论文部分内容阅读
本文阐述采用鉴频器检测通用化平滑调频(GTFM)信号的一种非相干接收机。在鉴频器输出端,采用了一个解码器从解调信号判决所接收的二进制数据。这种解码器可采用简单的逐位比特(bit-by-bit)检测器的形式,或采用不太复杂的最大似然序列检测器(MLSE)的形式。借助计算机模拟,研究了在有高斯噪声时几种GTFM信号的误码率。所有这些信号都具有与TFM一样好的频谱性能。证明了所推荐的鉴频器检测方案可以在发射机GTFM信号产生时,用适当选择参考数的方法来达到最佳值。
This article describes a non-coherent receiver that uses a frequency detector to detect a generalized smoothing frequency modulated (GTFM) signal. At the output of the discriminator, a decoder is used to determine the received binary data from the demodulated signal. Such a decoder may take the form of a simple bit-by-bit detector or a less complex Maximum Likelihood Sequence Detector (MLSE). By means of computer simulation, the bit error rates of several GTFM signals under Gaussian noise are studied. All of these signals have as good spectrum performance as TFM. It proves that the proposed frequency detector detection scheme can achieve the best value with proper selection of reference number when the transmitter GTFM signal is generated.