【摘要】 给出了一种基于信道容量分析预测DTMB多载波工作模式和单频网环境中接收信噪比门限的方法,并由实验室测试结果证实了该方法的准确性。根据这一方法,可以快速、准确地估计出单频网覆盖重叠区内的人工多径对接收信号性能的影响。更多还原

【Abstract】 In this paper,a method is proposed,which is based on the channel capacity analysis to predict the signal-to-noise ratio(SNR) threshold in single frequency networks(SFNs) for the multi-carrier modes of digital television/terrestrial multimedia broadcasting(DTMB) system.The accuracy of this method is verified via the laboratory measurement results.According to the proposed method,the influence of the artificial multipath channel on the reception quality in the overlapping coverage area can be rapidly and accurately evaluated.更多还原