摘要
考虑到超宽带无线通信系统在高精度定位中需要极低的误码率,而实际通信中比特差错经常成串发生,为此在MB OFDM UWB通信中采用一种交织技术将连续误码分散成非连续误码,这样信道的突发错误在时间上得以扩散,使得此类误码大为降低,在接收端利用解交织器完成反交织。以上方案利用FPGA编程实现,并下载到目标板中,使用ChipScope在线测试和验证设计的正确性。
Taking account of the UWB wireless communication systems＇ requirement of low bit error rate, but in actual communication the bit error often occurs in clusters, the interleaving technique is adopted in MB-OFDM-UWB communication to transform the continuous error into discontinuous error. In this way, the burst error in the channel can be spread in the time do- main, so the type of error is greatly reduced. The inverse interlacing is achieved with a deinterleaver in the receiver. The above scheme can be realized by FPGA programming, which can be downloaded to the target FPGA board to perform online test with ChipScope and to verify the correctness of the design.
出处
《现代电子技术》
2013年第13期56-59,共4页
Modern Electronics Technique
