【摘要】 在MATLAB仿真软件的基础上,以8PAM和8QAM为仿真案例,从仿真框图和误码率等方面对两种系统性能进行比较,弥补了硬件实验只能观察波形,不能对系统性能进行对比的缺点。实践证明,将软件与硬件实验结合使学生能够在直观观察到不同系统的波形后,可以深入地对系统性能进行对比分析,加深对知识的消化理解,极大地提高了课堂教学效果。更多还原

【Abstract】 The paper is based on a simulation software MATLAB and uses 8PAM and 8QAM as simulation cases. The paper compares the performance of the two systems from the simulation diagram and bit error rate and other aspects so that the shortcomings of the hardware experiment that it can only observe the waveform and cannot compare the performance from systems are made up. Practice has proved that the combination of the software experiment and the hardware experiment can enable students compare and analyze the performance of systems further after visually observing the waveform in different systems. It can also deepen students’ understanding of the new knowledge so that the effectiveness of classroom teaching can be improved greatly.更多还原