Title:
RADAR-COMMUNICATION INTEGRATION SIGNAL GENERATING AND RECEIVING METHOD BASED ON RANDOM STEP FREQUENCY OFDM
Document Type and Number:
WIPO Patent Application WO/2023/065374
Kind Code:
A1
Abstract:
Disclosed in the present invention is a radar-communication integration signal generating and receiving method based on random step frequency OFDM, comprising: generating a radar-communication integration signal; modulating the step frequency of each pulse in each symbol of a first pulse; modulating, in a corresponding symbol of a second pulse, user information to be communicated; modulating the communication information in the third to last pulses; performing up-conversion on a baseband signal of each pulse according to the step frequency and sending a signal; and receiving the radar-communication integration signal: performing down-conversion on the first pulse and demodulating to obtain the step frequency of each pulse, performing down-conversion on the second pulse according to the step frequency and demodulating to obtain the user information, and performing down-conversion on the third to last pulses according to the step frequency and demodulating to obtain the communication information. According to the present invention, one-point-to-multipoint communication in a radar-communication integration system can be realized, and confidential communication in a special system is realized by using the random step frequency of each pulse.
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Inventors:
ZHANG ZHENKAI (CN)
WANG XIAOJIANG (CN)
JIN BIAO (CN)
SHANG SHANG (CN)
XI CAIPING (CN)
SU YINJIE (CN)
LIAN ZHUXIAN (CN)
WANG XIAOJIANG (CN)
JIN BIAO (CN)
SHANG SHANG (CN)
XI CAIPING (CN)
SU YINJIE (CN)
LIAN ZHUXIAN (CN)
Application Number:
PCT/CN2021/126142
Publication Date:
April 27, 2023
Filing Date:
October 25, 2021
Export Citation:
Assignee:
UNIV JIANGSU SCIENCE & TECH (CN)
International Classes:
H04L27/26
Foreign References:
| CN108627818A | 2018-10-09 | |||
| CN107786480A | 2018-03-09 | |||
| CN111953378A | 2020-11-17 | |||
| CN108768446A | 2018-11-06 | |||
| US20170131394A1 | 2017-05-11 |
Other References:
SCHWEIZER BENEDIKT; SCHINDLER DANIEL; KNILLL CHRISTINA; HASCH JIIRGEN; WALDSCHMIDT CHRISTIAN: "On Hardware Implementations of Stepped-Carrier OFDM Radars", 2018 IEEE/MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM - IMS, IEEE, 10 June 2018 (2018-06-10), pages 891 - 894, XP033387905, DOI: 10.1109/MWSYM.2018.8439179
Attorney, Agent or Firm:
NANJING SUGAO PATENT AND TRADEMARK FIRM (ORDINARY PARTNERSHIP) (CN)
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