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Method for designing high-speed data transmission interfaces of polar-orbit meteorological satellites

A high-speed data transmission and meteorological satellite technology, applied in the design field of high-speed data transmission interface of polar-orbiting meteorological satellites

Inactive Publication Date: 2012-09-19
SHANGHAI SATELLITE ENG INST
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Problems solved by technology

[0004] The present invention aims at the technical problems existing in the above-mentioned prior art, and provides a method for designing a high-speed data transmission interface of a polar-orbiting meteorological satellite, which conveniently and reliably realizes the problem of multi-load and unbalanced code rate data transmission interface design of a polar-orbiting meteorological satellite

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  • Method for designing high-speed data transmission interfaces of polar-orbit meteorological satellites
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  • Method for designing high-speed data transmission interfaces of polar-orbit meteorological satellites

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Embodiment Construction

[0018] The embodiments of the present invention are described in detail below: the present embodiment is implemented under the premise of the technical solution of the present invention, and detailed implementation and specific operation process are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0019] Such as Figure 1 ~ Figure 4 As shown, the design method of the polar-orbiting meteorological satellite high-speed data transmission interface circuit disclosed by the present invention is based on the RS-422 interface circuit form, and the design circuit includes:

[0020] The sending end interface chip 26C31 is used for sending data and clock signals; the positive and negative terminals of the sending end interface chip 26C31 are respectively connected in series with resistors R1 to protect the sending end interface chip 26C31;

[0021] The receiving end interface chip 26C32 is used for receiving data and ...

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Abstract

The invention provides a method for designing high-speed data transmission interfaces of polar-orbit meteorological satellites, which is implemented based on an RS-422 interface circuit form, and comprises the following steps that: a sending-end interface chip 26C31 is provided, and the positive and negative signal ends of the sending-end interface chip 26C31 are respectively connected in series with a resistor R1; and a receiving-end interface chip 26C32 is provided, the positive power supply end of the receiving-end interface chip 26C32 is connected in series with a diode D, a resistor R2 is connected in series between the diode D and the positive signal end of the receiving-end interface chip 26C32, a negative power supply end of the receiving-end interface chip 26C32 is connected in series with a resistor R4, and a resistor R3 is connected in series between the positive and negative signal ends of the receiving-end interface chip 26C32. According to the design method provided by the invention, the design problem of multi-load and unbalanced code rate data transmission interfaces of polar-orbit meteorological satellites is solved conveniently and reliably.

Description

technical field [0001] The invention relates to a design method of an interface circuit, more specifically, to a design method of a high-speed data transmission interface of a polar-orbiting meteorological satellite. Background technique [0002] my country's new generation of polar-orbiting meteorological satellites is my country's second-generation polar-orbiting meteorological satellites, which are used to achieve global, all-weather, three-dimensional, quantitative remote sensing. The difficulty in the design of its digital transmission system is that it must complete information processing with multiple loads and different code rates. [0003] With the increasing demand for meteorological satellite detection services, satellites will carry more payloads capable of completing different detection tasks in the future; in addition, with the development of payload technology, payload detection will achieve higher resolution, more detection frequency band coverage, higher se...

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Application Information

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IPC IPC(8): H04B7/185
Inventor 刘波郭强王珏
Owner SHANGHAI SATELLITE ENG INST