However, the encryption algorithms typically implemented are proprietary or outdated algorithms like DES. Encryption on-board EO satellites have become the norm when data are transmitted between the satellite and the ground station. Encryption is the most popular and conventional method adopted for cryptographic protection against unauthorized intrusions, on earth and in space. Usually satellite links are modelled with an AWGN channel. Cryptographic protection can be implemented to provide protection against these intrusions. It has been proven that satellites whilst in orbit are susceptible to unauthorized intrusions, meaning a satellite can be hacked. This results in a growing need for security, privacy, and reliability on-board satellites. With constant improvement, the captured data are becoming increasingly sensitive and valuable. This is achieved, using a wide range of spectral band cameras. With satellite imaging constantly evolving and improving, the captured information contains higher detail and improved resolution (smaller than 1 meter) making the data more useful. This information can be used to monitor urban development, vegetation growth, natural disasters, etc. EO satellites use smart image sensors to monitor and capture data on the earth’s surface, and in some cases, infrared is used to look beneath. Satellites have many applications, with earth observation (EO) being one of the primary applications. All developed Hamming codes are suited for FPGA implementation, for which they are tested thoroughly using simulation software and optimized. This code guarantees single-error correction and double-error detection. The most effective version was Hamming 2. In this paper, three variations of Hamming codes are tested both in Matlab and VHDL. The Hamming code was identified as a suitable EDAC scheme for the prevention of single event effects on-board a nanosatellite in LEO. This creates a growing demand for more advanced and reliable EDAC systems that are capable of protecting all memory aspects of satellites. The field of nanosatellites is constantly evolving and growing at a very fast speed.
0 kommentar(er)
