LV Guan-da,DU Yu-ming,WU Fang-lai,et al.An Improved Method of Block Interleaving and FPGA Implementation[J].Journal of Chengdu University of Information Technology,2018,(06):650-653.[doi:10.16836/j.cnki.jcuit.2018.06.009]
一种改进的块交织方法及FPGA实现
- Title:
- An Improved Method of Block Interleaving and FPGA Implementation
- 文章编号:
- 2096-1618(2018)06-0650-04
- Keywords:
- block interleaving; input and output continuously; matrix extension; switch in row and column
- 分类号:
- TN929.5
- 文献标志码:
- A
- 摘要:
- 无线图传系统中的块交织方法是对一帧数据进行交织。传统块交织方法将一帧数据完全写入交织块后再按序读出,这在一定程度上影响了数据流的连贯性。乒乓操作能实现数据同时读写,保证输入输出连续,但需要占用更多的系统资源。针对二者之间的矛盾,对原有块交织方法进行了改进。改进方法将交织矩阵扩展为一个正方形,数据执行行列交替读写。仿真结果表明,与传统块交织方法和乒乓操作方法相比,改进的块交织方法不仅能获得连续的数据输出,而且只消耗乒乓操作一半的系统资源。
- Abstract:
- The block interleaving method in the wireless image transmission system is to interleave a frame of data. The traditional method of block interleaving writes one frame of data into the interleaving block completely and then reads it in order. This affects the coherence of the data flow to some extent. It requires more system resources for ping-pong operation to read and write data at the same time, which ensuring continuous input and output. Considering the contradiction between the two methods, this paper improves the original block interleaving method. The improved method expands the interleaving matrix into a square, with data rows and columns alternately reading and writing. The simulation results show that, compared with the traditional block interleaving method and the ping-pong operation method, the improved method not only can obtain continuous output data, but also consumes half of the system resources inping-pong operation.
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备注/Memo
收稿日期:2018-03-28