现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2013年
13期
56-59
,共4页
许涛%李开航%庄锦清%薛佳梅
許濤%李開航%莊錦清%薛佳梅
허도%리개항%장금청%설가매
交织技术%FPGA%UWB%ChipScope
交織技術%FPGA%UWB%ChipScope
교직기술%FPGA%UWB%ChipScope
interleaving technology%FPGA%UWB%ChipScope
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。
攷慮到超寬帶無線通信繫統在高精度定位中需要極低的誤碼率，而實際通信中比特差錯經常成串髮生，為此在MB?OFDM?UWB通信中採用一種交織技術將連續誤碼分散成非連續誤碼，這樣信道的突髮錯誤在時間上得以擴散，使得此類誤碼大為降低，在接收耑利用解交織器完成反交織。以上方案利用FPGA編程實現，併下載到目標闆中，使用ChipScope在線測試和驗證設計的正確性。
고필도초관대무선통신계통재고정도정위중수요겁저적오마솔，이실제통신중비특차착경상성천발생，위차재MB?OFDM?UWB통신중채용일충교직기술장련속오마분산성비련속오마，저양신도적돌발착오재시간상득이확산，사득차류오마대위강저，재접수단이용해교직기완성반교직。이상방안이용FPGA편정실현，병하재도목표판중，사용ChipScope재선측시화험증설계적정학성。
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.
