Information Security Design and Application System Combined Amplitude-Locked Loop Separation

• Main Authors: Peng-Liang Peng, 彭鵬亮
• Other Authors: Gwo-Jia Jong
• Format: Others
• Language: en_US
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/7nv9w8

博士 === 國立高雄應用科技大學 === 電子工程系碩士班 === 103 === In transmission channel of wireless communication system, the major factors affect the communication quality by co-channel interference (CCI), multi-channel, multipath and channel fading, etc. This dissertation discussed how to separate the original signals by using the amplitude-locked loop (ALL) algorithm in Gaussian noise channel environment. The algorithm systems can separate and suppress the noise interference in co-channel transmission and separation systems. The previous related information security algorithm are operated more and more complex calculating and training methods to achieve the optimum signal encryption and decryption processes. However, this dissertation proposed only to adjust the interference to carrier ratio (ICR) and approach unit one value. The received signals of the demodulation system are separated and decrypted the perfect signals from high noise interference transmission channel status. In this dissertation, we proposed amplitude-locked loop separation system to completely demodulate and separate signals function in transmission channel of wireless communication. The proposed system can be implemented the statistic independent characteristics and mathematics algorithm to modulate original signals and does not require via various process of multi-access to attain the perfect signal separation effect. The output signals are also estimated by signal spectrum cognitive radio (CR) operation that could be obtained original signals of noise interference in transmission channel.