Satellite-borne radar switching interface module

An interface module, spaceborne radar technology, applied in instruments, electrical digital data processing, radio wave measurement systems, etc., to achieve the effect of reducing FPGA logic

Pending Publication Date: 2021-09-28
CHINA ELECTRONICS TECH GRP CORP NO 14 RES INST
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems existing in the prior art, the present invention proposes a spaceborne radar exchange interface module, which is based on the VPX bus and adopts technologies such as triple-mode redundancy, dynamic refresh, and software annotation to solve the problem of space environment adaption of the exchange interface module, For problems such as software online update, dual redundant cold backup is adopted to improve the reliability of high-speed data transmission and exchange, and lay the foundation for the development of on-orbit real-time processing system for spaceborne radar. In order to achieve the above purpose, the present invention adopts the following technical solutions

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Satellite-borne radar switching interface module
  • Satellite-borne radar switching interface module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0015] The exchange interface module is mainly composed of two large-scale FPGAs and corresponding interface circuits: one of them is a commercial device FPGA device V7, which is mainly used for high-speed data exchange and high-speed data transmission; the other FPGA is a radiation-resistant device referred to as V2, like figure 1 As shown, it is mainly used to read FLASH data to configure V7, refresh V7, monitor the status of V7, read and send BIT information of V7.

[0016] In order to reduce the impact of single event flipping in the space environment, a triple-mode redundant design is adopted for data reading and logic configuration, and dynamic refresh is used for memory configuration.

[0017] In order to reduce the impact of FLASH flipping in the space environment, when reading FLASH data, a two-out-of-three redundancy design is ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a satellite-borne radar switching interface module, which is characterized in that an external power supply is connected with a 5V power supply interface chip through a VPX bus to supply power to the module, an anti-radiation device reads data self-configuration of a PROM, reads more than two parts of data of FLASH to configure an FPGA device, refreshes configuration of the FPGA device at regular time, monitors the state of the FPGA device and reads BIT information of the FPGA device. According to the FPGA device, the FPGA device is connected with a VPX bus through a CAN interface chip or an RS485 interface chip, external data is transmitted to the FPGA device through the VPX bus to be analyzed and recognized and transmitted to a next processing node, high-speed transmission of the data is achieved, and the triple modular redundancy and dynamic refreshing technology is adopted to reinforce radiation resistance, adapt to the space environment and reduce the influence of FPGA logic and FLASH overturning; and a data transmission link and a control instruction are adopted, software uploading is achieved, and ground software updates satellite-borne radar switching interface module software online.

Description

technical field [0001] The invention belongs to the technical field of radar signal processing, and in particular relates to a bus interface technology. Background technique [0002] In order to adapt to the complex space environment and meet the needs of on-orbit real-time processing, the spaceborne radar real-time processing system needs to have the characteristics of high reliability, high performance, and low power consumption, especially the hub of data transmission and exchange - the exchange interface module. Normal operation is an important guarantee for the normal operation of the spaceborne radar real-time processing system. [0003] At present, the switch interface module is mainly designed for airborne and ground radars. Its working environment is good, and it is easy to repair and replace if it fails. [0004] In the prior art, there is no exchange interface module designed for the on-orbit operation of the spaceborne radar real-time processing system to adapt ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/02G06F8/654G06F13/38
CPCG01S7/02G06F8/654G06F13/385
Inventor 王洪剑郑志彬雷志勇魏耀吴刚曹靖林幼权
Owner CHINA ELECTRONICS TECH GRP CORP NO 14 RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap