摘要
本系统能够通过脉冲幅度调制与解调技术,实现语音信号在38k Hz上的红外无线高质量传输。语音信号在系统中经过PAM调制后加载在红外发射管上发射,能在2米或更远的距离外接收到,并经过放大、滤波和功放后,还原出清晰、低噪的语音信号。系统功能完善,达到了所有指标要求。
The system can realize the high quality infrared vocal transmission in the 38kHz carrier frequency with the technology of Pulse Amplitude Modulation. After the PAM,the signal can be transmitted by the infrared LED,and can be received in the distance of 2 meter or longer. Finally,and after amplification filter and amplifier thereduction of language signal clear,low noise.The system has perfect functions,meet all the requirements of index.
出处
《电脑知识与技术（过刊）》
2016年第10X期216-218,共3页
Computer Knowledge and Technology
