ABSTRACT
Contents 18.1 Introduction ................................................................................................................... 268 18.2 UAV Video System Design ............................................................................................. 268 18.3 Emulation and Measurement Design ............................................................................. 272
18.3.1 Emulation Platform 1: Use ZigBee System as the Antenna Testing Platform ...... 272 18.3.2 Emulation 2: RC Car-Based Antenna Test .......................................................... 275
18.4 Video Analysis under Different Antennas in the UAV Systems ...................................... 276 18.4.1 Peak Signal-to-Noise Ratio ................................................................................. 277 18.4.2 Modified Sum of Absolute Differences ............................................................... 278 18.4.3 Delta ................................................................................................................... 278 18.4.4 Structural Similarity Index ................................................................................. 279 18.4.5 Video Quality Metric ......................................................................................... 279
18.5 Field Test Setup and Measurement Results Analysis ...................................................... 280 18.5.1 ZigBee and WiFi Digital Wireless Test ............................................................... 280 18.5.2 RC Car Video Test ............................................................................................. 282 18.5.3 UAV Video Test .................................................................................................. 285
18.6 Conclusions .................................................................................................................... 288 Acknowledgment .................................................................................................................... 289 References ............................................................................................................................... 289
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18.1 Introduction The unmanned aerial vehicle (UAV) is widely used in military and civilian applications. It can be used for field surveillance through the cameras deployed on the UAV body. However, when the UAVs are deployed in complicated radio signal conditions, it is a challenging issue to maintain the communication performance such as the throughput and time delays. Especially for the video transmission on UAVs, the task of maintaining high-quality video transmission is critical.
