Research on reducing PAPR of QAM-OFDM radar-communication integration sharing signal

The Journal of Engineering

关键词: ofdm modulation;    quadrature amplitude modulation;    error statistics;    papr;    qam-ofdm radar-communication integration;    peak-to-average power ratio;    sharing signal;    quadrature amplitude modulation-orthogonal frequency division;    active constellation extension algorithm;    active constellation expansion algorithm;   

DOI  :  10.1049/joe.2019.0726

来源: DOAJ

【 摘 要 】

In order to solve the problem of high peak-to-average power ratio (PAPR) of the sharing signal for radar-communication integration based on quadrature amplitude modulation-orthogonal frequency division multiplexing modulation, according to the theoretical model of the sharing signal, the authors analyse the PAPR, subsequently employing the active constellation extension algorithm to suppress the PAPR of the sharing signal. The simulation results show that, with designing the number of iterations reasonably, the active constellation expansion algorithm will effectively reduce the PAPR of the sharing signal. Meanwhile, for radar sub-systems, the target detection performance and the transmitter power are less affected. For communication sub-systems, the error vector magnitude is small, and the bit error rate of the system is comparable to the original signal.

【 授权许可】

Unknown