Open AccessIntegrated Waveform Design for Centralized MIMO-OFDM-BPSK-LFM Radar Communication
Author(s) -
Qicheng Ma,
J. Y. Lu,
Duo Liu,
Yunfan Kong
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1920/1/012098
Subject(s) - phase shift keying , electronic engineering , computer science , transmission (telecommunications) , waveform , modulation (music) , mimo , signal (programming language) , telecommunications , orthogonal frequency division multiplexing , channel (broadcasting) , radar , bit error rate , engineering , physics , acoustics , programming language
Because the signal amplitude corresponding to the phase of BPSK modulation is ±1, it’s autocorrelation function is shaped like a mountain peak. The fuzzy function of BPSK-LFM is multiplied by two parts, the left part is the fuzzy function of the standard LFM signal, and the right part is the autocorrelation function of the BPSK communication symbol, which won’t change with the random change of the communication symbol. Therefore, the fuzzy function performance of BPSK-LFM signal is better than that of LFM signal, but the transmission rate of communication is low. The shape of the fuzzy function will change with the change of random communication symbol in QPSK-LFM and 8PSK-LFM modulation. OFDM multi-carrier modulation can improve spectrum efficiency and communication transmission rate. MIMO technology can multiply channel capacity and spectrum efficiency without increasing signal bandwidth B. As a result, the integrated radar communication signal designed in this paper is a centralized MIMO-OFDM-BPSK-LFM signal. The distance between receiving antennas and transmitting antennas is very small in centralized MIMO radars, which is easy to place together.