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当超短波信道受地形、电磁环境的影响,具有很大的时变性和随机性,对基带数字信号的传输造成较大误码。文中介绍的超短波数据通信技术方案,采用了信源压缩编码、FEC(前向纠错编码)技术、ARQ(自动重传请求)技术和速率自适应技术,保证了数据传输的正确性和有效性。并且通过动态自组网技术,拓宽了传输范围,加大了传输距离,增强了抗毁能力。
When the ultra-shortwave channel is affected by topography and electromagnetic environment, it has great time-varying and randomness, which causes large error to the baseband digital signal transmission. Introduced in the article of ultrashort wave data communication technology program, using the source compression code, FEC (forward error correction coding) technology, ARQ (automatic repeat request) technology and rate adaptive technology to ensure the accuracy and validity of data transmission . And through dynamic ad hoc network technology, broaden the transmission range, increase the transmission distance, and enhance the anti-destruction capability.