巡航导弹飞控数据链图像压缩编码方案及算法实现

Image Compression Coding Project and Algorithm Implementation on Cruise Missile Flight Control Datalink

针对巡航导弹飞控数据链系统中"人在回路"末制导方式图像传输特点,设计了飞控数据链图像压缩编码方案,并对基于小波变换的SPIHT算法进行改进,实现了算法的并行化。仿真结果表明,该方法压缩效率相对较高,更易于硬件的实现,在满足飞控数据链大于15倍压缩率要求的情况下,恢复图像人眼主观判图效果好,峰值信噪比PSNR达到约35dB。

Aiming at the specialty of ＂man in loop＂ end homing image transmission in the cruise missile flight control datalink system, the paper puts forward an image compression coding project on filight control datalink. At the sometime, a SPIHT alogrithm based on wavelet transformation is improved and implemented by paralleled ways. The simulating result shows that, this method has higher image compression efficiency, hardware can be manufactured easier, recovered image has better expression, and PSNR can reach to 35dB.