电子器件Issue(1)：97-102,6.DOI:10.3969/j.issn.1005-9490.2014.01.024
基于（2,1,7）卷积码实现低误码率通信的DSP设计
DSP Design Based on the(2,1,7) Convolutional Code to Achieve Low Error Rate Communication
摘要
Abstract
In order to reduce transmission errors in digital communication systems,and enhance the reliability of the channel,from the perspective of engineering application,DSP technology is utilized to achieve(2,1,7)convolutional code. Using MATLAB to simulate the factor of affecting(2,1,7) convolutional code performance and compare that with convolutional code of constraint length 3 and code rate 3/4,2/3 respectively,the result lays the theoretical foundation for hardware implementation. Finally,TI Company's TMS320DM6437 is applied to run in CCS3. 3 envi-ronment. The experiment shows that after convolutional code of constraint length 7 and code rate 1/2,error code rate can still achieve 10-6 in lower SNR( SNR=6 dB) . And DSP hardware implements works easily,operates stably and fast,decodes correctly and has a strong error correction capability.关键词
信道编码/(2,1,7)卷积码/DSP实现/低误码率/约束长度/码率/MATLAB仿真Key words
channel coding/(2,1,7) convolutional code/DSP implement/low error rate communication/constraint length/code rate/MATLAB simulation分类
信息技术与安全科学引用本文复制引用
王宏俊,杜长斌,杨自恒,丁群..基于（2,1,7）卷积码实现低误码率通信的DSP设计[J].电子器件,2014,(1):97-102,6.基金项目
国家自然科学基金项目(61072072) （61072072）
黑龙江省高校“现代传感技术”创新团队项目(2012TD007) （2012TD007）
