform area, so that the low-frequency cable connected to the platform can be kept as short as possible. When laying out, the requirements such as the quality characteristics of the entire satellite are comprehensively considered, and the equipment is arranged on the south board or north board of the communication cabin, and at the same time close to the east board or west board of the communication cabin;

[0031] S3. For the adaptive processing equipment, it is arranged on the same side of the cabin board as the transponder link equipment of its corresponding beam to ensure that the data transmission path is short and will not cause data transmission errors due to the long path. At the same time, it also ensures that the cable network of the entire satellite system is light in weight.

[0032] S4. For the switching equipment, since it needs to be connected to the adaptive equipment of all cabin boards, it is generally arranged at a position with the same distance from the south and north boards of the communication cabin, such as the horizontal board facing the ground or parallel to the ground. Since the power consumption and heat consumption of such equipment are relatively large, and there is no good heat dissipation condition for the floor or horizontal board, it is necessary to transfer its heat to the north and south boards of the communication cabin through L-shaped heat pipes.

[0033] Definition of the satellite mechanical coordinate system: The coordinate origin O is located in the mechanical separation plane between the lower end frame of the satellite platform and the launch vehicle, and coincides with the geometric center of the lower end frame of the satellite; the OX axis passes through the coordinate origin O and is parallel to the theoretical normal direction of the satellite east plate, and its positive direction is consistent with the outer normal direction of the east plate; the OZ axis passes through the coordinate origin O and is parallel to the axis of the satellite body, and its positive direction points to the ground; the OY axis passes through the origin O and forms a right-handed rectangular coordinate system with the OX axis and the OZ axis, and its positive direction is consistent with the outer normal direction of the satellite south plate.

[0034] The contents not described in detail in the specification of the present invention belong to the common knowledge of those skilled in the art.

[0035] Although the present invention has been disclosed as above in the form of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. A method for deploying large-capacity high-orbit communication satellites based on exchange processing load, characterized in that: include: The equipment that needs to be laid out in the communication cabin is divided into three categories: repeater equipment, processing and switching function equipment, and platform equipment; The processing and switching function equipment includes adaptive processing equipment and switching equipment; S1. Transponder equipment is arranged on the north and south plates of the communication cabin and the ground area close to the ground area; S2. The platform equipment is arranged on the south plate or north plate of the communication cabin, and is close to the east plate or west plate of the communication cabin; S3, the adaptive processing equipment is arranged on the same board as the transponder equipment of its corresponding beam; S4. The switching equipment is arranged at a position equidistant from the south plate and the north plate of the communication cabin.

2. The large-capacity high-orbit communication satellite layout method according to claim 1 is characterized in that: The switching equipment is laid out on a horizontal plate that is on or parallel to the ground.

3. The large-capacity high-orbit communication satellite layout method according to claim 2 is characterized in that: The switching equipment transfers its heat to the north and south plates of the communication cabin through L-shaped heat pipes.

4. The large-capacity high-orbit communication satellite layout method according to claim 1 is characterized in that: Multiple adaptive processing devices are configured according to the number of satellite communication beams, connected to the repeater system, and interact with the switching equipment for signal exchange; the switching equipment performs comprehensive processing on the communication signals and needs to be connected to all the adaptive devices.

5. The large-capacity high-orbit communication satellite layout method according to claim 1 is characterized in that: The adaptive processing device pre-processes the uplink signal of the repeater channel, and then sends the signal to the switching device for unified processing and routing switching. The switching device then distributes the signal to the corresponding adaptive device, and the adaptive device post-processes the signal before sending it to the downlink channel of the repeater.

6. The large-capacity high-orbit communication satellite layout method according to claim 1 is characterized in that: The payload antennas are located on the ground and east and west outer surfaces of the communications cabin.

7. A communication cabin for a high-capacity high-orbit communication satellite based on exchange processing payload, characterized in that: The layout method described in claim 1 is used to arrange the equipment.

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