We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
强干扰环境下 LDPC 编码慢跳频系统的传输方法设计.
- Authors
王任之; 潘克刚; 赵瑞祥; 王洪斌
- Abstract
To further improve the anti-jamming ability of the frequency hopping ( FH) communication system, based on the low-density parity-check(LDPC) coded slow FH(SFH) anti-jamming communication system, a new codewords transmission method called "Bit pre-store" is proposed. Some bits of each segment after encoded are copied in a bit selection principle of column-degree size, and pre-stored randomly in the front end of other segments. After the interference bits are zeroed by the receiver, the bits are merged and restored and the decoding is completed. Simulation analysis shows that the proposed method can choose different storage proportions flexibly according to the communication quality requirements of different communication scenarios under the strong jamming environment, and the error correction ability can be improved from 6-hop error correction by the original method to 7-hop or even 8-hop error correction at an affordable cost. Under different jamming conditions, the anti-jamming performance of the proposed method is greatly improved compared with that of the original transmission method.
- Publication
Telecommunication Engineering, 2021, Vol 61, Issue 9, p1136
- ISSN
1001-893X
- Publication type
Academic Journal
- DOI
10.3969/j.issn.1001-893x.2021.09.012