A Secure Image Transmission Scheme Based on Improved DCSK
Non-coherent demodulation technology is applied in the differential chaos shift keying（DCSK）and it's unnecessary for the receiver to generate chaotic synchronous signals at the receiving end. The structure in DCSK is simple and has good performance in anti-noise. However, it is lack of performa...
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| Format: | Article |
| Language: | zho |
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Beijing Xintong Media Co., Ltd
2013-06-01
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| Series: | Dianxin kexue |
| Subjects: | |
| Online Access: | http://www.telecomsci.com/zh/article/doi/10.3969/j.issn.1000-0801.2013.06.014/ |
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| _version_ | 1841529240697176064 |
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| author | Lifang He Gang Zhang Tianqi Zhang |
| author_facet | Lifang He Gang Zhang Tianqi Zhang |
| author_sort | Lifang He |
| collection | DOAJ |
| description | Non-coherent demodulation technology is applied in the differential chaos shift keying（DCSK）and it's unnecessary for the receiver to generate chaotic synchronous signals at the receiving end. The structure in DCSK is simple and has good performance in anti-noise. However, it is lack of performance in security, and easier to be cracked. A modified DCSK scheme was proposed for the security problems caused by the traditional DCSK scheme. It retains the good performance of the old one and greatly increases security performance at the same time. The theoretical analysis toward the system was deeply carried out. The relationship among the BER, the frequency spread factor and SNR were also deeply analyzed. Finally, it was applied in an image transmission system as an example. The simulation results indicate that the performance of the bit error ratio（BER）and security are greatly improved. The feasibility was also proved by simulations. |
| format | Article |
| id | doaj-art-2bda2362fb3a4062b87447f76fa4df56 |
| institution | Kabale University |
| issn | 1000-0801 |
| language | zho |
| publishDate | 2013-06-01 |
| publisher | Beijing Xintong Media Co., Ltd |
| record_format | Article |
| series | Dianxin kexue |
| spelling | doaj-art-2bda2362fb3a4062b87447f76fa4df562025-01-15T03:22:24ZzhoBeijing Xintong Media Co., LtdDianxin kexue1000-08012013-06-0129949959628180A Secure Image Transmission Scheme Based on Improved DCSKLifang HeGang ZhangTianqi ZhangNon-coherent demodulation technology is applied in the differential chaos shift keying（DCSK）and it's unnecessary for the receiver to generate chaotic synchronous signals at the receiving end. The structure in DCSK is simple and has good performance in anti-noise. However, it is lack of performance in security, and easier to be cracked. A modified DCSK scheme was proposed for the security problems caused by the traditional DCSK scheme. It retains the good performance of the old one and greatly increases security performance at the same time. The theoretical analysis toward the system was deeply carried out. The relationship among the BER, the frequency spread factor and SNR were also deeply analyzed. Finally, it was applied in an image transmission system as an example. The simulation results indicate that the performance of the bit error ratio（BER）and security are greatly improved. The feasibility was also proved by simulations.http://www.telecomsci.com/zh/article/doi/10.3969/j.issn.1000-0801.2013.06.014/differential chaos shift keyingmodulationbit error ratio |
| spellingShingle | Lifang He Gang Zhang Tianqi Zhang A Secure Image Transmission Scheme Based on Improved DCSK Dianxin kexue differential chaos shift keying modulation bit error ratio |
| title | A Secure Image Transmission Scheme Based on Improved DCSK |
| title_full | A Secure Image Transmission Scheme Based on Improved DCSK |
| title_fullStr | A Secure Image Transmission Scheme Based on Improved DCSK |
| title_full_unstemmed | A Secure Image Transmission Scheme Based on Improved DCSK |
| title_short | A Secure Image Transmission Scheme Based on Improved DCSK |
| title_sort | secure image transmission scheme based on improved dcsk |
| topic | differential chaos shift keying modulation bit error ratio |
| url | http://www.telecomsci.com/zh/article/doi/10.3969/j.issn.1000-0801.2013.06.014/ |
| work_keys_str_mv | AT lifanghe asecureimagetransmissionschemebasedonimproveddcsk AT gangzhang asecureimagetransmissionschemebasedonimproveddcsk AT tianqizhang asecureimagetransmissionschemebasedonimproveddcsk AT lifanghe secureimagetransmissionschemebasedonimproveddcsk AT gangzhang secureimagetransmissionschemebasedonimproveddcsk AT tianqizhang secureimagetransmissionschemebasedonimproveddcsk |