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In this paper, a novel approach for system design and hardware realization of wireless chaotic digital speech communication via digital signal processor (DSP) is proposed. According to Runge-Kutta algorithm and variable ratio expansion transformation, taking multi-scroll generalized Jerk as an example, the continuous chaotic system is converted to the discrete chaotic one so as to generate chaotic digital sequences, which are used for speech data encryption and decryption. Based on the DSP technical platform with TMS320VC5509APGE chip, by utilizing nRF2401 wireless transmitter and receiver, wireless chaotic digital speech communication is successfully implemented. The results of technical design and hardware realization are also given, which confirms the feasibility of the scheme.
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Keywords:
- digital signal processor /
- multi-scroll generalized Jerk system /
- wireless chaotic digital speech communication /
- hardware implementation
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[19] ］Yu S M, Lü J H, Leung H, Chen G R 2005 IEEE Trans. Circuits Syst.Ⅰ52 1459
[20] ］Chen L, Wang D S 2007 Acta Phys. Sin. 56 5661(in Chinese) ［谌龙、王德石 2007 物理学报 56 5661］
[21] ］Li Y X 2008 J Commu. 29 46(in Chinese) ［李育贤 2008 通信学报 29 46］
[22] ］Yan S L 2005 Acta Electro. Sin. 33 267 (in Chinese) ［颜森林 2005 电子学报 33 267］
[23] ］Liu F C, Liang X M, Song J Q 2008 Acta Phys. Sin. 57 1458 (in Chinese) ［刘福才、梁晓明、宋佳秋 2008 物理学报 57 1458］
[24] ］Yu N, Ding Q, Chen H 2007 J. Commu. 28 73(in Chinese) ［于娜、丁群、陈红 2007 通信学报 28 73］
[25] ］Yu S M, Qiu S S 2002 J. Commu. 23 105 (in Chinese) ［禹思敏、丘水生 2002 通信学报 23 105］
[26] ］Zhang Y,Chen T Q,chen B 2007 Acta Phys. Sin. 56 56(in Chinese) ［张勇、陈天麒、陈滨 2007 物理学报 56 56］
[27] ］Yan S L, Wang S Q 2006 Acta Phys. Sin. 55 1687(in Chinese) ［颜森林、汪胜前 2006 物理学报 55 1687］
[28] ］Sun L, Jiang D P 2006 Acta Phys. Sin. 55 3283(in Chinese) ［孙琳、姜德平 2006 物理学报 55 3283］
[29] ］Zhang P S, Zhu Y S 2007 J. Electro. Infor. Techn. 29 2359 (in Chinese) ［赵柏山、朱义胜 2007 电子与信息学报 29 699］
[30] ］He H J, Zhang J S 2006 J. Commu. 27 80(in Chinese) ［和红杰、张家树 2006 通信学报 27 80］
[31] ］Sun K H,Zhou J L,Mou J 2007 J. Electro. Infor. Techn. 29 2436 (in Chinese) ［孙克辉、周家令、牟俊 2007 电子与信息学报 29 2436］
[32] ］Wang F P, Wang Z J, Guo J B 2003 Acta Electro. Sin. 31 127 (in Chinese) ［汪芙平、王赞基、郭静波 2003 电子学报 31 127］
[33] ］Han J Q, Zhu Y S 2006 J. Electro. Infor. Techn. 28 2359 (in Chinese) ［韩建群、朱义胜 2006 电子与信息学报 28 2359］
[34] ］Liao N H,Gao J F 2006 J. Electro. Infor. Techn. 28 1255 (in Chinese) ［廖旎焕、高金峰 2006 电子与信息学报 28 1255］
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[1] ［1］Pecora L M, Carroll T L 1990 Phys. Review Lett. 64 821
[2] ［2］Yang T, Chua L O 1996 IEEE Trans. CAS-I 43 817
[3] ［3］Dedieu H, Kennedy M P 1993 IEEE Trans. CAS-I 40 634
[4] ［4］Yang T, Chua L O 1997 Int. J. Bifurc. Chaos 7 2789
[5] ［5］Feldmann U, Hasler M, Schwarz W 1996 Int. J. Circuit Theory Appl. 24 551
[6] ［6］Halle K S, Wu C W, Itoh M, Chua L O 1993 Int. J. Bifurc. Chaos 3 469
[7] ［7］Apostolos A 2005 Nature 437 343
[8] ［8］Sushchik M, Rulkov N, larson L, tsimring L, Abarbanel H, Yao K 2000 IEEE Commun. Lett. 4 128
[9] ［9］Khadra A, Liu X Z, Shen X 2005 Automatica 41 1491
[10] ］Cong L, Xiaofu W 2001 IEEE Trans. CAS-I 48 521
[11] ］Lü J H, Chen G R 2006 Int. J. Bifurc. Chaos 16 775
[12] ］Suykens J A K, Vandewalle J 1993 IEEE Trans. CAS-I 40 861
[13] ］Yalcin M E, J. Suykens J A K, Vandewalle J, Ozoguz S 2002 Int. J. Bifurc. Chaos 12 23
[14] ］Lü J H, Yu S M, Leung H, Chen G R 2006 IEEE Trans. CAS-I 53 149
[15] ］Yu S M, Lü J H, Chen G R 2007 IEEE Trans. CAS-I 54 2087
[16] ］Milanovic V, Zaghloul M E 1996 Electron. Lett. 32 11
[17] ］Zhou W J, Yu S M 2009 Acta Phys. Sin. 58 113 (in Chinese) ［周武杰、禹思敏 2009 物理学报 58 113］
[18] ］Dmitriev A S, Panas A I, Starkov S O 1997 Int. J. Bifurc. Chaos 7 2511
[19] ］Yu S M, Lü J H, Leung H, Chen G R 2005 IEEE Trans. Circuits Syst.Ⅰ52 1459
[20] ］Chen L, Wang D S 2007 Acta Phys. Sin. 56 5661(in Chinese) ［谌龙、王德石 2007 物理学报 56 5661］
[21] ］Li Y X 2008 J Commu. 29 46(in Chinese) ［李育贤 2008 通信学报 29 46］
[22] ］Yan S L 2005 Acta Electro. Sin. 33 267 (in Chinese) ［颜森林 2005 电子学报 33 267］
[23] ］Liu F C, Liang X M, Song J Q 2008 Acta Phys. Sin. 57 1458 (in Chinese) ［刘福才、梁晓明、宋佳秋 2008 物理学报 57 1458］
[24] ］Yu N, Ding Q, Chen H 2007 J. Commu. 28 73(in Chinese) ［于娜、丁群、陈红 2007 通信学报 28 73］
[25] ］Yu S M, Qiu S S 2002 J. Commu. 23 105 (in Chinese) ［禹思敏、丘水生 2002 通信学报 23 105］
[26] ］Zhang Y,Chen T Q,chen B 2007 Acta Phys. Sin. 56 56(in Chinese) ［张勇、陈天麒、陈滨 2007 物理学报 56 56］
[27] ］Yan S L, Wang S Q 2006 Acta Phys. Sin. 55 1687(in Chinese) ［颜森林、汪胜前 2006 物理学报 55 1687］
[28] ］Sun L, Jiang D P 2006 Acta Phys. Sin. 55 3283(in Chinese) ［孙琳、姜德平 2006 物理学报 55 3283］
[29] ］Zhang P S, Zhu Y S 2007 J. Electro. Infor. Techn. 29 2359 (in Chinese) ［赵柏山、朱义胜 2007 电子与信息学报 29 699］
[30] ］He H J, Zhang J S 2006 J. Commu. 27 80(in Chinese) ［和红杰、张家树 2006 通信学报 27 80］
[31] ］Sun K H,Zhou J L,Mou J 2007 J. Electro. Infor. Techn. 29 2436 (in Chinese) ［孙克辉、周家令、牟俊 2007 电子与信息学报 29 2436］
[32] ］Wang F P, Wang Z J, Guo J B 2003 Acta Electro. Sin. 31 127 (in Chinese) ［汪芙平、王赞基、郭静波 2003 电子学报 31 127］
[33] ］Han J Q, Zhu Y S 2006 J. Electro. Infor. Techn. 28 2359 (in Chinese) ［韩建群、朱义胜 2006 电子与信息学报 28 2359］
[34] ］Liao N H,Gao J F 2006 J. Electro. Infor. Techn. 28 1255 (in Chinese) ［廖旎焕、高金峰 2006 电子与信息学报 28 1255］
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