基于PAL的图像数据存储技术研究

针对弹载图像采集系统设计中存在无法准确稳定存储高速数据流,而导致图像信息记录和存储的可靠性严重降低的问题,设计了一种基于PAL制图像数据的无延时存储方法。通过采用乒乓缓存设计和流水线结构方式,解决了高速图像数据输出和串口Flash存储器的低写入速度不匹配的问题。通过实验分析验证,设计能够解决高低速存储介质中速度匹配问题,实现对高速图像数据的精确存储和记录,为后期图像恢复提供了可靠的数据。

Research on the reliability of Image Data Storage Technology Based on PAL Mode

There is a serious problem in missile-borne image acquisition system that high-speed image data stream can not be stored accurately and stably, which will result in the decrease of image information recording and storage reliability seriously. In order to solve this problem, designed an un-delay storage methods of image data based on PAL mode. This method use Ping-Pong buffer design and pipe-line structure to solve the write speed mismatch problem between high-speed image data output to low-speed of serial FLASH memory. Through experimental image analysis, the problem of speed match problem in the high and low speed storage media can be solved, accurate storage and recording of high-speed image data can be achieved. This design provided reliable data for later image restoration.