Design and Characteristics Evaluation of the Transmission Line Simulator having a Certain Random and Burst Average Bit Error Rates

Abstract

In binary digital transmission, a bit error rate (BER) is the most important evaluation standard. But actual transmission line does not give any bit error rate, because a bit error occurs by existence of analog noise power. If these noisy communication channel which shows a certain random and burst bit error rate, called a transmission line simulator, can be constructed artificially, it is very useful for evaluation of data transmission quality. This paper proposes the theoretical design method of transmission line simulator using a combination of the maximum length sequence generator and binary counter circuits or two maximum length sequence generators. The feature of this proposed systems is that an average bit error rate is controlled by changing the length of shift register. The fundamental concept and its characteristics are described.