After the unequal error protection of multilevel coded modulation is discussed in detail, a non-uniform signal constellation applied to 8ask modulation is designed.
在详细分析了多级编码调制的不等错误保护原理的基础上，设计了一种针对8ask调制的非均匀信号星座。
2
The multilevel cascade chaotic communication can be realized by regenerating the depleted signal in relaying.
通过再生传输中衰变的信号，实现了多级联混沌通信。
3
This article analyses influence on inside resistance in the signal source on circuit in 3 ways: monopole amplifying circuit, multilevel amplifier circuit, and negative feedback amplifier.