Transmitting Image Based On Wireless Radio Frequency

With the maturity of wireless communication technology, radio frequency(RF) is commonly put to use for wireless communication .It is an efficient solution that transmitting wireless data in short distance by system of chip, which is also a good selection to design low cost system of wireless communication.There have a lot of video code standards for video processing by now. By comparison we think that H.264 standard, which improves video code efficiency and applies in much new domain, especially for wireless communication, largely progresses video code standards, so H.264 standard is applied in the system designing. Despite the complexity of H.264 is 4 times more than other standards in existence, the application of H.264 has been put to use in the appropriate digital signal processor, which is valuable for video signals processing.Whether wireless system of chip and digital signal processor or H.264 standard are becoming more and more mature presently, so processing video and image based on wireless radio frequency has come true. It is this article's purpose to develop the system of video and imagine adapt to short distance wireless communication.First, discusses the technique of wireless RF and emphasizes the trait of wireless system of chip, and gives how to choose the chip. Then expatiating the concept and characteristic of H.264, and introducing the code structure and arithmetic optimizing. By comparing DSP product, Nexperia PNX1500 chip is chosen. Next, the article gives the design of imagine processing system based on wireless RF transmitting, and designs the hardware project and offers the solution of code optimizing. The hardware designing is delaminated from the top down, and emphasizes the explanation of wireless module and video module. In the end, the article summarizes the work and analyzes its significance.