1.突出了最佳接收技术 2.介绍了带通信号与系统的等效基带表示。 3.利用信号空间理论对数字传输技术进行分析,将基带传输和频带传输统 一起来进行研究和分析,突出数字传输的一般特性。 Principles of communication C Principles of Communication"is one of the principal professional courses offered for the students of communication, information and electronics majors. The primary purposes of the course consist of helping students establish the basic notions of communications, get familiar with the structure and basic technologies of the modern communication systems, and master the basic analysis methods about communication systems. The main contents of the course include: the structure of communication systems, the criteria to evaluate communication systems, analog transmission technologies, digital baseband transmission technologies, digital passband technologies, pulse-code modulation, signal-space analysis, and error-control coding1. 突出了最佳接收技术。 2. 介绍了带通信号与系统的等效基带表示。 3. 利用信号空间理论对数字传输技术进行分析，将基带传输和频带传输统 一起来进行研究和分析，突出数字传输的一般特性。 Principles of Communication C “Principles of Communication” is one of the principal professional courses offered for the students of communication, information and electronics majors. The primary purposes of the course consist of helping students establish the basic notions of communications, get familiar with the structure and basic technologies of the modern communication systems, and master the basic analysis methods about communication systems. The main contents of the course include: the structure of communication systems, the criteria to evaluate communication systems, analog transmission technologies, digital baseband transmission technologies, digital passband technologies, pulse-code modulation, signal-space analysis, and error-control coding