传统的差分空时分组编码(DSTBC)在QPSK调制时存在着信号星座扩展。
The traditional differential space-time block code (DSTBC) suffers from the signal constellation expansion for QPSK modulation.
本文针对远程水下信道和MFSK调制的特点，提出了一种新的频率分组编码(FGC)方法。
Based on the characters of long rang underwater acoustic channels and MFSK modulation, a new Frequency Group Coding (FGC) method is proposed in this paper.
发射器一般由指令键、指令编码电路、调制电路、驱动电路、发射电路等几部分组成。
General by the command transmitter key, instruction encoding circuit, modulation circuit, driver circuit, firing circuit, such as a few parts.
基于OFDM(正交频分复用)系统，提出了一种新的空频时三维编码，将网格编码调制和差分空时分组码进行组合链接设计。
Based on OFDM system, a novel space-frequency-time code which combined trellis-coded modulation with differential space-time block code was proposed.
激光信息场应用系统主要由调制编码和接收解码两个基本部分组成。
The application system of laser information field mainly consists of two basic parts: modulation encoding and reception decoding.
激光信息场应用系统主要由调制编码和接收解码两个基本部分组成。
The application system of laser information field mainly consists of two basic parts: modulation encoding and reception decoding.
应用推荐