摘要
实现远距离地空高速图像传输的关键技术是高质量的图像压缩算法。提出了一种JPEG格式的数字化图像压缩编码技术,并针对编码方式采取不同的码流控制技术,来实现以较低码速率传输高质量的图像信号。采用两点注入式锁相2CPFSK的调制方式,使振荡源的宽带调制特性和低噪声特性同时得到满足,提高了通信质量。
The key technique of long distance ground-air high speed image transmission is high-quality video compression arithmetic. This article puts forward a digital video compression encoding technique based on the standards of JPEG, and uses different video stream control techniques according to the encoding mode to realize high quality image transmission with lower code rate; at the same time, the adoption of two point PLL 2CPFSK modulation technique meets both the broad band modulation and low noise characteristics of VCO and improves the qualfiy.
出处
《无线电工程》
2006年第4期29-31,共3页
Radio Engineering
关键词
数据传输
图像编码
射频调制
data transmission
image decoding
radio frequency modulation
