Modulation Domain Encrypted Transmission Based on Chaotic Sequence for Satellite Communication
Qihui He, Shuai Yuan, Lidong Zhu · 2019
In order to solve the interception problem of satellite signals, a modulation domain encrypted transmission method based on chaotic sequence is proposed. Chaotic sequences are sensitive to initial values and the results are difficult to predict. Modulation is an important process before signal transmitting, and there is no additional equipment required to encrypt the signal by the new method. The encrypted transmission method can use multilevel modulation to complete encryption with a special Vigenere cipher whose key is generated by chaotic sequences and greatly improve the security performance of the signal transmission without increasing the complexity.