CN210143000U

CN210143000U - Satellite beacon demodulation single board for satellite communication equipment

Info

Publication number: CN210143000U
Application number: CN201921599942.0U
Authority: CN
Inventors: 杨昌燚
Original assignee: Sichuan Andi Technology Industrial Co Ltd
Current assignee: Sichuan Andi Technology Industrial Co Ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-03-13
Anticipated expiration: 2029-09-25

Abstract

A satellite beacon demodulation single board for satellite communication equipment comprises a circuit board: the SMA connector is used for being connected with the LNB to introduce an L-band signal; the down converter is used for converting a beacon signal in the L-band signal into a baseband analog signal; the ADC chip is used for converting the baseband analog signal into a baseband digital signal; the programmable logic device is used for demodulating the baseband digital signal; and the connector is used for sending the demodulated signal to the satellite communication equipment so as to enable the satellite communication equipment to realize satellite-to-satellite work. The L wave band signal is introduced on a single board through the SMA connector, and the beacon signal is demodulated by the programmable logic device after being subjected to down-conversion and ADC processing, so that the volume required by the beacon demodulation function is greatly reduced, the cost is saved, and the device can be directly integrated in portable satellite communication equipment.

Description

Satellite beacon demodulation single board for satellite communication equipment

Technical Field

The utility model relates to a satellite communication especially is relevant with a satellite beacon demodulation veneer structure for satellite communication equipment.

Background

With the development of satellite communication technology, demands for integration and miniaturization of communication systems and communication devices have been increasing. The existing satellite beacon demodulation mode can be completed by adopting an independent beacon machine with a huge volume, and the mode is not beneficial to application and popularization, and the design with the large volume is not beneficial to carrying and cost saving. In order to be suitable for satellite communication applications in more scenes, equipment needs to be optimized from multiple aspects such as structural design, circuit design and logic design, function integration and volume reduction are realized, and cost is saved and assembly and processing are facilitated. The method and the device are provided for realizing demodulation of the satellite beacon on a single board so that satellite equipment can complete satellite work.

SUMMERY OF THE UTILITY MODEL

The utility model discloses mainly be to above-mentioned relevant prior art not enough and defect, provide a satellite beacon demodulation veneer for satellite communication equipment, introduce L wave band signal and to wherein the beacon signal carry on down the conversion, ADC handles the back and accomplish the demodulation by programmable logic device through the SMA connector on a veneer, greatly reduced the volume that beacon demodulation function needs, saved the cost, still integratable in satellite equipment.

In order to achieve the above purpose, the utility model adopts the following technology:

a satellite beacon demodulation single board for satellite communication equipment is characterized in that the satellite beacon demodulation single board is integrated in the satellite communication equipment and comprises a circuit board:

the SMA connector is used for being connected with the LNB to introduce an L-band signal;

the down converter is used for converting a beacon signal in the L-band signal into a baseband analog signal;

the ADC chip is used for converting the baseband analog signal into a baseband digital signal;

the programmable logic device is used for demodulating the baseband digital signal;

and the connector is used for sending the demodulated signal to the satellite communication equipment so as to enable the satellite communication equipment to realize satellite-to-satellite work.

The SMA connector is connected with the LNB and the down-conversion chip, the ADC chip is connected with the down-conversion chip and the programmable logic device, and the programmable logic device is connected with the connector.

The programmable logic device is an FPGA module. The FPGA module is connected with the connector through the SPIA and GPIO communication interfaces. The ADC chip is connected with the FPGA module through the SPIB communication interface.

And the circuit board is provided with a POWER supply, and the POWER supply is connected with the connector and used for introducing a POWER supply to supply POWER to the satellite beacon demodulation single board.

And the circuit board is provided with a CLOCK which is connected with the FPGA module and the down-conversion chip and used for respectively providing reference CLOCKs for the FPGA module and the down-conversion chip.

The circuit board is provided with an LNB power supply driving module which is used for leading an LNB driving power supply into the LNB, the LNB power supply driving module is connected with the SMA connector, and the LNB power supply driving module is connected with the connector through the IIC communication interface.

The utility model has the advantages that:

1. the L wave band signal is introduced on a single board through the SMA connector, and the beacon signal is demodulated by the programmable logic device after being subjected to down-conversion and ADC processing, so that the volume required by the beacon demodulation function is greatly reduced.

2. The single-board satellite communication equipment can be directly integrated in the satellite equipment, is beneficial to the development of miniaturization and integration of the satellite equipment, saves cost, is convenient to assemble, is particularly suitable for portable small-size satellite communication equipment, and can conveniently complete satellite operation in cooperation with the satellite communication equipment through the single board when an individual soldier carries the equipment in the field.

Drawings

Fig. 1 is a schematic structural diagram of a satellite beacon demodulation board according to an embodiment of the present application.

Detailed Description

The present invention will be explained in detail with reference to the embodiments shown in the drawings.

Fig. 1 is a schematic structural diagram of a satellite beacon demodulation board according to a first embodiment of the present application.

The satellite beacon demodulation single board provided by the embodiment can be directly integrated in satellite communication equipment. The structure is including locating the circuit board: SMA connector, down converter, ADC chip, FPGA module, connector.

The SMA connector is connected with the LNB and the down-conversion chip, the ADC chip is connected with the down-conversion chip and the programmable logic device, and the FPGA module is connected with the connector.

As a specific implementation manner of this example, the FPGA module is connected to the connector through SPIA and GPIO communication interfaces. Specifically, in this example, there are 4 GPIO communication interfaces. The ADC chip is connected with the FPGA module through the SPIB communication interface.

Specifically, each device/chip functions as:

the SMA connector is used for being connected with the LNB to introduce an L-band signal; the down converter is used for converting a beacon signal in the L-band signal into a baseband analog signal; the ADC chip is used for converting the baseband analog signal into a baseband digital signal; the FPGA module is used for demodulating the baseband digital signal; and the connector is used as an interface component of the external (satellite communication equipment) and is used for sending the demodulated signal to the satellite communication equipment so as to enable the satellite communication equipment to realize satellite-to-satellite work.

In this example, a POWER supply is arranged on the circuit board, and the POWER supply is connected with the connector and used for introducing a 12V POWER supply to supply POWER to the satellite beacon demodulation single board.

In this example, a CLOCK is provided on the circuit board, and the CLOCK is connected to the FPGA module and the down-conversion chip and is used for providing a reference CLOCK of 25M to the FPGA module and the down-conversion chip, respectively.

As a preferred embodiment of this example, an LNB power supply driving module is further integrated on the circuit board, and is configured to introduce an LNB driving power supply to the LNB, where the LNB power supply driving module is connected to the SMA connector, and the LNB power supply driving module is connected to the connector through the IIC communication interface. Specifically, the LNB power supply driver module may be built by using LNBH 26.

The working mode is as follows:

the single board is integrated in the satellite communication equipment and is connected with an ACU bottom board of the satellite communication equipment. The SMA connector introduces an introduced L-band signal from the LNB and sends the L-band signal to the down-conversion chip; the down converter converts a beacon signal in the L-band signal into a baseband analog signal and sends the baseband analog signal to the ADC chip; the ADC chip converts the baseband analog signal into a baseband digital signal and sends the baseband digital signal to the FPGA module; the FPGA module demodulates the baseband digital signals and sends the demodulated signals to the satellite communication equipment through the connector, so that the satellite communication equipment realizes satellite-to-satellite work.

The above is merely an example provided for explaining the technical means of the present application, but the present application is not limited to the above example.

Claims

1. A satellite beacon demodulation single board for satellite communication equipment is characterized by comprising a circuit board:

2. The satellite beacon demodulation board for satellite communication device according to claim 1, wherein said satellite beacon demodulation board is integrated into a satellite communication device.

3. The satellite beacon demodulation board for the satellite communication device according to claim 1, wherein the SMA connector is connected to the LNB and the down-conversion chip, the ADC chip is connected to the down-conversion chip and the programmable logic device, and the programmable logic device is connected to the connector.

4. The satellite beacon demodulation board for satellite communication equipment according to claim 3, wherein the programmable logic device is an FPGA module.

5. The satellite beacon demodulation board for satellite communication equipment according to claim 4, wherein the FPGA module is connected to the connector through SPIA and GPIO communication interfaces.

6. The satellite beacon demodulation board for the satellite communication device according to claim 4, wherein the ADC chip is connected to the FPGA module through an SPIB communication interface.

7. The satellite beacon demodulation board for satellite communication equipment according to claim 3, wherein the circuit board is provided with a POWER supply, and the POWER supply is connected to the connector and used for introducing POWER to supply POWER to the satellite beacon demodulation board.

8. The satellite beacon demodulation board for the satellite communication device according to claim 4, wherein a CLOCK is disposed on the circuit board, and the CLOCK is connected to the FPGA module and the down-conversion chip and is configured to provide reference CLOCKs to the FPGA module and the down-conversion chip, respectively.

9. The satellite beacon demodulation board for the satellite communication device according to claim 3, wherein the circuit board is provided with an LNB power supply driving module, which is used to introduce an LNB driving power supply to the LNB, the LNB power supply driving module is connected to the SMA connector, and the LNB power supply driving module is connected to the connector through the IIC communication interface.