Scheme and experiment of fast frequency hopping communication system based on SDR
A fast frequency hopping scheme based on SDR was proposed to solve the problem that the existing fast frequency hopping communication system relied on satellite timing.Firstly, a true random sequence was used to perform frequency hopping operation on the modulated signal in this scheme.And the frequ...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2022-08-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2022155/ |
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| _version_ | 1841539959479074816 |
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| author | Chengyu WEN Conghui LIAO Hang XIONG Hong DU |
| author_facet | Chengyu WEN Conghui LIAO Hang XIONG Hong DU |
| author_sort | Chengyu WEN |
| collection | DOAJ |
| description | A fast frequency hopping scheme based on SDR was proposed to solve the problem that the existing fast frequency hopping communication system relied on satellite timing.Firstly, a true random sequence was used to perform frequency hopping operation on the modulated signal in this scheme.And the frequency hopping table was obtained by channel down-conversion, low-pass filtering and amplitude peak detection operations.Secondly, the receiver searched for the precise starting point by the peak-to-peak distribution characteristics of the quadrature demodulation amplitude of the baseband signal after de-hopping.Finally, down-conversion was performed and the peak-to-peak amplitude of the quadrature demodulation was checked for exceeding the threshold value to achieve de-hopping for frequency hopping signals.The effectiveness and adaptability of the proposed scheme is verified by using two general-purpose SDR devices with a hopping rate of four hops per symbol period in a real channel with other continuous signals. |
| format | Article |
| id | doaj-art-1d3d868284314af994799d45f4cc5c08 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2022-08-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-1d3d868284314af994799d45f4cc5c082025-01-14T06:29:03ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2022-08-014323123859392682Scheme and experiment of fast frequency hopping communication system based on SDRChengyu WENConghui LIAOHang XIONGHong DUA fast frequency hopping scheme based on SDR was proposed to solve the problem that the existing fast frequency hopping communication system relied on satellite timing.Firstly, a true random sequence was used to perform frequency hopping operation on the modulated signal in this scheme.And the frequency hopping table was obtained by channel down-conversion, low-pass filtering and amplitude peak detection operations.Secondly, the receiver searched for the precise starting point by the peak-to-peak distribution characteristics of the quadrature demodulation amplitude of the baseband signal after de-hopping.Finally, down-conversion was performed and the peak-to-peak amplitude of the quadrature demodulation was checked for exceeding the threshold value to achieve de-hopping for frequency hopping signals.The effectiveness and adaptability of the proposed scheme is verified by using two general-purpose SDR devices with a hopping rate of four hops per symbol period in a real channel with other continuous signals.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2022155/frequency hopping communicationsoftware defined radiominimum frequency-shift keyingde-hopping |
| spellingShingle | Chengyu WEN Conghui LIAO Hang XIONG Hong DU Scheme and experiment of fast frequency hopping communication system based on SDR Tongxin xuebao frequency hopping communication software defined radio minimum frequency-shift keying de-hopping |
| title | Scheme and experiment of fast frequency hopping communication system based on SDR |
| title_full | Scheme and experiment of fast frequency hopping communication system based on SDR |
| title_fullStr | Scheme and experiment of fast frequency hopping communication system based on SDR |
| title_full_unstemmed | Scheme and experiment of fast frequency hopping communication system based on SDR |
| title_short | Scheme and experiment of fast frequency hopping communication system based on SDR |
| title_sort | scheme and experiment of fast frequency hopping communication system based on sdr |
| topic | frequency hopping communication software defined radio minimum frequency-shift keying de-hopping |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2022155/ |
| work_keys_str_mv | AT chengyuwen schemeandexperimentoffastfrequencyhoppingcommunicationsystembasedonsdr AT conghuiliao schemeandexperimentoffastfrequencyhoppingcommunicationsystembasedonsdr AT hangxiong schemeandexperimentoffastfrequencyhoppingcommunicationsystembasedonsdr AT hongdu schemeandexperimentoffastfrequencyhoppingcommunicationsystembasedonsdr |