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本文介绍基于瞬态检测理论的实验性基带数字通信终端系统。在信道带宽3000Hz,传信率2400bps,输入峰值信噪比不小于-10dB条件下,实现了检测误码率小于10~(-4)。实验结果表明,瞬态检测方法具有极强的抗限带干扰和码间互扰的能力,其检测效果优于一般的统计检测方法。因此,可以实现高速数字通信,或者提高系统的抑制干扰能力。
This article introduces the experimental baseband digital communication terminal system based on transient detection theory. Under the conditions of channel bandwidth of 3000Hz, transmission rate of 2400bps and input peak signal to noise ratio of not less than -10dB, the detection error rate is less than 10 ~ (-4). The experimental results show that the transient detection method has a very strong ability to resist band-limited interference and mutual interference between codes, and the detection effect is superior to the general statistical detection methods. Therefore, high-speed digital communications can be achieved or the system’s ability to suppress interference can be improved.