摘要
为改善短波通信的质量,针对短波宽带信道时变衰落特性和短波高速传输的需求,设计了速率为2 400～14 400bps的传输波形。该方案结合优异纠错性能编码LDPC码进行波形设计,仿真结果表明:在AWGN信道条件下,所设计的波形方案均比美军标110C性能优越,最高能够提供3dB的增益性能。
For improving the quality of the short-wave communication,in view of the characteristics of the short-wave broadband time-varying fading channe~ and short-wave high-speed transmission waveform. The scheme is designed with the excellent performance of erorrs correction LDPC code,the simulation re- suits show that,under the condition of AWGN channel the designed waveform scheme is better than the performance of MIL-STD-188-110C,it can enhance 3 dB performance at best.
出处
《电子质量》
2013年第4期20-24,共5页
Electronics Quality
关键词
短波宽带信道
LDPC码
波形设计
short-wave wideband channel
LDPC code
waveform design
