원문정보
초록
영어
Sequences with very low out-of-phase auto-correlation and cross-correlation function are widely used for synchronization in mobile communication and multimedia systems where reliable data transmissions are required. For optimum detection, synchronization sequences usually have out-of-phase correlation values that are very low or zero. However sequences with ideal correlation function are very rare. Thus, this paper presents a new algorithm to generate almost perfect complementary sequence pairs with ideal bipolar correlation. Using the auto-correlation properties of these synchronization sequences, we can obtain a correlation circuit whose output contains two peak values equal in magnitude and opposite in polarity at zero and middle shifts. This correlation circuit can be used to double-check the synchronization timing and thus reduce the synchronization search time.
목차
1. Introduction
2. Definitions
3. Almost Perfect Complementary Sequence Pairs
3.1. Correlation properties
3.2. Fundamental principles
3.3. Generation method
4. Conclusions
Acknowledgements
References