Introduction to signals and noise in electrical communication 通信系统：电子通信中的信号与噪声概论：an introduction to signals and noise in electrical communication Communication systems: an introduction to signals and noise in electrical communication 并列题名：Communication systems: an introduction to signals and noise in electrical communication Introduction to Chinese and foreign classics on communication Introduction to science education and science communication Introduction to translation in China's global communication Introduction to wireless digital communication Introduction to intercultural communication Introduction to international communication