摘要
本文讨论了有理调制指数下的2CPFSK的有限状态机模型,定义了信号星座并提出了一种较合理的集合分块映射方案。对于一维偶数阶调制系统,本文给出了卷积码的一个有效算法的平方欧氏距离的下界。这个下界在简单情况下是紧的,但一般情况下是否紧仍不知道。
The finite state machine model for 2CPFSK with rational modulation index is discussed. The signal constellation and a set parfition mapping rule is proposed. A lower bound which has efficient algorithm is established for one dimension even order modulation systems. It is tie in simple case but whether in general is still unknown
出处
《电子学报》
EI
CAS
CSCD
北大核心
1989年第2期47-54,共8页
Acta Electronica Sinica
