SAR radar data encryption device based on SOC chip and method thereof

Abstract

The invention discloses an SAR radar data encryption device based on an SOC chip and a method thereof. The device comprises an SOC chip with the integration of an FPGA IP and an MCU IP, a program FLASH memory connected to the FPGA IP, a configuration FLASH memory connected to the MCU IP, an RS-485 receiver connected to the FPGA IP, a first RS-485 interface connected to the RS-485 receiver, an RS-485 transmitter connected to the FPGA IP, a second RS-485 interface connected to the RS-485 transmitter, an RS-232 transceiver connected to the MCU IP, and an RS-232 interface connected to the RS-232 transceiver. According to the device and the method, the SOC chip with the integration of the FPGA IP and the MCU IP is employed, thus the work of data encryption, key management and interface communication is completed by using a single chip, the real-time encryption of the imaging data of an SAR radar system is realized, the system complexity is simplified, and the time and cost of system development are effectively reduced.

Description

technical field [0001] The invention relates to the technical field of radar communication, in particular to a SAR radar data encryption device and method based on an SOC chip. Background technique [0002] Synthetic Aperture Radar (SAR) is a high-resolution two-dimensional imaging radar that can collect surface information around the clock and use signal processing operations to achieve high-resolution imaging. The working method of SAR is that the radar is loaded on the aircraft or satellite, and the static target on the ground is imaged, and the resolution of the azimuth is improved by using the principle of synthetic aperture. Synthetic aperture radar plays an important role in natural disaster prediction, military intelligence reconnaissance, topographic surveying and mapping, resource inspection and so on. [0003] The development trend of SAR in the world is mainly as follows: multi-target detection display, positioning, motion and direction estimation; Synthetic ap...

AI Technical Summary

Problems solved by technology

[0005] Due to the extreme importance of the SAR system in military applications, data encryption has become particularly important. At this stage, due to encryption, there is a high demand for algorithm complexity and real-time performance, and the receiving host in the SAR system is in the radar signal. The process of receiving, imaging and compression takes up a lot of hardware resources, so that most of the final imaging data is not encrypted and stored directly in the storage host, lacking data encryption protection

[0006] And some existing solutions are to use two processors to complete all the work, one of which completes the data encryption operation, and the other completes other tasks such as key management and interface communication, which increases hardware complexity and development time, and higher cost

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