论文标题
基于SDR的伪analog无线视频传输系统的设计
A Design of SDR-based Pseudo-Analog Wireless Video Transmission System
论文作者
论文摘要
伪分析无线视频传输技术可以提高视频广播方案中传统数字系统的有效性，可靠性和鲁棒性。尽管已经为研究人员开发了IEEE 802.11系列的某些原型来进行模拟和实验，但它们通常很昂贵，并且可以提供非常有限的访问物理层。更重要的是，这些原型不能用来验证新提出的伪Analog无线视频传输算法的正确性，这是由于它们可以支持的有限调制模式而导致的。在本文中，我们介绍了基于软件无线电平台（SDR）基于伪Analog无线视频收发器的新型设计，该视频是完全透明的，允许用户学习所有实现详细信息。首先，我们证明了模拟方法还可以从速率延伸理论的角度实现最佳性能作为数字方法。然后，我们描述了设计过程中存在两个硬件实现困难，包括数据格式修改和非线性失真。接下来，我们介绍了设计的收发器的实施详细信息。最后，我们分析了设计的收发器的性能。具体而言，结果表明，设计系统可以在模拟和实验中有效工作。
The pseudo-analog wireless video transmission technology can improve the effectiveness, reliability, and robustness of the conventional digital system in video broadcast scenarios. Although some prototypes of IEEE 802.11 series have been developed for researchers to do simulations and experiments, they are usually expensive and provide very limited access to the physical layer. More importantly, these prototypes cannot be used to verify the correctness of the new proposed pseudo-analog wireless video transmission algorithms directly due to limited modulation modes they can support. In this paper, we present a novel design of software radio platform (SDR)-based pseudo-analog wireless video transceiver which is completely transparent and allows users to learn all the implementation details. Firstly, we prove that the analog method can also achieve the optimal performance as the digital method from the perspective of the rate-distortion theory. Then, we describe the two hardware implementation difficulties existed in the designing process including the data format modification and the non-linear distortion. Next, we introduce the implementation details of the designed transceiver. Finally, we analyze the performance of the designed transceiver. Specifically, the results show that the designed system can work effectively in both simulations and experiments.
